Establishes in the Treasury the Energy Assistance Fund.
Directs the Secretary of the Treasury, upon request of the Secretary concerned, to transfer amounts from the Fund to that Secretary to make or guarantee low-interest loans or grants to U.S. persons to purchase and install: (1) qualifying energy efficient property in their principal dwelling (i.e., solar powered property to heat water or generate electricity, fuel cells, or compliant stoves); (2) idling reduction devices or advanced insulation in heavy trucks; and (3) qualified alternative fuel vehicle refueling property at a station.