Coleto Creek
Goliad CountyERCOT
Overview
- Reported capacity
- 622.4 MW
- EIA-reported nameplate capacity; other nameplate and seasonal ratings may differ.
- Technology
- Conventional Steam Coal
- Primary generation technology.
- Registry anchor
- Plant 6178
- Goliad County · ERCOT
- Operating status
- Operating
- Coleto Creek is currently operating; coal operations are scheduled to cease by 2027, with repower the retiring coal facility on-site as a natural-gas-fueled dispatchable plant, with approximately 600–630 MW of capacity.
- Grid connection
- Coleto Creek Power Station / Coleto Creek station
- 345 kV · South Texas Electric Cooperative (STEC)
- Resource stack
- 1 resource
- COLETO_COLETOG1
- Settlement point
- COL_COLETOG1
- ERCOT settlement point.
Infrastructure record
- Operator
- Coleto Creek Power LP
- Alternate name
- Coleto Creek Power Station
- Mapped facility footprint
- Mapped infrastructure footprint
Mapped infrastructure geometry associated with this asset.
- In service
- 1980-06
Profile
- Operating status
- Coleto Creek is currently operating; coal operations are scheduled to cease by 2027, with repower the retiring coal facility on-site as a natural-gas-fueled dispatchable plant, with approximately 600–630 MW of capacity.
- Grid role
- Dispatchable thermal generation
- Grid connection
- Coleto Creek Power Station / Coleto Creek station · 345 kV · South Texas Electric Cooperative (STEC).
- Physical build
- One 622.4 MW coal-fired conventional steam unit, generator 1, commissioned in 1980, consisting of one reported 555 MW General Electric tandem-compound turbine/generator set powered by one Combustion Engineering tangential-fired dry-bottom boiler.
Structured profile
- Reported capacity
- 622.4 MW
Conventional Steam Coal
- Operating status
- operating
Coleto Creek is currently operating; coal operations are scheduled to cease by 2027, with repower the retiring coal facility on-site as a natural-gas-fueled dispatchable plant, with approximately 600–630 MW of capacity.
- Retirement
- 2027
Coleto Creek is currently operating; coal operations are scheduled to cease by 2027, with repower the retiring coal facility on-site as a natural-gas-fueled dispatchable plant, with approximately 600–630 MW of capacity.
- Interconnection
- Coleto Creek Power Station / Coleto Creek station
345 kV · South Texas Electric Cooperative (STEC)
Generation and physical site
EIA plant 6178 · Inventory for Sep 2026.
Reported operating nameplate by technology
- Coal
- 622.4 MW
Generator records (1)
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 1 | Conventional Steam Coal | Operating | 622.4 | Unknown |
- Physical map location · OpenStreetMap
- 28.72214, -97.21498
- Filed location · EIA
- 28.71280, -97.21417
Sources and observation dates
Related assets
Similar plants ranked by technology, capacity, and distance.
Units and generators
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 1 | 622.4 MW 655 MW summer | Conventional Steam Coal ST | Jun 1980 | Operating |
Performance
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Peer context
- Technology capacity
- 622.4 MW
- Conventional Steam Coal
- National rank
- #105
- of 205 operating peers
- TX rank
- #9
- of 11 operating peers
Monthly generation
Download CSVLatest 12 months
2.8 TWh
Reported net generation
Latest report
Jul 2026
EIA-923 monthly filing
2025 capacity factor
56.8%
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 disclosuresCommercial, land, and environmental record
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Financing
Planned Project Debt Financing
Dec 28, 2006
Goldman Sachs and Credit Suisse restructured and sweetened terms on a $1.17 billion term loan B intended to finance American National Power's planned acquisition of the Coleto Creek generation facility. Note: This transaction does not appear to have closed; International Power acquired Coleto Creek in July 2006.
$1.2BAmerican National Power · Goldman Sachs · Credit Suisse
Transactions and agreements
Asset Ownership Acquisition
Feb 2017
A subsidiary of Dynegy Inc. acquired all ownership interests in Coleto Creek Power LP as part of ENGIE's U.S. generation portfolio acquisition. No Coleto Creek-specific consideration disclosed.
Dynegy Inc. · Coleto Creek Power LP
Land and environmental record
Air Permit Fuel Specifications
Feb 13, 2012
Permit 3687 and PSDTX9M1 apply to the Coleto Creek Power Station; solid fuels limited to specified coal or coal/petcoke blends with sulfur content ≤ 0.7% by weight
TCEQ and EPA permit records specify fuel quality limits including chlorine ≤ 0.1%, ash ≤ 20.8%, silica ≤ 65%, and total metals ≤ 0.25% by weight. No. 2 fuel oil authorized only during startup, shutdown, and flame stabilization.
Air Permit
Permit No. 114970
TCEQ AIR NEW SOURCE PERMITS; REGISTRATION; status ACTIVE
Air Permit
Permit No. 173550
TCEQ AIR NEW SOURCE PERMITS; REGISTRATION; status ACTIVE
Air Permit
Permit No. 179653
TCEQ AIR NEW SOURCE PERMITS; REGISTRATION; status ACTIVE
Air Permit
Permit No. 25
TCEQ AIR OPERATING PERMITS; PERMIT; status PENDING
Air Permit
Permit No. 3687
TCEQ AIR NEW SOURCE PERMITS; PERMIT; status ACTIVE
Air Permit
Feb 13, 2012
Permit No. 3687
TCEQ AIR NEW SOURCE PERMIT; status ACTIVE. State air quality permit for Unit 1 coal-fired boiler. Limits solid fuels to specified coal or coal/petcoke blends with sulfur content ≤ 0.7% by weight.
Air Permit
Permit No. 80936
TCEQ AIR NEW SOURCE PERMITS; REGISTRATION; status ACTIVE
Air Permit
Permit No. PSDTX9
TCEQ AIR NEW SOURCE PERMITS; EPA PERMIT; status ACTIVE
Air Permit
Permit No. PSDTX9M1
TCEQ AIR NEW SOURCE PERMITS; EPA PERMIT; status ACTIVE
Cooling-Water Discharge
The plant discharges approximately 360,000 gallons per minute to Coleto Creek Reservoir; discharge temperature limit is 108°F
Watershed record describes the reservoir as the plant's cooling pond and reports the approximate discharge flow and thermal limit.
Coordinate Parcel Id
2025
5462794
TxGIO parcel intersecting the mapped EIA plant coordinate; parcel 5462794; GOLIAD APPRAISAL DISTRICT; tax year 2025
County Appraisal Record
Coleto Creek Power LP appears in the Goliad County Appraisal District property-search index.
The public county appraisal search identifies Coleto Creek Power LP, but the retrieved index did not expose parcel numbers, individual parcel acreage, deed information, or a complete ownership schedule.
Emissions Control Equipment
2007
Baghouse installation completed in 2007; replaced electrostatic precipitator (ESP)
Regulatory records and EPA correspondence state that the ESP was retired and a baghouse was installed in 2007 for particulate matter control.
Emissions Data
2018
Unit 1 NOx emissions 0.1292 lb/MMBtu (2,691.94 tons annually); SO2 emissions 0.6424 lb/MMBtu (13,212.65 tons annually) per 2018 AMPD data
Permit condition records document coal-fuel specifications and report emissions data from 2018 EIA/AMPD. Heat input 41,137,930 MMBtu annually.
Environmental Program Id
0880005
TCEQ PUBLIC WATER SYSTEM/SUPPLY; REGISTRATION; status ACTIVE
Environmental Program Id
32100
TCEQ PETROLEUM STORAGE TANK REGISTRATION; REGISTRATION; status ACTIVE
Environmental Program Id
CCR116
TCEQ COAL COMBUSTION RESIDUALS; REGISTRATION; status PENDING
Waste Registration
31911
TCEQ INDUSTRIAL AND HAZARDOUS WASTE; SOLID WASTE REGISTRATION # (SWR); status ACTIVE
Water Supply
2013
Water-right authorization allowing pumping from the Guadalupe River to maintain Coleto Creek Reservoir levels during drought
Watershed record states that Guadalupe River pumping was used during the 2011–2013 drought to maintain sufficient reservoir volume and discharge temperature. Specific permit number and authorized volume not disclosed in retrieved record.
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 / operatorOrganizationFinancier
Timeline and sources
Project milestones and public references behind the asset profile.
Project timeline
- Generator enters operationEIA-860
EIA-860 lists generator 1 with this operating date.