diy biofilter aquaponics | Permaculture and Solar Photovoltaic Panels
diy biofilter aquaponics
Solar panels are expensive things, both in terms of money and the energy needed to produce them. Do they fit into a low-impact, permaculture lifestyle? How do they measure up against other sources of renewable energy? A good discussion on the subject, filmed at the Hampshire Green Fair 2011
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diy biofilter aquaponics | Permaculture and Solar Photovoltaic Panels
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Reviewed by nahaa
on
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