| Photovoltaic | |
| Different view points about photovoltaic from our different technical magazines as wide outstretched information about electric power from light. | |
| Plus energy settlement in Freiburg |
| Business premises and office house solar ship |
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| The business premises and office building guard the settlement of row houses situated behind it from the street noise of Merzhauser-street. | |||
| Construction method without cellar: Box in the garden |
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| The plus energy-row houses are all implemented without cellar. For it the boxes stand in the garden for the bicycles and the other junk. | |||
| Roof as a moveable economic property |
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| The photovoltaic roof is so easy to mount and dismantle that it can be seen as a movable economic property. No land transfer tax for the roof. | |||
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