The first public review draft on “Standard method for evaluating zero net energy and zero net carbon building performance” is released by ASHRAE on April 2021. This BSR/ASHRAE Standard 228P shall be used to identify if a site has achieved zero net energy and zero net carbon status by accounting the energy/carbon flow into a site boundary, which is to be less than /equal to the outwards energy/carbon flow during building/site operation for net zero. This standard will cover existing buildings, new buildings, groups of buildings, or portions of buildings. Evaluation with the help of this standard can identify if a site is meeting the requirements of zero net energy or zero net carbon. Read more