The U.S. could increase the share of electricity generated from renewable
sources (wind, solar, plants and geothermal) to about 10 times current levels over the next 20 years, and still see a 13 percent decrease in electricity prices, according to Union of Concerned Scientists study, “A Powerful Opportunity: Making Renewable Electricity the Standard.”
Expanding renewable electricity use to these levels would freeze power plant emissions of carbon dioxide at about year 2000 levels, making a major contribution to meeting the US reduction targets under the Kyoto global warming treaty.
Another report, “Powerful Solutions: 7 Ways to Switch America to Renewable Electricity,” UCS details methods to switch America to renewable electricity: renewable portfolio standards, public benefits funding, net metering, fair transmission and distribution rules, fair pollution rules, consumer information, and putting green customer demand to work.
The reports are available online: [sorry this link is no longer available]