v1
latestOpenAPI 3.0.0BSD License2026-07-24228233924.5 KBLive Balancing Mechanism
Live Detailed System Price
Details of every balancing action taken by National Grid ESO in the Balancing Mechanism for each settlement period. Includes fields used to calculate system price and NIV. For the current settlement period, this dataset represents all the actions taken so far by National Grid ESO, and is not a forecast for the end of the settlement period. This endpoint is deprecated, and any missing data will not be backfilled.
get/gb/modo/markets/detailed-system-price-live
Query parameters
date_fromstring date required
Start date for the request. Ex: yyyy-mm-dd
date_tostring date required
End date for the request. Ex: yyyy-mm-dd
settlement_periodinteger
The half hour of the day, in local time. It runs from 1-48 on most days (but 1-50 and 1-46 on clock change days)
limitinteger
Number of results to return per page.
offsetinteger
The initial index from which to return the results.
Response
Success