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Wind Energy: Period Factor and Power-Curve Bins

Calculate wind energy over explicit period hours from capacity factor, or integrate speed-duration bins with an actual curve and documented losses.

Use this result well

Inputs that matter
Reference capacity (kW), Entered period capacity factor (%), Period duration (h), Sources and assumptions, and 7 more
Output to expect
Energy from capacity and period factor, Power-curve energy from speed bins
  • Check the units and required inputs before comparing results.
  • Keep the assumptions with a copied result so you can reproduce the calculation later.
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Wind Energy

Reference & details

How it works

Energy from capacity and period factor

Translate an explicit reference capacity and capacity factor into energy over the stated period. Zero production is valid; the capacity factor must already represent the intended delivered-energy boundary.

Period kWh = reference kW × capacity factor/100 × period hours.

Power-curve energy from speed bins

Calculate period energy from documented wind-speed duration bins and an electrical turbine curve. Include calm and cut-out periods, specify period coverage and apply each loss once.

Gross kWh = Σ P(speedᵢ) × hoursᵢ; net kWh = gross × availability × (1−additional loss).

Updated: September 2026

Example Scenarios

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 10,980 kWh in the entered period

Try this example to see the calculation, then enter actual documented values and preserve the measurement conditions. A failed or unresolved comparison is part of the record.

→ 13,085.3 kWh from supplied bins

FAQ

Translate an explicit reference capacity and capacity factor into energy over the stated period. Zero production is valid; the capacity factor must already represent the intended delivered-energy boundary. Calculate period energy from documented wind-speed duration bins and an electrical turbine curve. Include calm and cut-out periods, specify period coverage and apply each loss once.

Use the exact equipment data, measurement point, operating conditions and units described in the selected mode. Record source documents, dates and unresolved conditions in Sources and assumptions. Built-in examples illustrate arithmetic; they are not manufacturer ratings or approved designs.

Use Save planning case for an explicit local history entry. Copy MD keeps current inputs and notes; Download CSV exports the result breakdown. Export portable copies before clearing storage and save a separate case after changing equipment, conditions or measurements.

About Wind Energy: Period Factor and Power-Curve Bins

Translate an explicit reference capacity and capacity factor into energy over the stated period. Zero production is valid; the capacity factor must already represent the intended delivered-energy boundary. Calculate period energy from documented wind-speed duration bins and an electrical turbine curve. Include calm and cut-out periods, specify period coverage and apply each loss once.