JCPenney saved over 47 million kWh and $5 million with variable frequency drive retrofits of rooftop units across 131 stores. The case study describes the decision process and results of this successful program.
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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.
In this video, Paul Torcellini, principal group manager for Commercial Buildings Research at the National Renewable Energy Laboratory, discusses the importance of design and planning in creating more energy-efficient buildings.
This case study details strategies and activities for energy savings across a hospital. The case study was extracted from the "Business Case for Energy Efficient Building Retrofit and Renovation" report. Gundersen Lutheran established its environmental program, called Envision. The Envision program aims to improve air quality and the health of its community as well as reduce the cost of healthcare to its patients by hedging against rising energy costs. Its goal is to offset 100% of the fossil fuel energy it consumes by 2014 through energy conservation and by creating clean, renewable energy.