http://www.nytimes.com/2014/11/24/b...-win-on-price-vs-conventional-fuels.html?_r=0
In Texas, Austin Energy signed a deal this spring for 20 years of output from a solar farm at less than 5 cents a kilowatt-hour. In September, the Grand River Dam Authority in Oklahoma announced its approval of a new agreement to buy power from a new wind farm expected to be completed next year. Grand River estimated the deal would save its customers roughly $50 million from the project.
And, also in Oklahoma, American Electric Power ended up tripling the amount of wind power it had originally sought after seeing how low the bids came in last year.
“Wind was on sale — it was a Blue Light Special,” said Jay Godfrey, managing director of renewable energy for the company. He noted that Oklahoma, unlike many states, did not require utilities to buy power from renewable sources.
“We were doing it because it made sense for our ratepayers,” he said.
According to a study by the investment banking firm Lazard, the cost of utility-scale solar energy is as low as 5.6 cents a kilowatt-hour, and wind is as low as 1.4 cents. In comparison, natural gas comes at 6.1 cents a kilowatt-hour on the low end and coal at 6.6 cents. Without subsidies, the firm’s analysis shows, solar costs about 7.2 cents a kilowatt-hour at the low end, with wind at 3.7 cents.
Dirty coal, 6.6 cents a kilowatt, with depletion allowances (subsidies), wind, 3.7 cents a kilowatt without any subsidies. Solar, without any subsidies, within a half cent of dirty coal, and the price of solar is still rapidly declining. Clean coal? Not even in the ball park with solar and wind today.
Wind, solar, and geothermal will replace fossil fuels for the generation of power simply on the basis of economics. Good old market economy you guys are always talking about.