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California’s Commercial Building Energy Asset Rating System (BEARS). April 8 th 2013. Acknowledgements. An E nergy Asset Rating…. …evaluates the energy efficiency potential of a building. An E nergy Asset Rating….
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California’s Commercial Building Energy Asset Rating System (BEARS) • April 8th 2013
An Energy Asset Rating… …evaluates the energy efficiency potential of a building
An Energy Asset Rating… …evaluates the energy efficiency potential of a building based on its construction, installed energy-consuming systems, and renewable energy systems.
An Energy Asset Rating… …evaluates the energy efficiency potential of a building based on its construction, installed energy-consuming systems, and renewable energy systems. Energy asset rating should not be considered an estimate of a building’s actual energy use
An Energy Asset Rating… …evaluates the energy efficiency potential of a building based on its construction, installed energy-consuming systems, and renewable energy systems. Energy asset rating should not be considered an estimate of a building’s actual energy use, rather it is designed to give the owner an idea of the energy efficiency potential of the building independent of the way the building is currently operated.
An Energy Asset Rating… …evaluates the energy efficiency potential of a building based on its construction, installed energy-consuming systems, and renewable energy systems. Energy asset rating should not be considered an estimate of a building’s actual energy use, rather it is designed to give the owner an idea of the energy efficiency potential of the building independent of the way the building is currently operated. This perspective enables a reasonable comparison of a building’s energy efficiency potential to other buildings.
Which is Getting Better MPG? ~20 MPG ~100 MPG http://www.curbsideclassic.com/auto-biography/the-great-american-anti-towing-conspiracy/ http://tourismplacesworld.blogspot.com/2011/08/worlds-steepest-street.html
Which is More Efficient? 50 MPG 20 MPG 20 MPG 50 MPG http://tourismplacesworld.blogspot.com/2011/08/worlds-steepest-street.html http://blacktagdiaries.blogspot.com/2010/06/sad-day-for-prius.html
Role of an Asset Rating Real estate transactions Inform policy goals Demonstrate benefits of energy efficiency Prioritize energy efficiency investments
Data Collection Considerations Sensitive Parameters Non-Sensitive Parameters
DOE Reference Buildings EnergyPlus ASHRAE 90.1 and 62.1 16 building types Represents 70% of the commercial building stock http://apps1.eere.energy.gov/buildings/energyplus/openstudio.cfm
Data Collection Testing 5 sites • Café • Two Office Buildings • Quickserve Restaurant • Grocery Store
BEARS Certificate 2012 PROTOTYPE: NOT FINAL
Future of BEARS Testing Refine framework Develop assessor training Develop BEARS software tool Grow scope to include more buildings
BEARS provides a new way of thinking about the value of a building’s permanent assets, and creates a more robust link between energy efficiency and property value
Kevin Campbell kcampbell@peci.org 503-575-4169