Cost Of Solar Power Drops - PV Cells Has Dropped 99% Since 1977
Numerous studies report drastic drop in costsolar photovoltaic cells. It now shows that some of the costs of solar power are close that of grid parity.
http://thinkprogress.org/climate/2013/10/06/2717791/cost-pv-cells-solar-power-grid-parity/
