Solar Energy Cheaper than Fossil Fuels! 2012-03-06

'Like solar and the energy industry, the transport industry was driven not just by better and cheaper technology, but by environmental factors too. "In New York in the 1890s, there were 160,000 horses dropping 1.5-2 million tons of manure each day," he noted. "It had reached its saturation point .... pollution hastened the transition," Chu said.'

See US Department of Energy Secretary, Steven Chu, discussing Solar Energy and its costs.