new horizon energy audit tools
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www.esource.com Thursday, October 17, 2013
New Horizon Energy Audit Tools
Virtual Energy Audit Tools
Andrea Salazar
Senior Research Associate, E Source
Rocky Mountain Association of Energy Engineers
14th Annual Energy Forum
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Presentation Outline
What is a virtual energy audit?
Why do a virtual energy audit?
What products are being offered?
Who is using these tools?
What are the results?
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The Dawning of the Age of Analytics
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What Do You Mean, A “Virtual” Audit?
© E Source
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This Quote Sums It Up Nicely…
“Instead of putting boots on the ground at each and every one of your facilities, virtual audits use software to collect meter data, weather information, GIS mapping, information about similar buildings, & other publicly available information. Then, all of that data is pushed through fancy algorithms written by smart people that likely went to MIT or CalTech or other schools where super-geniuses go to do interesting things. Once that is complete, you get a bunch of insights about your portfolio’s performance & recommendations for where to focus on implementing energy-efficiency measures that will deliver the greatest impact.” ~ Sarah McAuley, EnerNOC
From Greentech Media’s article, Virtual Energy Audits: Industry Fad or the Next Big Thing?
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Virtual Audits Versus On-Site AuditsIt would take 1,000 energy auditors working 24
hours/day, 365 days/year for 13 years to assess the U.S. commercial building stock.
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A Scalable Way to Screen Large Portfolios
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Who are the players?
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Some Examples
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Some Examples
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Some Examples
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Who’s Using These Tools?
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Who’s Using These Tools?
“By using Retroficiency, engineers at CBRE spend just one day at the building
site, and within 24 hours, they issue a ‘good looking’ report to the customer. Before Retroficiency, engineers spent
several days on site.”
~ Gary Hosgett, Global Energy & Sustainability Program Manager, CBRE
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Results
• Cadmus Group field trials: – Compared FirstFuel to ASHRAE Level II audit– Recommendations were consistent with on-
site results– End-use disaggregation values were within
10% of on-site calculations– Results achieved at a fraction of time and cost
of on-site engineering analysis and metering
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Results
• Fraunhofer Center for Sustainable Energy Systems field test: – FirstFuel’s end-use values averaged within 8%
of building submeter values
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Results
• Pacific Gas & Electric (PG&E) Field Trial: – 8% average difference in energy cost savings
opportunities found from on-site audits vs. FirstFuel
– End-use breakdowns differed by average of 7%
– FirstFuel audits more than 3 times faster than on-site audits
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Further Reading• Using Data Analytics in Zero-Touch Building Energy Assessments, GreenTech Advocates,
2013• What Makes an Effective Virtual Energy Audit, Greentech Media, 2013 • The First Fuel Is Efficiency, MIT Technology Review, 2012 • When Do Energy Auditors Get to Eat and Sleep?, GreenBiz.com, 2013• The Science Behind Virtual Energy Audits Versus Traditional Audits, Greentech Media, 2013• EnerNOC Gives a Vote of Confidence to Virtual Auditing, Greentech Media, 2013• Half of Energy Savings Reside in Low- or No-Cost Operational Changes, Energy Manager
Today, 2013• Why Virtual Audits Don’t Go Far Enough, Greentech Media, 2013• 10 Ways Big Data Is Remaking Energy, Gigaom, 2012• What If Energy Efficiency Is Even Easier Than We Thought?, Streetwise Media, 2013• Operational Improvements Can Double Energy Efficiency Savings in Commercial Buildings,
Business Wire, 2013• Which Is Better for Efficiency: Retrofits or Behavior Change?, Greentech Media, 2013• WegoWise Identifies $137M in Savings for Low-Income Housing, Greentech Media, 2012• 13 Energy Data Startups to Watch in 2013, Gigaom, 2013• Retroficiency, CLEAResult, Clear the Path to Building Energy Efficiency, Greentech Media,
2012
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Andrea Salazar
Senior Research Associate, E Source
303-345-9189 [email protected]
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