found: Work cat: Zero energy office, 2021
found: Living-future.org web site, viewed Oct. 19, 2021(Zero energy is recognized worldwide as one of the highest aspirations in energy performance in the built environment)
found: Wikipedia, September 27, 2021(A Zero Energy Building (ZEB), also known as a Net Zero Energy (NZE) building, or a Zero Net Energy (ZNE) building, is a building with net zero energy consumption, meaning the total amount of energy used by the building on an annual basis is equal to the amount of renewable energy created on the site or in other definitions by renewable energy sources offsite, using technology such as heat pumps, high efficiency windows and insulation, and solar panels)
found: Energy.gov web site, viewed Dec. 10, 2021(A Common Definition for Zero Energy Buildings: An energy-efficient building where, on a source energy basis, the actual annual delivered energy is less than or equal to the on-site renewable exported energy. That is, a zero energy building produces enough renewable energy to meet its own annual energy consumption requirements, thereby reducing the use of nonrenewable energy in the building sector)
