1. 2 CASE STUDY NEW CONSTRUCTION PUBLIC SECTOR Case study by SEDAC What they got… ▪Prescriptive Incentive for individual measures. ▪They did not model.

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CASE STUDIES

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CASE STUDYNEW CONSTRUCTION PUBLIC SECTOR

Case study by SEDAC

What they got…

▪ Prescriptive Incentive for individual measures.

▪ They did not model the building due to costs constraints

What they did…New 39,115 recreation center▪ Increased roof and wall R-values▪ Reduce lighting power density by

almost .3 W/sf▪ High Efficiency GSHP

Park District

Building Type Recreation Center

Energy Measures Lighting, HVAC, envelope, DHW

Annual Energy Savings $10,643

Incremental Cost $57,152

Total DCEO Incentives $77,467

Simple Payback 5.3 years

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CASE STUDYNEW CONSTRUCTION PUBLIC SECTOR

Case study by SEDAC

What they got…

▪ Incentive for 18% beyond code

What they did…147,867 sf addition and renovation▪ Improved lighting▪ Improved envelope▪ High Efficiency HVAC

High School

Building Type K-12

Energy Measures Lighting, HVAC, envelope

Annual Energy Savings $9,061

Incremental Cost $34,137

Total DCEO Incentives $110,336

Simple Payback 3.7 years

TENNIS COURTS/POOL

Indoor Tennis and Pool

Building Type Park DistrictEnergy Measures Lighting, HVAC, DHW,

plug loadsAnnual Energy Savings $27,941Total DCEO Incentives $60,000Total Project Cost $55,000 (after incentives)Payback 1.9 years

Recommended…• Lighting upgrade

– MH to high bay– Exterior LEDs– Reduce linear wattage

• Install VSDs on pool pumps• Vending misers• Thermostat setbacks

Recommended buy not included in savings…• Install pool covers• Pool dehumidification / heat recovery• Daylighting controls• Ozone laundry

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MULTIPLE RETROFITSCivic Center

Building Type Municipal Civic Center

Energy Measures Lighting, Occupancy Sensors, Boiler Pump Controls, Chiller Water Pump, Sequencing

Total Project Cost $308,550

EECB Grant $283,054

Total DCEO Incentives $25,496

Final Project Cost $0

Annual Energy Savings $60,000

Payback 0 years

Funding…• DCEO Illinois Energy Now• Conservation Block Grant from

American Recovery and Reinvestment Act

• Fully funded

ELEMENTARY SCHOOL

Elementary School

Building Type K-5 SchoolEnergy Measures HVAC, lighting, windows, occ

sensors, controlsAnnual Energy Savings $16,933Total DCEO Incentives $29,800Total Project Cost $138,801Payback 6.4 years

What they did…• Replaced

existing boiler and chiller

• New windows• Retrofit lighting• Occupancy

sensors• Air sealing

ELEMENTARY SCHOOLWhat they did…• New Geothermal• New windows• Retrofit lighting• Occupancy sensors• Air sealing (not

completed yet)

Elementary School

Building Type K-5 SchoolEnergy Measures HVAC, lighting, windows, occ

sensors, controlsTotal Project Cost $618,501Total DCEO Incentives $35,393Final Project Cost $583,108Annual Energy Savings $19,587Payback 29 years

Why high payback was acceptable.• Previously heated with boiler and

unit ventilators• Boiler needed to be replaced• They wanted air conditioning• Windows at end of life

ARENA

Arena

Building Type RecreationEnergy Measures Lighting, hot water, VFDs,

heat recovery, RCxAnnual Energy Savings $106,132Total DCEO Incentives $131,000Total Project Cost $150,366Payback 1.4 years

Recommended…• Lighting

– Metal halide to high bay– Bi-level lighting– Retrofit T12s

• LED exit signs• High efficiency boiler• VFD on water pumps

and cooling tower• Waste heat recover on

ice refrigeration process• Retro-commission

• Incentive funding is available for most any energy efficiency project• Illinois Energy Now services are free!• Structures are in place to help you learn cost effective strategies

for implementation• There are many examples of other owners who have taken

advantage of these programs.• Get your buildings involved in these programs!

▪ Energy Assessments▪ New Construction Design Assistance▪ Retro-Commissioning

Apply to an Illinois Energy Now program today!

www.SEDAC.org1-800-214-7954

SUMMARY

Illinois Energy Now | 1-800-214-7954 www.ILenergynow.org

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