# Sioux unit 2, MO — planned retirement, EIA data for June 2026

For Sioux unit 2, MO, planned retirement year is 2028; planned retirement month is 12; net summer capacity (mw) is 487; technology is Conventional Steam Coal; fuel code is SUB; operator is Union Electric Co - (MO), verified against its source on 2026-09-24.

- **Plant:** Sioux _(verified: appears in the quote below)_
- **EIA plant ID:** 2107 _(verified: appears in the quote below)_
- **Generator ID:** 2 _(verified: appears in the quote below)_
- **Planned retirement year:** 2028 _(verified: appears in the quote below)_
- **Planned retirement month:** 12 _(verified: appears in the quote below)_
- **Operator:** Union Electric Co - (MO) _(verified: appears in the quote below)_
- **EIA entity ID:** 19436 _(verified: appears in the quote below)_
- **Producer type:** Electric Utility _(verified: appears in the quote below)_
- **State:** MO _(verified: appears in the quote below)_
- **Net summer capacity (MW):** 487 _(verified: appears in the quote below)_
- **Technology:** Conventional Steam Coal _(verified: appears in the quote below)_
- **Fuel code:** SUB _(verified: appears in the quote below)_
- **Prime mover:** ST _(verified: appears in the quote below)_
- **EPM edition:** June 2026 _(verified: appears in its own passage below)_

## What the source says

> 2028 | 12 | 19436 | Union Electric Co - (MO) | Electric Utility | Sioux | MO | 2107 | 2 | 487 | Conventional Steam Coal | SUB | ST

## Where each value comes from

This source states these in separate places, so each value is shown with the passage that states it.

### EPM edition

> Table 1.1. Net Generation by Energy Source: Total (All Sectors), 2016-June 2026

## Source

- https://www.eia.gov/electricity/monthly/archive/august2026.zip

Last verified: 2026-09-24. Review by: 2026-11-03.
Part of [Planned US generating-unit retirements, as EIA published them in one named month's Electric Power Monthly](https://referencesource.org/power-plant-retirement-schedule/).