v1

latestOpenAPI 3.0.42026-07-233182951.4 MB

BMRS Datasets

Loss of load probability and de-rated margin (LOLPDRM)

The loss of load probability and de-rated margin data is received half-hourly from NGESO.

Loss of load probability (LoLP) is a measure of system reliability, calculated by NGESO for each settlement period, using the methodology set out in the Loss of Load Probability Calculation Statement.

De-rated margin is a forecast of the excess supply on the system, which has been adjusted to take account of the likely availability of electricity generators.

This endpoint has an optimised JSON payload and is aimed at frequent requests for the data.

get/datasets/LOLPDRM/stream

Query parameters

publishDateTimeFromstring date-time required

Example:2023-03-06T07:00Z

publishDateTimeTostring date-time required

Example:2023-03-06T12:00Z

Response

Data retrieved

datasetstring nullable

publishTimestring date-time

publishingPeriodCommencingTimestring date-time

startTimestring date-time

settlementDatestring date

settlementPeriodinteger

lossOfLoadProbabilitynumber double nullable

deratedMarginnumber double nullable

Example response

[
  {
    "dataset": "LOLPDRM",
    "publishTime": "2023-01-31 17:39:15Z",
    "publishingPeriodCommencingTime": "2023-01-31 17:30Z",
    "startTime": "2023-01-31 18:30Z",
    "settlementDate": "2023-01-31",
    "settlementPeriod": 38,
    "deratedMargin": 12570.207
  }
]