Skip to main content
Project Info COMPLETE Project Title

Greenhouse Lighting Controls

Project Number ET22SWE0027 Organization SWE (Statewide Electric ETP) End-use Lighting Sector Residential Project Year(s) 2022 - 2023
Supplemental lighting in greenhouses uses significant electricity, and lighting controls that regulate supplemental lighting based on the amount of natural light available should be encouraged in the market. This project would extend a study currently being done by PG&E on the potential for adaptive daylight controls to save energy in commercial greenhouses. The site has already produced six months of data which suggests that in winter months, the technology could reduce energy costs by 25%-35% and the payback period could be as short as two months. This project could be completed this year and would be extremely cost effective because it would leverage a large amount of existing work. Should results continue to be promising, CalNEXT would have the option to expand the study to more sites and crops to support a potential measure package. Although initial results from the ongoing study are highly promising, that study only includes one site with a single crop and will have little data on impact to crop yield and quality. This is due to the extreme difficulty of enrolling sites. The lack of proof for the technology is itself the main barrier to collecting proof. Extending the current study into December could generate enough proof of effectiveness to greatly reduce this barrier. The research questions that this study would answer by December 2022 would be: a. At the specific site where advanced lighting controls were installed for the PG&E study, what is the likely payback period? b. What further research would be needed to address key grower concerns about this technology, such as ease of use and potential effects on quality and yield?
Project Report Document
Loading PDF Preview...
I have read and accept the Privacy Policy and Terms of Use
  • Pacific Gas & Electric Company logo
  • Southern California Edison Company logo
  • Southern California Gas Company logo
  • San Diego Gas & Electric Company logo
  • Sacramento Municipal Utility District logo
  • Los Angeles Department of Water and Power logo
  • CEC logo

Copyright © 2024 Energy Transition Coordinating Council. Trademarks are the property of their respective owners. All rights reserved.

The ETCC is funded in part by ratepayer dollars and the California IOU Emerging Technologies Program, the IOU Codes & Standards Planning & Coordination Subprograms, and the Demand Response Emerging Technologies (DRET) Collaborative programs under the auspices of the California Public Utilities Commission. The municipal portion of this program is funded and administered by Sacramento Municipal Utility District and Los Angeles Department of Water and Power.