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Building Metering & Benchmarking: It’s Worth the Energy American University

Building Metering & Benchmarking: It’s Worth the Energy American University Emily Curley, Sustainability Manager VCU Energy & Sustainability Conference February 12, 2014. AU Office of Sustainability. AU Facilities Management.

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Building Metering & Benchmarking: It’s Worth the Energy American University

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  1. Building Metering & Benchmarking: It’s Worth the Energy American University Emily Curley, Sustainability Manager VCU Energy & Sustainability Conference February 12, 2014

  2. AU Office of Sustainability

  3. AU Facilities Management • Operate and maintain safe and reliable utility services for campus facilities • Drive the University towards intelligent and sustainable energy usage • Promote awareness of engineering requirements and decision making based on facility life cycle costs

  4. AU Office of Sustainability: Vision Strategic Plan Goal #7: “Act on our values through social responsibility and … an active pursuit of sustainability...”

  5. Driving Frameworks

  6. Climate Action Plan

  7. AU Greenhouse Gas Emissions

  8. LEED Checklist – Existing Buildings

  9. 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

  10. Case Study: Bender Library • 117,940 gsf with electricity, district steam & chilled water, solar PV • 5th largest energy using building on campus

  11. Case Study: Bender Library • Lots of room for improvement… • LEED requires ENERGY STAR score of 69 or source EUI 19% better than national average

  12. Bender Library Energy Savings • ASHRAE Level II Audit Identified ECMs:

  13. Bender Library Performance After • Completed relighting project for additional low-cost savings winter 2012 • HVAC projects (VFDs, controls, replacement AHU) completed summer 2013 • Already saved 23%, on target to meet prerequisite

  14. Target Campus Energy Use* LEED compliance level = 69th percentile * 25 targeted existing buildings.

  15. Target Annual Cost Savings 25 targeted existing buildings. Assumes savings in proportion to current electric/gas consumption

  16. Next Steps • Determine financing & contracting approach • Invest? Revolving loan? 3rd party financing? • RFQ for energy conservation measures • RFPs for design & construction • Finalize contracts & financing • Implement projects

  17. 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 investments in energy efficiency are often financially prudent while allowing us to meet our environmental goals

  18. Thank you! • sustainability@american.edu • www.american.edu/sustainability • Twitter.com/GreenAU • facebook.com/GreenAU

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