In April, proposed a windfall profits tax on Big Oil. Supports McCain's proposal on summer gas tax holiday. Promises to reduce dependence on foreign energy by two thirds by 2030. Wants to promote energy independence by investing $50 billion into research and development of “renewable energy, energy efficiency, clean coal technology, ethanol and other homegrown bio-fuels." Would offer tax credits for consumers who make energy efficient purchases such as hybrid vehicles, home insulation, and appliances. Supports a cap-and-trade system on greenhouse gases.

In April, proposed a gas tax holiday between Memorial Day - Labor Day period (also wants the US to cease buying oil for the Strategic Petroleum Reserve during that time). Supports a cap-and-trade system for greenhouse gases; plans to reveal a complete energy plan in the near future.

Wants to wean America of its dependence on foreign energy though measures that include strengthened CAFÉ standards, the creation of a National Low Carbon Fuel Standard (NLCFS), and the expanded uses of E85 and other renewable fuels. Supports a cap-and-trade system for greenhouse gases. Opposes McCain proposal for gas tax holiday.