In 2014, NorthBay VacaValley Hospital became one of the first U.S. health care facilities to install an energy-efficient, ultra-smart outdoor LED lighting system. The award-winning project was so successful that the NorthBay Healthcare group is now considering expanding the VacaValley system and retrofitting the outdoor lighting at other sites.
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UC Davis established the Smart Lighting Initiative (SLI), an effort to reduce campus-wide lighting electricity consumption at least 60% below 2007 levels. The first phase of this program included a large-scale deployment of over 1,500 network-controlled LED streetlights, area lights, post-tops, and wall packs. The “ultra-smart” lighting installation has reduced annual energy use by an estimated 1,231,758 kWh, saving $120,909 annually in energy and maintenance costs.
The goal of the study was to determine the extent to which empirical evidence gathered via existing studies demonstrates that efficiency contributes to better financial performance.
Over 50 relevant studies from the market were reviewed and compiled into this summary.
While this review originally sought to cover all research on energy efficiency and financial performance, the final product focuses on “green labeled” buildings. The majority of research to date uses LEED or ENERGY STAR certifications as the means of distinguishing between efficient or sustainable buildings and conventional buildings. Specific energy efficiency measures, while proven to result in energy cost savings, have not yet been extensively evaluated for broader impacts.
This study does not represent new analysis conducted by DOE. It is a comprehensive survey and summary of the current body of research on the impacts of green labels on key components of commercial buildings’ operating statements. It does not exclude any studies or evaluate the quality of analysis.