# Lake Catherine unit 4, AR — planned retirement, EIA data for April 2026

For Lake Catherine unit 4, AR, planned retirement year is 2027; planned retirement month is 6; net summer capacity (mw) is 522.0; technology is Natural Gas Steam Turbine; fuel code is NG; operator is Entergy Arkansas LLC, verified against its source on 2026-10-16.

- **Plant:** Lake Catherine _(verified: appears in the quote below)_
- **EIA plant ID:** 170 _(verified: appears in the quote below)_
- **Generator ID:** 4 _(verified: appears in the quote below)_
- **Planned retirement year:** 2027 _(verified: appears in the quote below)_
- **Planned retirement month:** 6 _(verified: appears in the quote below)_
- **Superseded by:** Planned retirement has moved to 12/2027. EIA's 'Inventory of Operating Generators as of July 2026' gives 12/2027 for this unit, not the 6/2027 this edition of the Electric Power Monthly printed. Read from the permanent archived copy at https://www.eia.gov/electricity/data/eia860m/archive/xls/july_generator2026.xlsx. This dataset's own June 2026 edition already printed 12/2027 for the same unit. _(our reading, not quoted from the source)_
- **Operator:** Entergy Arkansas LLC _(verified: appears in the quote below)_
- **EIA entity ID:** 814 _(verified: appears in the quote below)_
- **Producer type:** Electric Utility _(verified: appears in the quote below)_
- **State:** AR _(verified: appears in the quote below)_
- **Net summer capacity (MW):** 522.0 _(verified: appears in the quote below)_
- **Technology:** Natural Gas Steam Turbine _(verified: appears in the quote below)_
- **Fuel code:** NG _(verified: appears in the quote below)_
- **Prime mover:** ST _(verified: appears in the quote below)_
- **EPM edition:** April 2026 _(verified: appears in its own passage below)_

## What the source says

> 2027 6 814 Entergy Arkansas LLC Electric Utility Lake Catherine AR 170 4 522.0 Natural Gas Steam Turbine NG 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-April 2026

## Source

- https://www.eia.gov/electricity/monthly/archive/june2026.pdf

Last verified: 2026-10-16. Review by: 2026-11-25.
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/).