This is our second combined annual Electricity and gas network performance report. It is a point in time report, covering the regulatory period up to June 2024.
Our network performance reports provide accessible information resources to improve accountability and transparency within regulatory frameworks, thereby encouraging improved performance.
The report sets out our analysis of key outcomes and trends in the operational and financial performance data we collect from regulated electricity and gas networks. Our analysis is focused on the provision of core regulated services. These are:
- Standard control services for electricity distribution networks,
- Prescribed transmission services for electricity transmission networks, and
- Haulage reference services for gas distribution networks.
Analysing network performance against forecasts and benchmarks helps us and others to understand the effectiveness of the regulatory regime; thereby supporting informed engagement, data-driven debate, and continuous improvement. We also provide observations about the shifts from past trends and how these changes interrelate with the energy transition to net zero emissions.
Along with the report we have published the following material that supports our analysis.
- Infographics - summarising key information from the operational and financial performance datasets.
- Financial performance datasets - sets out our calculation and analysis of the profitability measures. There are separate datasets for electricity and gas networks, covering 2014 to 2024 and an illustrative model that uses proxy data to show how we calculate the return on regulated equity.
- The operational performance datasets - sets out key operational performance metrics. There are separate datasets for electricity networks and gas networks. These are a continuation of our performance data publications that began in 2018 and cover regulatory years 2006 to 2024.
- Explanatory notes - detail our calculation and interpretation of the financial performance measures.
The accompanying datasets published alongside this report are provided in Microsoft Excel workbooks.
The report does not include any operational or financial data on the three gas transmission networks. We report on these three gas transmission networks through the operational and financial datasets (Microsoft Excel workbooks) and gas TNSP infographics published alongside this report. Further information is also provided in Appendix B of the report.