Solar aktive Häuser: Mehr als nur Ideologie

Solarthemen 435. Gebäude, die aktiv die Kraft der Sonne nutzen, werden bereits seit Jahrzehnten gebaut. Und spä­tes­tens 2021 dürfen Häuser nur noch errichtet werden, wenn sie dem „Nahezu-Null-Energie-Stan­dard“ laut der europäischen Gebäuderichtlinie entsprechen. Allerdings konkurrieren unterschiedliche Haus­konzepte miteinander. Davon abhängig ist, welche Technologien zum Einsatz kommen: Lüftungsanlage, Wärmepumpe, Photovoltaik und/oder Solarthermie.

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