Estimate the renewable electricity associated with a power purchase agreement from contracted capacity and expected operating performance. The calculator adjusts nameplate capacity for capacity factor, availability, and the share of output covered by the contract. Use the annual, monthly, and contract-term results to check whether expected delivery aligns with an energy procurement target.
Annual output is the modeled electricity delivered under the stated operating assumptions, not a guaranteed settlement quantity.
Avoid double-counting availability when the capacity-factor forecast already incorporates outages and curtailment.
A 50 MW contract at 35% capacity factor, 97% availability, and 100% share produces about 148,701 MWh per year and 12,392 MWh in an average month.
No. Capacity factor, availability, and contracted share reduce the theoretical nameplate maximum to an expected delivery estimate.
No. Set availability to 100% to avoid counting the same outage effect twice.
No. The result models physical energy and does not apply prices or settlement adjustments. Add taxes, financing costs, incentives, and contract-specific charges separately when they apply.
Yes. Decimal inputs are supported, and the calculator keeps full precision until results are displayed.
Zero is accepted where it represents a valid operating condition. A value that would make the formula undefined triggers an input message instead of showing an invalid result.
| Variable | Meaning | Unit |
|---|---|---|
| P | Contracted capacity | MW |
| CF | Capacity factor | % |
| A | Availability | % |
| S | Contracted output share | % |