funding whole-building energy savings...
TRANSCRIPT
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Funding Whole-Building Energy Savings Projects
Therese DorauDirector of Sustainability, City of South Bend
April 25, 2018
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Energy Savings Performance Contract (ESPC)
Comprehensive
20% Savings
Low up-front cost
Turnkey Solution
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ESPC Measures• Common: Lighting, HVAC,
motors/pumps, controls, retrocommissioning
• Advanced: Renewables, energy storage, load control
• Cheap: rate analysis; tweaks to controls, settings, schedules
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Benefits of ESPC
• Typically fixed-price contracts• Includes thorough building and utility bill assessment• Ideal for inefficient, high-maintenance, or fail-risk
equipment (but newer buildings benefit too)• ROI of $$$ repairs can be more affordable “packaged”
in a performance contract (requires some capital) • Contractor guarantees equipment’s performance and
energy savings for 10+ years• Project costs spread over time • Some/all project costs paid from guaranteed savings
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Public-Sector ESPC
• ESPC = GESC• “Guaranteed Energy Savings Contract”
• IC 36-1-12.5 “ Guaranteed Savings Contracts; Energy Efficiency Programs Used by School Corporations”
• Not just schools but…• Public libraries, public water/wastewater utilities, any
other political subdivisions• City of South Bend, St. Joseph County, St. Joseph County
Airport Authority
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Public-Sector ESPC
• Flexible procurement method• Based on priorities, not lowest price• Determine scope collaboratively• Opportunity for non-energy work (15%)• ESCO is general contractor, selects subcontractor
• Pay with low-interest lease or bond• Attract “green” investors• Can sometimes get tax benefits (passed thru from
lender)
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Performance Contracting Process
AdvertisedRFQ
Professional Services Construction
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Century Center Project Scope
• Roof replacement• Lighting & controls• HVAC components & controls• Ceiling tile (as part of lighting)• Solar photovoltaic (24 kW)• Timeline: 18 months
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Century Center Project Costs and Financing• Project total: $4,926,784
• Paid from savings?• Energy savings• Maintenance savings• Avoided costs
• Financing sources• Capital improvement funds • Hotel-motel tax funds • Energy-specific bond
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Year 1 Project Results
ECMGuaranteed
Energy Savings Actual Energy
Savings
ECM 1 - Roofing Replacement $1,645 $1,694 ECM 2 - Lighting Replacement $20,805 $23,724 ECM 3 - Lighting II - Upgrades $12,803 $14,371 ECM 4 - HVAC System Upgrades $47,015 $53,807 ECM 5 - HVAC Control System Upgrades Included in ECM 4 $0 ECM 6 - Ceiling Tile Replacement and Upgrades $0 $0 ECM 7 - Install Solar PV $1,737 $2,303
Total Energy Savings $84,004 $95,899 Operational Savings $6,500 $6,500 Capital Cost Avoidance Savings $362,936 $362,936
Total Savings $453,440 $465,335
Year One Actual Savings
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$96,000 1st-yr
ENERGYsavings
28,000kWh Solar
Energy Generated
$89,000Utility
Rebates
1.17 MWh Saved
95 Homes “Off the
Grid”
14% Above Guarantee
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Questions?