| http://www.w3.org/ns/prov#value | - Biogas and hydro are enough - as has already been demosnstrated with a network of over 20 small decentralized powerplants in a more than one year long testrunDecentralized power sources are much less susceptible to total failure and the times where you need to provide some sort of backup quickly drops into the 1-2 day range.
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