The residential building described is an experimental low energy home, using a hybrid system with natural energy resources and unused energy. Describes its construction and evaluation. Added features include superinsulation and good airtightness, with a calculated heat loss coefficient of 0.97 W/m2K. Passive systems include direct solar heat gain and exhaust stack ventilation. Renewable energy systems include PV modules, wind power and domestic hot water, and a ground source heat pump for both heating and cooling. There is a floor cooling system for summer cooling.
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