Free Republic

An expensive solar road project in Idaho can’t even power a microwave most days, according to the project’s energy data. The Solar FREAKIN’ Roadways project generated an average of 0.62 kilowatt hours (kWh) of electricity per day since it began publicly posting power data in late March. To put that in perspective, the average microwave or blow drier consumes about 1 kWh per day. On March 29th, the solar road panels generated 0.26 kWh, or less electricity than a single plasma television consumes. On March 31st, the panels generated 1.06 kWh, enough to barely power a single microwave. The panels...

A tiny solar cell doubles the efficiency of common photovoltaics' conversion of sunlight to electricity by capturing the energy from a broader spectrum of light. A tiny chip similar to the solar cells carried by many satellites and other spacecraft today--including the surprisingly long-lived Mars Rovers--has shattered previous records for maximum efficiency in producing electricity from sunlight. "This is the photovoltaic equivalent of the four-minute mile," affirms Larry Kazmerski, director of the Department of Energy's National Center for Photovoltaics in Colorado. "This is a disruptive technology that eventually could provide us, at least in the Southwest, with cost-competitive electricity fairly...