ENERGY FLOW: REGULAR
Compare legacy bulb vs. LED costs, CO₂ savings, and payback time for a single fixture.
Annual financial savings
$13.03/yr
$1.09/mo · $0.04/day
Carbon footprint reduction
46.5 kg CO₂/yr
93.1 kWh saved × 0.5 kg/kWh
Time to break even
Daily operating cost
Monthly operating cost
Annual CO₂ avoided
Power saved
51 W per bulb
Payback in days
112 days
Why LED is the best investment for your home's energy efficiency
Most home lighting emissions are indirect—they come from power plants that supply your grid, not from the bulb itself. Every kWh you avoid by switching to LED multiplies by your region's carbon intensity (kg CO₂ per kWh) to estimate greenhouse gas savings. Cleaner grids mean fewer kg CO₂ per kWh saved; coal-heavy grids mean each watt-hour cut matters even more.
How lighting efficiency impacts global carbon emissionsInternational Energy AgencySave Report: Download your battery and solar calculation specs as a private PDF via JoinMyPDF.
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