Natural gas: friend or foe?
Consultants such as Black & Veatch believe gas could produce 40% of U.S. power by 2035. The fuel has government support -- President Obama mentioned natural gas as part of the country's clean energy strategy in his State of the Union.
But the price of methane -- now hovering around $4 per million BTUs -- is a making green energy competitors sweat. Many fear that the low price will make solar farms unattractive, enabling gas companies to soak up any available incentives.
NEXT: The biofuel renaissance
Last updated May 18 2011: 2:50 PM ET
