Information on making buildings more energy-efficient, including conserving electricity, natural gas and water, and efficient heating and cooling.
New Energy Efficiency Laws Take Effect for 2020
Every three years, the California Energy Commission (CEC), which is responsible for developing the state’s energy efficiency standards, updates regulations for buildings in California. Changes made in 2019, which took effect January 1, 2020, bring some big changes in the requirements for new construction. Most New Homes Must Have Solar Systems California is the first