renton school · pdf filethe renton school district’s ... dimmitt ms 109,070 $0.89 916...

Office of Resource Conservation Management 2011

Renton School District Resource Conservation Management 2010 – 2011 Annual Utilities Report

2010 – 2011 Annual Utilities Report

Office of Resource Conservation Management 2011 P a g e | 2

Table of Contents

Executive Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6

Energy Analysis / Historical Resource Conservation Metrics

Resource Conservation Metrics

Energy Use Ranking by Cost

Resource Conservation Management Program . . . . . . . . . . . . . . . . . . . . . . .7

RCM Program Metrics

Energy Star . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Portfolio Manager

2010-2011 Energy Conservation Projects . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-13

KEC, Dimmitt MS, Hazen HS, Lindbergh HS, Bryn Mawr ES, Talbot ES,

Lakeridge ES, Campbell ES, Highlands ES, Kennydale ES, Maplewood ES,

Sierra ES, McKnight MS, Nelsen MS.

Energy Service Company (ESCO) Synopsys . . . . . . . . . . . . . . . . . . . . . . . . .14-16

2010-2011 Projects – 2008 Bond and State Energy Grant Projects

Energy Service Companies, Trane and Ameresco

Monitoring and Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-18

Utility Monitoring and Verification, and Demand Limiting Technology

Ongoing Resource Conservation Management . . . . . . . . . . . . . . . . . . . . . .19-20

LED demonstration pilot project, KC Green Schools Program,

Utility Incentives, Solar, and Surface Water Mgt.

Capital Projects Collaborations and Emerging Project Activity . . . . . . . . 21

Hazen Addition, SLC, ECLC, Re-commissioning, and Demand Limiting

Addendum A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22-23

RCM Program Evaluation Spreadsheets

Addendum B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24-27

Energy Star - Portfolio Manager / Facilities Summary



Resource Conservation Management

Executive Summary

Conserving Utility and Operating Funds in Support of our Educational Mission

The Renton School District’s (RSD) Office of Resource Conservation Management is committed to minimizing the operating cost of Electricity, Natural Gas, Water, Wastewater, Surface Water Management fee’s, and Solid Waste and Recycling. This report baseline’s the total energy expenditures for the year beginning September 2006 through August 2007, which is referred to as our base energy accounting year. Costs over the next four years are tracked, and then identified with our primary focus on resource conservation activities during our last complete school year 09/2010 – 08/2011. The quantitative and qualitative story of our energy conservation success in the 2010-2011 time period is illustrated in the accompanying tables, charts and text. Our primary efforts have to do with Resource Conservation Management in 22 district facilities, primarily focused on lighting upgrades, building control upgrades, mechanical system upgrades, and new construction. Of our 22 schools, 18 had reductions in energy usage during this reporting period – a substantial 82%. Other conservation metrics in terms of average costs are based on: cost per square foot, cost per student, and cost by type of facility. Although the student population has seen steady increases yearly, the cost per student and cost per sqft. have decreased from $180.00 to $150.00 per student per year, and from $0.99 to $0.90 per sqft. While the average cost per sqft. by type was $1.03 for elementary schools, $0.90 for middle schools, and $1.14 for high schools. Based on national averages for educational type facilities we are striving to be the best performing school facilities in the country. Additional energy efficiency efforts had to do with an increased involvement in the King County Green Schools program, the development of a FOMC web site with a Resource Conservation Management section, unanticipated receipts for solar energy production at Hazen HS and Dimmitt MS, and utility incentives for lighting projects. Further operational benefits were achieved when King County Surface Water management granted us a waiver for facilities in unincorporated King County. For bond funded projects, enhanced with state energy grants, we collaborated on a new data center and server room that together with new tech levy funded server, switches, and power supplies have resulted in a

facility that is substantially more energy efficient and a fine example of interdepartmental cooperation. The energy savings in the first several months of operations at the new data center indicates a 50% decrease in energy usage. At Dimmitt MS, major upgrades included new energy efficient boilers, super energy efficient water heaters, and the installation of 500 energy efficient double pane windows, accompanied by new insulated mapes panels. These upgrades have resulted in substantial energy savings of over 30%, increased occupant comfort, and a much improved learning environment.

During this reporting

period 82% of school district facilities had a

reduction in energy usage

Energy savings in the first four months of operations

indicates a 50% decrease in

energy usage!



Executive Summary cont.

To benchmark our facilities at a national level we’re currently part of the Environmental Protection Agencies (EPA) Department of Energy (DOE), Energy Star Portfolio Management program. In 2002 the district had 2 Energy Star facilities; in our latest data submittal we had ten facilities that were Energy Star eligible. Good progress has been made achieving energy efficiency in recent years, with a goal of 100% Energy Star eligible facilities by 2015, and annual savings and avoided cost of several hundred thousand dollars annually over the life of installed measures. During this reporting period, our consumption of natural gas and electricity were below 2006 levels even though student enrollment and total square footage has increased exponentially.

Energy Analysis

Another tool that gives us the ability to do in depth energy analysis is a utility sponsored energy accounting software program titled: Utility Manager Pro. On a monthly basis the local utilities send out electrical and natural gas data that is downloaded into our UM Pro db. Once that raw data is organize, and verified we build a comprehensive spreadsheet from which we are able to compute the following energy savings totals – not to be confused with cumulative avoided cost totals.

Historical Resource Conservation Metrics

Base year comparisons 2006/07 through 20010-11

Annual Totals

9/06-8/2007

$2,390,369.62

9/07-08/2008

$2,278,689.33

9/08-8/2009

$2,302,957.32

9/09-8/2010

$2,048,240.59

9/10-08/2011

$2,101,808.66

$288,560.96 Cumulative Cost (Savings) 09/2007-08/2011*

*based on UM Pro energy accounting data.




Resource Conservation Metrics

On a school by school basis starting with elementary schools, we take an in-depth accounting of the past three years looking at the costs of electric and natural gas expenditures for the heating season, and an annual total showing the cost for the whole school year from September through August. Then we subtract the previous years total from the most resent years total to show the ―Delta‖ which represents the difference in cost either positively or negatively. We then do a comparison between the cost per student per year, and cost per square foot per year.

Costs Per - Resource Conservation Metrics

Number of Students

06-07’ 13,118

07-08’ 13,336

08-09' 13,447

09-10' 13,622

10-11' 13,958

Avg.$/Student 06-07’ $182.22

07-08’ $179.24

08-09' $171.20

09-10' $150.36

10-11' $150.58

Avg.$/SqFt. 06-07’ $1.03

07-08’ $ 0.99

08-09' $ 1.00

09-10' $ 0.89

10-11' $ 0.91

Avg.$ /Sq.Ft. by Type

Elementary - ES $1.03

Middle - MS $0.90

High - HS $1.14

To further validate our quantitative data, we obtain General Fund Expenditure printouts from the district’s Budget Office, Accounts Payable Department depicting the full budget year expenditures for utilities. This information, as was referenced earlier clearly demonstrates that the cost of electric and gas utilities are escalating which is also the case with garbage rates, water and sewer rates, and surface water management rates. To effectively manage utility price escalation, the district has an energy management plan and an emerging re-commissioning effort underway that identifies facility operations that are energy related and that will be addressed in a systematic deliberate way to target energy conservation measures (ECM’s) that will be most cost effective, provide the highest return on investment, and result in decreased energy and maintenance expenditures.




Energy Use Ranking

Another critically important metric is ranking facilities by cost per square foot. We also analyze the number of students during the time period by facility, average cost per student by facility, and average cost per square foot. We then rank the facilities based on performance, qualitatively and quantitatively in the following table format.

Energy Use Ranking by Cost per Square Foot Sept. 2010 – Aug. 2011

Facility SqFt Cost / SqFt # of Students Cost/Student

Campbell Hill ES 55,624 $0.70 389 $99

Bryn Mawr ES 47,924 $0.71 507 $67

Lakeridge ES 52,958 $0.78 441 $94

McKnight MS 126,706 $0.89 1139 $99

Dimmitt MS 109,070 $0.89 916 $106

Hazen HS 299,495 $0.90 1372 $197

Nelsen MS 124,234 $0.91 1053 $107

Renton Park ES 63,826 $0.94 494 $122

Highlands ES 58,966 $0.96 612 $92

Talbot Hill ES 56,845 $1.01 466 $123

Tiffany Park ES 58,758 $1.01 449 $133

Cascade ES 57,121 $1.06 539 $113

Benson Hill ES 64,898 $1.10 561 $127

Hazelwood ES 52,924 $1.18 452 $130

Kennydale ES 64,733 $1.19 554 $139

Kennydale ES 64,733 $1.19 554 $139

Renton HS 229,006 1.19 1216 $303

Maplewood Heights ES 54,634 $1.26 562 $122

Lindbergh HS 299,006 $1.32 1220 $248

Sierra Heights ES 53,992 $1.37 596 $124

Top Three Facilities Ranked by Facility Type

Facility SqFt Cost / SqFt # of Students Cost/Student

Campbell Hill ES 55,624 $0.70 389 $99

McKnight MS 126,706 $0.89 1139 $99

Hazen HS 299,495 $0.90 1372 $197



RCM Program 2007-2010

One of our biggest challenges over the past several years has been working with Puget Sound Energy (PSE)

on the Resource Conservation Management (RCM) program. A three year commitment, the program was one

third over by the time the district found a qualified energy management person to be the program manager.

Another major challenge that occurred was the onslaught of state energy grant opportunities which demanded

fiscal priority over the primary tasks associated with the RCM program. What the utility then decided was that

the majority of the time spent doing resource conservation management was only a small portion of the total

time involved to do the RCM program. Regardless of the utility’s administrative challenges, the district still

managed to meet and exceed the utilities energy savings goal of 6% over the contractual period.

What that has meant for the district is a $20,000 grant that’s been received, which includes a portion of the

RCM salary for two of the three year contractual period, and a performance bonus for exceeding the 6%

energy savings goal. The following table shows the energy savings associated with the PSE / RCM program,

based on the utilities criteria and calculations. The RCM program is primarily about occupant behavioral

changes as it relates to energy usage, and operations and maintenance measures that affect a buildings

energy usage and energy performance.

RCM Program Energy Saving Metrics

Sites in

Portfolio

Sites with

Reductions

% of Sites

w/ Reductions

Time Frame Electric Savings Gas Savings

18 11 61% 2007-2008 467,435 kWh 50,340 Therms

18 10 56% 2008-2009 260,561 kWh 58,825 Therms

18 16 89% 2009-2010 987,274 kWh 56,345 Therms

18 15 82% 2010-2011 673,201 kWh 25,471 Therms

Note: does not include the four “west hill” schools in Seattle City Light service territory, because they are not totally PSE.

The above table is qualitative and quantitative in terms of consumption savings, but does not show monetary

avoided cost figures. The avoided cost of gas and electric consumption - the additional amount that we would

have had to pay were it not for our conservation efforts is: $448,900.00. What the avoided cost does not take

into consideration is the decrease (avoided cost) in maintenance of mechanical equipment, and associated

equipment and materials. It is estimated that for every $100,000 of energy avoided cost, there is $8,000 -

$10,000 of avoided cost in maintenance and materials.

Note: Including Seattle City Light figures in the avoided cost calculation, the total avoided cost is: $486,957.00

Please see Addendum A. for in depth quantitative data pertinent to our Puget Sound Energy, RCM program.



As an added feature of this annual report we have included EPA data from our

energy accounting program that shows us our energy use intensity (EUI) for each of

our facilities and the percentage at which they rank.

In the attached ―Addendum B‖, there is information relating to each of our facilities

that provide the current rating, the percentage of energy usage changed from the

baseline, total square footage, the date of the energy period, and eligibility for a

national EPA Energy Star rating.

By developing our national EPA portfolio manager, we discovered that because of the conservation measures

that have been implemented over the past several years we now have a number of eligible energy star

candidates.

They are in alphabetical order:

1. Bryn Mawr ES rated at 79% (Also a 2002 Energy Star recipient)

2. Campbell Hill ES rated at 77%

3. Facility Operations and Maintenance Center rated at 79%

4. Hazen HS rated at 78%

5. Highlands ES rated at 80%

6. Kohlwes Education Center rated at 83%

7. Lakeridge ES rated at 83%

8. McKnight MS rated at 85% (Also a 2002 Energy Star recipient)

9. Nelson MS rated at 75%

10. Talbot Hill rated at 75%

The rating system’s 1–100 scale allows everyone to quickly understand how a building is performing — a rating of 50 indicates average energy performance, while a rating of 75 or better indicates top performance. A facility must rank 75% or above to be eligible for a nationally recognized Energy Star. Our goal is to have all of our facilities ranked in the top percentile, and be Energy Star eligible by 2014.

http://upload.wikimedia.org/wikipedia/commons/7/73/Energy_Star_logo.svg



2010-2011Energy Conservation Projects

2008 Bond and State Energy Grant Funded Projects

Beginning in the late summer early fall of 2010, combining several million dollars in state energy grants

augmented with funds from capitol project bond funds and technology levy funds; we began a planning

process for projects that would span the next 36 months. To begin with, the districts Information Management

Services (IMS) department formed a team to begin the work of transforming and updating their server room by

upgrading power supplies, network hubs, and servers that provided more efficient and reliable computing

power to the whole district. In support of that effort, we collaborated on a plan to upgrade mechanical systems

to support the server room, and a new chiller that would serve the entire building.

Kohlwes Education Center (KEC) Once the new server room reconfiguration was begun, plans were being drawn up to enclose the server room

in a state of the art data center that would better meet the needs of the district while also increasing system

reliability, and increasing energy efficiency of complex direct digitally controlled (DDC) mechanical systems.

The initial calculations that were done showed the data center equipment to be a 20,000 Watt electric load.

The new equipment which was funded by the 2008 technology levy, was so energy efficient that the total

wattage is now measuring less than 10,000 watts – a savings of over 50%! Another factor in the energy saving

calculation was new energy efficient lighting, energy controls, and rooftop air conditioning units that have

economizer capabilities that drastically minimize the use of mechanical cooling.

Along with the data center upgrades, the old rooftop mechanical cooling unit at KEC that provided air

conditioning to the rest of the building was so dated that some of the parts were no longer available, annual

maintenance was ongoing, and there was considerable expense involved to keep the old unit operational. Over

the course of a weekend in early July 2011 the old unit was disconnected and craned off the roof and a new

energy efficient unit was put in its place. By the following Monday morning the new unit was 100% operational

and the facility had no interruption of their mechanical cooling. As a result of these technology and mechanical

system upgrades our energy usage has decreased dramatically, maintenance visits are now of a preventative

type, and operating funds have been redirected. The following table shows the first four months of operations

at the KEC, compared to the same period in 2010 and the associated energy and monetary savings.

KEC Energy Analysis – Four Month Comparison

Date kWh kWh cost kW kW cost Total cost

09/10 82,992 $6,785.24 246 $1,189.55 $7,975.00

10/10 91,046 $7,632.18 278 $1,938.20 $9,570.00

11/10 77,720 $6,336.91 237 $1,681.76 $8,019.00

12/10 77,181 $6,348.81 228 $1,537.76 $7,887.00

sub total 328,939 $27,103.14 989 $6,347.27 $33,450.00

09/11 72,115 $5,891.99 203 $946.88 $6,839.00

10/11 69,117 $5,856.64 208 $1,335.94 $7,193.00

11/11 59,015 $5,017.92 156 $978.22 $5,996.00

12/11 67,360 $5,702.89 164 $1,006.28 $6,709.00

sub total 267,607 $22,469.44 731 $4,267.32 $26,737.00

Current Savings 61,332 $4,633.70 258 $2,079.95 $6,713.65

Projected Savings 240,000 $18,500.00 1000 $8,200.00 $26,700.00

Initial four month kWh savings of over 18%, and kW savings of over 26%!



2010-2011 Energy Conservation Projects cont.

Dimmitt MS Another major project in the summer of 2011 was the installation of 500 new super energy efficient, low e,

double pane windows at Dimmitt Middle School; along with new hot water heaters, new gas fired steam boilers

with stack heat exchangers and zonal control valves, that are tied into the building energy control system. The

old single pane windows that were replaced were allowing cold air infiltration during the heating season and

intense solar gain in the early fall and late spring causing an increase in energy usage and occupant

discomfort throughout the school year. With the installation of the new boilers, heat exchangers, zonal control

valves, water heaters, and windows, the natural gas consumption so far this heating season has dropped

dramatically while occupant comfort has improved proportionally. This project was multi-dimensional in terms

of occupant comfort, energy savings and avoiding excessive maintenance expenses.

Dimmitt MS N.Gas – Four Month comparison

Date Therms Cost

09/10 1,308 $1,230.92

10/10 3,436 $2,940.34

11/10 6,731 $5,627.73

12/10 10,026 $8,300.00

Sub 20,200 $18,100.00

09/11 590 $638.70

10/11 2,815 $2,459.83

11/11 4,758 $3,897.77

12/11 3,845 $3,108.94

sub 11,418 $10,106.00

Current Savings 8,775 $8,000.00

Projected Savings 20,000 $18,000.00

Initial four month energy savings of over 40%!

Lindbergh HS and Talbot Hill ES Two major building control projects were begun in the Summer of 2011 at Lindbergh HS, and Talbot Hill ES.

These projects were upgrades to outdated and malfunctioning control systems that had long needed to be

replaced. The Lindbergh HS project also is giving us the opportunity to have remote access for the first time

which allows our technicians (and outside vendors) the ability to remotely see how the mechanical system is

functioning, and make needed adjustments without having to travel all those round trip miles to make a service

call. It also gives us the ability to remotely change schedules, temperature set points, and monitor classroom

and office comfort levels. With the addition of the new control system at Lindbergh HS, we now have remote

access to all of our facilities throughout the district and building control of over 2.3 million square feet.

Direct Digital Control In order to achieve better direct remote access to building control systems, one of our energy grants stipulated

that we install three dedicated remote access work stations so we’re able to monitor, adjust, and control

building systems. With the type of sophisticated building systems in use today, having remote access control of

those systems give operators the ability to manage more facility square footage in a more economical and

sustainable way.




Hazen HS Fuel Replacement

Another project that was critical to maintaining our Puget Sound Energy (PSE) schedule 86 interruptible rate,

was to replace a failing fuel oil tank at Hazen HS. This 10,000 gallon fuel tank was beyond it’s useful life and

had ongoing water contamination issues that needed to be dealt with on an annual basis. Because soil and

water contamination was discovered during extraction of the tank, environmental mitigation needed to occur

which caused project delays. However, once the Department of Ecology was satisfied with our mitigation

strategy, a new double walled corrosion proof tank was installed, covered with new soil and the project was

completed. Now we have a fuel supply that’s not contaminated and we’re able to keep the more cost effective

schedule 86 interruptible rate in place.

Fuel Tank Extraction and Replacement

Program Manager: J. Stine – RSD

Bogard Engineering - Project Mgr. L. Bogard

Hazen HS Fuel Tank demo and

replacement

New 10 K Gallon fuel tank, and

300 Gallon Day tank

Substantial completion

August 2011

Lakeridge ES and Bryn Mawr ES Mechanical System Upgrade Two interesting projects at Lakeridge ES and Bryn Mawr ES stemmed from an earlier project where we

recognized further upgrades that could be done to optimize the mechanical system by adding variable

frequency drives and differential pressure control couplings to the circulating pumps serving the hydronic loops

(heating and cooling systems). Installation of the VFD’s has permitted less water to be pumped through the

system saving energy, and the VFD’s are used to ―soft start‖ the pump motors which will significantly reduce

stress on the motors, bearings, coupling and increase the life of the pumps exponentially.




Lighting Upgrades In regards to projects that were done at multiple locations throughout the district, our main targets were Gym &

Cafeteria Lighting upgrades where we replaced 250 and 400 Watt metal halide lamps with energy efficient

florescent lamps that are on average 52% more energy efficient. This project was done at six locations which

equates to actually avoiding the energy cost to light 3 of our elementary school gyms!

Facility Project Lighting upgrades Wattage Reduction

Bryn Mawr ES Lighting Gym & Cafeteria 50%

Campbell ES Lighting Gym & Cafeteria 51%

Highlands ES Lighting Gym & Cafeteria 51%

Kennydale ES Lighting Gym 51%

Lakeridge ES Lighting Gym 62%

Maplewood ES Lighting Gym 48%

As well as wattage reduction, which equals direct energy savings, there is maintenance savings proportional to

the life of the new lamps. Lighting levels have also increased making for a better learning environment, and

enhanced color rendition as seen in these before and after jpg’s at Bryn Mawr ES.

Before After

For additional before and after photo’s of lighting upgrades please visit our web site at: http://www.rentonschools.us/FILES/DISTRICT/Energy%20Resource%20Conservation/RCM_Project%20Highlights%20(before-

after)%20110810.pdf

http://www.rentonschools.us/FILES/DISTRICT/Energy%20Resource%20Conservation/RCM_Project%20Highlights%20(before-after)%20110810.pdf

http://www.rentonschools.us/FILES/DISTRICT/Energy%20Resource%20Conservation/RCM_Project%20Highlights%20(before-after)%20110810.pdf




Additional Lighting Upgrades

Additional lighting projects that began in fall of 2010 - 2011 were ballast and lamp upgrades that included

paring programmable ballasts and long life lamps that together have a warranty period of over 40,000 hours.

What that means to the district is instead of the annual expense of changing out lamps, legally disposing of the

lamps, and the custodial time involved, we now have up to 10 years of lamp life! Along with respectable energy

savings that further helped to justify the project. Because of ongoing technology improvements in fluorescent

lamp output, we have begun a district wide upgrade to replace 32 Watt lamps with 28 Watt lamps in

classrooms and 25 Watt lamps in hallways. The lighting upgrades were so extensive in the initial group of nine

schools that the project was extended past the summer construction season and beyond the scope of this

report. It will be interesting to see what kind of energy savings there will be this school year, based on the

calculated savings. The energy savings of the new lighting strategy will be reported in the next Resource

Conservation Management annual report.

Plug Load mitigation was another conservation effort during this time frame, in which we installed over 2,000

―Smart‖ Power strips and distributed several hundred Marley radiant personal heaters. Although we provided

schools with individual one page instructions on what the power strips were for and how they worked, there

were calls to the IMS help desk because of the way the strips were configured in the individual classroom

computer centers. There were also a <1% failure rate adding to the burden of IMS service calls. Ironically for

the units that are being used by staff, there has not been any issues reported. Overall the Smart power strips, if

operated according to the printed instructions did save the calculated amount of energy. Because of the lack of

understanding by some staff on how to operate these energy saving devices a decision was made to pull some

of the units and re-establish the project at some future date.

Regarding the radiant heaters, they have been distributed to every district facility. Our custodians have been

providing them to building occupants, while confiscating the high wattage ―energy hog‖ space heaters that are

freely used throughout the district. The specific energy savings associated with the two types of space heaters

are as follows:

Energy Efficient Radiant Heat vs. Energy Inefficient Resistance heat

Type Power Cost per day Heating Season

cost

Annual cost for 500 units

throughout the district

Electric

Resistance

1500 Watt .72 cents $90 $45,000

Electric Radiant 170 Watts .08 cents $10 $5,000

On a unit by unit basis, the savings associated with replacement of the space heaters is not that significant, but

cumulatively there is a potential to provide more precise occupant comfort and save tens of thousands of

dollars annually. Other plug load issues throughout the district include personal items like refrigerators, coffee

makers, microwaves, and stereo systems.



Energy Service Company (ESCO) Synopsys

2010-2011 Projects - 2008 Bond and State Energy Grant Projects

Fall 2010 - Summer 2011

Program Manager: J. Stine – RSD

ESCO: Trane - Project Mgr. S. Eisenhauer

Facility Project Measures Completed

Dimmitt MS Boiler Room Boilers, DHW, Automated Valves, Heat Exchangers

Aug. 30th

Dimmitt MS Glazing 500 New windows and insulated panels Aug. 26th

KEC Chiller Chiller upgrade, and controls June 25th

KEC Data Center Data room build, walls, glazing, duct work, and lighting

Aug 26th

KEC Data Center 7.5 T rooftop unit, and controls July 18th

District Wide Grid Navigator Electrical and Gas monitoring Aug.

Bryn Mawr ES Lighting Gym & Cafeteria Lighting upgrades

Aug.

Campbell ES Lighting Gym & Cafeteria Lighting upgrades

June

Highlands ES Lighting Gym & Cafeteria Lighting upgrades

July

Kennydale ES Lighting Gym Lighting upgrades June

Lakeridge ES Lighting Gym July

Maplewood ES Lighting Gym

Aug.

Lakeridge & Bryn Mawr ES

Mechanical system upgrade

AFD and couplings Aug.

The projects in the above table were completed in the summer of 2011, at a cost of $3,355,000.00 of which

$1.8 MM was from internal funding and $1.5 MM was from state energy grants. The actual cost was less than

the estimate, resulting in a $184,146.00 deductive change order – which is reflected above. Another six figure

economy that we netted was due to each of the project phases that go through the state system requires

Department of General Administration oversight, several of the phases over lapped so we requested they be

combined saving the district over $100,000.00 in fee’s. Over the life of the installed energy conservation

measures outlined in the above table; there will be energy, along with maintenance and administrative savings

that will positively benefit the districts operations budget in a variety of tangible ways.



ESCO Synopsys cont.

2010-2011 Projects - 2008 Bond and State Energy Grant Projects

Fall 2010 - Summer 2011

Program Manager: J. Stine - RSD

ESCO: Ameresco - Project Mgr. D. Rogers, and K. Jones


Talbot ES Building Automation DDC upgrade,

Remote capability

September

Lindbergh HS Building Automation DDC upgrade,

Remote capability

September

Kennydale ES Commissioning TBD Ongoing

FOMC Dedicated Remote

DDC

3 Work Stations with remote DDC June

District Wide Plug Load Mitigation Energy saving, ―Smart‖ Power Strips August

District Wide Plug Load Mitigation Radiant Heaters On going

The projects in the above table and a number of lighting projects in the table on the following page were

completed in the summer of 2011, at a nominal cost of which a sizable amount was from a state energy grant,

and the remainder came from internal bond funds. Because all of the state energy grant funding must be spent

by June 2013 we will be using state energy grant funds first followed by obligated bond funds.

There are a number of additional projects that are in the design phase and also a major utility sponsored

building re-commissioning project that will benefit the majority of district facilities. The re-commissioning

process looks at all of the inner workings of a facilities energy systems and comes up with a list of targeted

energy conservation measures (ECM’s) that will provide the best return on investment (ROI) and result in the

best energy savings potential. The utility involvement is critical in that if we follow their prescribed path and

install recommended ECM’s, then the utility will fund the re-commissioning process, provide incentives that will

cover the incremental cost of measures, and include applicable performance bonuses. With obligated funds in

place to do the re-commissioning and install recommended ECM’s, whatever we receive back from the utility

will enhance our efforts proportionally.



ESCO Synopsys cont.

Fall, Winter, Spring, Summer 2011-2012

Program Manager: J. Stine - RSD

ESCO: Ameresco - Project Mgr. D. Rogers, and K. Jones


Bryn Mawr ES Ballast and Lamp Whole sale Lighting

Change-outs

100%

Cascade ES Ballast and Lamp Whole sale Lighting

Change-outs

100%

Campbell ES Ballast and Lamp Whole sale Lighting

Change-outs

100%

Hazen HS Ballast and Lamp Cafeteria: 65/4 lamp fixtures, resized to a

2 lamp configuration

100%

Kennydale ES

(In House Install)

Lamp Only Whole sale Lighting

Change-outs

100%

Lakeridge ES Ballast and Lamp Whole sale Lighting

Change-outs

100%

McKnight MS Ballast and Lamp Whole sale Lighting

Change-outs

100%

Nelsen MS Ballast and Lamp Whole sale Lighting

Change-outs

100%

Sierra ES Ballast and Lamp Whole sale Lighting

Change-outs

100%

Hazen HS Pool Heat Exchanger, Ventilation upgrades Design phase

Hazelwood ES DDC upgrades Demand Limiting, and AX Platform 100%

The lighting upgrades in the above table were installed in the Summer of 2011, surplus lamps from each of

these sites were collected and are being used in other school facilities for spares. As well as wattage

reduction, which equals direct energy savings, there is maintenance savings proportional to the 40,000 hour

life of the new lamps. Lighting levels have also increased making for a better learning environment, and

enhanced color rendition.



Monitoring and Verification – Sub Metering We are contractually obligated by the Office of the Superintendent of Public Instruction (OSPI) and the

Department of Commerce (DOC) to do annual monitoring and verification of energy usage for our projects that

are partially funded with state energy grants. In order to monitor our Electrical, and Natural Gas consumption

we have installed sub metering devices at each facility throughout the district which gives us that ability. The

sub metering device specifically provides hourly, daily, weekly, monthly, and yearly consumption and cost data

graphically displayed for detailed energy analysis. The following is an example of the hourly, daily, and weekly

consumption of electricity at Benson Hill Elementary.

Grid Navigator

What the top graph demonstrates are nine days of consumption that include a forecasted demand line, actual

demand in kilo watts (kW), and actual kilo watt hours (kWh). Notice the weekend usage at a fraction of daily

use. This reduction in usage is possible because of building controls virtually shutting down all non- essential

equipment at night and during the weekend. The bottom graph demonstrates hourly electrical consumption and

the rise of consumption during morning warm up, then leveling off during the day and then decreasing until the

custodian leaves at 10:30 PM at which time electrical usage flat-lines for the next seven hours until morning

warm up occurs. With the advent of a new demand limiting capability; the demand for electricity will be more

gradual during the morning warm up period which will save on high demand charges while extending the life of

expensive mechanical equipment.



Sub Metering cont.

At a glance the following district map shows kBTU per sqft. on a facility by facilty basis, with dark green the

best performing facility and the dark red the worst performing facility. This map is an energy management tool

that constanly ranks facilities based on performance, which give facility managers the ability to see the district

at a glance and determine which facilitys need closer monitoring. The kBTU per sqft. is an energy

measurement that includes both electrical and natural gas consumption.

Grid Navigator Electrical kBTU/SqFt. Map



Ongoing Resource Conservation Management Activities

LED Demonstration Pilot Project One of the energy grants that we were awarded targets all attached exterior lighting throughout the district for

replacement with energy efficient LED lighting. Because there were limited utility incentives and the cost per

fixture was exorbitant, the decision was made to wait a year and use that time to create a pilot project that

gave us the ability to test a variety of LED fixtures for light output, reliability, and cost. Now a year later we are

looking to take advantage of better pricing, a new PSE incentive program for LED’s, and enhanced lumen

levels. We are scheduling this project to take place during the 2012 summer construction season. The table

below shows the basic quantitative information relating to the LED wall pack fixtures. Our next annual report

will include an update about the reliability of the new fixtures and their energy saving performance. The fixtures

highlighted below are top candidates, and because we will purchase a large quantity the actual price per fixture

is expected to drop proportionally. The 12.8 W unit will be used above or next to exterior doorways, while the

higher wattage units will be used to replace inefficient exterior lighting for general exterior applications. Another

feature of the lighting project is lighting control, which will be another upgrade that we are planning to

implement where applicable. The lighting control panels will give us the ability to put the exterior lighting in

zones, set schedules, and have motion sensor interconnectivity.

LED Lighting Demonstration Project

@ the Facilities, Operations and Maintenance Center (FOMC)

Location Type Wattage Lumens / Watt 2011 Cost 2012 Cost

Westside Lighting Science 60 W 3600 lumens/60lpw $595.00 ea. $500.00

Southside Lighting Science 52 W 1500 lumens/60lpw $493.00 ea. S420.00

NE side Hubble 145 W 9425 lumens/65lpw $625.00 ea. $550.00 ea.

NW side Hubbell 12.8 W 800 lumens/64lpw $460.00 ea. $404.00 ea.

NW side Hubbell 20.6 W 1460 lumens/71lpw n/a $409.00 ea.

NW side Hubbell 31/71 W 2709 lumens/78lpw 4674 lumens/66lpw

$495.00 ea. $476.00 ea.

Eastside McGraw-Edison 53 W 3450 lumens/65lpw $688.00 ea. $600.00 ea.

Pole Light Kim retrofit 65 W 6850 lumens/52lpw $765.00 ea. $650.00 ea.



Ongoing Resource Conservation Management cont.

During the 2010-2011 school year the folks at Lakeridge ES worked diligently on solid waste

management practices as part of their efforts in the King County Green Schools program. In

May of 2011 the Green Schools program honored two Lakeridge ES staff as ―Earth Hero’s‖

and the school also achieved level one status. Two other schools achieved level one in the

Green Schools program, they were McKnight MS, and Lindbergh HS. Several more schools

were interested but were required to wait until a new funding cycle in late 2011.

(please see “Green Schools” link on the main Resource Conservation Management web page).

http://www.rentonschools.us/Departments/Energy_Resource_Conservation/KCGC

FOMC Web Page Development – Resource Conservation Management To make more visible the diverse activities in the Facilities Operations and Maintenance Center (FOMC), web

pages were created in 2010-2011 that include information about Capital Projects, Resource Conservation

Management, Maintenance and Operations, and Safety and Security. In the Resource Conservation

Management section there is a comprehensive overview, news links, program links, project links, document

links, and a generic email function that is an indicator that someone from the web site is making contact.

Please visit our page at the following address:

http://www.rentonschools.us/Departments/Energy_Resource_Conservation

Solar – Unanticipated Receipts Solar Demonstration projects at Dimmitt MS, and Hazen HS are part of a net metering program. The annual

power production for Hazen HS was just under 2,000 kWh’s for which we were compensated by PSE in the

amount of $301.50 The annual power production for Dimmitt MS was just over 3500 kWh’s for which we will be

compensated by SCL in the amount of $533.00 The compensation in 2011 was for power produced in 2010 at

Hazen HS and from April 2010 through August 2011 at Dimmitt MS. The rate of .15 cents per kWh is

mandated by State Bill SB-5101, and administered by the state Department of Revenue.

Utility Incentives – Unanticipated Receipts

Further collaborations with local electric and gas utilities has resulted in commitment for a $20,000 incentive for

upgrades in energy measures at the Hazen Addition, and a commitment for a $55,000 incentive for energy

upgrades at the Secondary Learning Center. It should be noted that these incentives will not be available until

utility engineers verify energy conservation measures (ECM) and associated savings. We were also awarded

our first energy incentive from Puget Sound Energy (PSE) totaling $16,352.00 for lighting projects that were

done 2010. We were also awarded our first energy incentive from Seattle City Light (SCL) totaling $7,090 on a

project that cost $15,150.00. We have also received notice from PSE regarding $44,162.00 in incentives for

addition lighting projects that were completed during this reporting period.

King County Surface Water Mgt. Waiver For the second year running, in collaboration with the Learning and Teaching office, the district received a

waiver in 2011 for $30,000 - this wavier was for facilities in unincorporated King County. Those facilities

include: Bryn Mawr ES, Campbell Hill ES, and Lakeridge ES, Dimmitt MS, and the FOMC. Thanks to our

friends in the Learning and Teaching Dept. for their valuable input!

http://www.rentonschools.us/Departments/Energy_Resource_Conservation/KCGC

http://www.rentonschools.us/Departments/Facility_Operations_And_Maintenance

http://www.rentonschools.us/Departments/Energy_Resource_Conservation



Capital Projects Collaborations

Throughout the course of the reporting period, additional opportunities involved collaborations on energy

aspects of the Hazen HS Addition, Memorial Stadium, the Secondary Learning Center, and the emerging Early

Childhood Learning Center. These collaborations begin as initial meetings in house, then with project

architects, and electrical and mechanical engineers in the pre-design, schematic design, and the design

development stage.

For the Hazen addition there were many energy aspects of the project that had already been decided. One

undecided factor was the heating system. An energy conservation project that was taking place at virtually the

same time as the Hazen addition included a boiler upgrade to the main buildings heating system. The new

additions heating load was taken into consideration when upgrading the boilers and it was determined that the

new boilers would have enough additional capacity to meet the heating load of the new addition. This resulted

in a major mechanical system savings that benefitted the project cost proportionally. The project engineers

also provided critical information to the utility so we could capture incentives that were available at the time.

The heating system upgrades, and utility incentives would not have been part of the equation without Office of

Resource Conservation collaboration. As a result of implemented energy conservation measures at Hazen

HS, the new addition is virtually running on conserved energy!

For the Memorial Stadium, there were collaborations to capture efficiencies in heating, hot water, effective-

efficient ventilation, controllable field lighting, and LED lighting throughout the facility. All these things are

contributing factors to minimizing energy consumption and maintenance. Employing field lighting software, the

district was able to bill outside users for their electrical usage which were initially unanticipated receipts.

For the Secondary Learning Center (SLC), there were a number of energy saving measures that were

recommended by project engineers that were new to the district. These measures were heat recovery, geo

thermal heat pumps, radiant heat, and passive solar. There were also water, and surface water management

recommendations that were new to capital projects that just needed district support to be realized.

The water and surface water recommendations were rainwater harvesting for irrigation and flushing, a number

of bio swales, and permeable concrete sidewalks – these conservation measures will help insure lower rates

from King County for surface water management at this site. Regarding the mechanical system

recommendations: the heat recovery was pretty standard and an easy decision for the district; the geo thermal

was another matter and took a lot of meetings and research to convince decision makers that this was a

worthwhile investment. We also met with Seattle City Light engineers numerous times to secure their

involvement in the project and get their commitment to provide incentives totaling over

$50,000. The passive solar is another first that will provide pre heating of supply water

thus giving the mechanical system a thermal boost, and will also contribute to the

overall savings of this hybrid system. The long term benefits of this type of system are

an estimated energy savings of 25-30% compared to a similar type of facility. In

considering the typical cost of heating this type of facility, 25% savings would be an

avoided cost of $20,000 annually. Additional collaborations involved energy efficient

exterior LED lighting, an active solar array, enhanced building controls, and a centrally

located energy ―Dashboard‖ information screen for real time energy and resource

monitoring for building occupants.

Seattle City

Light has

committed to

provide over

$50,000 in

incentives for

the SLC.



Collaborations cont.

For the emerging Early Childhood Learning Center (ECLC) a number of energy saving measures were

collaborated on with project engineers that include: a potential geo thermal heating/cooling system, lighting

controls and daylight harvesting, energy management systems, interior and exterior lighting, and radiant

heating in all of the classrooms. One of the most interesting recommendations was the introduction of LED

lighting in the classrooms. There are many benefits for this type of technology, beginning with an energy

savings from 1.1 Watts per square foot to .6 Watts per sq. ft., the challenge will be to get the utility to cover the

incremental cost of doing this type of measure. In regards to the geo-thermal system, there has been so much

demand for geo-thermal that the cost of a vertical well has gone from $6-8 thousand per well to $10-12

thousand per well. At that price the law of diminishing returns demands another system be considered. We are

actively working with project engineers, and utility engineers to obtain the best performing building possible.

Emerging Project Activity

One primary characteristic of energy management is to audit a facility to identify inefficiencies, analyze and

rank those targets, and implement energy saving measures that have the best return on investment. We

currently are under contract with an Energy Service Company (ESCO) that has a commissioning agent

performing re-commissioning at the majority of our facilities. Collaborating with the utilities, we are following a

prescriptive path that when verified will cover the cost of the re-commissioning process and pay a bonus when

we implement the conservation measures that they recommend. The funding to implement energy

conservation measures was written into the ESCO contract, as was a per facility fee for the re-commissioning.

So several things are in play here: we benefit by having a certified commissioning agent do a detailed energy

audit and analysis of fifteen (15) facilities throughout the district that are our biggest energy users; by following

the utilities prescribed path the utility pays for the re-commissioning, which would result in a deductive change

order from the ESCO to be applied to other projects. The implemented energy conservation measures will be

from funded by funds set aside that are partially from state energy grants and the 2008 bond. Our primary

target is electrical demand limiting in the majority of district facilities that could provide an annual savings of

$100,000-$200,000. Currently the reason why our demand charges are so costly is that we have a morning

warm up period when all of the electrical systems energize with in the same time period causing a spike in

electrical demand. This spike in demand is recorded by the utility and the district is then penalized. Over the

past twenty plus years millions of dollars have been spent for electrical demand charges that could have been

avoided if control system demand limiting would have had been in place. We’ve been told that the re-

commissioning and demand limiting strategy is currently only being done in the Renton School District, this is a

common commercial energy management practice and one that will benefit the districts operation’s budget for

years to come.

Other emerging project activity is a window replacement project at Nelsen MS (replicating the Dimmitt MS

project), lighting upgrades in the rest of our facilities that were not covered in phase one, LED parking lot

lighting and control upgrades throughout the district, mechanical system upgrades on critical components that

have exceeded their rated life, and building control system upgrades that include integration with ―Energy

Dashboards‖ that will make visible to building occupants a wide assortment of energy data bringing energy

awareness to a whole new level. To further involve building occupants, we will use the Energy Star program to

also help heighten awareness and allow for a level of pride in conservation and efficiency that has not been

actively pursued at the facility level in the past.



Addendum A.

RCM Program Evaluation - Year 1




Note: SCL data has also been included in the evaluation and analysis of the resource conservation efforts



Addendum B.

renton school · pdf filethe renton school district’s ... dimmitt ms 109,070 $0.89 916...

Documents