| Photovoltaic modul with water cooling
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The photovoltaic has 2 connections for cooling water. Warm with the warmth the swimming pool or the earth collector of the heat pump based heating system.
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| electric power, heat and climate regulation
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Big towns have a some degree Celsius more warm climate than the green surroundings. This has not to be like this, however a made energy wastefulness costing us much money.
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| Roof secure for the future
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Roofs not producing no electric power an no heat and break down because a littile bit snowfall have nothing to do with a secure future.
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