Archived IFA DA & ID Weekly ITLs

NGESO’s Network Transfer Capacity restrictions submitted to Day-ahead and Intraday auctions.

NOTE: As part of our ongoing efforts to align with data management best practices and improve consistency across datasets, the below column ids for this datafile will be updated on 14th October 2026 as follows:
Operational Date (YYYY-MM-DD) & Time GMT/BST (HH:MM - HH:MM) → Operational Date and Time GMT_BST
Flow (MW) To GB → Flow in MW To GB
Flow (MW) From GB → Flow in MW To GB

CKAN Data API

Access resource data via a web API with powerful query support.
Further information in the main CKAN Data API and DataStore documentation.

The Data API can be accessed via the following actions of the CKAN action API.

Query
`https://api.neso.energy/api/3/action/datastore_search`
Query (via SQL)
`https://api.neso.energy/api/3/action/datastore_search_sql`

Query example (first 5 results)
`https://api.neso.energy/api/3/action/datastore_search?resource_id=2b38e754-a92e-4383-827d-5e6c10c882b0&limit=5`
Query example (via SQL statement)
`https://api.neso.energy/api/3/action/datastore_search_sql?sql=SELECT * from "2b38e754-a92e-4383-827d-5e6c10c882b0" LIMIT 5`

A simple ajax (JSONP) request to the data API using jQuery.

var data = {
  resource_id: '2b38e754-a92e-4383-827d-5e6c10c882b0', // the resource id
  limit: 5 // get 5 results
};
$.ajax({
  url: 'https://api.neso.energy/api/3/action/datastore_search',
  data: data,
  dataType: 'jsonp',
  success: function(data) {
    alert('Total results found: ' + data.result.total)
  }
});

A simple ajax (JSONP) request to the data API using jQuery.

import urllib2
  url = 'https://api.neso.energy/api/3/action/datastore_search?resource_id=2b38e754-a92e-4383-827d-5e6c10c882b0&limit=5'
  fileobj = urllib2.urlopen(url)
  print fileobj.read()

Download (CSV)

Data Explorer

Table Information

Operational Date and Time GMT_BST

Title	Operational Date (YYYY-MM-DD) & Time GMT/BST (HH:MM - HH:MM)
Type	string
Description	Operational Date and time for which restriction applies.
Comment	Operational Date and time for which restriction applies.
Example	20221214 23:00 - 00:00
Unit	N/A

Flow in MW to GB

Title	Flow (MW) To GB
Type	number
Description	Maximum flow in this direction
Comment	Maximum flow in this direction
Example	500
Unit	MW

Flow in MW from GB

Title	Flow (MW) From GB
Type	number
Description	Maximum flow in this direction
Comment	Maximum flow in this direction
Example	500
Unit	MW

Reason for restriction

Title	Reason For Reduction
Type	string
Description	Reason for NTC restriction
Comment	Reason for NTC restriction
Example	test reason
Unit	N/A

You are now signed in

Archived IFA DA & ID Weekly ITLs

CKAN Data API

Data Explorer

Data Explorer

Table Information

Operational Date and Time GMT_BST

Flow in MW to GB

Flow in MW from GB

Reason for restriction