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How to Manage Electricity Imbalance Costs

Imbalance is the difference between a market participant's scheduled energy position and measured physical delivery. Its cost depends not only on forecast accuracy but also on the relationship between the deviation and system direction under settlement rules.

Published: 6 min readSTR Energy
1

Where does imbalance come from?

Renewable forecast errors, meter delays, unexpected outages and production-plan changes are common causes. Segmenting deviations by site, portfolio and settlement period separates recurring operational causes from one-off events.

2

Intraday correction and portfolio effects

Updated forecasts can inform position corrections in the intraday market. Managing multiple assets in one portfolio may allow opposing deviations to offset each other, but the effect must be verified using aligned metering intervals.

3

The right performance indicators

Track absolute deviation, normalised error, correction ratio and on-time data alongside total cost. The objective is not merely to minimise deviation, but to improve total portfolio performance after forecasting and trading costs.

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