Graham reports 634.7 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.

What kind of plant is Graham?

Graham is a Natural Gas Steam Turbine facility in Young County, TX, participating in the ERCOT market.

Where is Graham located?

Graham is in Young County, TX, inside the ERCOT balancing area.

Graham is operated by Luminant Generation Company LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Graham generate?

Graham reported 1,041.9 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Graham compare to other plants?

By capacity, Graham ranks #45 of 259 operating plants of the same technology nationally. It ranks #11 of 31 in TX.

Graham — 635 MW gas plant, Young County, TX

Ask the Grid

Create free workspace

Ask the Grid

Create free workspace

Graham — 635 MW gas plant, Young County, TX · Ask the Grid

Generation and physical site

EIA plant 3490 · Inventory for Sep 2026.

Reported operating nameplate by technology

Natural gas: 634.7 MW

Operating generators only. Battery power is in MW; stored energy is in MWh. These ratings do not establish a shared export limit.

Generator records (2)

EIA generator status and nameplate capacity for Graham
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Natural Gas Steam Turbine	Operating	247.7	Unknown
2	Natural Gas Steam Turbine	Operating	387	Unknown

Physical map location · OpenStreetMap: 33.13584, -98.61222
Filed location · EIA: 33.13440, -98.61170

Sources and observation dates

Inventory source: EIA-860M workbook (preliminary)
EIA reporting month: Sep 2026
EIA retrieved: Oct 24, 2026
OSM extract: Oct 9, 2026
OSM last mapped edit: Jan 25, 2023
Map prepared: Oct 24, 2026
Field verification: Not reported

Reporting month describes the inventory. Retrieval and map preparation describe processing; an OSM edit does not establish an in-service date.

EIA source inventory

Units and generators

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

Generator	Capacity	Technology	Operation	Status
1	247.7 MW 239 MW summer	Natural Gas Steam Turbine ST	Dec 1960	Operating
2	387 MW 395 MW summer	Natural Gas Steam Turbine ST	Jun 1969	Operating

Performance

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

Peer context

Technology capacity: 634.7 MW; Natural Gas Steam Turbine
National rank: #45; of 259 operating peers
TX rank: #11; of 31 operating peers

Monthly generation

Download CSV

Latest 12 months

1.04 TWh

Reported net generation

Latest report

Dec 2024

EIA-923 monthly filing

2024 capacity factor

18.7%

Using current reported nameplate capacity

Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.

ERCOT disclosed dispatch

2 ERCOT market resources · Gas steam

Generation

3 mo through Aug 27, 2026

Avg output

83 MW

Peak output

625 MW

Capacity factor

13%

Uptime

25%

Capacity factor is average output vs. this plant's observed peak.

Output by hourlocal time · 90 days through Aug 27, 2026

0:006:0012:0018:0024:00

Latest disclosed outputhourly · 2 weeks ending Aug 27, 2026

Generation from ERCOT's 60-Day SCED Disclosure (≈60-day lag), summed over this site's market resources.

Settlement price economics

Observed ERCOT settlement prices at GRSES_UNIT1 over 365 days (2025-10-26 to 2026-10-25). This plant is also crosswalked to GRSES_UNIT2; the point with the deepest price history is shown.

Average price: $27.88/MWh
Hourly range: -$254 to $1,230
Negative price hours: 1,117
TB2 spread benchmark: $53.0/kW-yr

The TB2 figure is a price benchmark, not revenue: it values one perfect-foresight cycle per day between the 2 cheapest and 2 dearest hours of each day, gross of round-trip losses, and excludes ancillary services and any physical dispatch constraint. It describes what this node’s price shape was worth over the window — it is not this asset’s realized capture, and no dispatch is assumed or modelled.

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.

AssetOwner / operator

Parties and identifiers

OrganizationRoleBasis

Luminant Generation Company LLCOperatorOperator for Graham

GRSES_UNIT1, GRSES_UNIT2Market resourcesLinked ERCOT resources.

Reporting portfolio

EIA reporting entity

Luminant Generation Company LLC

Entity 55983

Operating portfolio

13 plants

2 states

Reported capacity

11,291.7 MW

Batteries · Conventional Steam Coal · Natural Gas Fired Combined Cycle

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Comanche Peak	2,430 MW	TX
Martin Lake	2,379.6 MW	TX
Oak Grove (TX)	1,795.4 MW	TX
Lake Hubbard	927.5 MW	TX
Stryker Creek	713.4 MW	TX
GrahamCurrent	634.7 MW	TX

Overview

Overview

Explore related directories

Infrastructure record

Profile

Structured profile

Generation and physical site

Reported operating nameplate by technology

Related assets

R W Miller

Wise County Power LLC

Wolf Hollow I LP

Mountain Creek

Sim Gideon

Thad Hill Energy Center

Units and generators

Performance

Peer context

Monthly generation

ERCOT disclosed dispatch

Generation

Output by hourlocal time · 90 days through Aug 27, 2026

Latest disclosed outputhourly · 2 weeks ending Aug 27, 2026

Settlement price economics

Grid and market context

Market registration

Operating context

Nearby substations

Commercial, land, and environmental record

Land and environmental record

Related parties and identifiers

Relationship graph

Parties and identifiers

Reporting portfolio

Timeline and sources

Project timeline

Sources

Common questions about Graham

How big is Graham?

What kind of plant is Graham?

Where is Graham located?

Who operates Graham?

How much electricity does Graham generate?

Where does Graham connect to the grid?

How does Graham compare to other plants?

Co-located assets

Explore related directories