New solar arrays from SolFocus generate more power than conventional solar panels but use just one-thousandth as much expensive semiconductor material. The arrays’ curved mirrors focus sunlight onto one-square-centimeter solar cells, concentrating the light 500 times and improving the cells’ efficiency. SolFocus’s first power-producing installation will be generating 500 kilowatts of electricity by the end of the summer. The company expects that by 2010, electricity from its arrays will be about as cheap as electricity from conventional sources.
Courtesy of SolFocus
Product: SF-1000S-CPV-30 6.2-kilowatt 30-panel array
Cost: 24 to 28 cents per kilowatt-hour of electricity; SolFocus expects that figure to fall to 13 to 14 cents per kilowatt-hour by 2010
Subscribe to Continue Reading
Uh oh–you've read all five of your free articles for this month.
Insider Online Only
$19.95/yr US PRICE
Planes, Trains, and Automobiles Have Become Top Carbon Polluters
For the first time in decades, more carbon emissions will come from transportation than from coal- and gas-fired power plants.
LED Streetlights Are Getting a Dark Reception
They save on electricity, but LED streetlights come with a bluish tinge may be unwelcome—or even unhealthy.
The Paris Climate Accord Just Passed a Crucial Threshold
The landmark agreement could enter into force before the end of the year.