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Asset Limits (Pre-Event & Transmission Distribution Limits)

Pre-event Limits (PELs)

For each branch the forward and reverse pre-event limit (MVA) of each asset within an ANM zone are provided. PELs are provided rather than the asset’s rating to reflect how NGED’s ANM system works. Please see the guidance document linked below for further information.

Transmission Distribution Limits

For each GSP the Transmission Distribution boundary limits are provided for Technical Limit and SGT Forward/Reverse Power Flow restrictions where they exist.

https://dso.nationalgrid.co.uk/curtailment-analysis-data-usage-guidance

Data Files

Name Format Last Changed Download
TD Limits parquet
19 hours ago
Explore
Pre-event Limits parquet
19 hours ago
Explore
Data Sharing Assessment - Asset Ratings and... xlsm
10 hours ago
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Additional Info

Field Value
Uploaded Date November 26, 2025, 09:11 (UTC)
Creator National Grid Electricity Distribution
Created Date November 26, 2025, 00:00 (UTC)
Rights NGED Open Data Licence
Coverage All Regions
Contributor Digitalisation & Data
Identifier PELTD
Publisher DSO
Language EN
Data Classification Open
Update Frequency 12 Months
Expiration Date November 26, 2026, 00:00 (UTC)

Tags

Integrate this dataset using cURL

# Get a list of dataset's resources

curl -L -s https://connecteddata.nationalgrid.co.uk/dataset/asset-limits-pre-event-transmission-distribution-limits/datapackage.json | grep path

# Get resources

curl -L https://connecteddata.nationalgrid.co.uk/dataset/6ba6dd4f-5473-4180-a950-6aec1ae30e76/resource/636f4237-2e86-4f99-83ec-9abfe5a203c5/download/58_berkswell_td_limits.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/6ba6dd4f-5473-4180-a950-6aec1ae30e76/resource/cdd57fa2-f182-41b7-9eff-416504a9c5aa/download/58_berkswell_pre-event_limits.zip
curl -L https://connecteddata.nationalgrid.co.uk/dataset/6ba6dd4f-5473-4180-a950-6aec1ae30e76/resource/b1645cc0-14de-4ee9-bbe8-58d95e3a0c57/download/data-sharing-assessment-asset-ratings-and-pre-event-limits.xlsm