This virtual power plant capacity factor 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.
Capacity factor (%) = delivered energy ÷ (rated capacity × period days × 24) × 100
Capacity factor compares delivered energy with continuous operation at rated power over the same period.
For demand response and VPP portfolios, this utilization metric is descriptive—not a reliability score.
12,000 MWh delivered by 50 MW over 365 days gives 12,000 ÷ (50 × 365 × 24) × 100 = 2.74%.
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 |
|---|---|
| Delivered energy | MWh |
| Rated capacity | MW |
| Measurement period | Calendar days |
| Capacity factor | Percent |