The U.S. Department of Energy (DOE) Building America program, in collaboration with Florida Power & Light (FPL), is pursuing a phased residential energy-efficiency retrofit program in Florida. This research is to establish annual energy and peak energy reductions from the technologies of two levels of retrofit – shallow and deep, with savings levels at the high end expected to reduce whole-house energy use by 40%. The Phased Deep Retrofit (PDR) project, has installed energy-efficiency retrofits in a sample of 60 existing, all electric homes.1Energy end-use savings and economic evaluation results from the phased measure packages and single measures are summarized along with lessons learned.
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