How big is Johnson County?

Johnson County has a reported capacity of 282.6 MW. Source: EIA Form 860.

What kind of plant is Johnson County?

Johnson County is a Natural Gas Fired Combined Cycle facility in Johnson County, TX, participating in the ERCOT market.

Where is Johnson County located?

Johnson County is in Johnson County, TX, inside the ERCOT balancing area.

Who operates Johnson County?

Johnson County is operated by Johnson County Power LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Johnson County generate?

Johnson County reported 1,316.5 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Johnson County compare to other plants?

By capacity, Johnson County ranks #379 of 538 operating plants of the same technology nationally. It ranks #58 of 69 in TX.

Johnson County — 283 MW gas plant, Johnson County, TX

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Johnson County — 283 MW gas plant, Johnson County, TX · Ask the Grid

Overview

Net summer capacity: 277 MW
EIA May 2026
Nameplate capacity: 282.6 MW
Two generators
Net winter capacity: 280 MW
EIA May 2026
Generators: 2
GT-1 · ST-1
Current ultimate owner: NRG Energy
Since Jan 30, 2026
Registry anchor: Plant 54817
Johnson County Power LLC
Resource stack: 1 resource
TEN_CC1_1

Infrastructure record

Operator: Johnson County Power LLC

Profile

Grid role: Dispatchable combined-cycle generation selling into ERCOT.
Capacity scope: 282.6 MW nameplate · 277 MW net summer · 280 MW net winter.
Current ownership: NRG acquired the Linebacker parent portfolio in January 2026.

Structured profile

Net summer capacity: 277 MW
EIA May 2026
Nameplate capacity: 282.6 MW
EIA May 2026
Current project company: Johnson County Power LLC
EIA and SEC
Current ultimate owner: NRG Energy
NRG closing disclosure

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Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
GT-1	178.2 MW 173 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CT	Sep 1996	Operating
ST-1	104.4 MW 104 MW summer	Natural Gas Fired Combined Cycle Natural Gas · CA	Nov 1996	Operating

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 282.6 MW
National rank: #379
TX rank: #58

Monthly generation

Download CSV

Latest 12 months

1.32 TWh

Reported net generation

Latest report

Dec 2024

EIA-923 monthly filing

2024 capacity factor

53.0%

Using current reported nameplate capacity

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Market registration

ERCOT public disclosures

Settlement point

TEN_CC1

high confidence spatial and capacity match

Market resources

1 resource

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Land and environmental record

Coordinate Parcel Area

2025

28 Acres

TxGIO parcel intersecting the mapped EIA plant coordinate; parcel R000071303; JOHNSON APPRAISAL DISTRICT; tax year 2025

TxGIO land parcel intersecting

Coordinate Parcel Id

2025

R000071303

TxGIO parcel intersecting the mapped EIA plant coordinate; parcel R000071303; JOHNSON APPRAISAL DISTRICT; tax year 2025

TxGIO land parcel intersecting

Coordinate Parcel Market Value

2025

427017

TxGIO parcel intersecting the mapped EIA plant coordinate; parcel R000071303; JOHNSON APPRAISAL DISTRICT; tax year 2025

TxGIO land parcel intersecting

Coordinate Parcel Owner

2025

JOHNSON COUNTY POWER LLC

TxGIO parcel intersecting the mapped EIA plant coordinate; parcel R000071303; JOHNSON APPRAISAL DISTRICT; tax year 2025

TxGIO land parcel intersecting

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetProject company

Parties and identifiers

OrganizationRoleBasis

Johnson County Power LLCProject company and EIA registered operatorEIA May 2026 generator inventory

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Sep 1996
Sep 1996
Gas-turbine record entered serviceEIA May 202...
EIA reports September 1996 for GT-1.
Nov 1996
Nov 1996
Steam-turbine record entered service

Overview

Infrastructure record

Profile

Structured profile

Related assets

Ennis Power Company LLC

Paris Energy Center

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Market registration

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Timeline and sources

Project timeline

Denton Energy Center

Trinidad (TX)

Freeport Energy Center

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ERCOT disclosed dispatch

Generation

Output by hourlocal time · 90 days through Jul 14, 2026

Latest disclosed outputhourly · 2 weeks ending Jul 14, 2026

Settlement price economics

Operating context

Nearby substations

Reporting portfolio

Sources

Common questions about Johnson County

How big is Johnson County?

What kind of plant is Johnson County?

Where is Johnson County located?

Who operates Johnson County?

How much electricity does Johnson County generate?

How does Johnson County compare to other plants?

Co-located assets