---
title: "Query unavailable generation units, transmission assets, and load"
method: POST
path: "/api/entsoe/unavailability"
tags: ["ENTSO-E"]
---

# Query unavailable generation units, transmission assets, and load

`POST /api/entsoe/unavailability`

## Request

- Base URL: `https://api.cernion.de`
- URL: `https://api.cernion.de/api/entsoe/unavailability`
- Auth: none declared

✅ FULLY WORKING - Outage monitoring (planned and unplanned), capacity forecasting. Supports production, transmission, and load unavailability types with PSR type filtering.

## Query parameters

- `token` string

## Request body

- object
  - `region` string, required: Country/bidding zone name
  - `dateFrom` string, required: Start date (ISO 8601, YYYYMMDD, or DD.MM.YYYY)
  - `dateTo` string, required: End date
  - `unavailabilityType` 'production' | 'transmission' | 'load' | 'all': Type of unavailability to query
  - `psrType` string: Optional PSR type filter (e.g., B16 for Solar, B19 for Wind)
  - `includeStatistics` boolean
  - `format` 'json' | 'csv' | 'xlsx' | 'xls': Output format. "csv" and "xls"/"xlsx" trigger a file download.
  - `token` string: Optional Cernion MCP token for this request. Overrides CERNION_TOKEN when provided.

## Response `200`

Successful response with unavailability data

- object
  - `success` boolean
  - `region` string
  - `eicCode` string
  - `period` object
    - `from` string
    - `to` string
  - `unavailabilityTypes` string[]
  - `unavailabilities` object[]
    - `timestamp` string
    - `psrType` string
    - `unavailableMW` number
    - `businessType` string
  - `statistics` object
  - `metadata` object
    - `source` string
    - `documentTypes` string[]
    - `queryTime` string
    - `dataPoints` integer
    - `toolName` string
    - `timestamp` string

---

[API](https://skmtc.dev/cernion/apis/cernion-energy-tools-api.md) · [All operations](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/llms.txt) · [OpenAPI document](https://skmtc.dev/cernion/apis/cernion-energy-tools-api/revisions/cdb94473b538?raw)