A bill to amend the Internal Revenue Code of 1986 to allow a credit against income tax for certain energy-efficient property.

Amends the Internal Revenue Code to allow, through December 31, 2008, a limited credit for energy-efficient building property. Defines such property as a fuel cell power plant that: (1) generates electricity using an electrochemical process; (2) has an electricity-only generation efficiency greater than 30 percent; and (3) generates at least 0.5 kilowatt of electricity, using an electrochemical process.Allows, through December 31, 2008, a limited credit to an individual for nonbusiness energy-efficient building property (U.S. residential property) expenditures.