Monday, December 31, 2007

A Solar Grand Plan

31 December, 2007

cientific American

High prices for gasoline and home heating oil are here to stay. The U.S. is at war in the Middle East at least in part to protect its foreign oil interests. And as China, India and other nations rapidly increase their demand for fossil fuels, future fighting over energy looms large. In the meantime, power plants that burn coal, oil and natural gas, as well as vehicles everywhere, continue to pour millions of tons of pollutants and greenhouse gases into the atmosphere annually, threatening the planet.

Well-meaning scientists, engineers, economists and politicians have proposed various steps that could slightly reduce fossil-fuel use and emissions. These steps are not enough. The U.S. needs a bold plan to free itself from fossil fuels. Our analysis convinces us that a massive switch to solar power is the logical answer. More >>>

See article below for new developments in photovoltaic production technology. Editor

Thursday, December 27, 2007

Nanosolar’s Breakthrough - Solar Now Cheaper than Coal

November 23, 2007

Saturday, December 22, 2007

100-watt bulb set to be dimmed permanently

Congress this week passed legislation designed to boost energy efficiency and reduce greenhouse gas emissions. The measure raises fuel-efficiency for passenger vehicles to 35 miles per gallon (mpg) by 2020, up from 25 miles mpg now (the first such increase since 1975) and phases out 100-watt incandescent light bulbs by 2012. It also mandates that companies manufacture more energy efficient appliances, slap labels on TVs and computers specifying their energy consumption, and requires gasoline producers to quintuple the amount of ethanol and other biofuels in the fuel supply to 36 billion gallons by 2022. The Los Angeles Times reports that the 822-page bill, which passed after Democrats agreed to strip out a $21 billion tax increase to avoid a presidential veto, is expected to shave the nation's energy consumption by an estimated 7 percent and cut carbon dioxide emissions by 9 percent by 2030. Read More