LED Lighting Savings Calculator
LED Lighting Savings Calculator
| Detail | Value |
|---|---|
| Bulbs Replaced | 10 |
| Old Bulb Wattage | 60 W |
| LED Wattage | 9 W |
| Upfront LED Cost | $30.00 |
| Old Annual Cost | $164.25 |
| New Annual Cost | $24.64 |
| Payback Period | 2.6 mo |
Annual Lighting Cost ($/year)
Summary
What the Numbers Mean
With the defaults (10 bulbs, 60 W → 9 W, 5 hrs/day, $0.15/kWh, $3/bulb), old bulbs cost $164.25/year and LEDs just $24.64 — saving $139.61 annually. The $30 upfront pays back in about 2.6 months, and over the ~13.7-year LED lifespan the savings reach roughly $1,880.
The LED Advantage
Lighting is the easiest win in home energy: bulbs cost little, install in seconds, and LED lifespans of 25,000+ hours mean you save electricity and replacement costs for over a decade. This calculator uses 0.85 lbs of CO₂ per kWh saved (US grid average).
Frequently Asked Questions
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