promotion of environmental technologies material balance … · 2018-09-19 · promotion of...
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The Tokyo Gas Group's Approach to
Environmental Action
Environmental Protection Guideline
Targets and Results
Results of Efforts in FY2014
Continual Improvement of Environmental
Management System
Measures Taken against Environmental
Risks
Education and Activities to Raise
Employees' Awareness
Global Warming Countermeasures
Promotion of Resource Saving Promotion of Biodiversity Conservation
Promotion of Environmental Technologies
Development
Tokyo Gas Group Business Activities and
Material Balance
Environmental Performance Data (1)
Usage of Energy & Water / Emissions into
the Atmosphere & Water Systems
Environmental Performance Data (2)
Waste
Environmental Accounting
Development and Implementation of Local
Global Warming Action Plans
City Gas CO Emission Factors
Assessment of CO Emission Reduction
due to Reduction of Purchased Electricity
About Third Party Assurance
Link to related page
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As a leader in environmental management, the Tokyo Gas Group will actively promote the protection of
regional and global environments and contribute to the sustainable development of society in line with its
management philosophy to "contribute to the creation of a pleasant lifestyle and environmentally friendly
society as a leading energy company with a focus on the natural gas business."
<Link>Environmental Superiority of Natural Gas
The Tokyo Gas Group will promote more sustainable ways of energy use to contribute to the protection of
regional and global environments as well as to the sustainable development of society.
1. Reduction of the Environmental Impact of Customers' Energy Use Tokyo Gas will actively and continuously attempt to reduce the environmental impact of customers'
energy use by promoting the use of environmentally friendly energy (natural gas) and providing highly
efficient appliances and systems.
2. Reduction of the Total Environmental Impact of Tokyo Gas's BusinessOperations Tokyo Gas will continuously reduce energy intensity and resources used in its business operations
through the implementation of efficient and effective environmental management to contribute to the
realization of a sustainable society. At the same time, we will reduce our business operations' overall
environmental impact by aggressively promoting "green purchasing" and the 3R initiatives (Reduce,
Reuse, and Recycle).
3. Strengthening of Environmental Partnerships with the Local and InternationalCommunities Tokyo Gas will strengthen its environmental partnerships with both the local and international
communities by engaging in a wide variety of programs, such as participation in local environmental
events and technology transfers to developing countries.
4. Promotion of Green Technology R&D Programs Tokyo Gas will promote R&D programs for environmental technologies, including renewable energy,
to protect regional and global environments.
Environmental Philosophy
Environmental Policies
Environmental Protection Guidelines
Tokyo Gas formulated its Environmental Protection Guidelines in fiscal 2000 to establish mid and long
term targets for environmental activities in line with its Environmental Philosophy and Environmental
Policies. In fiscal 2005, the scope of these guidelines was expanded to include subsidiaries and affiliates in
pursuit of environmental action in three core areas: global warming countermeasures, promotion of
resource saving, and promotion of green purchasing. In fiscal 2009, three additional core areas were added
with the aim of creating a low carbon, resourcesaving society that coexists with nature: promotion of
biodiversity conservation, promotion of environmental communication, and promotion of environmental
technology development. The guidelines have been revised to assist the realization of the Challenge 2020
Vision announced in fiscal 2011, and we are making a groupwide effort to put them into practice.
Overview Image of Environmental Protection Guidelines
Following the formulation of the Challenge 2020 Vision, Tokyo Gas Group revised its Environmental
Protection Guidelines in 2014 and made fiscal 2020 its target year. The Guidelines for Global Warming
Countermeasures were previously revised in 2012.
Environmental Protection Guidelines (FY2014 Numerical Targets and Results)
Category Environmental ProtectionGuidelines
FY2014 numericaltargets
FY2014 results
FY2015 numericaltargets
Global warmingcountermeasures
Customers'sites
We aim to reduce COemissions at customers' sitesby 8 million tons by fiscal2020. This will be achievedthrough our Group effortsimplemented since fiscal2011 to promote the use ofnatural gas and to developand disseminate gasequipment and systems thathave higher efficiency andlower environmental load.1
Reduce COemissions by 3.00million tons
Reduced COemissions by 3.29million tons
Reduce COemissions by 3.40million tons
Electricpowerbusiness
We aim to achieve a COemission factor of 0.35 kg CO /kWh by fiscal 2020 forour electric powerbusiness.2
CO emissionfactor 0.36
CO emissionfactor 0.359
CO emissionfactor 0.36
Businessactivities
(1) We aim to meet anenergy usage intensity target(consumption of primaryenergy per gas productionunit) of 250 GJ/million m atour LNG terminals by fiscal2020.
Energyusageintensity of 210GJ/millionm
Energyusageintensity of 203GJ/millionm
Energyusageintensity of 220GJ/millionm
(2) We aim to meet a heatsales intensity target(consumption of primaryenergy per heat sales unit) of1.19 GJ/GJ at district heatingand cooling centers by fiscal2020.
Heat sales intensity 1.35GJ/GJ
Heat sales intensity 1.34GJ/GJ
Heat sales intensity 1.33GJ/GJ
(3) We aim to meet anenergy usage reductiontarget (primary energy usage)of 910TJ at our offices, etc.by fiscal 2020.
Energyusage 935TJ
Energyusage 896TJ
Energyusage 915TJ
Environmental Protection Guidelines (FY2014 Numerical Targets andResults)
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Promotingthewidespreaduse ofrenewableenergy
We are working to contributeto the realization of a lowcarbon society through effortsto maximize theimplementation of renewableenergy. Such efforts includeproviding products andservices that utilizerenewable energy, supplyingrenewable energy (includingpower generationbusinesses), and promotingboth networked use of energyand energy usage in certainaspects.
Promotion ofresource saving
Industrialwaste
(1) Production plants withinour Group will maintain zeroemissions (defined as a finaldisposal rate of less than0.1%) until fiscal 2020through the reduction, reuse,and recycling of industrialwaste. 3, 4
Final disposalrate less than0.1%
Final disposalrate 1.2%
Final disposalrate less than0.1%
(2) We will maintain therecycling rate of constructionwaste produced frombusiness activities by ourGroup companies at 98% orabove until fiscal 2020.
Recyclingrate 98% or above
Recyclingrate 97%
Recyclingrate 98% or above
(3) We will achieve therecycling rate of industrialwaste produced at the sitesof our Group companies to90% or above by fiscal 2020.5
Recyclingrate 88% or above
Recyclingrate 85%
Recyclingrate 88% or above
Generalwaste
(1) Our Group companies willwork to reduce the amount ofgeneral waste produced andincrease the recycling rate ofgeneral waste to 75% orabove by fiscal 2020 throughstricter separation of wasteand the promotion ofrecycling.
Recyclingrate 75% or above
Recyclingrate 79%
Recyclingrate 75% or above
(2) We will reduce theamount of copy paper usedby our Group companies by8% relative to the amountused in fiscal 2012 to 132million sheets or less by fiscal2020. 6
Reduction by 1% from previousyear
Reduction by 4.6% from previousyear
Reduction by 1% from previousyear
Excavatedsoil
We are working to reduce,reuse, and recycle (3Rs)excavated soil arising fromroadside construction work Reduce Reduced Reduce
ordered by our company andits subsidiaries and affiliates.Through these efforts, we willmaintain the amount ofexcavated soil at 16% or lessuntil fiscal 2020.7
excavatedsoil to 16% or less
excavatedsoil to 16.7%
excavatedsoil to 16% or less
Promotion of biodiversityconservation
Our Group companies areaware of the importance ofthe benefits born frombiodiversity (ecosystemservice). As such, we work tounderstand and analyze theimpacts our businessactivities have onbiodiversity, and work toimprove our businessoperations, promotingactivities for biodiversityconservation. Moreover, aspart of our social programs,we are also involved inissues concerningbiodiversity, even in areasthat are not related to ourown business activities.
Promotion of greenpurchasing
(1) Our Group companieswork in concert with ourbusiness partners toward therealization of a low carbonsociety by making effortstoward energy conservationand CO reduction in ourpurchasing activities.
(2) Our Group companieswork in concert with ourbusiness partners toward therealization of a resourcesaving society through ourpurchasing activities, bymaking efforts to promote the3Rs (reducing wasteproduced, reusing, andrecycling) for gas meters, gaspipes, paper, and otheritems.
(3) The green purchasingrate for purchases madethrough electronic catalogswill be maintained at 75% orabove until fiscal 2020.8
Greenpurchasingrate of 75%
Greenpurchasingrate of 78%
Greenpurchasingrate of 75%
Promotion of environmentalcommunication
The Tokyo Gas Group workstogether with our customersunder a variety of programsto create the kind of eco
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friendly and happy lifestylesthat are desired for asustainable future. (1) We work with localcommunities through ourenvironmental contributionactivities and provideinformation on easy ways toconserve energy, thushelping to realize anenvironmentally friendlylifestyle together with ourcustomers.
(2) We are communicatingwith stakeholders, includingfuture generations, to helpthem learn about theimportance of energy and theenvironment, how they relateto each person, and how theTokyo Gas Group contributesto environmental protection.
(3) We are fosteringenvironmental consciousnessamong Tokyo Gas Groupemployees and their families,and encouraging them towork toward environmentalconservation in their offices,homes, and communities.
Promotion of environmentaltechnologies development
We will accelerate thedevelopment of innovativeenvironmental technologiesin the fields of fuel cells,renewable energy, and in themanagement of hydrogenand CO , and will promotethe expansion of a smartenergy network.
Notes:
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Reduction of CO emissions through "Global warming countermeasures at customers' sites" has been calculated in thecategories of cogeneration (including ENEFARM) installation, enhanced efficiency of gas equipment, fuel switching, anddiffusion of power generation from natural gas power plants. Reduction effects of cogeneration and the increase of powergeneration from natural gas power plants were calculated with a marginal emission factor (0.69kgCO /kWh, 0.65kgCO /kWh).
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The average CO emissions factor for transmitted power of all wholesale electricity, including not only businessuse powerpurchased from power plants of our Group, but also that of other companies and markets.
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"Production plants" refer to sites that produce city gas and other products, district heating and cooling centers, and powerplants.
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Under the new guidelines, "zero emission" is defined as a final disposal rate of less than 0.1%, where the final disposal rateis obtained by dividing the amount of waste disposed of by landfill by total emissions of industrial waste by production plantsper year. However, asbestos and other nonrecyclable industrial waste are excluded.
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Sites refer to our business locations except for production plants and construction work sites. Construction work on mainand branch supply pipelines, for which orders are placed by Tokyo Gas and received by its subsidiaries and affiliates,produces a large amount of industrial waste, most of which is recycled. This has therefore been excluded from this category.
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Amount of copy paper sheets is calculated based on A4sized paper.6
Ratio of actual surplus soil disposed of against baseline when compared to that from conventional construction methods.7
Subject items consist of all items purchased through electronic catalogs, including office supplies, office furniture, office8
Framework for Establishing the Guidelines Index
The framework for establishing quantitative indices for the Environmental Protection Guidelines isexplained in the following section.
Guidelines for Global Warming CountermeasuresIn our city gas business, the amount of CO emissions at customers' sites far exceeds that from ourbusiness operations. Thus, reducing the amount of CO emissions at customers' sites is the utmostimportance, and our targets have been established accordingly.Regarding the CO emissions from our own business operation, our primary goal is to reduce theenergy usage intensity of city gas production at our LNG terminals, which have the highest energyusage. We also reduce absolute emissions from energy usage at our offices, etc. Targets have alsobeen set for reducing CO emission factors and the heat sales intensity of power generation andheating and cooling business.
Guidelines for Promotion of Resource SavingThe gas industry is involved in three waste management fields: industrial waste, general waste, andexcavated soil.In particular, industrial waste is managed by: efforts to achieve zero emissions targets at productionplants of Tokyo Gas Group, and by promoting the 3Rs (Reduce, Reuse, Recycle); and efforts toenhance recycling rate of industrial waste generated from locations other than those production plants.Under the Guidelines revised in fiscal 2014, we are stepping up such efforts by further dividingindustrial waste from locations other than production plants into that from construction sites and thatfrom offices and other locations.When conducting construction work of gas pipeline, roads and other surfaces must be drilled, whichresults in the generation of excavated soil (soil, asphalt concrete, etc.). Thus, we are involved in effortsto reduce, reuse, and recycle in order to reduce the amount of excavated soil generated.
Guidelines for Promoting Green PurchasingWe strive to reduce our overall environmental burden not only by working to improve our ownoperations to use less energy and produce less waste, but also by helping to reduce the environmentalburden in upstream activities through the promotion of green purchasing. Among our efforts, we areindexing and controlling the green purchasing rate targeting overall purchases from electronic catalogs(however, this excludes difficult to acquire ecofriendly items such as tools, safety items, and physicsand chemistry equipment).
fixtures, business cards, envelopes, and printed materials (but excluding tools, safety items, laboratory instruments, etc.).Calculation was made based on the purchase amount.
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Global warming countermeasures at customers´ sites 1
The amount of CO emissions reduction at customers' sites amounted to 3.29 million tons thanks to the
promotion of natural gas use and the development and popularization of more efficient and environmentally
friendly gas appliances such as EcoJOES and cogeneration systems. Increased use of gas to generate
electricity due to the spread of natural gas power generation made an especially significant contribution to
reduced emissions, allowing us to achieve our target.
Global warming countermeasures in our electric power business2
Power demand has remained high since the 2011 Great East Japan Earthquake, and a decline in the
emission factor resulting from increased output against previous year by highefficiency power plants has
enabled us to achieve our target.
Guidelines for Global Warming Countermeasures (Results of Efforts inFY2014)
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Reduction of CO Emissions at Customers' Sites2
Global warming countermeasures in our business activities(1) Global warming countermeasures at LNG terminals
(2) Global warming countermeasures in district heating and cooling centers
CO Emission Factor in the Electric Power Business2
We achieved our target in fiscal 2014 through the promotion of energyefficient operation. However, energy
usage intensity is expected to increase toward fiscal 2020 due to a rise in gas supply pressure to meet
growing gas demand.
Energy Usage Intensity at LNG Terminals
We achieved our target as a result of equipment renewal based on our studies on optimal systems for eachdistrict heating and cooling center.
(3) Global warming countermeasures in Tokyo Gas offices, etc.
Promoting the widespread use of renewable energy
We are verifying the effectiveness of using renewable energy through our efforts to create a smart energy
network, as demonstrated at the Senju Smart Energy Network and Isogo Smart House (Yokohama Smart
City Project), and are applying it to other redevelopment projects. The input and injection of biogas derived
from food waste into city gas is taking place as well. In fiscal 2014, we received 775 thousand m of biogas
(amounting to a CO reduction of about 1,300 tons).
Heat Sales Intensity for District Heating and Cooling Centers
We achieved our target thanks in large part to installation of energyefficient equipment and implementationof energy conservation measures, assisted by lower than usual summer temperatures.
Energy Usage at Offices, etc.
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Reduction of CO emissions through "Global warming countermeasures at customers' sites" has been calculated in thecategories of cogeneration (including ENEFARM) installation, enhanced efficiency of gas equipment, fuel switching, anddiffusion of power generation from natural gas power plants. Reduction effects of cogeneration and the increase of powergeneration from natural gas power plants were calculated with a marginal emission factor (0.69kgCO /kWh, 0.65kgCO /kWh).
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The average CO emissions factor for transmitted power of all wholesale electricity, including not only businessuse powerpurchased from power plants of our Group, but also that of other companies and markets.
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Promoting Resource Saving of Industrial Waste(1) Efforts toward zero emissions at production plants3
Industrial Waste Final Disposal Rate at Production Plants
(2) Efforts to recycle construction waste and industrial waste generated at our offices
Efforts to Recycle Construction Waste and Industrial Waste Generated at Our Sites
Promoting Resource Saving of General Waste
Guidelines for Promoting Resource Saving (Results of Efforts in FY2014)
In fiscal 2014, the definition of "zero emission" was revised downward from a final disposal rate of under
1% to a rate of under 0.1%, and efforts were made to increase recycling. Despite lower emissions than a
year earlier, however, certain materials could not be recycled under our contracts with landfill disposal
contractors, and the final disposal rate remained at 1.2%.
We will continue our efforts to reduce the final disposal rate.
Construction waste
In fiscal 2014, we failed to meet the new target rate set this year for recycling construction waste, due to
increased emissions of nonrecyclable waste during LNG terminal construction. We will continue to
work to reduce emissions and increase recycling.
Industrial waste at our sites 4
Although generation amount in fiscal 2014 was down from a year earlier, some materials could not be
recycled under our contracts with landfill disposal contractors and the recycling rate for the year was
below target. We will continue our efforts to reduce generation amount and recycle more.
Promoting Resource Saving of General Waste(1) Efforts to separate and recycle general waste
We recycled 79% of our general waste in fiscal 2014, exceeding the new target rate for the year of 75% or
over. (As in the previous fiscal year, we succeeded in recycling 95% of our paper waste.) Alongside more
rigorous sorting of waste for recycling, employees are becoming more aware of the importance of cutting
emissions and recycling more. We will continue to work to maintain and raise the recycling rate for general
waste as a whole.
(2) Efforts to reduce usage of copy paper
We achieved our target by cutting copy paper usage by 4.6% from the previous fiscal year. We are
continuing to practice the 3Rs by replacing paper documents with electronic ones (by, for example,
scanning, promoting paperless meetings, and making it easier for employees to keep a visual track of their
paper usage).
We will continue to reduce copy paper usage in order to achieve the challenging target set for fiscal 2020.
Promoting Resource Saving of Excavated SoilPromoting the 3Rs for excavated soil from gas pipeline construction
We were unable to meet our target in fiscal 2014 due to increased replacement of agedeteriorated branch
pipes in the metropolitan areas and work in areas where pit sand recycling was not feasible. We will
continue to pursue the reduction of excavated soil by means of shallower laying of pipes in narrower
trenches and nonopencut construction methods. We will also continue our efforts to obtain approval from
and negotiate a relaxation of conditions with authorities who have not yet approved reburial of generated
soil and the use of improved soil and recycled road surface materials, in order to further reduce the amount
of soil excavated in gas pipeline construction works.
General Waste Generation and Recycling Rate
Copy Paper Usage and Reduction Rate 5
Making efforts at every stage, from natural gas procurement and production to distribution andmaintenance at customers´ sites
Efforts in FY2014
We work to protect biodiversity throughout the Group's value chain. Specifically, the following concrete
activities were pursued at the LNG import and production stages: environmental impact assessments at
gas fields, management of ballast water from LNG carriers, research on the ecosystems of green areas at
LNG terminals, and reduction of pit sand use through reduction, reuse, and recycling of excavated soil
produced during pipeline construction. We also continued our forest preservation activities and habitat
surveys at Nagano Tokyo Gas Forest.
Contributing to the realization of a low carbon society through purchasing activities conductedin concert with our business partners
Efforts in FY2014
All multifunction printers were replaced at our Hamamatsucho Head Office through a competitive tender
process that required proposals to meet specifications in seven categories of environmental friendliness,
resulting in the adoption of highly energyefficient models. We also continued our efforts to reduce delivery
distances through batch delivery of construction materials.
Contributing to the realization of a resourcesaving society through purchasing activities
Ratio of Actual Surplus Soil Disposed of Against Baseline in Gas Pipeline Construction 6
"Production plants" refers to sites that produce city gas and other products, district heating and cooling centers, and powerplants. Waste generation here excludes asbestos and other nonrecyclable industrial waste.
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"Our sites" refers to our business locations except for production plants and construction work sites. Construction work onmain and branch supply pipelines, for which orders are placed by Tokyo Gas and received by its subsidiaries and affiliates,produce a large amount of industrial waste, most of which is recycled. This has therefore been excluded from this category.
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Amount of copy paper sheets is calculated based on A4sized paper.5
"Disposal ratio" refers to the rate of actual surplus soil disposed of against baseline.6
Guidelines for Promoting Biodiversity Conservation (Results of Effortsin FY2014)
Guidelines for Promoting Green Purchasing (Results of Efforts inFY2014)
Contributing to the realization of a resourcesaving society through purchasing activitiesconducted in concert with our business partners
Efforts in FY2014
675 thousand (53%) of the 1,275 thousand meters newly installed were reused, reducing waste by 2,809
tons, while 100% of waste gas pipes were recycled. We are also continuing efforts to recycle waste paper
generated by our company into paper for printing and other uses through the Tokyo Gas Recycled Paper
Program.
Green purchasing rate for purchases through electronic catalogs 7
We achieved our target with a green purchasing rate of 78%. This was thanks to a combination of
measures, including promoting the placement of environmentally friendly items in electronic catalogs,
system modifications to give priority to environmentally friendly products in searches, and data disclosure
by sector. As of the end of fiscal 2014, 15,749 items had been registered as environmentally friendly.
Environmental Activities at the Local Community Level
We provided information on the Group's activities and suggested ways to save energy in everyday life
through a variety of channels, including participation in environmental events organized by local
governments, presentations on environmental topics at universities and other institutions, and publishing
information on our website.
We also aided NPOs and other organizations through the Tokyo Gas Environment Support Fund, passed
on environmentally friendly dietary tips through our "EcoCooking" program, and contributed to the creation
of community green spaces through the Tokyo Gas Tree Planting Project.
Education on energy and the environment for the next generation
Tokyo Gas employees taught special classes in elementary and junior high schools (1,134 classes
reaching 34,190 pupils) and we further provided support for energy and environmental education provided
by teachers (training for 1,273 teachers). We launched our employeetaught special classes in 2002, and
the total number of participating pupils reached the million mark in January 2015. We have also allocated a
greater role to our Gas Science Museum as a center for energy and environmental education, and have
Green Purchasing Rate
Subject items consist of all items purchased through electronic catalogs, including office supplies, office furniture, officefixtures, business cards, envelopes, and printed materials (but excluding tools, safety items, laboratory instruments, etc.).Calculation was made based on the purchase amount.
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Guidelines for Promoting Environmental Communication (Results ofEfforts in FY2014)
launched two new field trip courses: one on the environment and one on energy.
At the Nagano Tokyo Gas Forest, we continued to offer our "Donguri (Acorn) Project," an outdoor
environmental education program.
Through all these activities, we helped provide the children upon whom the future depends with enhanced
opportunities to learn about energy and the environment.
Cultivating environmental consciousness among Tokyo Gas Group employees and their families
We provided a range of programs for Tokyo Gas Group employees, including environmental education,
symposiums, and ecodriving courses.
We also continued our Environmental Program Promotion Award acknowledging the environmental
contributions of Tokyo Gas Group members and business partners, and "family environment classes" for
employees and their families. Through these initiatives, we have cultivated environmental consciousness
among Tokyo Gas Group employees and their families, and encouraged environmentally friendly practice
in the home and in communities.
Development of innovative environmental technologies to contribute to the realization of a lowcarbon society
We have promoted technological development in the fields of fuel cells, renewable energy, hydrogen and
CO management, and smart energy networks. To make hydrogen widely available at hydrogen stations as
a promising nextgeneration energy source, we are developing technologies for lowcost hydrogen
production.
Guidelines for Promoting the Development of EnvironmentalTechnologies (Results of Efforts in FY2014)
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In order to promote environmental protection activities in line with our Management Philosophy, Corporate
Action Philosophy, Our Code of Conduct, and our Environmental Policies, Tokyo Gas has developed and is
operating an EMS (Environmental Management System) that complies with the ISO 14001 international
standard. We are able to systematically conduct a variety of environmental efforts by ensuring that we
follow the PDCA cycle. These efforts include saving resources and energy, which has the additional benefit
of reducing costs. Furthermore, promoting business operations that meet the ISO standard makes
employees more aware of the environment and ensures compliance with the law. And by keeping related
records of these systematic efforts, we enhance the transparency of the Company, thereby increasing the
trust placed in us by our stakeholders.
We have introduced EMS practice, including certification to ISO and EcoAction 21 standards, at
consolidated subsidiaries and affiliates and other group companies that have a major impact on the
environment in order to enhance environmental management throughout the Group. Looking ahead, we will
explore new arrangements for practicing EMS as we construct our new group formation.
Status of implementation of Environmental Management System by Tokyo Gas and its consolidatedsubsidiaries (April 1, 2015)
Tokyo Gas Co., Ltd. [ISO]
Environmental Management System 2015
Efforts of the Group
<Residential Sales and Service Division>Living Engineering Co., Ltd. / Tokyo Gas Remodeling Co., Ltd. / Tokyo Gas Lease Co., Ltd. / Tokyo GasTelemarketing Co., Ltd. / Gastar Co., Ltd. (Residential Sales and Service Division) [ISO] / Tokyo Gas LivingLine Co., Ltd. / Tokyo Gas Lifeval Kazusa Co., Ltd. / Tokyo Gas Lifeval MinamiSetagaya Co., Ltd. / TokyoGas Lifeval Chiba Co., Ltd. / Capty Co., Ltd. (Residential Sales and Service Division) [ISO]
<Energy Solution Division>Gastar Co., Ltd. (Energy Solution Division) [ISO] / Tachikawa ToshiCenter Co., Ltd. / Capty Co., Ltd.(Energy Solution Division) [ISO]
<Regional Development Marketing Division>Tokyo Gas Energy Co., Ltd. / Enelife Carrier Co., Ltd. / Tokyo Auto Gas Co., Ltd. / Tokyo Gas LPGTerminal Co., Ltd. / Chiba Gas Co., Ltd. [ISO] / Tochigi Gas Co., Ltd. [ISO] / Tsukuba Gakuen Gas Co.,Ltd. [ISO] / Washinomiya Gas Co., Ltd. [ISO] / Shoei Gas Co., Ltd. [ISO] / Miho Gas Co., Ltd. / NaganoToshi Gas Co., Ltd. [ISO] / Tokyo Gas Yamanashi Co., Ltd. / Showa Unyu Co., Ltd.
<Pipeline Network Division>Capty Co., Ltd. (Pipeline Network Division) [ISO] / Capty Tech Co., Ltd. 1 / Kawasaki Gas Pipeline Co.,Ltd. 2 / Tokyo Gas Pipeline Co., Ltd.
<Regasification & Power Generation Division>Tokyo Gas Baypower Co., Ltd. (Sodegaura Power Station) [ISO] 2 / Tokyo Gas Yokosuka Power Co., Ltd./ Ohgishima Power Co., Ltd.
<Energy Resources Division>Tokyo LNG Tanker Co., Ltd. [ISO] 2
<IT Division>TG Information Network Co., Ltd.
<Other>Tokyo Gas Engineering Solutions Corporation / Tokyo Gas Communications, Inc. / Tokyo Gas AutoService Co., Ltd. / Tokyo Gas Urban Development Co., Ltd. [ISO] ♯1 / Tokyo Gas Facility Service Co., Ltd.[ISO] ♯2 / Tokyo Gas Site Development Co., Ltd. / Tokyo Gas Chemicals Co., Ltd. / Tokyo Oxygen AndNitrogen Co., Ltd. / Tokyo Carbonic Co., Ltd. / Tokyo Rare Gases Company, Ltd. / Japan Super FreezeCo., Ltd. [ISO] / Niccho Operation Co., Ltd.3 / Park Tower Hotel Co., Ltd. / Nijio Co., Ltd.2 (Total of Tokyo Gas Co., Ltd. and 46 consolidated subsidiaries in Japan)
[ISO] ISO14001:2004 certification
In fiscal 2014, as a result of conducted audit in 49 divisions in accordance with the categories listed in the
internal audit plan, "Non Conformity" was not found in any of those as required by the ISO14001:2004
standard, and the EMS was found to be in effective.
Included in the EMS activities of Capty Co., Ltd.1
Included in the EMS activities of Tokyo Gas Co., Ltd.2
Included in the EMS activities of Japan Super Freeze Co., Ltd.3
The ISO registration scope covers operational activities of the building of Shinjuku Park Tower (excluding the hotel).♯1The ISO registration scope covers the head office and the management division of the Park Tower.♯2
In addition to ISOcompliant EMS, the Group has an EMS program for subsidiaries and affiliates developed by Tokyo Gas, aLIFEVAL EMS program, and EMS programs developed independently by individual group companies.
Result of Internal Audit
Tokyo Gas believes that being actively involved in both regional and global environmental issues is an
important aspect of our corporate management, and we are conducting our business activities as such. We
take our own initiative to research and announce the environmental impact and pollution levels of our
operations in the past, and believe that we must take swift action against any concerns that arise in order to
protect our environment.
We also make efforts to identify potential environmental risks and take appropriate actions to prevent
causing significant environmental harm.
When performing gas pipeline construction work that results in the emission of designated construction
materials (such as asphalt concrete) and has a contract value of at least 5 million yen, we separate,
demolish, and recycle materials further to filing prior notification with the competent authorities in
compliance with the Act on Recycling of ConstructionRelated Materials ("Construction Material Recycling
Act"). However, following the discovery in March 2015 that notifications had not been filed for some work
for which notification was required under the Construction Material Recycling Act, we reported the fact to
the competent authorities in April 2015. Regarding the work for which notification was not filed, we are
further confirming that materials were properly separated, demolished, and recycled.
To prevent a recurrence, we will strengthen training in notification in compliance with the Construction
Material Recycling Act, and bolster arrangements for checking that system improvements have been made.
Since fiscal 1999, we have been conducting soil tests on all land currently or formerly owned by us on
which soil contamination may have occurred, such as the sites of old plants. When contaminants have
been found, we have proactively released the relevant information through a variety of methods, including
reporting the issue to the relevant local authority, informing the media, and explaining the situation to local
residents. The revised Soil Contamination Countermeasures Act came into force in 2010, and we will
continue to abide by the applicable laws and ordinances in a responsible manner. Press releases related to
soil contamination can be viewed under the List of Measures Taken for Soil Remediation on our website.
Tokyo Gas manages chemical substances in accordance with applicable laws and regulations and strivesto reduce emissions of chemical substances.
Conditions of Compliance to Environmental Regulations
Measures Taken for Soil Remediation
Management of Chemical Substances
Response to the PRTR Act
In fiscal 2014, Tokyo Gas handled or otherwise dealt with the following amounts of substances subject toreporting under the PRTR Act.
(Unit: kg)Substance Amount handled Release Transfer Remarks
Xylene 4,338 0.1 0.0 Atmospheric release (from refueling)
1,2,4Trimethylbenzene 2,215 0.0 0.0 Atmospheric release (from refueling)
Toluene 9,431 0.5 0.0 Atmospheric release (from refueling)
Nhexane 2,786 1.0 0.0 Atmospheric release (from refueling)
PCB Measures
Waste owned by Tokyo Gas that contains PCBs is collectively stored at the Negishi LNG Terminal and
other sites, and managed appropriately in accordance with the Act on Special Measures concerning
Promotion of Proper Treatment of PCB Wastes. Items such as high PCBcontaminated high voltage
transformers and capacitors and low PCBcontaminated waste are processed properly in line with
administrative processing schedules and policies. Although the processing period and methods have yet to
be determined, we will appropriately dispose of high PCBcontaminated capacitors of less than 3 kg and
ballast over time.
Disposal of PCB Waste in FY2014
Substance Disposal amount
High PCBcontaminated capacitors 31 units
Low PCBcontaminated high voltage transformers 1 unit
Lowconcentration scrapings 53 drums
The amount of fluorocarbons recovered during procedures such as maintenance of GHP products totaled152.42 kg, and 152.42 kg was destroyed.
VOC Measures
Since 1991, Tokyo Gas has been working on reducing VOCs (volatile organic compounds) emission when
painting items such as gas holders. Recent efforts include the transition to a painting method that uses
weak solventbased paints (low VOC paint method). We will continue to work on further VOCs emission
reduction.
Response to the PRTR Act
Act on Confirmation, etc. of Release Amounts of Specific Chemical Substances in the Environment and Promotion ofImprovements to the Management Thereof
Measures for Fluorocarbons
Amount of Fluorocarbons Recovered and Destroyed (FY2014) (Unit: kg)
Recovered Destroyed
HCFC (Hydrochlorofluorocarbons) 2.0 2.0
HFC (Hydrofluorocarbons) 150.42 150.42
Total 152.42 152.42
Tokyo Gas conducts most of its business in Japan, where abundant freshwater resources are available,
and uses comparatively little water. Therefore, we have not faced manifest risks to business continuity, and
have not previously had a clear policy on water use. As global water shortages have emerged as a serious
issue, however, we are now committed to managing our inputs of freshwater resources as part of our risk
management activities, and will work to conserve freshwater and manage wastewater. Meanwhile, all the
seawater we use to vaporize LNG at the gas production stage is returned to the sea without consumption.
Water resource inputs of Tokyo Gas Group (tap/industrial water)
Paintwork on gas holder
Water Management
We systematically conduct a variety of educational and awarenessraising activities through our
environmental education system and give high priority to training leaders to organize environmental
management and environmental communication activities. As well as providing education to enhance
necessary expertise and gain skills geared to acquiring ISO 14001 certification, we also organized
awarenessraising activities for all Tokyo Gas Group employees to make them more ecoconscious.
We are also emphasizing the intranet as an information channel, providing more content to explain our
measures to combat global warming and reduce waste emissions, along with information on social trends,
legislation, and other topics.
Levelspecific training
Participants in our training for new employees learned in greater depth about the company's environmental
initiatives, and considered what it means to act in an environmentally friendly manner as fullfledged
members of society. Elearning training was also included in our midcareer training.
Awareness raising
We organize a variety of workshops and other events coinciding with Environment Month and similar
occasions to raise environmental awareness among group employees.
In fiscal 2014, we held an environmental seminar during Environment Month in June. Dr. Seita Emori of the
National Institute for Environmental Studies delivered a special lecture on the theme of "Climate Change
Environmental Education and Awareness Raising
Main Environmental Education Programs in FY2014
Programs Date
Ordinary employees: awarenessraising
EcoFamily Program August
EcoDriving Course (elearning) Yearround
EcoDriving Course (behind the wheel)September
October
General environmental basic education for ISOcompliance
April
Environmental workshops and informationsharing via the intranet
Yearround
Environmental personnel: educationto enhance expertise
ISO personnel training May/January
Waste personnel training Yearround
Environmental facility tours October/February
Environmentalrelated law workshop January
EcoCooking instructor training program May/June
Levelspecific training
Training for new employees April/May
Midcareer training August
Training for new managers (wastemanagement, EMS)
May
Risks and Humanity's Options: The Latest Report of the IPCC," and the results of the 11th questionnaire
survey on environmental awareness conducted by the Environmental Affairs Department were also
reported.
Furthermore, as part of our EcoFamily Program for group employees and their families, we have
organized a program on the theme of biodiversity to learn how wildlife and nature relate to our own lives in
association with the Center for Ecological Education, an NPO.
Environmental personnel training
Training for ISO personnel, environmentalrelated law workshops, and education on waste management
were organized to maintain and raise the level of our environmental management. Among other activities,
we arranged "3R facility" tours for environmental personnel from Tokyo Gas and our subsidiaries, affiliates,
and partner companies during 3R Month, as well as tours of cuttingedge environmental and energysaving
facilities at other companies during EnergySaving Month.
Surveys on environmental awareness
We have conducted surveys since 2001 to continuously track the state of environmental awareness among
group employees, the state of ecofriendly practice in the workplace and the home, and the depth of
knowledge about Tokyo Gas's action on the environment.
The results of the fiscal 2014 survey, which drew 10,851 respondents, are helping us to raise employees'
environmental awareness and improve our educational programs.
Rewarding significant environmental contribution activities (Environmental Program PromotionAward)
Launched in fiscal 2009, the Environmental Program Promotion Awards recognize the efforts of
companies, departments, and individuals belonging to the Group or business partners who have
contributed to the Group's action on the environment in four areas: environmental improvement relating to
the Group's business, ecooffice activities, environmental social action programs, and environmental
activities in daily life. (The program's forerunner, the Environment Committee Chairman's Awards, was
established in fiscal 1999.)
Special lecture: "Climate Change Risks andHumanity's Options: The Latest Report of theIPCC" by Dr. Emori
Families in the EcoFamily Program listen forinvasive insect calls
Tokyo Gas Group's Environmental Contribution Award System
In fiscal 2014, awards were presented to 16 out of a total of 34 entrants, with best awards going to two of
the 16. In October, a case study presentation was held at which the 6th Environmental Program Promotion
Awards recipients introduced their awardwinning activities.
Presentation by Kyoshin Giken Co., Ltd. Presentation by Suzuko Gumi Co., Ltd.
As one duty of an energy company, we are working to reduce CO emissions throughout our value chains
to minimize the impact on global warming
Efforts to Prevent Global Warming
As an energy provider, the Tokyo Gas Group recognizes its duty to prioritize action to prevent global
warming. We have therefore established Guidelines for Global Warming Countermeasures that set
concrete numerical targets, and are working as a group to put them into practice. As CO emissions in LNG
value chains are highest at the city gas consumption stage, i.e., customers' sites, we place a strong focus
on curbing emissions at this point and are pursuing a variety of strategies to achieve this. We also survey
the impact on global warming of our raw material procurement activities, and are working with group
companies to deploy highefficiency LNG carriers to reduce emissions from transportation by sea.
2
2
Greenhouse Gas Emissions along the LNG Value Chain
<Link>Environmental Report / Tokyo Gas Group Business Activities and Material Balance
Contribution to Reduction of CO Emissions at Customers' Sites
As our customers' gas use produces far more CO emissions than our own business activities, the Tokyo
Gas Group places a particular focus on reducing CO emissions at customers' sites.
Specifically, we are pursuing a number of strategies to achieve this, including not only encouraging users to
switch from other fuels to natural gas, but also the development and dissemination of highly energy
efficient equipment and systems, the support of renewable energy use, and the development of smart
energy networks. Through the increased use of gas in power generation, we achieved our target by
reducing CO emissions by 3.29 million tons in fiscal 2014, resulting in customer site CO emissions of
29.36 million tons. We also suggest ways our customers can use energy more efficiently in their daily lives
through activities including the provision of "EcoLife" proposals and energy and environmental education
for the next generation.
Switching to natural gas and more advanced useSwitching from other fuels such as oil and LPG to natural gas ("energy conversion") can significantly
reduce CO emissions. In the industrial sector, for example, CO emissions can be halved if energysaving
regenerative burner systems are also adopted at the same time.
Calculated based on emission intensity analyzed following the LCA (lifecycle assessment) approach (see "Tokyo Gas GroupBusiness Activities and Material Balance")
2
2
2
2 2
Reduction of CO Emissions at Customers' Sites2
Reduction due to diffusion of gas cogeneration and natural gasfired power generation was calculated using marginalcoefficients (respectively 0.69 kgCO /kWh (demand side) and 0.65 kgCO /kWh (transmission side)).
2 2
2 2
Diffusion of gas cogeneration systemsAs gas cogeneration systems generate electricity and simultaneously utilize the heat produced exactly
where the power and heat are needed, they help decentralize energy systems and contribute significantly
to the rise of a low carbon society. As of the end of fiscal 2014, gas cogeneration systems supplied via our
pipelines were generating a combined total of 1,907 MW of electricity (excluding residential systems). As
well as being adopted in highload locations, such as factories and commercial facilities where gas
cogeneration has already made headway, systems are now being deployed in a wide range of other fields,
including the residential sector and the low to medium demand commercial sector. We are pushing ahead
with the development of smart energy networks, which combine a core gas cogeneration with maximum
use of renewable energy to optimize energy use at the level of entire communities using ICT (Information
and Communication Technology).
Thermal efficiency of thermal power stations (on a lower heating value basis) and overall loss calculated based on FY2003operating performance of the nine electric power companies and wholesale electricity utilities (Energy Efficiency StandardsSubcommittee, September 2005).
1
Efficiency of gas cogeneration system is on a lower heating value basis.2
"ENEFARM" Residential Fuel Cell Cogeneration System
ENEFARM is a highly energyefficient system that generates
electricity by reacting hydrogen extracted from city gas with oxygen in
the air, while simultaneously capturing the generated heat to heat
water. In April 2014, we launched ENEFARM for home use at housing
complexes for the first time in the world, followed in April 2015 by the
launch of the fourth and newest model in our series for detached
homes. By August 2015, total units sold had reached 50,000, and we
will continue to promote their wider use to help reduce CO emissions
at customers' sites.
Energy Conservation and Reduction of CO Emissions in BusinessActivities
The Tokyo Gas Group delivers diverse energy solutions through not only our city gas business, in which we
drive the spread and expansion of ecofriendly natural gas use, but also in our electric power business,
etc., in which we leverage our strengths in natural gas.
Efforts in city gas productionThe resources used to make city gas have shifted from coal to oil and now to LNG, and energy efficiency at
the time of production has now reached more than 99%. We are working to achieve further energy savings
by, for example, using the cold energy of 162 LNG and promoting more energyefficient operation.
Although energy usage intensity is on the increase due to the rise in gas sendout pressure in line with
growing gas demand leading up to fiscal 2020, energy usage intensity at our city gas production plants was
203 GJ/million m and greenhouse gas emissions came to 216 thousand tons in fiscal 2014. By promoting
energysaving operations and other measures, we have succeeded in achieving our targets.
Efforts in the electric power businessThe Group is contributing to the prevention of global warming by generating electric power using cutting
edge natural gas turbine combined cycle technology1 and installing zero emission wind power plants. In
2
2
3
Energy usage intensity at gas production plants
New ENEFARM model fordetached home use(Model shown is an illustration.Actual installations may differ.)
fiscal 2014, we generated electric power at natural gasfired power stations with a total capacity of
approximately 2,000 MW (1,300 MW of which is owned by the Group) and wind power plants with a
capacity of 1,990 kW. We are also planning to start operation of Unit 3 (planned maximum efficiency of
58%2 and generation capacity of approximately 400 MW) at the natural gasfired Ohgishima Power
Station in March 2016. In addition to the electric power we generate ourselves, we also buy electric power
from outside the Group. Overall, our electric power business in fiscal 2014 had a 2 emission factor of
0.359. We have helped reduce our overall CO emissions by replacing some existing thermal power
generation capacity.
Promoting Widespread Use of Power Generation from Renewable Energy
Following on the Sodegaura Wind Power Plant at our
Sodegaura LNG Terminal, the Tokyo Gas Group has
since 2011 had a 30.2% stake in Shonai WindPower
Generation Co, Ltd., which operates facilities such as
the Yuza Wind Power Plant in Yamagata Prefecture
and has a total power generating capacity of 15.91 MW.
In January 2015 we also signed an agreement with
Kuroshio Furyoku Hatsuden K.K. to buy generated
electric power. Under this agreement, we buy a total of
approximately 12 MW of electric power generated at the Choshi Takadacho Wind Power Plant and
the Shiishiba Wind Power Plant operated by Kuroshio Furyoku Hatsuden in the Kanto region.
We have also bought green power certificates for wind power from Japan Natural Energy Co., Ltd.
since fiscal 2002. In fiscal 2014, 955 MWh of electric power was allocated as green power to our
corporate museums, offices, and other facilities.
CO
2
A highly efficient means of generating electricity by a combination of two methods: first gas is combusted to drive a gasturbine, then the hightemperature exhaust gas is used to convert water to steam to drive a steam turbine.
1
On a lower heating value basis at the generation end.2
CO emission factors in the electric power business2
The average CO emission factor for all transmitted wholesale power, including businessuse power purchased from othercompanies and the market as well as the Group's own power stations.
2
Yuza Wind Power Plant
Efforts in the district heating and cooling businessThe Tokyo Gas Group operates district heating and cooling business (including smallscale heat supply
centers) in 42 districts. Steam and heated and chilled water are produced by various natural gas systems,
including cogeneration systems, absorption chillers, and boilers. We supply this steam and heated and
chilled water within a specific area, contributing to improving areawide energy efficiency. In fiscal 2014,
facility upgrades resulted in a heat sales intensity of 1.34 GJ/GJ, enabling us to achieve our target.
Efforts at business officesAt Tokyo Gas's business offices and other facilities, we have been implementing a range of hardware
related measures, including the installation of cogeneration systems and energysaving equipment, and
equipment upgrades including improved lighting, air conditioners, and other hardware to enhance
efficiency. In addition, we are conducting highly effective energysaving activities, including adjusting the
inflow of outside air according to CO concentrations and more energyefficient control of lighting, humidity,
and temperature. We are also working to facilitate the tracking of energy usage at a glance by the use of
"TG Green Monitors" and displays that show actual electricity use, thus raising employee awareness of
energy conservation. Energy usage at our business offices and other facilities came in on target at 896 TJ
in fiscal 2014, due in part to lower summer temperatures but also to this installation of energysaving
equipment and powersaving measures.
Heat sales intensity at district heating and cooling centers
Fiscal 2013 results have been revised to reflect improvements in calculation accuracy.
2
Energy usage at business offices, etc.
Forest Preservation and Greenification Activities
Tokyo Gas has been contributing to preventing global warming through treeplanting and forest
preservation activities since 2005, when it opened the 194hectare Nagano Tokyo Gas Forest in Kitasaku
gun, Nagano Prefecture. The forest celebrates its tenth anniversary in 2015, and we will continue to work
with NPOs and local residents to preserve it and contribute to the achievement of a sustainable society. We
are also supporting the preservation and enhancement of precious green space within the Group's service
area through the Tokyo Gas Tree Planting Project initiated in fiscal 2013.
Tokyo Gas's vision for forest development
Nagano Tokyo Gas Forest's Tenth Anniversary
Nagano Tokyo Gas Forest celebrated its tenth anniversary in July
2015, when a ceremony was held to mark the occasion. In the 10
years since its inception, some 300,000 saplings have been planted
and 40,000 thinned out to promote growth. As a result, a once
gloomy, impenetrable forest covered in dense undergrowth has been
transformed into a sunny, vibrant environment that allows trees to
grow rapidly and offers a good home for flora and fauna. Some
4,000 people have visited the forest, attracted by activities like the
Donguri (Acorn) Project that give them an opportunity to learn about
the value of the environment through direct experience of the outdoors.
Tenth anniversary tree planting
We are contributing to creating a "resourcesaving society" through a broad range of activities, including
promotion of the 3Rs to deal with waste and excavated soil generated in the course of our business
activities, appropriate use of water resources, and recycling of used gas appliances disposed of by our
customers.
Practicing the 3Rs (reduce, reuse, and recycle) is essential to creating a resourcesaving society. The most
important of these is controlling the generation of waste.
We have achieved dramatic reductions in the amount of waste and byproducts we generate through such
strategies as the adoption of LNG as raw material to make city gas and promoting the shallowerlaying of
pipes and nonopencut construction methods when laying gas pipelines. At the same time, we continue to
pursue the 3Rs in all aspects of our business activities. In fiscal 2014 the Group produced 133,650 tons of
waste in total (and achieved a recycling rate of 95.5%), 6% more than a year earlier. We will promote
initiatives to help further improve our recycling by, for example, reviewing our contracts with landfill disposal
contractors.
Waste
The Tokyo Gas Group is pursuing measures to achieve zero emissions at all of its facilities, including
power stations, gas appliance manufacturing factories, and district heating and cooling service centers as
well as the LNG terminals where city gas is produced. In fiscal 2014, we made efforts for recycling by
revising the definition of "zero emission" downward from a final disposal rate of under 1% to a rate of under
0.1%, but the actual rate achieved was 1.2%. We will be stepping up our efforts to achieve further
reductions of final disposal rate.
Promotion of the 3Rs to Minimize Waste, etc.
Efforts to achieve zero emissions at production plants
Promoting the 3Rs for excavated soils
Used PE pipes after collection Intelligent gas meter
Roads are dug up when gas pipelines are laid, producing excavated soil (i.e., residual soil) and lumps of
asphalt concrete. The Group promotes the 3Rs to decrease the amount of excavated soil through the use
of shallowlaying of pipes in narrow trenches and nonopencut construction methods, as well as by
reburying excavated soil and increasing the use of improved soil and recycled road surface materials.
Although we reduced the disposal amount to 16.7% in fiscal 2014, we remained 0.7% off our target. We will
continue to work to produce less excavated soil by continuing efforts to encourage authorities who have not
yet approved the reburying of generated soil and the use of improved soil, as well as reducing the amount
of excavated soil overall.
Excavated soil
We have worked to increase recycling of used gas pipes removed when pipes are replaced, enabling us to
once again achieve a 100% recycling rate in fiscal 2014. We established a system for recycling
polyethylene (PE) pipe scrap and excavated sections of PE pipes in fiscal 1994, and in fiscal 2014 recycled
a total of 228 tons. The recycled material is used to make the instruction cards on how to restart intelligent
gas meters installed at customers' sites. Regarding steel and castiron pipes, we collected a total of 4,670
tons in fiscal 2014. These are 100% recycled as raw material used by electric furnace manufacturers and
other users.
Meters are replaced before their certification life (normally 10 years) expires. We collect the meters that
have been removed, replace all expendable parts, and recertify them, allowing them to be used for three
cycles (30 years in total). In fiscal 2014, 675 thousand (53%) of the 1,275 thousand of our newly installed
meters were reused, enabling us to reduce generated waste by 2,809 tons. Meters that have completed
three cycles are recycled through our own recycling route and used as material for new products by electric
furnace manufacturers, etc.
Promoting the 3Rs for excavated soils
Recycling of used gas pipes and gas meters
Since 1994, Tokyo Gas has operated its own waste collection and recycling system, called Saving &
Recycling Innovative Model System (SRIMS). This system enables us to reduce the impact on the
environment and cut costs by collecting waste at the same time we deliver gas appliances, parts, and
piping materials to partner companies. Under SRIMS, we are working to collect used gas appliances and
waste materials produced when equipment is replaced or gas installation or renovation work is carried out
at customers' sites. In fiscal 2014, we collected 8,991 tons of waste and recycled 8,330 tons (92.7%).
How SRIMS works
Appropriate Water Use
Tokyo Gas conducts most of its business in Japan, where abundant freshwater resources are available,
and uses comparatively little water. Therefore, we have not faced manifest risks to business continuity, and
have not previously had a clear policy on water use. As global water shortages have emerged as a serious
issue, however, we are now committed to managing our inputs of freshwater resources as part of our risk
management activities, and will work to conserve freshwater and manage wastewater. Meanwhile, all the
seawater we use to vaporize LNG at the gas production stage is returned to the sea without consumption.
Recycling of used gas appliances
Water resource inputs of Tokyo Gas Group (tap/industrial water)
We check that proper consideration is given to
biodiversity conservation in the development of the gas
fields that supply our resources. We also manage use of
ballast water to mitigate the risk posed by invasive
species during transportation of LNG by carriers owned
or managed by us.
Working with NPOs, we survey the birds, insects,
plants, and other wildlife inhabiting our LNG terminals
and use the findings to assist our treeplanting and
conservation work.
When laying gas pipes, we reduce the impact on
ecosystems caused by excavation of pit sand by
reducing the amount of excavated soil, reburying of
excavated soil, and increasing the use of improved soil
and recycled road surface materials.
Alongside reducing the impact of our business activities on ecosystems, we will work with local
communities, NPOs, and other entities to conserve biodiversity.
Activities to Conserve Biodiversity
Many species are facing imminent extinction due to human activities, and the balance of natural
ecosystems around the world is collapsing at an alarming rate. The Tokyo Gas Group considers the
realization of rich ecosystems to be one of our important business bases in order to protect the global
environment while sustaining our business, and has formulated its Guidelines for Promoting Biodiversity
Conservation. Specifically, we monitor impacts along each value chain to mitigate the impacts on
ecosystems, pursue forest conservation activities at our own Nagano Tokyo Gas Forest, and engage in a
variety of other initiatives. These include support for organizations involved in biodiversity conservation
through the Tokyo Gas Environment Support Fund, and our participation in the Keidanren Committee on
Nature Conservation.
Key activities along the value chain
We are involved in growing greenery on roofs and
creating green curtains, and use them as effective
means of communication with local communities and
customers.
We are working with our customers on a variety of
initiatives, such as the "Watashi no Mori Project" ("My
Forest") to develop mini forests in housing complexes
where customers live.
As a total energy company, we will promote the development of innovative environmental technologies to
help ameliorate global environmental issues.
Development of Hydrogen Technologies
In order to contribute to the development of a hydrogen supply infrastructure to support the widespread use
of fuel cell vehicles, Tokyo Gas has built and operates hydrogen stations in two locations as demonstration
projects. These are the Senju Hydrogen Station, the capital's first stationary hydrogen refueling station, and
the Haneda Hydrogen Station, the first station in Japan to combine both natural gas and hydrogen refueling
facilities. In fiscal 2014, the Nerima Hydrogen Station opened, making it the first commercial hydrogen
station in the Kanto region. To cut the cost of hydrogen station construction, we have developed an
operating method that dramatically reduces the number of storage tanks. This will be incorporated into the
design of the Urawa Hydrogen Station, the second station in this series. We are also working to develop
international standards for hydrogen refueling methods and hydrogen quality, measurement, and other
technologies for commercial hydrogen refueling stations.
Operation of Ordinary Commercial Hydrogen Station Launched
On December 18, 2014, having been selected for
special funding under the Ministry of Economy, Trade
and Industry's "Hydrogen Supply Facility Development
Project Subsidy" program, we opened the Nerima
Hydrogen Station, the first commercial hydrogen
refueling station in the Kanto region. This station uses
an "offsite system" for receiving hydrogen produced
elsewhere and supplying it to fuel cell vehicles onsite. Hydrogen station and Toyota MotorCorporation's FCV "MIRAI"
To promote smarter energy use in everyday life, we built an
employee dormitory in Isogoku, Yokohama, that makes
maximum use of renewable energy and distributed energy
systems, and conducted demonstration tests there for three
years from April 2012 to March 2015. The project achieved an
approximately 30% reduction in energy consumption and a 38%
reduction in CO emissions overall thanks to the installation and
efficient use of ENEFARMs and other equipment. We also
achieved a 7% energy saving in residentoccupied areas as a
result of changes in resident behavior brought about by
installation of a Home Energy Management System (HEMS). In
addition, peak load was cut by 58% in summer and 49% in
winter as a result of demand response.
We will be conducting three years of further tests and
technology development work on smart meters, the installation
of which will commence in 2018, with a view to eventually
installing them in all homes in our service area. Our aim is to
improve userfriendliness through twoway communication and
deliver more individualized energy solutions using data
monitoring and customer feedback.
Isogo Smart House Demonstration Project24unit Tokyo Gas employee dormitorycomprising 4 stories aboveground and abasement
Smart meter
To add to the ways we have developed to date to increase the
use of renewable energy sources, such as mixed combustion of
city gas and biogas, we are working on technologies to
generate biogas from food biomass and other resources
economically and efficiently using methane fermentation, and
developing technologies for removing impurities in biogas such
as carbon dioxide. In fiscal 2014, we received 775 thousand m
of biogas derived from food waste into our city gas pipelines
after it had been upgraded, adjusted to the appropriate calorific
value, and odorized like city gas (equivalent to an
approximately 1,300ton reduction in CO emissions). fed into
city gas pipelines. In addition, we have been engaged in joint
research with the City of Yokohama since fiscal 2013 with the
goal of broadening the use of biogas generated at the City's
Hokubu Sewerage Center. R&D is being conducted on ways to
remove carbon dioxide from sewage biogas using separation
membranes to produce highly concentrated methane. We are
also studying applications to use it in highefficiency power
generators such as solid oxide fuel cell (SOFC) systems.
Membrane biogas refining system
Making Life Smarter
Effective Use of Biomass
2
3
2
We monitor and manage impacts on the environment at every stage of our LNG value chain in order toreduce the impact on the environment.
Tokyo Gas Group Business Activities and Material Balance
Companies included in the data: Tokyo Gas and its 49 consolidated subsidiaries in Japan.
For city gas production by Tokyo Gas Group.1
Energy usage by Tokyo Gas Group excluding doublecounting due to intragroup supply of heat and electricity.2
City gas: Volume of gas sales by Tokyo Gas Group excluding supply to other gas utilities.Wholesale supply: Volume of gas supplied to other gas utilities.Heat: Includes sales from LNG terminals as well as district heating and cooling center and spot heat supply. Includes intra
3
Tokyo Gas Group Business Activities and Material Balance (PDF:211KB)
group supply. Electric power: Volume of sales of all electric power, including power purchased for business use from other companies and
the market as well as Group power stations.
CO , CH , NOx: Excludes doublecounting due to intragroup supply.Volume of wastewater: Specified wastewater and domestic sewage.
4 2 4
PE pipes, Steel and castiron pipes: Tokyo Gas on a nonconsolidated basis.5
Gas sales volume according to consolidated financial statements multiplied by emission intensity.6
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Number of Customers (Note)
thousands 10,739 10,855 10,978 11,111 11,263
Number of ConsolidatedSubsidiaries
companies54 53 51 51 49
Feedstock and Production
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
City gasfeedstock (Note 1)
FeedstockLNG
thousandtons
10,193 10,531 10,760 11,057 11,513
FeedstockLPG
thousandtons
327 321 368 418 441
Production City gassales (Note 2)
millionm 13,765 14,160 14,211 14,527 15,358
Heat sales(Note 3)
TJ 3,771 3,282 3,282 3,353 3,287
Powersales (Note 4)
billionkWh 7.04 8.27 9.98 9.71 10.61
Companies included in the data (Tokyo Gas and ConsolidatedSubsidiaries) Companies included in the data.(PDF:24KB)
Number of customers of Tokyo Gas and its consolidated subsidiaries in Japan.Note:
Usage of Energy & Water / Emissions into the Atmosphere & WaterSystems
3
Energy Usage 1,2
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Energyusage
(Note 1) TJ 52,731 56,245 62,565 60,457 66,399
LNG terminals TJ 3,724 3,789 3,818 3,894 4,069
District heatingand coolingcenters
TJ5,170 4,559 4,513 4,361 4,167
Power plants TJ 40,933 45,289 51,745 49,733 55,639
Tokyo Gasbusiness offices,etc.
TJ1,588 1,494 1,469 1,453 1,417
Other groupcompanies
TJ1,775 1,681 1,536 1,541 1,490
(Tokyo Gas nonconsolidated)
TJ5,725 5,588 5,586 5,638 5,785
Electricpower (Note 2)
MWh 575,752 543,186 542,724 545,218 593,097
LNG terminals MWh 286,329 289,115 298,742 304,788 334,229
District heatingand coolingcenters
MWh88,632 72,585 76,975 76,446 90,973
Power plants MWh 11,181 16,055 13,263 10,732 8,774
Tokyo Gasbusiness offices,etc.
MWh65,995 55,405 55,022 54,499 52,350
Other groupcompanies
MWh138,603 131,163 118,785 118,673 115,677
(Tokyo Gas nonconsolidated)
MWh359,810 350,876 359,707 364,971 391,536
City gas thousandm3
1,087,174 1,177,796 1,324,428 1,275,444 1,402,022
LNG terminals thousandm
21,620 22,496 20,978 21,378 18,769
For city gas production by Tokyo Gas Group.Note 1:
Volume of gas sales by Tokyo Gas Group including supply to other gas utilities.Note 2:
Includes sales volume from LNG terminals, in addition to district heating and cooling center and spot heat supply. Alsoincludes intragroup supply.
Note 3:
Volume of sales of all electric power, including power purchased for business use from other companies and the marketas well as Group power stations.
Note 4:
3
District heatingand coolingcenters
thousandm3 98,567 87,713 85,647 82,570 74,482
Power plants thousandm3
946,045 1,047,873 1,198,427 1,152,267 1,289,852
Tokyo Gasbusiness offices,etc.
thousandm3 18,891 17,699 17,149 16,900 16,726
Other groupcompanies
thousandm3
2,052 2,015 2,228 2,328 2,192
(Tokyo Gas nonconsolidated)
thousandm3
46,246 45,630 43,542 43,837 40,994
Heat (Note 2)
TJ 29 25 24 31 38
District heatingand coolingcenters
TJ92 105 104 176 203
Tokyo Gasbusiness offices,etc.
TJ94 86 88 89 85
Other groupcompanies
TJ226 205 165 167 158
(Tokyo Gas nonconsolidated)
TJ113 102 102 99 94
Otherfuels
kL 136 126 119 139 135
LNG terminals kL 7 4 5 5 6
Tokyo Gasbusiness offices,etc.
kL25 17 7 16 16
Other groupcompanies
kL104 105 107 118 113
(Tokyo Gas nonconsolidated)
kL32 21 12 21 22
Fuel forvehicles
Gasoline kL 3,360 3,449 3,634 3,571 3,282
(Tokyo Gas nonconsolidated)
kL1,517 1,465 1,494 1,461 1,425
Diesel oil kL 232 206 243 228 219
(Tokyo Gas nonconsolidated)
kL36 35 36 37 35
City gas thousandm3
292 297 237 218 203
(Tokyo Gas nonconsolidated)
thousandm3
247 257 201 185 172
LPG kL 341 273 274 295 280
(Tokyo Gas nonconsolidated)
kL― ― ― ― ―
LNGcryogenicenergy
thousandtons
1,991 2,504 2,487 2,659 2,289
Cryogenic powergeneration
thousandtons
525 816 696 796 460
Portion sent tosubsidiaries andaffiliates
thousandtons 839 769 818 821 853
BOG treatment,etc.
thousandtons
627 918 973 1,042 976
Water Usage
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Tap waterandindustrialwater
thousandm3
5,700 5,273 5,647 6,023 5,751
LNG terminals thousandm3
1,480 1,271 1,460 1,542 1,662
District heatingand coolingcenters
thousandm3 1,995 1,628 1,711 1,597 1,439
Power plants thousandm3
1,243 1,437 1,504 1,890 1,703
Tokyo Gasbusinessoffices, etc.
thousandm3 603 554 595 607 572
Other groupcompanies
thousandm3
379 383 376 387 375
(Tokyo Gasnonconsolidated)
thousandm3 2,138 1,880 2,111 2,192 2,276
Seawater LNG terminals thousandm3
701,643 765,369 791,092 795,227 784,406
Excludes double counting by intragroup supply of heat and electricity.Note 1:
Excludes double counting by intragroup supply.Note 2:
Emissions into the Atmosphere
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Greenhousegas
CO2
1,3
(Note 1) thousandtons ofCO2
2,616 2,795 3,154 3,074 3,376
LNGterminals (Note 2)
thousandtons ofCO2
160 160 180 200 210
Districtheating andcoolingcenters (Note 3)
thousandtons ofCO2 250 231 225 223 213
Power plants (Note 4)
thousandtons ofCO2
2,078 2,297 2,627 2,522 2,823
Tokyo Gasbusinessoffices, etc. (Note 5)
thousandtons ofCO2
81 71 72 75 73
Other groupcompanies (Note 6)
thousandtons ofCO2
80 75 76 81 77
(Tokyo Gasnonconsolidated)(Note 7)
thousandtons ofCO2
257 246 268 290 298
CH4 (Note 8) thousandtons ofCO2
equivalent
7 3 3 4 6
NOx tons 310 290 264 272 272
LNGterminals (Note 9)
tons14 13 12 14 14
Districtheating andcoolingcenters
tons 69 61 62 59 53
Power plants tons 205 200 175 182 187
Tokyo Gasbusinessoffices, etc. (Note 9)
tons
22 16 16 17 18
(Tokyo Gasnonconsolidated)
tons37 30 29 32 32
Emissions into Water Systems
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Wastewater thousandm3
1,147 1,187 1,154 1,106 1,116
LNG terminals (Note 1)
thousandm3
379 372 274 242 265
District heatingand coolingcenters
thousandm3 394 361 398 321 325
Power plants thousandm3
374 454 483 544 525
(Tokyo Gasnonconsolidated)
thousandm 389 381 284 249 273
COD tons 1.6 1.7 1.7 1.9 1.9
LNG terminals tons 1.4 1.3 1.4 1.2 1.2
Power plants tons 0.2 0.3 0.3 0.6 0.6
Excludes double counting by intragroup supply. Totaling 3,381 thousand tons (based on adjusted emission factors) forthe Tokyo Gas Group overall. Breakdown: CO emissions for SCOPE 1 total 3,077 thousand tons; CO emissions for SCOPE 2 total 305 thousandtons
Note 1:
2 2
215 (based on adjusted emission factors)Note 2:
212 (based on adjusted emission factors)Note 3:
2,823 (based on adjusted emission factors)Note 4:
73 (based on adjusted emission factors)Note 5:
77 (based on adjusted emission factors)Note 6:
304 (based on adjusted emission factors)Note 7:
About 275 tons of CH emissionsNote 8: 4
Emissions from facilities that generate soot and smoke specified in the Air Pollution Control Act.Note 9:
3
(Tokyo Gasnonconsolidated)
tons1.4 1.3 1.4 1.2 1.2
Greenhouse Gas Emissions from Feedstock Procurement
Category Unit FY2012 FY2013 FY2014
LNG procured million tons 12.71 12.80 13.97
Greenhouse gas (CO2
equivalent) (Note)Extraction million tons of
CO20.56 0.57 0.62
Liquefaction million tons ofCO2
5.80 5.84 6.38
Marinetransport
million tons ofCO2
1.37 1.38 1.50
CO2 Emissions and Emissions Reduction at Customers´ Sites
Category Unit FY2005 FY2011 FY2012 FY2013 FY2014
CO2 Total amount million tons ofCO2
25.80 26.94 27.09 27.67 29.36
Amount ofreduction relative toFY2005 (Note)
million tons ofCO2
Base 1.28 − − −
Amount ofreduction relative toFY2011 (Note)
million tons ofCO2
− Base 0.87 1.52 3.29
Data on wastewater consists of specified effluent and domestic wastewater.Note:
Calculated based on greenhouse gas emission intensity throughout the lifecycle from natural gas extraction to processingand transport, which was analyzed with an LCA method, where emission intensity is 0.81 for extraction, 8.36 forliquefaction, and 1.97 gCO /MJ (in gross calorific value) for marine transport.
Note:
2
Results from fiscal 2011 represent the amount of reduction based on results from fiscal 2005. Upon review of theGuidelines, results from fiscal 2012 onward are based on results from fiscal 2011.
Note:
Energy Usage for Cargo Transportation (for Tokyo Gas on a nonconsolidated basis)
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Transportation amount million tonskm
78.77 82.91 81.32 93.12 94.59
Energy usage (crude oilequivalent)
kL3,028 3,172 3,109 3,258 3,275
Energy usage intensity kl/milliontonskm
38.4 38.3 38.2 35.0 34.6
Conversion Factor, etc.
CO2 Emission Factor
Category Unit FY 2010
FY 2011
FY 2012
FY 2013
FY 2014
City gas (Tokyo Gas 13A) (Note 1)
kgCO2/m3
2.21
Purchased electricity (average of all powersources) (Note 2)
kgCO2/kWh 0.384 etc.
0.464etc.
0.525etc.
0.530etc.
Heat (Note 3)
Steam (excluding industrial use),hot water, cold water
kgCO2/MJ
0.057
Industrial steam kgCO2/MJ
0.060
Other fuels (Note 3)
Heavy oil A kgCO2/L 2.71
Diesel kgCO2/L 2.58
Kerosene kgCO2/L 2.49
Gasoline kgCO2/L 2.32
LPG kgCO2/kg
3.00
Unit Calorific Value
Category Unit FY 2010
FY 2011
FY 2012
FY 2013
FY 2014
City gas (Tokyo Gas 13A) (Note 1)
MJ/m3N 45.00
Purchasedelectricity (Note 2) 4
Daytime electricity MJ/kWh 9.97
Nighttime electricity MJ/kWh 9.28
Other than general electricityutilities
MJ/kWh9.76
Heat (Note 2)
Steam (excluding industrial use),hot water, cold water
MJ/MJ1.36
Industrial steam MJ/MJ 1.02
Amount of CO emissions from cargo transportation in fiscal 2014 totaled 8,615 tons.Note: 2
Calculated based on the typical composition of city gas (type 13A) supplied by Tokyo Gas (15°C, gauge pressure of 2kPa).
Note 1:
Emission factors from electric power companies, released in accordance with the ministerial ordinance stipulated by theAct on Promotion of Global Warming Countermeasures.
Note 2:
Calculated using the unit calorific value released in accordance with the ministerial ordinance stipulated by the Act onPromotion of Global Warming Countermeasures, and multiplying this amount by the emission factor per unit calorificvalue and by 44/12.
Note 3:
Other fuels (Note 2)
Heavy oil A MJ/L 39.1
Diesel MJ/L 37.7
Kerosene MJ/L 36.7
Gasoline MJ/L 34.6
LPG MJ/kg 50.8
Crude oil equivalent coefficient (Note 2)
kL/GJ 0.0258
City gas calorific value of Tokyo Gas (0°C, 1 atmospheric pressure)Note 1:Act Concerning the Rational Use of Energy (the Energy Efficiency Act)Note 2:
For district heating and cooling centers that sell power using Combined Heat and Power (cogeneration), the amount ofenergy usage is divided between those for heat production and those for power generation using the allocation factorcalculated based on the Act on Promotion of Global Warming Countermeasures. Data for energy used to produce heat isreflected in "District heating and cooling centers," and data for energy used for power generation is reflected in "Powerplants." Data for "Tokyo Gas business offices, etc." does not include energy used for LNG terminals and district heating andcooling centers. "Other group companies" refers to data on group companies excluding district heating and cooling centers,and power plants.
1
Some variance in the data listed under different categories may exist since the data has been processed to properly assessthe changes in energy usage intensity for each business activity (such as by reflecting the amounts commissioned by othercompanies at LNG terminals).
2
CH (methane) emissions were converted to CO emissions by multiplying by the global warming potential of 21, asstipulated in the Act on Promotion of Global Warming Countermeasures.
3 4 2
For the crude oil equivalent of electricity usage under "District heating and cooling centers" and "Tokyo Gas businessoffices, etc.," the amounts purchased from power utility companies were all calculated using daytime electricity factors.
4
Industrial Waste 1
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Industrial waste2 Generation tons 131,568 118,733 117,832 122,705 130,193
Amountrecycled
tons128,594 116,478 114,994 119,039 124,975
Finaldisposal
tons1,580 1,167 1,956 2,450 3,714
Recyclingrate
%98 98 98 97 96
Finaldisposalrate
%1 1 2 2 3
Productionplants (group)
Generation tons 1,371 1,213 1,254 1,476 1,330
Amountrecycled
tons1,297 958 1,089 1,062 925
Finaldisposal
tons11 1 0 2 16
Recyclingrate
%95 79 87 72 70
Finaldisposalrate
%1 0 0 0 1
Constructionwork 2 (group)
Generation tons 127,209 114,060 113,451 118,111 125,816
Amountrecycled
tons124,843 112,543 111,160 115,303 121,455
Finaldisposal
tons1,396 1,016 1,820 2,258 3,472
Recyclingrate
%98 99 98 98 97
Finaldisposalrate
%1 1 2 2 3
Businessoffices, etc.(group)
Generation tons 2,988 3,460 3,128 3,118 3,046
Amountrecycled
tons2,454 2,976 2,746 2,674 2,595
Finaldisposal
tons172 149 136 190 226
Recyclingrate
% 82 86 88 86 85
Finaldisposalrate
%6 4 4 6 7
Tokyo Gasnonconsolidated
Generation tons 3,924 4,413 3,903 4,137 4,430
Amountrecycled
tons3,514 4,074 3,531 3,647 3,719
Finaldisposal
tons140 102 117 194 360
Recyclingrate
%90 92 90 88 84
Finaldisposalrate
%4 2 3 5 8
Results by Major Sites (FY2014)
Major LNG terminals (Negishi, Sodegaura, Ohgishima)
Category Generation (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Sludge 126.5 3.9 0.0 3.1 0.0
Scrap metal 11.1 11.1 0.0 100.0 0.0
Waste oil 6.9 6.8 0.0 97.8 0.1
Waste plastics 7.9 7.1 0.0 90.5 0.3
Speciallycontrolled industrialwaste
6.7 2.8 0.0 40.8 0.0
Other 4.6 1.8 0.0 39.0 0.5
Total 163.7 33.5 0.0 20.4 0.0
Gastar Co., Ltd. (gas appliance manufacturer)
Category Generation (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Scrap metal 675.8 675.8 0.0 100.0 0.0
Sludge 58.6 58.6 0.0 100.0 0.0
Waste plastics 32.4 32.4 0.0 100.0 0.0
Waste oil 29.7 29.7 0.0 100.0 0.0
Total 796.5 796.5 0.0 100.0 0.0
Data for "Production plants" includes that from business offices that produce city gas and other products, district heating andcooling centers, and power plants. Data for "Construction work" is for construction taken on by group companies as originalcontractors. Data for "Business offices, etc." includes all data other than that from "Production plants" and "Constructionwork."
1
Including construction work for customers of our subsidiaries and affiliates.2
District Heating and Cooling Centers
Category Generation (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Sludge 9.8 9.5 0.0 97.1 0.3
Scrap metal 36.8 36.8 0.0 100.0 0.0
Waste oil 2.4 2.2 0.1 90.0 4.4
Waste plastics 11.9 11.9 0.0 100.0 0.0
Other 4.1 4.1 0.0 100.0 0.0
Total 65.1 64.6 0.1 99.2 0.2
Waste from Construction Work
Category Generation (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Debris 111,461 111,177 284 99.7 0.3
Sludge 4,710 3,187 776 67.7 16.5
Scrap metal 2,241 2,231 2 99.6 0.1
Wood chips 1,698 1,686 10 99.3 0.6
Waste plastics 1,542 1,213 243 78.7 15.7
Glass, concrete, ceramic waste 1,631 1,220 403 74.8 24.7
Paper waste 320 288 17 90.0 5.3
Other 2,214 453 1,738 20.5 78.5
Total 125,816 121,455 3,472 96.5 2.8
Business Offices, etc.
Category Generation (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Scrap metal 769 734 33 95.5 4.3
Waste plastics 894 813 78 91.0 8.7
Waste oil 288 281 2 97.8 0.6
Sludge 407 140 57 34.3 14.0
Glass, concrete, ceramic waste 152 135 16 89.3 10.6
Debris 54 53 1 97.5 2.5
Other 483 438 39 90.8 8.2
Total 3,046 2,595 226 85.2 7.4
General Waste
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
GeneralWaste
Generation tons 3,498 3,335 3,407 3,645 3,457
Amountrecycled
tons2,497 2,473 2,489 2,755 2,725
Recyclingrate
%71 74 73 76 79
Tokyo Gasnonconsolidated
Generation tons 1,211 1,147 1,213 1,154 1,132
Amountrecycled
tons1,004 943 1,020 977 967
Recyclingrate
%83 82 84 85 85
Paperwaste
Generation tons 2,195 2,134 2,199 2,329 2,299
Amountrecycled
tons2,010 1,974 2,060 2,220 2,194
Recyclingrate
%92 93 94 95 95
Tokyo Gasnonconsolidated
Generation tons 926 856 920 863 882
Amountrecycled
tons869 801 876 821 830
Recyclingrate
%94 94 95 95 94
ByProducts from Gas Pipe Construction Work
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Gas pipe (Note 1)
PE pipe Amountrecovered
tons178 219 250 231 228
Amountrecycled
tons178 219 250 231 228
Recyclingrate
%100 100 100 100 100
Steelandcastironpipe
Amountrecoveredandrecycled
tons
4,240 3,864 3,711 3,995 4,670
Recyclingrate
%100 100 100 100 100
Excavatedsoil (Note 2)
Pipe extension work km 1,092 1,027 1,183 1,160 1,170
Estimated excavatedamount
milliontons
3.31 3.33 3.59 3.57 3.71
Actualreducedamount
Reduction(byshallowerlaying ofpipes innarrowtrenchesand nonopencutmethod)
milliontons
1.41 1.36 1.40 1.43 1.42
Reuse(generatedsoil)
milliontons 0.44 0.43 0.47 0.49 0.52
Recycle(improvedsoil,regenerationtreatment)
milliontons
0.98 1.04 1.10 1.10 1.15
Totalreductionamount
milliontons 2.82 2.83 2.98 3.02 3.09
Residual soil (actualamount)
milliontons
0.49 0.50 0.61 0.55 0.62
Rate of residual soil(comparison toestimated excavatedamount)
%
15 15 17 16 17
Tokyo Gasnonconsolidated(Note 2)
Pipe extension work km 983 931 1,064 1,064 1,065
Estimated excavatedamount
milliontons
3.06 3.11 3.32 3.33 3.47
Actualreducedamount
Reduction(byshallowerlaying ofpipes innarrowtrenchesand nonopencutmethod)
milliontons
1.33 1.28 1.34 1.36 1.35
Reuse(generatedsoil)
milliontons 0.38 0.39 0.41 0.45 0.47
Recycle(improvedsoil,regenerationtreatment)
milliontons
0.96 1.02 1.08 1.07 1.12
Totalreductionamount
milliontons 2.67 2.69 2.83 2.89 2.94
Residual soil (actualamount)
milliontons
0.39 0.41 0.49 0.45 0.52
Rate of residual soil(comparison toestimated excavatedamount)
%
13 13 15 13 15
Tokyo Gas nonconsolidatedNote 1:
Recovery from Our Customers
Category Unit FY2010 FY2011 FY2012 FY2013 FY2014
Waste,etc.
Subject toHomeApplianceRecyclingLaw
Home airconditioningunits
Units recovered units 29,259 21,594 20,045 22,009 15,901
Units sent toprocessing plants
units29,302 21,611 20,041 21,892 16,061
Units disposed ofbyremerchandising,etc.
units
28,341 22,471 19,764 19,962 17,882
Weight disposedof byremerchandising,etc.
tons
1,200 959 829 836 748
Remerchandisedweight
tons1,017 827 732 740 670
Remerchandisingrate
%84 86 88 88 89
Fluorocarbons Recoveredweight
kg17,316 13,180 12,718 13,036 10,837
Clothes dryers Units recovered units 5,461 5,591 5,604 6,873 6,193
Units sent toprocessing plants
units5,464 5,579 5,607 6,820 6,259
Units disposed ofbyremerchandising,etc.
units
5,495 5,569 5,390 6,671 6,573
Weight disposedof byremerchandising,etc.
tons
190 198 193 247 249
Remerchandisedweight
tons156 164 158 209 211
Remerchandisingrate
%81 82 81 84 85
SRIMS recovery amount (Note)
Used gasappliances, etc.
tons3,916 4,136 4,423 4,345 3,933
Other tons 3,442 3,399 3,804 4,343 5,057
Total tons 7,357 7,535 8,227 8,687 8,991
Data for excavated soil and asphalt concrete. Includes related city gas companies.Note 2:
Excludes waste from specified kinds of home appliances.Note:
SRIMS Recovery Results (FY2014)
Category Recovery (tons)
Amountrecycled (tons)
Finaldisposal (tons)
Recyclingrate (%)
Finaldisposal rate
(%)
Used gas appliances and scrapmetal
3,933.3 3,933.3 0.0 100.0 0.0
Waste plastics 635.7 622.5 13.1 97.9 2.1
Polystyrene foam 11.3 11.3 0.0 100.0 0.0
Cardboard boxes 706.5 706.5 0.0 100.0 0.0
Debris 697.2 683.3 0.0 98.0 0.0
Concrete and tile scraps 457.8 170.2 287.6 37.2 62.8
Other 2,560.0 2,214.1 339.9 86.5 13.3
Total 8,990.6 8,330.0 640.6 92.7 7.1
Our environmental protection costs in fiscal 2014 totaled 5.99 billion yen, a decrease of 1.39 billion yen
from the previous fiscal year.
Investments totaled 1.20 billion yen, which was 0.15 billion yen more than the previous year due mainly to
the growth in investments by the production division.
Expenses totaled 4.78 billion yen, a decrease of 1.53 billion yen from the previous fiscal year, mainly due to
decreased cost by such departments as real estate, public relations and R&D.
The economic effect totaled 11.74 billion yen, a decrease of 1.20 billion yen from the previous fiscal year.
This can be attributed to factors such as less cost savings from reductions in excavated soil and operation
of energysaving equipment.
Environmental Accounting of Tokyo Gas Co., Ltd. on a NonConsolidated Basis (FY2014 Results)
Period: April 2014 to March 2015 Boundary: Tokyo Gas Co., Ltd. Standard of reference: "Environmental Accounting Guidelines 2005" issued by Japan's Ministry of the Environment,and "Manual for the Introduction of Environmental Accounting in City Gas Business" prepared by the Japan GasAssociation
(Unit: million yen)
Categories ofEnvironmentalProtection Costs
Investment Expenses Difference
Major items(examples)
FY 2013
FY 2014
FY 2013
FY 2014 Investment Expenses
Pollutionprevention
Capitalinvestment,maintenanceexpenses,depreciation costs,personnelexpenses, etc. forprevention of airpollution, waterpollution, noisepollution, etc.
88 281 286 305 193 19
Environmental Protection Costs
Companybusiness
Globalenvironmentalprotection
Capitalinvestment,maintenanceexpenses,depreciation costs,personnelexpenses, etc. forenergyconservation,effective use ofenergy, protectionof the ozone layer,etc.
213 409 628 784 196 156
Resourcerecycling
Capitalinvestment,maintenanceexpenses,depreciation costs,personnelexpenses, etc. forreduction/recyclingof excavated soil,waste control, etc.
28 11 559 395 17 164
Environmentalmanagement
Costs for greenpurchasing,environmentaleducation,development andoperation of theEnvironmentalManagementSystem,environmentalorganizations, etc.
2 0 553 317 2 236
Other
Costs associatedwith greenificationand soilrehabilitation inaccordance withthe FactoryLocation Act andordinances
39 52 961 506 13 455
Customersites
EnvironmentalR&D
Costs for researchand developmentof technologies tominimizeenvironmentalimpact and highefficiencyappliances andsystems
451 422 1,479 1,170 29 309
Recycling of used gasappliances
Costs of recoveryand recycling ofsold gasappliances,packaging, etc.
0 0 13 8 0 5
Socialaction
programs
Voluntary greenification,landscape conservation, natureconservation, beautification, support of local environmentalactivities, environmentaladvertising, disclosure ofenvironmental information
235 27 1,837 1,298 208 539
Total 1,056 1,203 6,316 4,783 147 1,533
Notes:
Since decimal places have been rounded off to the nearest whole number, the calculated total and amount of increase ordecrease may not match."Expenses" includes depreciation costs of 615 million yen in fiscal 2013 and 593 million yen in fiscal 2014.Since the costs for environmental R&D are extracted from those for environmental protection, they may differ from thefigures stated in the financial report.Capital investment by Tokyo Gas Co., Ltd. (nonconsolidated basis) was 158.7 billion yen, while the sales volume was2,083,595 million yen.
<Main differences from the previous fiscal year>
Pollution prevention The increase in investment was due mainly to the growth in investments by the production department.Global environmental protection The increase in investment was due mainly to an increase in capital investment by the productiondepartment. The increase in expenses was due mainly to the increased cost of repairs and depreciation by theproduction department.Resource recycling The decrease in expenses was due mainly to the decreased cost of waste disposal and transport.Environmental management The decrease in expenses was due mainly to the decreased cost of industrial waste disposal.Other The decrease in expenses was due mainly to the reduced cost of soil treatment work.Environmental R&D The decrease in expenses as a whole was due to the efforts to promote selection and concentration inthe range of investment.Social action programs The decrease in investment was due mainly to reduced investment in renewal of displays at corporatemuseums and greenification. The decrease in expenses was due to a reduction of costs in the Corporate CommunicationsDepartment.
Level of Environmental Burden
Category FY 2013
FY 2014
Pollution
prevention
NOx (plants) mg/m 0.5 0.5
NOx (district heating and cooling centers) g/GJ 7.2 6.6
COD (plants) mg/m 0.0 0.0
Energy usage intensity (plants) GJ/million m 206 203
Level of Environmental Burden
3
3
3
Company
business
Global
environmental
protection
Heat sales intensity (district heating and cooling centers)
GJ/GJ2.1 2.0
Energy usage (business offices) TJ 952 896
Resource
saving
Excavated soil (thousand tons) 448 551
Industrial waste (tons) 4,137 4,430
General waste (tons) 1,154 1,132
Customer
sites
Environmental
R&D
(Reference figures)
CO emissions reduction (million tons CO )1.52 3.29
Recycling of
used gas
appliances
(Reference figures)
Recovery of used gas appliances and scrap metal by SRIMS
(tons)
4,345 3,933
Notes:
Level of environmental burden is based on environmental performance data.Figures are rounded to the nearest whole number.
(Unit: million yen)Economic effect FY2013 FY2014 Difference
Cost reduction from the operation of energysaving equipment 744 428 315
Cost reduction from a reduction in the amount of excavated soil 11,794 10,854 940
Sale of valuables 403 448 46
Other (cost reduction from water conservation) 0 9 9
Total 12,941 11,739 1,202
Note:
The total and difference figures may not be equal to actual calculation results because the numbers are rounded off to thenearest integer.
<Main differences from the previous fiscal year>
Economic effect The economic effect decreased from the previous fiscal year due mainly to lower cost savings fromreductions in excavated soil and use of energysaving equipment. The lower cost savings from reductions in excavated soil are mainly attributable to the fact that therewas no reduction in excavated soil treatment costs associated with the construction of undergroundtanks at LNG terminals in fiscal 2014. The lower cost reduction due to use of energysaving equipment is largely due to a decline in theutilization rate resulting from maintenance and inspection work on cryogenic power generationfacilities.
2 2
Economic Effect
Tokyo Gas prepares and publishes global warming action plans and reports in accordance with localauthority ordinances on measures against global warming.
Tokyo: FY2015 Global Warming Action Plan (Large Establishments)
Hamamatsucho (Head Office) Building
Senju Techno Station
Rikuage Governor Station
Tokyo: Global Warming Action Report (Small/MediumSized Establishments)
Saitama Pref.: FY2014 Global Warming Action Plan Report
Kanagawa Pref.: FY2014 Report on Results of Action against Global Warming in Business
Yokohama City: FY2014 Report on State of Action against Global Warming
CO2 is emitted when city gas is used. There are two ways of calculating CO2 emissions: calculating them
directly from the amount of city gas used (in m ), and calculating them from the calorific value (MJ).
CO emission factor for city gas in terms of kgCO per m N of gas
CO2 emission factor
Service area (Pref.) Type of gas CO2 emission factor per 1 m N (kgCO2/m N)
Tokyo, Kanagawa,
Chiba, Ibaraki,
Tochigi, Saitama
13A
2.211
2.192
2.293
Gunma 13A
2.111
2.092
2.183
CO emission factor for city gas in terms of kgCO per MJ of gas or CO emission factor for city gas in terms of kgC per MJ of gas
Unit calorific values and CO2 emission factors
Service area (Pref.)Type of
gas
Calorific value
per 1 m N
MJ/m N
(kcal/m N)
CO2 emission factor
per 1 MJ of calorific
value
(kgCO2/MJ)
C emission factor
per 1 MJ of calorific
value
(kgC/MJ)
Tokyo, Kanagawa,
Chiba, Ibaraki,
Tochigi, Saitama
13A 45(10,750) 0.0509 0.0139
Gunma 13A 43.14(10,306) 0.0506 0.0138
Calculation of CO emission factors from proportional composition of city gas (PDF:355KB)
3
Calculation from usage (m )3
2 2 3
3 3
Emission factor for residential and other lowpressure gas users (at 15°C and gauge pressure of 2 kPa)1
Factory, commercial building, and other mediumpressure gas users (at 15°C and gauge pressure of 0.981 kPa (100mmH20))
2
Emission factor at Standard Temperature and Pressure (0°C and 101.325kPa (1 atm))3
Calculation from calorific value (MJ)
2 2
2
3
3
3
2
In Japan, the electricity supplied by electric utilities is
generated primarily by thermal power, nuclear power,
and hydroelectric power plants.
Nuclear power plants operate at full capacity except when undergoing routine inspection, while the annual
power output of hydroelectric power plants is determined by the amount of rainfall.
Therefore, in terms of total annual output, it is most likely to be thermal power generation that is cut when
electricity use is reduced by energysaving measures.
The amount of thermal power generation varies according to electricityusage
CO emission factor for thermal power sources: 0.69 kgCO /kWh2 2
Interim Report of the Target Attainment Scenarios SubCommittee, Global Environment Committee of the CentralEnvironment Council (2001)
Changes in annual electricity demand and output by source
Source: Compiled from "FY2004 Overview of Electricity Supply and Demand"Sum of nine electric power companies' fiscal 2004 power generation and transmission plans (excluding Okinawa).
Revisions of energy policy and other possible future developments are disregarded.
Different approaches are adopted for "calculation of actual
emissions" and "assessment of reduction due to measures."
Actual emissions are typically calculated using the average
factor for all power uses based on the assumption that all power
sources are used. The effects of measures pertaining to
electricity use, on the other hand, must be calculated using the
emission factors for the marginal power sources (thermal power
in the case of Japan) affected by those measures.
Greenhouse gas emission calculation, reporting, and publication arrangements similarly assume that
reductions due to such measures can be calculated using the emission factors of the power sources
affected by the measures. For example, the reduction in the case of an annual 300 kWh power saving
(equivalent to approximately 10% of a standard family's annual electricity use) can be calculated as follows
using the emission factor for thermal power sources:
300 kWh x 0.69 kgCO2/kWh ⇒ CO2 reduction of 207 kg
The Greenhouse Gas (GHG) Protocol's global "Guidelines for Quantifying GHG Reductions from Grid
Connected Electricity Projects" (WBCSD/WRI) also require the use of marginal factors to calculate the
reduction of CO2 emissions resulting from power reductions.
For more details GHG Protocol Guidelines
Method of calculation of CO reduction resulting from lower electricityusage
2
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