As global energy use rises, some nations are amping up their energy efficiency. Which ones are doing it best?
Africa has become a laboratory for new kinds of electricity microgrids, nanogrids and other systems that rely on low-cost, renewable energy sources.
The design calls for hydrogen-fuel-cell-powered pumps that would mow down algae clogging waterways and poisoning marine life.
The first phase of a massive new solar plant is poised to open in Morocco. Continue reading →
There's electric thunder down under as race teams from 25 countries compete in Australia's coast-to-coast World Solar Challenge.
A multi-band antenna and a type of battery that converts alternating current to direct current is turning Wi-Fi into power.
Three different sizes produce power output to at 400 watts, 1,000 watts and 2.500 watts.
One wall could could absorb the emissions created by 300,000 typical cars.
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