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Classic, Plus, Premium: The Passive House classes and how they can be reached

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of the energy is used to produce electricity and 30 percent to produce useful heat, with only 20 perc... icity becomes 150 percent heat in addition to the 30 percent useful heat from the cogeneration unit. A... as shown in variant 3b. Then, demand comes in at 30 kWh/(m²TFA*a) to fulfill Passive House Premium. H... the roof. It is harder to reduce energy demand to 30 kWh/(m²a) of renewable primary energy. In the hea