Sim Gideon — 623 MW gas plant, Bastrop County, TX

Sim Gideon — 623 MW gas plant, Bastrop County, TX · Ask the Grid

Generation and physical site

EIA plant 3601 · Inventory reporting month unavailable.

Reported operating nameplate by technology

Natural gas: 623 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 (3)

EIA generator status and nameplate capacity for selected plant
Generator	Technology	Status	Power (MW)	Energy (MWh)
1	Natural Gas Steam Turbine	Operating	136	Unknown
2	Natural Gas Steam Turbine	Operating	136	Unknown
3	Natural Gas Steam Turbine	Operating	351	Unknown

Sources and observation dates

Inventory source: EIA generator registry
EIA reporting month: Not reported
EIA retrieved: Not reported
OSM extract: Not reported
OSM last mapped edit: Not reported
Map prepared: Not reported
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	136 MW 136 MW summer	Natural Gas Steam Turbine ST	May 1965	Operating
2	136 MW 136 MW summer	Natural Gas Steam Turbine ST	Mar 1968	Operating
3	351 MW 335 MW summer	Natural Gas Steam Turbine ST	May 1972	Operating

Performance

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

Peer context

Technology capacity: 623 MW; Natural Gas Steam Turbine
National rank: #48; of 259 operating peers
TX rank: #12; 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

19.1%

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

3 ERCOT market resources · Gas steam

Generation

3 mo through Aug 27, 2026

Avg output

135 MW

Peak output

540 MW

Capacity factor

25%

Uptime

41%

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 GID_GIDEONG1 over 365 days (2025-10-26 to 2026-10-25). This plant is also crosswalked to GID_GIDEONG2, GID_GIDEONG3; the point with the deepest price history is shown.

Average price: $34.04/MWh
Hourly range: -$31 to $888
Negative price hours: 187
TB2 spread benchmark: $44.4/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.

Parties and identifiers

OrganizationRoleBasis

GIDEON_GIDEONG1, GIDEON_GIDEONG2, GIDEON_GIDEONG3Market resourcesLinked ERCOT resources.

Reporting portfolio

EIA reporting entity

Lower Colorado River Authority

Entity 11269

Operating portfolio

12 plants

1 states

Reported capacity

4,396.1 MW

Conventional Hydroelectric · Conventional Steam Coal · Natural Gas Fired Combined Cycle

Largest reported plants in this portfolio
Largest reported plants	Capacity	State
Fayette Power Project	1,690 MW	TX
Sim GideonCurrent	623 MW	TX
Lost Pines 1 Power Project	609 MW	TX
Thomas C Ferguson	574.6 MW	TX
Timmerman Power Plant	368 MW	TX
Winchester Power Park	242 MW	TX
Marshall Ford	108 MW	TX
Buchanan Dam (TX)	54.9 MW	TX

Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.

View full reporting portfolio

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

May 1965
May 1965
Unit 1 entered serviceEIA May 202...
EIA reports May 1965 for Unit 1; LCRA identifies 1965 as its build year.
Mar 1968
Mar 1968
Unit 2 entered serviceEIA May 202...
EIA reports March 1968 for Unit 2; LCRA identifies 1968 as its build year.
May 1972
May 1972
Unit 3 entered serviceEIA May 202...
EIA reports May 1972 for Unit 3; LCRA identifies 1972 as its build year.
Aug 27, 2026
Aug 27, 2026
Latest disclosed generation interval
ERCOT SCED disclosure is delayed, so plant performance windows end at the latest disclosed interval.

Sources

PublisherReferenceType

U.S. Energy Information AdministrationEIA-860 generator inventoryFederal registry

U.S. Energy Information AdministrationEIA-923 generation filingsFederal filing

ERCOTERCOT 60-Day SCED disclosureMarket disclosure

Common questions about Sim Gideon

Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.

How big is Sim Gideon?

Sim Gideon reports 623 MW natural gas of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Form 860.

What kind of plant is Sim Gideon?

Sim Gideon is a Natural Gas Steam Turbine facility in Bastrop County, TX, participating in the ERCOT market.

Where is Sim Gideon located?

Sim Gideon is in Bastrop County, TX, inside the ERCOT balancing area.

Who operates Sim Gideon?

Sim Gideon is operated by Lower Colorado River Authority according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Sim Gideon generate?

Sim Gideon reported 1,043.1 GWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

Where does Sim Gideon connect to the grid?

Sim Gideon settles at GID_GIDEONG1.

How does Sim Gideon compare to other plants?

By capacity, Sim Gideon ranks #48 of 259 operating plants of the same technology nationally. It ranks #12 of 31 in TX.

Co-located assets

Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.

Lost Pines 1 Power ProjectNatural Gas Fired Combined CycleNatural Gas Fired Combined Cycle · same type609 MW251 m

Overview

Overview

Explore related directories

Infrastructure record

Profile

Structured profile

Generation and physical site

Reported operating nameplate by technology

Related assets

Lost Pines 1 Power Project

Bastrop Energy Center

Sand Hill

Thomas C Ferguson

Colorado Bend Energy Center

O W Sommers