LED Savings Calculator & Lighting Energy ROI Payback

Calculate Your LED Savings

Check how many fixtures/bulbs you have and see how switching to LED can help save energy

LED Savings Calculator

# of fixtures or bulbs to be replaced

Units

Old fixture or Bulbs (to be replaced)

Wattage

Watt

Price per unit

Lifespan

Incandescent / Halogen: 1,250 hours
Pulse Start Metal Halide (PSMH): 15,000 hours
High Pressure Sodium (HPS): 20,000 hours

LED fixture or Bulbs (new fixture)

Wattage

Watt

Price per unit

Lifespan

LED: 50,000 hours

Electricity Cost

Energy rate

LED: 50,000 hoursThe average residential price of electricity in the U.S. in 2015 was 12.66¢/kWh. To find the price per kWh (Kilo Watt hour) for your state and sector, check your energy bill or go to the EIA website.

Hours of operation

Other factors (optional)

Labor cost for relamping

Results

Number of light units to be replaced to LED units: 1 unit

	Old fixture	LED fixture
Initial cost	$1.00	$50.00
Wattage	75 Watt	9 Watt
Electricity cost ( 12.6¢/kWh)	$41.39 per year	$4.97 per year
Lifespan (continuous use)	1,250 hours	50,000 hours
Lifespan when used for 12 hours a day, 7 days a week	3 months 13 days	11 years 4 months 30 days
No. of times an old fixture to be replaced each year	3.50 times per year	-
No. of times an old fixture to be replaced during the LED fixture'slifespan ( 11 years 4 months 30 days)	40 times	-
Cost of replacements each year ([Incand. bulb cost] × [Number of replacement per year])	$3.50 per year	-
Annual labor cost for ralamping ([Labor cost per relamping] × [Number of replacement per year])	$0.00 per year	-
Total annual cost ([Cost of replacing fixtures] + [Electricity] + [Labor cost])	$44.90 per year	$4.97 per year (same as the annual electricity cost)
Total cost (after 11 years 4 months 30 days)	$513	$106
Total savings /w LED fixture (ROI) (after 11 years 4 months 30 days)	$513 − $106 = $407
Break-even point (per unit) (The amount of time necessary to save as much money as you invested initially)	1 year 2 months 22 days