CMP395 BSUoS cap

On 21 September, the Final Modification Report for CMP395 was published by National Grid ESO (NG ESO). CMP395 seeks to cap the half-hourly Balancing Services Use of System charge (BSUoS) at £15/MWh over the winter period (1 October 2022 – 31 March 2023), with the deferred costs recouped in the 2023-24 charging year.

While the impact of such a cap is difficult to predict given the volatility in BSUoS charges, and the number of variable factors which determine the half-hourly charge, using BSUoS figures from winter 2021-22 gives an indicative view of the impact of the cap, which we assess in this ‘Chart of the Week‘.

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