Energy Efficiency Payback Calculator
How rising electricity rates — driven by AI data center growth — extend payback periods for energy efficiency investments
Base Payback
3.3 yrs
At current rates
+34.4% Payback
2.5 yrs
With rate increase
Payback Shift
-0.8 yrs
Faster payback
Lifetime Net Savings
$764
Investment recovers
Select Your Scenario
Ecobee/Nest avg savings data
12.6¢/kWh
National avg 16.2¢ | IL=17.2 | TX=14.9 | VA=15.8 | OH=13.8 | DC=18.4
+34.4%
Key driver: AI data center growth is pushing rates up 20-60% in many states
Regional Rate Increases (2020-2025)
Click a state to apply its rate to your scenario.
Sources: CNBC Nov 2025, Yale Climate Connections Jan 2026, PJM/Utility Dive
Payback Timeline — 1 block = 1 year
Base Rate3.3 yrs to break even
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+34.4% Rate2.5 yrs to break even
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Colored blocks = still paying off investment. Green ✓ = investment recovered. Longer bar = longer wait.
Cumulative Net Savings Over Time
Lines crossing $0 = break-even point. Dashed line = equipment lifespan.
Rate Increase Scenario Comparison
| Metric | Base Rate | +10% | +20% | +30% | +40% | +50% | +60% |
|---|---|---|---|---|---|---|---|
| Rate (¢/kWh) | 12.6 | 13.8 | 15.1 | 16.3 | 17.6 | 18.9 | 20.1 |
| Annual Savings ($) | $75 | $83 | $91 | $98 | $106 | $113 | $121 |
| Payback (Years) | 3.3 | 3.0 | 2.8 | 2.5 | 2.4 | 2.2 | 2.1 |
| Shift vs Base | — | -0.3 yrs | -0.6 yrs | -0.8 yrs | -0.9 yrs | -1.1 yrs | -1.2 yrs |
| Lifetime Savings | $504 | $580 | $655 | $730 | $806 | $881 | $957 |
| Viable? | Yes | Yes | Yes | Yes | Yes | Yes | Yes |