Ecology

Solar Panel Payback Calculator

Find how long a solar system takes to pay for itself.

Calculated Output

Payback period (years) 8.333

25-year net savings ($) 30,000

Formula: payback = system cost ÷ annual savings

Step-by-Step Breakdown

1. Values used:

2. System cost = 15,000 $

3. Annual savings = 1,800 $

5. Payback period = System cost / Annual savings = 15,000 / 1,800 = 8.333years

6. 25-year net savings = 30,000$

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The math behind it

payback = net system cost ÷ annual savings. Panels typically last ~25 years.

$15,000 ÷ $1,800/yr → 8.3 years.

Incentives?

Subtract rebates/tax credits from the system cost first.