New Report on LED Horticultural Lighting Systems Available
The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute has published a new report on the energy and economic performance of LED horticultural luminaires.
The LRC evaluated factors such as power demand, life-cycle cost, luminaire intensity distribution and luminaire shading.
The LRC researchers found that for a given growing area, energy savings were possible with some of the tested LED horticultural luminaires compared to the tested high-pressure sodium (HPS) and metal halide (MH) horticultural luminaires, when meeting the same photosynthetic photon flux density (PPFD) criterion, but there was remarkably wide variation among products.
“Upon analyzing our data, we were intrigued by how intensity distribution and layout emerged as key factors in system performance,” said LRC Research Scientist Leora Radetsky, who authored the report.
The project was funded by the Lighting Energy Alliance and Natural Resources Canada. Members of the Lighting Energy Alliance include Efficiency Vermont, Energize Connecticut, National Grid, and the Northwest Energy Efficiency Alliance.