Energy Efficiency Payback Calculator
How rising electricity rates — driven by AI data center growth — extend payback periods for energy efficiency investments
Base Payback
3.0 yrs
At current rates
+34.1% Payback
2.2 yrs
With rate increase
Payback Shift
-0.8 yrs
Faster payback
Lifetime Net Savings
$878
Investment recovers
Select Your Scenario
Ecobee/Nest avg savings data
14.0¢/kWh
National avg 16.2¢ | IL=17.2 | TX=14.9 | VA=15.8 | OH=13.8 | DC=18.4
+34.1%
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 Rate3.0 yrs to break even
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+34.1% Rate2.2 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 $0 = break-even point. Dashed line = equipment lifespan.
Rate Increase Scenario Comparison
| Metric | Base Rate | +10% | +20% | +30% | +40% | +50% | +60% |
|---|---|---|---|---|---|---|---|
| Rate (¢/kWh) | 14.0 | 15.4 | 16.8 | 18.2 | 19.6 | 21.0 | 22.4 |
| Annual Savings ($) | $84 | $93 | $101 | $109 | $118 | $126 | $135 |
| Payback (Years) | 3.0 | 2.7 | 2.5 | 2.3 | 2.1 | 2.0 | 1.9 |
| Shift vs Base | — | -0.3 yrs | -0.5 yrs | -0.7 yrs | -0.8 yrs | -1.0 yrs | -1.1 yrs |
| Lifetime Savings | $591 | $675 | $759 | $844 | $928 | $1,012 | $1,096 |
| Viable? | Yes | Yes | Yes | Yes | Yes | Yes | Yes |