A PV powered heat pump uses photovoltaic electricity generation to operate a heat pump system, eliminating grid electricity dependency for space heating and cooling. This fully renewable configuration provides energy independence by matching solar electricity availability with heating and cooling demands.
Technical Details
PV powered systems integrate 8-15 kW photovoltaic arrays with 5-10 kW air-source or ground-source heat pumps, including battery storage of 10-20 kWh for load shifting. Heat pump seasonal performance factors reach 3.0-4.5 depending on source and sink temperatures. System design accommodates 3-4 hour daily solar peak generation matching typical heating requirements. Inverters must support variable DC input voltages from PV arrays and provide 3-phase AC output for heat pump motors.
Applications and Significance
PV powered heat pumps suit residential and small commercial buildings seeking complete heating autonomy from grid supplies. These systems eliminate operating costs after installation, providing 25-35 year amortization periods. Capital investment ranges from 25000-40000 euros including PV, heat pump, and battery components, qualifying for national renewable energy grants. Annual thermal output reaches 15000-25000 kWh, covering space heating, cooling, and hot water needs entirely through renewable solar resources, achieving net-zero energy building standards.