Compare calculators
Both calculators run independently — change the inputs on either side to compare results.
Climate
Energy Efficiency Upgrade ROI Calculator
Estimate how quickly your energy efficiency upgrade pays for itself. Enter your current energy bill, upgrade cost, rebates, and energy inflation to get a projected ROI over your chosen analysis period.
Fill in the required fields to see your result.
Climate
Home Energy Efficiency Upgrade Calculator
Calculate the payback period in years for home energy upgrades — insulation, new windows, or a new HVAC system — based on your home size, current energy bill, climate zone, and available rebates.
Fill in the required fields to see your result.
Key differences
| Energy Efficiency Upgrade ROI Calculator | Home Energy Efficiency Upgrade Calculator | |
|---|---|---|
| Category | Climate | Climate |
| Inputs required | 6 | 5 |
| Result | Simple Payback Period (years) | Annual Net Savings After 15 Years ($) |
| What it does | Estimate how quickly your energy efficiency upgrade pays for itself. Enter your current energy bill, upgrade cost, rebates, and energy inflation to get a projected ROI over your chosen analysis period. | Calculate the payback period in years for home energy upgrades — insulation, new windows, or a new HVAC system — based on your home size, current energy bill, climate zone, and available rebates. |