On Thursday 27 July, National Grid Electricity System Operator (NGESO) published its response letter proceeding the Electricity Storage Network’s (ESN’s) open letter calling for reforms to the Balancing Mechanism (BM). In its letter, ESN highlighted its concerns about NGESO’s current approach in delivering on its ambitions and the legacy systems and manual processes in the control room are putting an upward pressure on balancing costs for consumers, as well as contributing to higher carbon emissions. The ESN concluded the letter by suggesting the improvements to the following: the development of the Open Balancing Platform through the Balancing Programme reportedly to launch in December 2023; a new battery zone in BM as of May 2023, and the Balancing Programme Storage Stakeholder Group. In response, NGESO noted that its delivery roadmap has been reviewed with the inclusion of the Battery zone for Release 1 in OBP being prioritised for December 2023. Additionally, NGESO is taking a proposal for Grid Code changes to support new parameters for limited duration assets such as batteries to the Grid Code Development Forum on 2 August.
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