End-scheme assessment of NESO's Business Plan 2 performance
Summary
Ofgem end-scheme assessment of NESO's Business Plan 2 performance. Final assessment of the predecessor ESO's performance under the BP2 scheme before the BP3 transition.
Why it matters
Closes the BP2 chapter. Performance assessment determines final incentive payments and informs lessons learned for BP3. Companion to the August 2024 mid-scheme assessment.
Areas affected
Memo
End-scheme assessment of NESO's Business Plan 2 performance | Ofgem Please enable JavaScript in your web browser to get the best experience. BETA This site is currently in BETA. Help us improve by giving us your feedback . Close alert: End-scheme assessment of NESO's Business Plan 2 performance Publication type: Decision Publication date: 5 September 2025 Topic: Electricity transmission, Gas transmission, National Energy System Operator (NESO) Subtopic: Connections Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn 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. Main document End-scheme assessment of NESO's Business Plan 2 performance - Executive summary [PDF, 145.66KB] Subsidiary documents End-scheme assessment of NESO's Business Plan 2 performance - Evidence chapters [PDF, 364.89KB] Print this page Share the page Share on Facebook Share on Twitter Share on LinkedIn Close