New Standard 90.4-2022 Updates ELC Requirements and Adds Renewable Energy and Recovered Energy Credits Newly revised Standard 90.4 includes changes to account for existing circumstances in building projects and improvements in equipment effi ciency, as well as changes to incentivize deployment of renewable energy and recovered energy while still requiring the use of energy-effi cient mechanical and electrical systems. ashrae.org/90.4http://www.ashrae.org/90.4