Solar Heat Pump Seasonal And Peak Demand Energy Analysis

Report Number



Energy Efficiency; Buildings; Heat Pumps; Retrofits


A proprietary research project was conducted to evaluate the potential annual and peak energy reduction resulting from the addition of a solar powered mini-split heat pump system to an existing home with central heat and cooling in the Florida Power and Light service territory. Experiments were performed to characterize the performance of a solar powered mini-split heat pump over a 12-month period and to determine seasonal and peak demand savings for both heating and cooling periods. The high efficiency 1.5-ton mini-split heat pump (19.2 SEER / 10.0 HSPF), along with 2 kW of photovoltaic (PV) panels, 8 deep discharge batteries, a charge controller, and an inverter were installed in a 2000 ft2 Building Science Lab building on the Florida Solar Energy Center (FSEC) campus. The project measured high percentage energy savings with long economic payback periods.

Date Published


Local Subjects

Buildings - Energy Efficiency; Heat Pumps; Buildings - Retrofits


FSEC Energy Research Center® Collection



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