ResDelta Wind Imbalance Index · monthly

Imbalance cost per unit of wind generation. A comparable monthly diagnostic.

2,220

USD/MWh

Imbalance and KÜPST cost for 291 UEVÇB units, divided by every MWh they generated.

This is not a savings claim. It is not a forecast or model output and does not depend on a metering-latency assumption.

Measurement window: August 2026 (full month) · 744 hours per UEVÇB

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dengesizlik_dagilim.csvanonymous UEVÇB distribution

October 2026 issue·published 10 October 2026·method version 1.3.0·next: 2 November 2026

Distribution across UEVÇB units

2,310

median · USD/MWh

1,439–3,981

P10–P90 · USD/MWh

0,582

lowest · USD/MWh

11,605

highest · USD/MWh

UEVÇB identities are not published. The thick range is P10–P90; the vertical line is the median. Lower means less cost per unit of generation.

Calculation

Sources are EPİAŞ’s public DPP, UEVM injection quantity, MCP and SMP series. All wind plants in the EPİAŞ UEVM list are consolidated by UEVÇB; the frozen basket contains 291 units and covers 94.2% of system wind generation in the measurement month. Current settlement and KÜPST costs are divided by total generation.

4.611.614

MWh total generation

10.236.860

USD total cost

744

hours per UEVÇB

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Publication limits

The monthly series starts with August 2026 under method 1.3.0. The September 2026 issue came from a different window, so it is not appended to the series and the two figures are not comparable.

Plant identities are not published; losing observations remain in the analysis.

Avoidable-cost estimate

The avoidable-cost estimate has been withdrawn from publication. The difference between the plan version available at decision time and the subsequently corrected plan has been measured (the plan changes in approximately half of plant-hours). The estimate will be recalculated with this difference; until a new result is published, this page presents only the measured cost index.