town of fairfield energy management 1996-2014 presented by edward boman april 30, 2014

Town of Fairfield Energy Management

1996-2014

Presented by Edward BomanApril 30, 2014

Town of Fairfield Energy Management: Electricity

Since 1996 Fairfield has achieved the following in the 45 buildings it manages: •39% decrease in electricity purchased •94% reduction in fuel oil use

Total energy expenditures did not decrease: • 2.5% increase in total energy expenditures


• The Town has reduced building electric consumption in 12 larger buildings, from 3,460,000kwh to 2,178,000kwh, by 37% in 2012-2013.

• That reduction of 1,282,000kwh translates into $192,000 avoided expenditures this year.


• Of the other 33 buildings, there was a savings of 308,000kwh and $48,000.

• In summary, Fairfield cut 1,590,000kwh of use, a 39%, reduction and saved $238,000


• However, Fairfield added substantial new electric use requirements during this period, including: – Desk top computers – Power to the marina docks– Three private benefit facilities – Three air conditioning upgrades


• Eleven (11) new buildings were constructed and two (2) additions, totaling 183,979 square feet were also added during this time frame. That is a 58% increase in total building square footage, taking the total from 314,524 to 498,500

• These changes added $177,000 and 885,000kwh


• To summarize : – Fairfield cut 1,590,000kwh of use, a

39%,reduction and saved $238,000– The Town added 1,699,000kwh of new use

and $263,000 in new costs– The price for electricity also rose from

10.9c/kwh to 15.5c/kwh-- by 42%– Thus Fairfield paid $837,000 for almost the

same amount of power it bought for $448,000 in 1996

Town of Fairfield Energy Management: Heat

Fairfield has switched from a heating fuel dependent Town to a natural gas or dual fuel dependent Town


Heating Fuel

1995 2013

Cost/ gal $0.70/gal $3.10/gal 343%

Total Gals 388,000gal 16,647gal (371,353) gal

Total Cost $271,767 $51,605 ($220,000)


Natural Gas 1995 2014Cost /ccf $0.90 $1.23 36%Total ccfs 39,526ccf 228,347 188,821Total cost $36,000 $281,000 $245,000


• The result is a $10,000 savings in the overall cost of heat

• However, that includes the cost to heat over 180,000sf of new building space

• In does not include the avoided cost of the purchase of 370,000gal of heating fuel

• After the replacement cost of natural gas is calculated the avoided cost is over $900,000 in 2014

Town of Fairfield Energy Management: Get the Facts

• Categorize your buildings by:1. KWH use2. KW use3. Size4. Age (30 years or older always need work)5. Hours of use6. Seasonality


• Determine which buildings use the most electricity and how the electricity is being used There are four (4) broad categories:

• Lighting –up to 50% of load• Air conditioning (cooling)—8-23%• Plug-ins, such as computers, soda

machines, etc –5-20%• Machinery (e.g.,at the Water Pollution Control Facility)---up to 55%

Town of Fairfield Energy Management:Heat

• Wherever possible convert from heating fuel to natural gas

• Consider solar hot water• The savings are huge in:– Dollars– Air emissions, and– MMBTUs

Town of Fairfield Energy Management:Green Power

• 60kw natural gas trigeneration facility is installed in Police Department– Total cost paid by AARA grant– Produces 475,000kwh and– 16,000ccf avoided natural gas purchase – $50,000 savings

Town of Fairfield Energy Management:Green Power

• ZREC program—During the first two years of the program Fairfield received 10 PV awards – One large project for 1.0megawatts– Nine small projects for 850 kw

• We are submitting another large ZREC for 1.0megawatt next month

• Over 20 years the guaranteed savings are over $3,100,000

Town of Fairfield Energy Management:Water Pollution Control Facility (WPCF)

• I treat the WPCF as almost separate from the rest of the Town

• It is responsible over 40% of the electricity the Town uses

• It must operate 24 hours a day, 365 days a year• Environmentally, it produces significant gas

emissions, water discharges and solids all of which must be treated, using electricity

Town of Fairfield Energy Management: WPCF

• The goals:• Reduce consumption• Increase the use of Green Energy• Reduce , or at least control costs, and • Minimize environmental negatives


• In 1995 Fairfield signed a DEP consent order for the WPCF

• $35,000,000 upgrade• 100% Clean Water Fund Loan and Grant• Hard sell to taxpayers


• Received $135,000 incentives from UI Energy Opportunities

• Installed highest commercially available, energy efficient equipment

• Installed VFDs wherever possible• Installed highest power factor equipment• Result 1,350,000kwh and $210,00 saved

annually

Town of Fairfield Energy Management:WPCF

• As part of a WPCF upgrade Fairfield 1. Installed a 200kw fuel cell with a 75% grant from

CEF2. Installed a 32kw photovoltaic system with

another 75% CEF grant3. Installed 360kw of gas fired microturbines


• Produces 2,700,000kwh annually• Savings $400,000 this year• That is a payback of 3.4years• Savings would have been higher, but fuel cell

died after 5 years• However 2,725,000kwh were added by the

upgrade


• Equipment Upgrades-for new technology• These projects benefit form United

Illuminating’s (UI) Energy Opportunity Program

• Provides grants and zero interest loans • Maximum payback of 4 years


• VFD upgrades—900,000kwh savings• LED lights—85,000kwh• New Fluorescent Lighting Upgrades—

110,000kwh• Energy “dashboard”—39,000kwh• Total savings– 1,134,000 kwh


We adopted positive preventive maintenance practices:– Predictive maintenance– Laser Alignment– Thermography– Vibration Analysis– Lubrication & Hydraulic flow analysis– Extends useful life of equipment


• Total cost $877,000• UI grants $284,000• UI zero interest • Loans $200,000• WPCF Cost $393,000• WPCF savings $176,000/yr.• Payback --- 2.2years


• Fairfield is bidding in to the next ZREC program

• A PV system producing 1,450,000kwh is proposed for the WPCF

• The Power Purchase Agreement will save $100,000 in year one


• A 100kw combined heat and power plant is being proposed that will produce about 800,000kwh and save $125,000

• A UI funded energy and process audit is nearing completionThis will suggest numerous other energy savings • An “energy dashboard “ is installed that will

measure power consumption by every piece of equipment to help control costs

Town of Fairfield Energy Management:The Process

• An energy consultant is critical for success• Must be familiar with UI or CL&P s programs• Must be familiar with State programs• Must be able to research and critique new

technologies• Must have relationships with the best

contractors for installation• Fairfield selected Earth Corps Energy Services


• Choose an energy consultant• Perform energy audits• Create a long-term comprehensive plan• Utilize the CL&P and UI energy savings

programs• Utilize whatever state or federal grants are

available, especially DEEP and CEFIA• Seek LREC and ZREC funding


• Consider performance contracting– Fairfield carried out a successful $7,000,000

performance contract with JCI over 10 years– Used municipal bonds because they are cheaper– Installed dual fuel– Lighting, HVAC, combined heat and power– Building controls system– Automated building managed maintenance plan– Indoor air quality stressed– Maintenance staff trained


• The leaders of your organization will consistently support the efforts, whether political, governmental or private sector, and

• Success breeds success.

Town of Fairfield Energy Management: The Future

• Technology is constantly improving and becoming more cost effective

• The consultant must constantly analyze the results and

• Seek funding aid• Fairfield only pays the consultant if it is

successful in receiving aid for the Town


• The largest technology improvements commercially available during the last two years on an affordable basis include:

1. LED and new fluorescent lighting2. Plug power controls 3. Wireless formats for controls4. Open protocol computer equipment5. Ductless heating and cooling equipment


5. Solar hot water systems, for heat as well as hot water 6. Computerized, automated controls for

lighting, heating and air cooling on a room by room basis or machine by machine

basis

Town of Fairfield Energy Management:Summary

• Fairfield has carried out energy conservation measures in 18 of its top 20 electric consumers

• We have installed green power in 13 of these buildings

• Are planning to finish that list in both categories over the next 3 years

Town of Fairfield Energy Management:Summary

• We have installed the wireless building control system in 5 buildings and are planning to install it in 5 others

• LED and advanced fluorescent lights are now in 9 locations

• We have also put solar hot water in 2 of the buildings and are planning 3 other instalations


LESSONS LEARNED• The project leader must assume ownership• The elected officials must buy in early• The building managers must buy in early• Appropriate the necessary funding early• Emphasize that it is a long term, continuous

improvement program


Your champion must make a logical case : that energy conservation and the use of green power :1. Uses commercial technology2. Can save the taxpayer money3. benefits both the environment and public

health4. while still allowing the private sector a profit,


• The leaders of your organization will consistently support the efforts, whether political, governmental or private sector, and

• Success breeds success.

town of fairfield energy management 1996-2014 presented by edward boman april 30, 2014

Documents

heat fairfield

kwh slide

total energy expenditures

kwh of use

dual fuel dependent

kwh of new use

gal total cost

seasonality slide