Water-cooling of this sort could also make a more direct contribution to the reduction of greenhouse-gas emissions, by promoting the use of solar energy.

ECONOMIST: Monitor

They can carry five to 20 times more current in the same unit area while reducing the amount of energy lost as heat by 75-97% (depending on whether the current is alternating or direct), even after accounting for all the nitrogen-cooling paraphernalia.

ECONOMIST: Inside story

The Solarlite Direct Steam Generation (DSG) combines two concepts, recirculation and injection cooling, to generate superheated steam.

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