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Wind Battery: Lull Energy and Hybrid Dispatch

Size battery energy for a supplied lull, or follow chronological wind, solar and load with SOC limits, unmet demand and required wind diversion.

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Inputs that matter
Chronological DC-bus intervals, Starting SOC (%), Minimum allowed SOC (%), Available capacity fraction (%), and 10 more
Output to expect
Battery energy for a specified wind lull, Chronological wind, solar and battery dispatch
  • 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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Reference & details

How it works

Battery energy for a specified wind lull

Size nominal battery energy for the positive load deficits in an explicit lull profile. Use the available capacity fraction, starting SOC, minimum SOC and discharge efficiency; surplus intervals are deliberately not credited as recharge in this sizing case.

Deficit Wh = Σ max(load−wind−solar,0) × hours; nominal Wh = deficit Wh / [discharge efficiency × available-capacity fraction × (starting SOC−minimum SOC)].

Chronological wind, solar and battery dispatch

Follow a supplied sequence of DC-bus wind, solar and load powers with battery SOC and charge/discharge limits. Track unmet load, solar curtailment and surplus wind requiring diversion; a zero-capacity case represents no battery.

For each interval: sources serve load; surplus charges within bus-power and SOC limits; deficits discharge within bus-power and SOC limits. Stored gain = charging bus Wh × efficiency; stored withdrawal = discharge bus Wh / efficiency.

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.

→ 26,190.47619 Wh nominal battery energy for supplied lull

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.

→ 0 Wh unmet load in supplied sequence

FAQ

Size nominal battery energy for the positive load deficits in an explicit lull profile. Use the available capacity fraction, starting SOC, minimum SOC and discharge efficiency; surplus intervals are deliberately not credited as recharge in this sizing case. Follow a supplied sequence of DC-bus wind, solar and load powers with battery SOC and charge/discharge limits. Track unmet load, solar curtailment and surplus wind requiring diversion; a zero-capacity case represents no battery.

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 Battery: Lull Energy and Hybrid Dispatch

Size nominal battery energy for the positive load deficits in an explicit lull profile. Use the available capacity fraction, starting SOC, minimum SOC and discharge efficiency; surplus intervals are deliberately not credited as recharge in this sizing case. Follow a supplied sequence of DC-bus wind, solar and load powers with battery SOC and charge/discharge limits. Track unmet load, solar curtailment and surplus wind requiring diversion; a zero-capacity case represents no battery.