Comprehensive ROI Analysis Tool
Compare multiple energy efficiency upgrades to find the best investment for your Illinois home
📊 Project Details
Enter the total cost before incentives
⚠️ 30% for solar/batteries/geothermal - MUST ORDER BY OCT 31, 2025!
Illinois Shines, ComEd, Ameren rebates
💰 Savings Estimates
Estimated monthly savings on utilities
Illinois avg: 4.5% per year
25 years for solar, varies by system
4% average for solar in Illinois
📈 Your ROI Analysis
$14,500
Net Cost After Incentives
6.8 years
Payback Period
$68,420
25-Year Total Savings
372%
Return on Investment
$145
Est. Monthly Payment
+$5
Monthly Cash Flow
| Year | Annual Savings | Cumulative Savings | ROI Status |
|---|
📚 Understanding Your ROI
Payback Period
The time it takes for your energy savings to equal your net investment. Illinois average for solar is 6-8 years.
Return on Investment (ROI)
Total profit divided by net cost. Energy upgrades typically offer 200-400% ROI over system lifetime.
Cash Flow Analysis
Compare monthly loan payments to energy savings. Positive cash flow means immediate savings.