The energy challenge: In Texas, oil has gone with the wind

Texas, once the oil capital of North America, is rapidly turning into the capital of wind power. After breakneck growth the last three years, Texas has reached the point that more than 3 percent of its electricity, enough to supply power to one million homes, comes from wind turbines. Texans are even turning tapped-out oil fields into wind farms, and no less an oilman than Boone Pickens is getting into alternative energy. “I have the same feelings about wind,” Pickens said , “as I had about the best oil field I ever found.” He is planning to build the biggest wind farm in the world, a $10 billion behemoth that could power a small city by itself. Wind turbines were once a marginal form of electrical generation. But amid rising concern about greenhouse gases from coal-burning power plants, wind power is booming. Installed wind capacity in the United States grew 45 percent last year, albeit from a small base, and a comparable increase is expected this year.

At growth rates like that, experts said, wind power could eventually make an important contribution to the nation’s electrical supply. It already supplies about 1 percent of American electricity, powering the equivalent of 4.5 million homes. Environmental advocates contend it could eventually hit 20 percent, as has already happened in Denmark. Energy consultants say that 5 to 7 percent is a more realistic goal in this country.

The United States recently overtook Spain as the world’s second-largest wind power market, after Germany, with $9 billion invested last year. A recent study by Emerging Energy Research, a consulting firm in Cambridge, Massachusetts, projected $65 billion in investment from 2007 to 2015.