---
title: "Installed Generation Capacity per Unit (IGCPU / B1420) stream"
method: GET
path: "/datasets/IGCPU/stream"
tags: ["BMRS Datasets"]
---

# Installed Generation Capacity per Unit (IGCPU / B1420) stream

`GET /datasets/IGCPU/stream`

This endpoint provides information about production units (existing and planned)
with an installed generation capacity equaling to or exceeding 100 MW. 
            
The database was populated from a data dump lacking publishTime values,
all entries were assigned a default publishTime of 2023-01-01 00:00 during the migration.

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

## Query parameters

- `publishDateTimeFrom` string, date-time, required
- `publishDateTimeTo` string, date-time, required

## Response `200`

Data retrieved

- InsightsApiModelsResponsesTransparencyDatasetRowsIgcpuDatasetRow[]
  - `dataset` string, nullable
  - `documentId` string, nullable
  - `publishTime` string, date-time
  - `effectiveFrom` string, date
  - `psrType` string, nullable
  - `registeredResourceEicCode` string, nullable
  - `registeredResourceName` string, nullable
  - `bmUnit` string, nullable
  - `voltageLimit` number, double, nullable
  - `installedCapacity` number, double

## Other responses

- `400` — Error with query parameters - see response for details
- `429` — Too many requests
- `500` — Server error - please try again later

---

[API](https://skmtc.net/elexon/apis/bmrs-insights.md) · [All operations](https://skmtc.net/elexon/apis/bmrs-insights/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/elexon/bmrs-insights/versions/d94e9edb295e/schema)