The Cool Earth Solar balloons are a hot new product being developed to deliver renewable energy cheaper than current natural gas power plants.
concentrator

Cool Earth Solar Balloons Hot for Electrical Generation
(via www.greentechgazette.com)
Submitted by greentechgazette on Mon, 2008-02-18 18:49. | Tags: technology | balloons | cheap | concentrator | cool | earth | electricity | photovoltaic | solar

SolFocus Is So In-Focus with Concentrator Photovoltaic System
(via www.greentechgazette.com)
Solfocus is building a 500 kw concentrator photovoltaic power plant in Spain that it believes will be disruptive technology for the rest of the solar industry.
Submitted by greentechgazette on Thu, 2008-01-17 18:37. | Tags: technology | concentrator | energy | lenses | photovoltaic | solar | solfocus | sun