HomeBioGas is extremely cool. Turning the gas from an organic waste compost heap into an energy source and organic fertilizer (two hours of cooking gas per day with a basic unit). Genius.

If can power instantaneous gas water heater too – extremely genius. Love topiary the more clip the more electricity generated.

(image by others)

Lots and lots of ways of producing reliable low cost to consumers electricity without fossil fuels what costs more to construct and maintain a nuclear power plant or a multi-storey organic waste recycling center. An aircraft hanger with pods stacked to the ceiling in rows would produce a bit of gas. (similarly the current fertiliser shortage contributing to inflation and the global food crisis can be easily rectified)