DSIRE® - A database of incentives for use of renewable materials and energy efficiency, including federal, state, and local initiatives.
Commonwealth Edison (ComED) Home Savings - Includes energy analyzer, tips and guides, home makeovers, programs and incentives, and other resources.
U.S. Department of Energy
Consumer Energy Tax Incentives
Tax Breaks for Businesses, Utilities, and Governments
Do-It-Yourself Home Energy Audits
Energy Calculators and Software for the Home
Alliance to Save Energy
Home Energy Check-Up