Tag Archive
Sunshine is free, so can photovoltaics be cheap?
Image via CrunchBase
Here’s how to make a solar cell from silicon: take one solid block of doped silicon, saw it into thin wafers, layer said semiconductors beneath a panel of transparent glass, connect them to a metal electrode that can channel away the electrons knocked loose by incoming photons and turn [...]
Are Engines the Future of Solar Power?
Image by Synthesis Studios via Flickr
Stirling engines might be the best way to harvest the power provided by the sun
Nearly 200 years after their invention, and decades after first being proposed as a method of harnessing solar energy, 60 sun-powered Stirling engines are about to begin generating electricity outside Phoenix, Ariz., for the first time. [...]
Mobile MaxPure solar filters bring pure water to refugees
Image via Wikipedia
Recently, we reported on Marines and their deployment of GREENS solar-power for technological devices on the battlefield. Soon after publishing that article, Gizmag was contacted by World Water and Solar Technologies (WWST) and told us about the company’s placement of solar-powered water purification units throughout the world, but in particular, in war-torn Darfur, [...]
Electrical potential
Image via Wikipedia
The electric eel inspires a new type of battery
IN DECEMBER 2007, a Japanese aquarium hooked up the lights on a Christmas tree to a tank containing an electric eel. Metal plates at the ends of the tank collected the electricity that the fish generated, which was used to power the bulbs. It was [...]
What is the Real Cost of Power Production?
Image by elston via Flickr
Market prices don’t reflect hundreds of billions of dollars in hidden costs of energy production to human health and the environment
Market prices don’t reflect hundreds of billions of dollars in hidden costs of energy production to human health and the environment, a National Research Council panel said in a report released [...]
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