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Building Metering & Benchmarking: It’s Worth the Energy American University Emily Curley, Sustainability Coordinator Chris O’Brien, Director of Sustainability April 16, 2013
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2 AU Office of Sustainability: Staff
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3 Strategic Plan Goal #7: “Act on our values through social responsibility and … an active pursuit of sustainability...” AU Office of Sustainability: Vision
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4 ACUPCC Carbon Neutral by 2020 LEED Certify 25 Existing Buildings STARS Achieve a Platinum Rating Mayor’s College & University Sustainability Pledge Comprehensive Sustainability Plan Driving Frameworks
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Climate Action Plan 5 Reduce Consumption Produce Renewable Energy on CampusPurchase Renewable EnergyPurchase Offsets
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6 AU Greenhouse Gas Emissions
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7 Benefits of Increasing Energy Savings Comply with DC Green Building Act Reduce utility costs (electric, gas, water, chemical) Reduce operations & maintenance (labor, equipment) Reduce reliance on RECs and Offsets Fulfill Presidents Climate Commitment Improve occupant comfort Earn LEED recognition
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LEED Checklist – Existing Buildings
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9 Energy Efficiency & Occupant Comfort Studies 1 show that Energy Star rated & LEED certified buildings: Increase productivity by 1%-5% Increase employee morale Reduce turnover Improve recruitment Reduce allergic reactions and stress 1 CBRE & University of San Diego, 2009; McGraw-Hill, 2009; Michigan State, 2009; http://www.institutebe.com/Existing-Building-Retrofits/Productivity-Gains-from-Energy-Efficiency.aspx
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10 Energy Saving Strategies Install meters 25 ASHRAE level I audits $1.2m energy-saving projects complete Library Lighting Butler Tunnel Lighting Arena Lighting ASHRAE level II audits: Bender Library, Katzen, MGC, Sports Center, Ward Circle
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11 Case Study: Bender Library 117,940 gsf with electricity, district steam & chilled water, solar PV 5 th largest energy using building on campus
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12 Case Study: Bender Library Results not so encouraging… LEED requires ENERGY STAR score of 19 or source EUI 19% better than national average
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13 Bender Library Energy Savings ASHRAE Level II Audit Identified ECMs:
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Have since completed relighting/delamping project in Library for additional low-cost savings On target to meet prerequisite pending improvements Bender Library Performance After 14
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15 Case Study: Katzen Arts Center 3 rd largest energy using building on campus 335,476 gsf with electricity, natural gas, solar PV Large parking garage = 60% of total area Museum and performance space = 20% Art “lab” space = 10%
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16 Case Study: Katzen Arts Center Special case for LEED given difficulty of comparison with other buildings LEED requires source EUI 19% better than 3 year historical baseline average
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17 Katzen Energy Savings ASHRAE Level II Audit Identified ECMs:
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Identified ECMs together reduce consumption to LEED prerequisite level Katzen would qualify for 1 additional LEED point with new total Katzen Art Center Performance After 18
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19 Target Campus Energy Use* LEED compliance level = 69th percentile * 25 targeted existing buildings.
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20 Target Annual Cost Savings 1 1 25 targeted existing buildings. 2 Assumes savings in proportion to current electric/gas consumption (56% electric/44% gas). Total savings range is based on splitting savings from 33% electric & 67% gas, to 67% electric & 33% gas. Fiscal Year 2
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21 Financing Options 1.Invest $8-$10M, 8-10 yr payback a.$3.3M/yr for 3 yrs b.Increase energy project funding from $700k/yr to $1.7/yr for 6 years i.Consider revolving fund 2.Third Party Financing – $0 cost to AU but cost savings are minimized
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22 Next Steps -RFQ for energy conservation measures -Determine financing & contracting approach -RFPs for design & construction -Finalize contracts & financing -Implement projects
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23 Lessons Learned Building-level metering is teaching us which buildings consume the most energy and cost the most to operate Energy benchmarking is teaching us which buildings are the most inefficient relative to buildings like it Energy auditing is teaching us that making investments in energy efficiency are often financially prudent and allow us to meet our environmental goals
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24 Thank you! sustainability@american.edu sustainability@american.edu www.american.edu/sustainability www.american.edu/sustainability Twitter.com/GreenAU facebook.com/GreenAU
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