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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Website with information on what is anticipated to be the first
zero energy renovation of an existing building in the District
of Columbia. This building is one of the first in the United States to use sewer heat recovery (an energy technology that is more common in Europe.)