SolEnEV – Solar energy (PV) self-consumption for heat

SPF has analyzed in more detail the options for self-consumption of photovoltaic electricity for water heating and prepared a fact sheet for EnergieSchweiz. It has been shown that self-consumption through hot water production via heat pumps can be useful by making appropriate adjustments to the running times of the heat pumps. However, the use of electric heating rods to increase self-consumption must be discouraged, because this is extremely inefficient compared to the heat pump and thus leads not only to efficiency losses and waste of electricity, but also to financial losses.