August 1, 2007Using very different designs, several companies are focusing the sun's energy onto solar cells to lower the cost of solar electricity.Photos: More solar bang for the buckTAGS:photovoltaics, solar energy, sun, cell, electricity, silicon, energy, FAQ, CEO
May 5, 2006Start-ups focus on an old technique of concentrating sunlight to make more cost-efficient photovoltaic panels. Photos: Solar 'concentrators'TAGS:hologram, silicon, electricity, cell, sunlight, photovoltaics, CEO