energy assessments, retro-commissioning and technical support eileen westervelt | pe | cem sedac,...
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ENERGY ASSESSMENTS, RETRO-COMMISSIONING AND TECHNICAL SUPPORT
Eileen Westervelt | PE | CEM
SEDAC, Program Director, Retro-Commissioning
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EEPS STRUCTURE
SEDAC
ComEd Ameren Illinois
Nicor Gas Peoples/North Shore
Ameren Illinois
Electric Efficiency (75% of $)
Gas Efficiency (75% of $)
DCEO
Electric Efficiency Gas Efficiency
(25% of $)
Private Sector Businesses Residential Non-profits
Private Sector Businesses Residential Non-profits
Public Sector Governments K-12 Schools Community
Colleges Public Universities
Low-Income Residential
Affordable Housing PHAs
Implementation Agencies
• IL legislation sets EE goals for utilities, allows riders• Utilities provide services/incentives to Private Sector• Portion to DCEO – sponsors SEDAC, EE incentives to Public and Low Income Residential Sector• SEDAC serves both Public and Private Sectors
…Partners coordinating for efficiency
Energy Assistance and Assessments
Phone help, Anytime!
<15,000 sf - phone assistance
15,000-20,000 sf - depends on EUI
>20,000 sf - assessment level varies depending on need
New Construction Design Assistance
Retro-Commissioning (Public Sector)
Full RCx - >150 ksf, large facility, high savings potential
Mini RCx – smaller, quick look at controls
Dashboards – RCx clients who want to continue to track
Presentations
Publications
Case Studies
Fact Sheets
Newsletters
Website sedac.org
..to improve the effectiveness of energy use in IL
SEDAC SERVICES
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 Fluorescents– Exterior LEDs– Reduce wattage linear fluorescents
• Install VSDs on pool pumps• Vending misers• Thermostat setbacks
Recommended but not included in savings…• Install pool covers• Pool dehumidification / heat recovery• Daylighting controls• Ozone laundry
ENERGY ASSESSMENTS
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City of Decatur – Civic CenterBuilding 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!
Implemented Strategies
Adjust fan system schedule
Boiler system measures
Operation of VFDs
Minimize reheat
Improved lighting control
DCV
RCX
0
10
20
30
40
50
60
70
80
90
0
500
1,000
1,500
2,000
2,500
149
999
714
9519
9324
9129
8934
8739
8544
8349
8154
7959
7764
7569
7374
7179
6984
6789
6594
6399
6110
459
Tem
p. (F
) and
Rh
(%)
CO2
ppm
CO2
Rel. Humidity
Temperature
Sept. 3
Public LibraryBuilding Type LibrarySquare Footage 95,568 sfRCx Study Cost (paid by DCEO)
$0 to Owner
Implementation Cost
$10,797
Annual Energy Savings
172,804 kWh, 10,394 Therms
Annual Energy Cost Savings
$26,739
% Cost Savings 14%Payback 0.40 years
… Repair and control of existing equipment
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NEW CONSTRUCTION DESIGN ASSISTANCE
Recreation Center• Recommended Strategies beyond code:
• Install demand control ventilation throughout facility• Increase efficiency of mechanical systems• Utilize higher performance glazing• Add air sealing to building specifications• Further reduce lighting power density
• Recommended Best Practices:• Building Automation System• Full building commissioning• Bi-level switching in stairs
51% Energy Cost Savings (vs. ASHRAE 90.1-2007)
Potential of$63,969 in DCEO incentives!
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NEW CONSTRUCTION INCENTIVES
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
SEDAC services remain free to the customer
Clients assisted (as of June 22, 2014): 1,507 energy assessments
RCx program 97 RCx Analyses completed
Trade Allies – SEDAC can: Assist in verifying data
Answer program questions
Provide additional services to your clients
SEDAC’S FACTS
Fun Facts!
Completed studies of over 158
million sf with an additional 8.9
million sf underway Recommended energy
savings of $54.8 M annually Typically identify 10-49%
annual cost savings! Nearly half of recommended
measures have simple
payback of 3 years or less!
SUMMARY
12Illinois Energy Now | 1-800-214-7954 | www.ILenergynow.org
• SEDAC is in place to help identify cost effective energy efficiency solutions for buildings in Illinois
• Trade Allies use this as a “next step” for their clients, for ID of additional opportunities
• Many owners who have taken advantage of these programs.• Get your buildings involved in these programs!
▪ Energy Assessments▪ Retro-Commissioning▪ New Construction Design Assistance
Apply to SEDAC today!
www.SEDAC.org1-800-214-7954