Planning for Federal Sustainability in the Next Decade, Executive Order 13693, 19 March 2015 established that nZEB (net-zero energy building) in the United States will be used to maintain leadership in sustainability and greenhouse reductions.
“Net-zero energy building” means a building that is designed, constructed, or renovated and operated such that the actual annual source energy consumption is balanced by on-site renewable energy.
“An energy efficient building” where, on a source energy basis, the actual delivered energy is less than or equal to the on-site renewable energy.
“On-site renewable energy” includes any renewable energy collected and generated within the site boundary that is used for building energy and the excess renewable energy could be exported outside the site boundary. The renewable energy certificates (RECs) associated with the renewable energy must be retained or retired by the building owner/lesseee to be claimed as renewable energy.
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