This virtual power plant annual output calculator turns operational or financial assumptions into a transparent planning estimate for a virtual power plant. Enter values that describe your own portfolio, review the main result and supporting metrics, and use the formula section to confirm how each input is applied. The tool runs entirely in your browser and is intended for early-stage comparison, budgeting, and scenario review rather than contractual settlement or final engineering design.
Annual output (MWh) = capacity (MW) × 8,760 × capacity factor × availability
Annual output is the estimated energy dispatched by the aggregated portfolio during a standard 365-day year.
Use measured portfolio data when available; this planning estimate assumes stable capacity and percentages.
A 50 MW portfolio at an 18% dispatch capacity factor and 92% availability produces 50 × 8,760 × 0.18 × 0.92 = 72,532.8 MWh/year.
Yes. Replace the defaults with values from the same operating period and keep every unit consistent.
Use the share of capability expected to be available when requested. Do not apply it twice if another input already includes outages or opt-outs.
Zero is accepted where it represents no energy, events, incentives, cost, or reserve. A denominator such as capacity, duration, or required performance must be greater than zero.
Enter percentages as displayed values, such as 90 for 90%. The calculator converts them to decimals internally.
No. It is a transparent planning estimate and does not capture every contract, network, behavioral, financing, or operational constraint.
| Variable | Unit or role |
|---|---|
| Capacity | MW |
| Capacity factor | Percent of maximum annual energy |
| Availability | Percent available |
| Output | MWh per year |