---
title: "List Miso Active Outages"
method: GET
path: "/outages/miso/active"
tags: ["Outages"]
---

# List Miso Active Outages

`GET /outages/miso/active`

## Request

- Base URL: `https://api.gridstatus.io/v1`
- URL: `https://api.gridstatus.io/v1/outages/miso/active`
- Auth: none declared
- TypeScript: <https://skmtc.dev/gridstatus/apis/grid-status-api/docs/outages/miso/active/get.ts> (a function with typed inputs; its response is checked against the schema)

List MISO transmission outages for a fixed-EST map day.

## Query parameters

- `start_time` string, date-time, required: Inclusive start of a half-open window (ISO 8601, UTC). A past fixed-EST day returns historical outages, real-time outages whose out-of-service interval covers that day, and planned outages that have actually started and whose actual interval covers that day. Today returns planned and real-time outages. A planned outage today overlaps on its actual interval when it has started, and on its planned window otherwise. A future day returns planned outages on their planned window.
- `end_time` string, date-time, required: Exclusive end of a half-open window (ISO 8601, UTC).
- `start_date` string, date-time, nullable: Optional inclusive lower bound on the outage's displayed start (ISO 8601, UTC).
- `limit` integer: Maximum number of outage requests or real-time rows to return.
- `api_key` string, nullable: API key for authentication (query)

## Headers

- `x-api-key` string, nullable: API key for authentication (header)

## Response `200`

Successful Response

- MISOActiveOutagesResponse
  - `truncated` boolean, required
  - `outages` MISOActiveOutage[], required
    - `source` 'planned' | 'historical' | 'real_time', required
    - `row_id` string, required
    - `outage_request_id` string, nullable
    - `change_time_utc` string, date-time, required
    - `company` string, nullable
    - `kv` number, nullable
    - `from_station` string, nullable
    - `to_station` string, nullable
    - `equipment_name` string, nullable
    - `common_name` string, nullable
    - `equipment_type` string, nullable
    - `priority` string, nullable
    - `request_status` string, nullable
    - `equipment_request_type` string, nullable
    - `planned_start_date_utc` string, date-time, nullable
    - `planned_end_date_utc` string, date-time, nullable
    - `actual_start_date_utc` string, date-time, nullable
    - `actual_end_date_utc` string, date-time, nullable
    - `time_out_of_service_utc` string, date-time, nullable
    - `current_interval_start_utc` string, date-time, required
    - `current_interval_end_utc` string, date-time, nullable
    - `from_substation` SubstationLocation: Lat/lon and display name for a substation.
      - `latitude` number, required
      - `longitude` number, required
      - `name` string, required
    - `to_substation` SubstationLocation: Lat/lon and display name for a substation.
      - `latitude` number, required
      - `longitude` number, required
      - `name` string, required

## Other responses

- `422`: Validation Error

## Changes

- **2026-10-23** `52a625380822`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/gridstatus/apis/grid-status-api/changes/outages/miso/active/get.md)

---

[API](https://skmtc.dev/gridstatus/apis/grid-status-api.md) - [All operations](https://skmtc.dev/gridstatus/apis/grid-status-api/llms.txt) - [OpenAPI document](https://skmtc.dev/gridstatus/apis/grid-status-api/revisions/7bd80b24a469?raw)