South view zero energy house in Styria VulaknlandOn the upper part of the roof are 48 squaremeter solar collector. Below left and right 24 photovoltaic modules with together 2.1 kW peak
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South view zero energy house in Styria VulaknlandOn the upper part of the roof are 48 squaremeter solar collector. Below left and right 24 photovoltaic modules with together 2.1 kW peak
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