Following a mandate that took effect last year requiring new single-family homes and multi-family buildings up to three stories in California be built to incorporate solar photovoltaic systems, state regulators have now voted to make solar–as well as battery storage systems—compulsory at both newly constructed and renovated high-rise residential developments and commercial buildings. That includes offices, schools, retail stores, restaurants, medical buildings, various types of civic spaces, and more.
Approved unanimously by the five members of the California Energy Commission (CEC), the new rules, if adopted by the California Building Standards Commission (CBSC) as anticipated, would go into effect starting on January 1, 2023. The CBSC is expected to vote
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