California Writing Energy Codes that May Affect Cannabis Cultivation and All “Controlled Environment Horticulture”

How your business can get involved


As part of its 2022 code cycle, the California Energy Commission is reviewing proposals aimed at saving energy and water while maintaining crop quality and production volume for crops grown in non-stacked and stacked indoor farms. 

Long story short: The proposed regulations could affect essentially all cannabis cultivators, from indoor to greenhouse, even sungrown where lighting and dehumidification are used in some stages of plant growth. Proposals include:

For all grow environments:

  • Lighting minimum efficacy

For indoor grow environments:

  • Environmental & irrigation controls
  • Efficient dehumidification & reuse of transpired water
  • Circulation fan minimum performance requirements

RII is pleased to partner with the California Cannabis Industry Association and other stakeholders to provide a direct engagement opportunity with code proposal writers at the Indoor Agriculture Energy Solutions conference in San Diego, Feb. 24-26. 


To enable growers of all sizes and types to lend their important voice to the stakeholder engagement process, RII is offering a special discount rate. Cultivators can go to and enter promo code IAESgrower2020.


The efforts are part of the 2022 update cycle of Title 24, Part 6, Building Energy Efficiency Standards. The Statewide Codes & Standards Enhancement (CASE) Team will consider the plant growth requirements for the following crops in the evaluation of the proposed measures: cannabis, microgreens, vegetable transplants, basil (representing herbs category), lettuce (representing leafy greens category), tomatoes (representing vine plants category), and roses.


For more information on the process, go to