The U.S. Department of Energy (DOE) announced a National Definition of a Zero Emissions Building on Thursday, aimed at accelerating efforts to decarbonize the buildings sector. This sector is responsible for over one-third of total greenhouse gas emissions in the United States. The DOE’s definition serves as industry guidance for both new and existing commercial and residential buildings to achieve zero emissions across all aspects.
According to U.S Secretary of Energy Jennifer M.Granholm, this definition will support the advancement of innovative solutions necessary for creating resilient communities and high-quality jobs. She also stated that it brings clarity to public and private partners, aiding in decarbonization efforts while driving investments.
Part 1of this multi-faceted definition was unveiled by DOE during the announcement, focusing on operational emissions from energy use. At its core, a zero-emissions building must be energy-efficient with no onsite emission from energy usage while being powered solely by clean energy sources. Future parts may address embodied carbon emissions (from producing materials), minimizing refrigerant impacts, among other considerations.
It should be noted that this National Definition is not intended as regulatory standard but rather as guidance for public and private entities seeking to determine if their building meets zero-emission standards regarding operational energy use – including tenant-related activities.
