The shale-gas boom that's flooded the U.S. with cheap natural gas has ended most plans to build...

|By:, SA News Editor

The shale-gas boom that's flooded the U.S. with cheap natural gas has ended most plans to build nuclear reactors. Utilities are turning to gas-fired plants to generate electricity, with 258 on line to be built through 2015; they're also faster and much less expensive to build. But some in the industry worry about relying too heavily on any one fuel: "Even if it's economical, is it wise?"