On this page you will find reports published by National Grid relating to the commercial operation of the electricity transmission system.
The services reports show the requirements for balancing services and the results of tender assessments. A service by service summary of the cost of balancing services is provided in the monthly balancing services summary (MBSS).
Performance reports include the Winter and Summer outlook reports, the Balancing Mechanism (BM) audit report, The Balancing Principles Audit Report and the Transmission Reliability Performance report
The supplementary reports provide a selection of non-standard reports and presentations covering a range of interesting subjects. These non-standard reports and presentations would have been delivered at industry-wide gatherings such as at the operational forum.
Here you will find monthly and annual reports showing the costs and volumes of balancing services
Here you will find reports on system performance, auditor's report on the BM, Winter and Summer Outlook reports
Winter and Summer Outlook Reports
Access the latest winter and summer outlook reports