Estimate the payback period for energy-efficiency retrofits by comparing total project cost with annual utility-bill savings.
Formula
totalCost / annualSavingsTotal Retrofit Cost
10,000
Annual Energy Savings
2,000
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The Energy Efficiency Retrofits Payback Period Calculator estimates how many years it takes for a retrofit to repay its upfront cost through annual energy savings. With the default $10,000 retrofit cost and $2,000 annual savings, the estimated payback period is 5 years. Treat this as a planning estimate; utility rates, incentives, maintenance costs, financing, occupancy, and measured savings can change the actual result.
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The estimate combines Total Retrofit Cost, Annual Energy Savings and returns Payback Period (Years).
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