Study: Wind, solar, and energy storage could power electric grid

Study: Wind, solar, and energy storage could power electric grid
R & D Magazine
A combination of wind power, solar power and storage could be a cost-effective Renewable energy could fully power a large electric grid 99.9% of the time by 2030 at costs comparable to today's electricity expenses, according to new research by the ...http://www.rdmag.com/news/2012/12/study-wind-solar-and-energy-storage-could-power-electric-grid