What is an active house

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An active house does not require a large amount of energy to operate, practically it is a zero house. It can produce from renewable sources enough energy to consume and extra energy. Active buildings are built from environmentally friendly materials. The houses connect to the photovoltaic panels , the correct insulation is important. Only the fireplace stove is sufficient for the heating itself. Like passive houses , they are built of wood, brick or a typical brick structure.