Cost efficient solar is coming....

Technologyreview.com has some excellent articles I haven't been able to put down. Everything from biotech to nanotech to energy-related articles, covering the gamut of all that is new and fresh. I HIGHLY suggest this site, including these two articles [1 2] on the greening of concrete. Registration is free, so be sure to check it out.

Solar Power at Half the Cost

A new roof-mounted system that concentrates sunlight could cut the price of photovoltaics.

A new mechanism for focusing light on small areas of photovoltaic material could make solar power in residential and commercial applications cheaper than electricity from the grid in most markets in the next few years. Initial systems, which can be made at half the cost of conventional solar panels, are set to start shipping later this year, says Brad Hines, CTO and founder of Soliant Energy, a startup based in Pasadena, CA, that has developed the new modules.

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