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Distribution Network Options Assessment (DNOA)

The Distribution Network Options Assessment (DNOA) represents the optioneering phase of the investment planning process, which is the third and final step. More details on its purpose and methodology can be found at National Grid - Distribution Network Options Assessment, alongside the latest published reports.

The data files below provide summaries of current and past DNOA publications, in tabular format. Information includes where the constraints are on the network, when they are expected to occur, the Constraint Management Zone (CMZ) unique identifier where applicable, and the investment decision outcome.

Information on flexibility requirements for active constraints can be accessed at Flexibility – Requirements - Dataset - National Grid's Connected Data Portal.

Data Files

Name Format Last Changed Download
DNOA August 2022 csv
1 month ago
DNOA February 2023 csv
1 month ago
DNOA August 2023 csv
1 month ago
Data Sharing Assessment pdf
1 month ago

Additional Info

Field Value
Uploaded Date September 6, 2022, 10:15 (UTC)
Creator National Grid Electricity Distribution
Rights NGED Open Data Licence
Coverage All Regions
Contributor Network Strategy
Language EN
Data Classification Open
Update Frequency Near Real Time

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