For my bachelor graduation I did research in de field of sustainability. My research question was, is it possible to design an energy supplying house. In collaboration with 2 students from industrial engineering we decided to develop an “active house” with an indoor climate system instead of a “passive house”. By choosing for an “active house” we can meet the demand in a higher cooling/heating demand.
The starting point of the energy supplying house was the “Trias Energetics” step 1 lower the demand. Step 2 use renewable energy. Step 3 if necessary use fossil fuel in an efficient en clean way. To get an idea of the demands for an energy supplying house I did extensive research in previous build energy efficient houses and looked into building materials and energy saving/energy generating installations.
Most of the new installations used in the energy efficient house repay themselves so in the long term you can save money especially when fuel prises keep rising. Because these techniques require a higher investment we tried to implement the installations in a pre-war like house, since there was a high demand for these kind of houses. To save energy the house is well insulated, has small windows on the north facade and big openings on the south. The rooftop has a cantilever to cast a shadow on his own facade in summer but in winter when the sun is lower the sunlight can penetrate in the house. The house is heated and cooled by an heat pump with underground aquifer which is combined with the piling of the house. The rooftop is covered with PV-cells.