Calculator
LED lighting savings
Calculate annual savings and payback from replacing incandescent, halogen and CFL bulbs with LEDs at Ontario electricity prices.
Last reviewed November 2, 2026
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$/kWh
$
Your estimate
Yearly savings
$158
Energy saved
1,056 kWh
80% less
Payback
7.9 months
$104 for bulbs
LEDs also last 15–25 times longer than incandescent bulbs and give off far less heat, which helps in summer. Switching CFLs pays back slowest; replace them as they burn out. Read our LED lighting guide.
Assumptions and method
LED replacement wattages: 9 W for a 60 W incandescent or 50 W pot light, 8 W for a 45 W halogen, 9 W for a CFL, 14 W for a 90 W flood. Savings = (old watts − LED watts) × hours × 365 days.
Lighting adds a little heat in winter, so real savings in a heated home are slightly lower than shown; in summer they are slightly higher.