ITC/PTC Calculator
Investment and production tax credit for solar projects.
Inputs
Results
Best credit value ($)
$600,000
Effective ITC rate (%)30%
ITC credit amount ($)$600,000
Annual PTC credit ($)$40,150
Total PTC over 10 years ($)$401,500
PTC net present value ($)$281,997
Recommended (1=ITC, 2=PTC)1
Effective project cost ($)$1,400,000
Annual production (kWh)1,460,000
Tax Equity Value$2,857,142.86
How to Use This Calculator
- Enter the total project cost and system capacity in kW DC.
- Set peak sun hours and system derate factor for annual production estimates.
- Toggle prevailing wage (required for full 30% ITC), domestic content bonus, and energy community bonus.
- Enter the current PTC rate and federal tax rate.
- Review the recommended credit (ITC vs. PTC), credit value, and effective project cost after incentives.
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