LED mandate could cost California’s indoor marijuana growers millions

Many California marijuana growers are up in arms over a recent proposal before the state Energy Commission that would require all indoor cultivation operators to use only LED lights by 2023. If implemented, the proposal could cost cannabis businesses hundreds of millions of dollars, the growers say.

The proposal is part of a lengthy report issued this month by the Codes and Standards Enhancement (CASE) Program. It would force indoor growers to transition away from lower-efficiency grow lights, such as metal halide or high-pressure sodium (HPS).