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Upgrading to Jarvis Lighting fixtures doesn’t just improve the look of your space – it saves money! Use the payback calculator below to compare your current energy consumption to an LED upgrade.

Step 1: Convert existing lights into kilowatt-hours per month. 1 kilowatt is 1000 watts. 1 kilowatt-hour (kWh) is just 1 kilowatt (kW) ran for 1 hour (h).​ Note: At 12 hours per day, there are 372 nighttime hours per month.

Total Watts × .001 × Hours Used per Month = kilowatt hours per Month

Total Wattage of Old Fixtures
______________________________

1000W = 1kW

Hours Used per Month
x______________________________

Old kWh per Month
=______________________________

Step 2: Convert new lights into kilowatt-hours per month, assuming they are run for the same number of hours.

Total Watts × .001 × Hours Used per Month = kilowatt hours per Month

Total Wattage of New Fixtures
______________________________

1000W = 1kW

Hours Used per Month
x______________________________

New kWh per Month
=______________________________

Step 3: Subtract new monthly electricity consumption from old monthly electricity consumption to get total monthly electricity savings.

Existing Lights kWh/month – New Lights kWh/month = Monthly Savings in kWh/month

Old Lights kWh per month (Step 1)
______________________________

New Lights kWh per month (Step 2)
x______________________________

Monthly Savings in kWh per Month
=______________________________

Step 4: Convert monthly savings from kWh/month into dollar savings. Check your utility bill for your current electricity rate.

Monthly Savings in kWh/month × Electricity Rate = Monthly Savings in $$$

Monthly Savings in kWh/month (Step 3)
______________________________

Electricity Rate
x______________________________

Monthly Savings in  $$$
=______________________________

Step 5: Calculate total payback period.

Total Cost ÷ Monthly Savings = Payback Time in Months

Total Cost of New Lights
______________________________

Monthly Savings in $$$
÷ (Step 4)______________________________

Payback Time in Months
=______________________________

Step 6: Calculate ten year savings.

Monthly Savings  ×120 Months = Total Electricity Savings in 10 Years

Monthly Savings in $$$ (Step 4)
______________________________

120 Months × 120

Total Electricity Savings in 10 Years
=______________________________

Note: This calculates electricity savings only; additional savings from reduced maintenance are not included in this calculation.

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