27 April 2020

Hybrid Heat Pumps – Final Report

A hybrid heat pump is the combination of a heat pump with a traditional fossil-fueled heater (boiler or furnace). By combining two heating technologies within a single control strategy, it is possible to flexibly choose the use of the heat pump or boiler/furnace part of the heating installation. This flexibility allows to optimize heat production according to local considerations. For instance, regarding CO2-production, running costs, primary energy, grid congestion or load balancing. Additionally, a hybrid heating system may have lower investment costs than an all-electric heat pump and will often fit within comparably tight spaces. The goal of this annex was to develop knowledge on the technical development and the market opportunities for hybrid heat pumps.