Since 2012, the number of commercial zero net energy (ZNE) buildings have more than doubled according to the New Buildings Institute. The report, 2014 Getting to Zero Status Update, says that 213 North American structures qualify, up from 99 in the initial report.
ZNE verification of buildings is based on a review of one-year of measured energy data including building energy consumption and renewable energy production, or other valid documentation from a third-party entity.
The NBI had identified and verified 33 ZNE projects including 32 buildings and one district (a group of buildings), an additional 127 projects that were working toward ZNE but did not have a full year of energy use yet to verify net-zero, and 53 buildings that had verified high levels of efficiency comparable to zero net energy performance, but without sufficient onsite renewable generation, for a grand total of 213 buildings.
Key report findings include:
Source: Energy Manager Today