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Epi-center of the Solar CITIES Solution. We place "methanogenics" (the production of bio-methane or "biogas" by the Archaea and our other symbiotic microbial partners) at the heart and root of sustainable development because it is arguably the only technology that everybody everywhere can implement themselves at every scale.

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Biogas talks in languages other than English
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Discussions about Biogas in Finnish / Suomi.
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here we discuss all aspects of solar energy. We distinguish between two major types in our subforums: Solar Electricity (Photovoltaics) and Solar Thermal (which includes solar hot water systems and solar concentrators).

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Wind energy comes next on the list, not only for providing electricity, but as a source of heat for biodigesters (via the usual heat dump required by wind generators for energy overage) and as a direct source of pumping energy.
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the need for thermal energy in much of the world to keep the biodigesters and plant growing systems going. In this board we discuss how to get that thermal energy -- from greenhouses to geothermal and a whole lot more! (Note, however, that discussions of SOLAR thermal heating go on in our SOLAR forum!)
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Lets discuss the website, features, idea, what you like, what you don't like, etc.
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Here we discuss solar thermal applications, from flat panel to vacuum tube, batch and continuous flow, DIY to commercial, solar power towers, solar concentrators and solar cookers and solar troughs... basically if the sun heats it we talk about it here.
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Photovoltaics of all kinds are discussed here, from silicon dioxide to gallium arsenide, cadmium telluride, CIGS (copper indium gallium diselenide), thin film, mono and polycrystalline etc.
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