This case study summarizes the GLASE research team findings from a field demonstration of the “CO2” Light and Shade System Implementation (LASSI) lighting control algorithm at a Niagara County, New York greenhouse for a 12-month period in 2024 and 2025.
During the main supplemental lighting season (October to April), the CO2 supplementation added approximately 7% to the growth of the lettuce crop. A major limiting factor was that the installed lighting capacity was only 50 umol/m2/s, and that lighting was limited at night (due to neighbor relations). Using a simulation model we developed, we found that with an increased lighting capacity of 180 umol/m2/s and the installation of night screens to reduce light escaping the greenhouse, electricity used for lighting could be reduced by 30%.
