Measured energy savings of a comprehensive retrofit in an existing Florida residence

Simulation analysis suggests that electricity consumption can be reduced up to 409i0 in existing Florida homes. To test this theory, an all-electric home was located in Miami, Florida upon which to perform a variety of retrofits. The total annual electricity consumption in the one year base-line period preceding the study was 20,733 kWh. Detailed instrumentation and metering equipment was installed in May of 1995 so that each energy end-use could be evaluated. A year of baseline monitoring was followed by installation of a battery of retrofits: radiant barrier with additional attic ventilation, a SEER 15 air conditioner, an add-on solar water heating system, a super efficient refrigerator, a smaller, more efficient pool pump and compact fluorescent lighting. The results showed a 40-45% reduction in measured daily energy use (28.6 kWh/day). Annual savings were between 8,000 and 10,300 kWh depending on the base year of reference. Space cooling was reduced by 4290 and water heating by more than 70~0.