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The Department of Energy (DOE) issued a request for information seeking a common definition for Zero Energy Buildings (ZEB). The goal is to create a broadly accepted definition of ZEB boundaries and metrics to create a standard that regulators and private entities can agree upon. 

There is currently little consensus on a definition for ZEBs and the agency hopes that creating a common definition will help create greater market uptake of these projects. The public has until Feb. 20 to submit written comments which can be submitted by going to

DOE plans to publish a report on ZBE definitions in 2015.