Member Companies

TCPA members provide over 52,000 megawatts of installed capacity to the ERCOT/Texas market. That’s nearly 90 percent of the non-wind capacity in ERCOT. They represent billions of dollars of investment in the state, and they employ thousands of Texans.


Calpine Corporation is America’s largest generator of electricity from natural gas and geothermal resources with robust commercial, industrial and residential retail operations in key competitive power markets. Founded in 1984, we use advanced technologies to generate power in an efficient, cost-effective and environmentally responsible manner. Calpine is headquartered in Houston Texas.  

Natural Gas (TX)

Baytown Energy Center – Baytown: 896 MW
Bosque Energy Center – Laguna Park: 762 MW
Channel Energy Center – Houston: 808 MW
Corpus Christi Energy Center – Corpus Christi: 500 MW
Deer Park Energy Center – Deer Park: 1,204 MW
Freestone Energy Center – Freestone County: 779 MW
Guadalupe Energy Center – Marion: 1,009 MW
Hidalgo Energy Center – Edinburg: 477 MW
Jack A. Fusco Energy Center – Richmond: 609 MW
Magic Valley Generating Station – Edinburg: 712 MW
Pasadena Power Plant – Pasadena: 781 MW
Texas City Power Plant – Texas City: 453 MW

Wind (TX)
400 MW currently under development
Cogentrix logo over plant operated by wattridge


Cogentrix Energy and its subsidiaries operate and sell energy and capacity from power generation facilities owned by Carlyle Power Partners. On behalf of Carlyle, since 2012 Cogentrix Energy has managed 46 power generation facilities, totaling approximately 12 Gigawatts, and spread across five different power markets.

Cogentrix Energy’s long legacy of successful power generation operations has created a leading platform for the successful and efficient deployment of investor capital in the electricity generation sector.

Natural Gas (TX)
Altura Cogen – Channelview, Harris: 600 MW
Cedar Bayou 4 – Baytown, Harris: 550 MW (50% stake)
Constellation logo


Constellation is the nation’s largest producer of carbon-free energy and the leading competitive retail supplier of power and energy products and services for homes and businesses across the United States. Headquartered in Baltimore, its generation fleet powers more than 20 million homes and businesses and is helping to accelerate the nation’s transition to clean energy with more than 32,400 megawatts of capacity and annual output that is 90 percent carbon-free. Constellation has set a goal to eliminate 100 percent of its greenhouse gas emissions by 2040 by leveraging innovative technology and enhancing its diverse mix of hydro, wind and solar resources paired with the nation’s largest carbon-free nuclear fleet. Constellation’s family of retail businesses serves approximately 2 million residential, public sector and business customers, including three-fourths of the Fortune 100.

Natural Gas (TX)
Colorado Bend II – Wharton County: 1,088 MW
Handley Generating Station – Tarrant County: 1,265 MW
Wolf Hollow II – Hood County: 1,069 MW
Wind (TX)
Sendero – Jim Hogg & Zapata Counties: 78 MW
Whitetail – Webb County: 91.2 MW
EDF Energy member profile for TCPA

EDF Energy North America

EDF Energy North America (EDF Energy NA) offers a full range of structured solutions — energy supply, transportation, risk management products and technology — to help customers optimize their energy assets and successfully compete in the marketplace.

As one of the top providers of generation services to third-party power stations in North America we provide energy management solutions, natural gas supply and real-time desk services to power generators across the United States. Retail energy aggregators, with footprints across the deregulated markets, trust us to provide wholesale market supply and ISO interface services. Our Retail Supply and Services arm offers a complete suite of services to commercial and industrial customers including power and natural gas supply, renewable products and energy portfolio optimization structures in deregulated markets across North America. Our marketing and trading platform provides comprehensive coverage of financial and physical products in power, natural gas, environmental products, NGLs, congestion management, derivatives, and financial crude oil products.

We are part of the EDF Group, a global leader in low-carbon energies, with a diversified generation mix based on nuclear power, hydropower, new renewable energies and thermal energy. The EDF Group is involved in supplying energy and services to approximately 39 million customers in France and across the world.


Vistra Corp. owns Luminant, a competitive power generation business, including mining, wholesale marketing and trading, and development operations. Luminant has more than 18,300 megawatts of generation in Texas, powered by a diverse portfolio of natural gas, nuclear, coal, solar, and battery storage facilities. In addition, TXU Energy is a retail electric provider that is also a subsidiary of Vistra Corp.. Luminant is headquartered in Irving, Texas.

Natural Gas (TX)

Ennis Energy Facility – Ennis: 366 MW
Forney Power Plant – Forney: 1,912 MW
Midlothian Energy Facility – Midlothian: 1,596 MW
Hays Energy Facility – San Marcos: 1,047 MW
Lamar Power Plant – Paris: 1,076 MW
Odessa-Ector Power Plant – Odessa: 1,054 MW
Graham Power Plant – Graham: 630 MW
Lake Hubbard Power Plant – Dallas: 921 MW
DeCordova Power Plant – Granbury: 260 MW
Morgan Creek Power Plant – Colorado City: 390 MW
Permian Basin Power Plant – Monahans: 325 MW
Stryker Creek Power Plant – Rusk: 685 MW
Trinidad Power Plant – Trinidad: 244 MW
Wise Energy Facility – Poolville: 787 MW

Nuclear (TX)
Comanche Peak Nuclear Power Plant – Glen Rose: 2,300 MW
Coal (TX)
Martin Lake Power Plant – Tatum: 2,250 MW
Oak Grove Power Plant – Franklin: 1,600 MW
Coleto Creek Power Station – Goliad: 650 MW
Solar / Battery Storage (TX)
Upton 2 Solar Plant – Upton County: 180 MW (includes 10 MW / 42 MWh lithium-ion battery storage system)


NRG owns generation as well as several retail electric providers (REPs) and operates in Texas as well as around the world. Its affiliates provide demand response services as well as energy efficiency and other load control management tools. NRG’s generation portfolio includes natural gas, coal, nuclear, and renewable resources. Generation facilities are located in the northeast, Texas, Louisiana, Nevada, California, and Illinois as well as in Turkey, Guam, and Australia. NRG is headquartered in Houston, Texas as well as Princeton, New Jersey.

Natural Gas (TX)
Cottonwood – Deweyville: 1,263 MW
Cedar Bayou – Eldon: 1,495 MW
Cedar Bayou 4 – Eldon: 249 MW
Greens Bayou – Houston: 344 MW
Gregory – Gregory: 388 MW
Petra Nova – Thompsons: 22 MW
San Jacinto – La Porte: 162 MW
TH Wharton – Houston: 1,025 MW
WA Parish (Natural Gas) – Thompsons: 1,145 MW
Nuclear (TX)
South Texas Project – Bay City: 1,136 MW
Coal (TX)
Limestone – Jewett: 1,689 MW
WA Parish (Coal) – Thompsons: 2,504 MW
Wind (TX)
Sherbino – Pecos County: 75 MW

Shell Energy North America (US), L.P.

Shell Energy, an indirect subsidiary of Royal Dutch Shell, is an energy marketer and trader. With regional offices throughout the US and Canada, Shell Energy and its subsidiaries trade and market natural gas, power, environmental and risk management products in North and South America. It has affiliates that market and trade the same commodities in other parts of the world. Shell Energy’s customers include local gas distribution companies, electric utilities, independent power producers, energy retailers, oil and gas producers, municipalities, rural electric cooperatives, and large commercial and industrial users. Its commercial activities in the electric markets include full requirements service to electric utilities, natural gas and electric supply for competitive retail suppliers and a variety of services and products for electric generators, such as natural gas supply, energy and asset management transactions, tolling arrangements with terms as long as 20 years and power purchase arrangements to support merchant renewable facility development, such as wind, solar farms and battery storage. Shell acquired MP2, a demand response and retail electric provider, and maintained its headquarters in The Woodlands, Texas.

Talen Energy

Talen Energy is one of the largest privately-owned independent power generation infrastructure companies in North America. It generates and sells electricity, capacity and related products from a fleet of power plants that use diverse fuel sources including zero-carbon nuclear, clean and flexibly dispatched natural gas, and efficient, resilient coal with various facilities possessing fuel switching capabilities. Talen has power generation assets, coupled with retail operations and commercial capabilities, that empower it to grow its platform and create value across multiple markets and customers.

Natural Gas (TX)
Barney Davis Power Plant – Corpus Christi: 933 MW
Laredo Power Plant – Laredo: 177 MW
Nueces Bay 7 Power Plant – Corpus Christi: 633 MW
texgen logo


TexGen is a privately-held company that owns over 2,200 MW of natural-gas fired generation in Texas. With power plants located near major metropolitan areas in Texas (Houston and Dallas-Ft. Worth), the company exclusively serves wholesale power customers in Texas. TexGen has a small, but versatile team that leverages significant industry experiences and key third-party service contracts to optimize and manage its assets in the ERCOT market. The company’s headquarters is in Houston, TX.

Natural Gas (TX)
Wolf Hollow I – Granbury: 750 MW
Mountain Creek – Dallas: 800 MW
La Porte Power – La Porte: 150 MW
Colorado Bend I – Wharton County: 530 MW
wattbridge logo over natural gas power plant operated by wattridge


WattBridge is wholly owned subsidiary of PROENERGY Services, LLC that was formed to develop, own, and operate fast-start, natural gas fired, power generation assets. Leveraging the parent companies’ deep domain expertise in LM6000 aeroderivative technology, plant construction and O&M, WattBridge currently operates 672 MW in ERCOT, with financing plans in place to expand to 1,440 MW by 2022 with a commitment to support the transition from high-carbon producing power assets to cleaner, greener sustainable energy resources.

Natural Gas (TX)
HO Clarke – Harris: 288 MW
HO Clarke II – Harris: 96 MW
Topaz – Galveston: 336 MW
Topaz II – Galveston: 148 MW
Braes Bayou – Fort Bend: 288 MW
Braes Bayou II – Fort Bend: 96 MW
Mark One – Brazoria: 288 MW