Lighting is a significant component of hospital energy use, representing more than 10 percent of energy consumption. Further, lighting boosts the demand for cooling because every watt of electricity used for lighting generates heat. Energy-efficient lighting strategies, whether used in new construction or in retrofits of existing facilities, yield major savings and have a short payback period.
Read the full report: http://apps1.eere.energy.gov/buildings/publications/pdfs/alliances/hea_lighting_fs.pdf
