The German SurPlusHouse includes photovoltaic on all walls (also on the north side as a system was chosen that can produce electricity from diffuse radiation as well) and a heat pump for heating, domestic hot water and cooling. The building is very compact and results therefore and because of the vacuum insulation in very low transmission losses.
Key points concerning the designCombined natural ventilation and mechanical ventilation with air-conditioning and some heat recovery.
Use of perforated shading panels to reduce direct solar gain while allowing natural day-lighting.
Use of external insulation to reduce heat loss in winter and to provide internal thermal mass, in conjunction with night-time free cooling to reduce peak summer temperatures.
Extensive use of natural lighting to reduce energy consumption by artificial lighting.
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