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About NESO
Freedom of Information and Environmental Information Regulations
Event : Codes
Special CUSC Panel - 10 March 2025
10:00 am to 11:00 am , 10 March 2025
Special CUSC Panel: Workgroup Report  CMP446 Increasing the lower threshold in England and Wales for Evaluation of Transmission Impact Assessment (TIA)
About NESO
Industry data and reports
Find the latest operational data, forecasts, reports, and support for National Electricity Transmission System (NETS) users.Balancing dataIt's our responsibility to maintain the system frequency…
About NESO
Previous plans and documents
On this page, you can find all previous Forward Plan and RIIO-2 documents.
Document : Systems operation
Daily Report
Daily NESO Report relating to the status of the National Electricity Transmission System (NETS) and factors affecting…
Balancing services
Balancing costs
Strategic planning
North Wales and the Midlands boundaries
The Western transmission region includes boundaries in the Midlands and the north of Wales.This includes the lower midlands boundary B9 and the north Wales boundaries NW1, NW2 and NW3.The map below…
Strategic planning
Electricity transmission network requirements
Great Britain’s NETS must continue to adapt and be developed so power can be transported from source to demand, reliably and efficiently.
Strategic planning
Our ETYS analysis
National Electricity Transmission System (NETS)NESO is responsible for operating the transmission networks in England, Wales, Scotland and in the surrounding offshore waters. The National…
Strategic planning
Electricity Ten Year Statement (ETYS)
The Electricity Ten Year Statement (ETYS) is NESO’s view of future transmission requirements and the capability of Great Britain’s National Electricity Transmission System (NETS) over the next ten…