End-scheme assessment of NESO's Business Plan 2 performance
- Content:
- Decision
- Publication date:
- Topic:
- Electricity transmission, Gas transmission
- Industry sector:
- Transmission Network
- Licence type:
- Electricity System Operator Licence,
- Gas System Planner Licence
The RIIO-2 price control for National Energy System Operator (NESO) covers the period 2021-26. The price control includes two-year business planning and incentives scheme periods, the second of which ran from April 2023 to March 2025.
As part of NESO’s price control, an independent Performance Panel and Ofgem assessed NESO’s performance at the end of each two-year cycle. The Performance Panel’s report has already been published, and its views informed our assessment. This report provides the evidence base underpinning Ofgem’s end-scheme assessment of NESO’s performance during the second Business Plan (BP2) period, 2023-2025. This period included the transition of National Grid Electricity System Operator (NGESO) to NESO, and so our views on NESO’s performance in that transition are included in addition to evidence on NESO’s core performance.
This publication is split into two documents, an executive summary and detailed evidence chapters. For RIIO-2, we integrated our annual assessment of the Electricity Market Reform Delivery Body’s performance of its functions in relation to the Capacity Market within the overall performance assessment process. Our assessment of the EMR DB for 2024/25 is included in Appendix 1 of the evidence chapters.