Solar heating combined with a ground heat pump is a cost-efficient, ecological solution

The energy-efficiency and cost-efficiency of buildings and areas can be improved by combining different heating methods locally. The DESY project, led by VTT Technical Research Centre of Finland, used ecological hybrid solutions to enhance the efficiency of heat and electricity production in buildings. Cost-efficient energy investments entail heating and heat recovery. A hybrid solution combining a ground heat pump with solar heating turned out to be the most efficient solution with the lowest life-cycle costs. Locally distributed energy production and investments were studied in the