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Sustainability & reduction of emissions come from doing only ! Get a cool trike - it runs on 2-3 litres of table water only (for the bicyclist) ! |
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| Independent consultancy with a side-view on economical reasons concerning: | |
| Solar systems for heating, cooling & climating and electricity | |
| Windpower-plants | |
| Geothermal heating systems | |
| Heating with wood & pellets | |
| Rain-water usage | |
| FREE Software Tools |
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