Reduced temperature entering the solar panels makes larger temperature difference between the solar side and the water increasing possible thermal energy absorbed by the solar panels. This can be achieved by an Hybrid heat pump cooling in the bottom of the thermal storage tank or after the outlet to solar panels and heating in the top of the thermal storage or after the outlet before it is sent to the district heating grid.
TRADITIONAL SOLAR HEAT EXAMPLE:
SOLAR HEAT EXAMPLE WITH HYBRID HEAT PUMP:
