Rooftop Revolution: Changing Everything with Cost-Effective Local Solar:

The solar opportunity is driven by converging economics: the installed cost of solar has fallen 10% per year since 2006 and grid electricity prices have averaged a 2% annual increase in the last decade.

Nearly 100 million Americans could install over 60,000 megawatts of solar at less than grid prices – without subsidies – by 2021. If the trends continue, there may be an outbreak of economical solar.

Solar Policy Can Advance (Or Delay) Grid Parity By A Decade

In their excellent interactive graphic, Bloomberg Energy Finance calls solar grid parity (when electricity from solar costs less than grid power) the “golden goal.” It’s an excellent illustration of how the right energy policy can help a nation go gold on solar or wallow in metallurgical obscurity. In the case of the U.S., it may mean delaying grid parity by eight years.