Member Companies

TCPA members own more than 55,000 megawatts of generation capacity and 82% of all natural gas generating capacity in the ERCOT/Texas market. That’s approximately half of all the installed generation capacity and 2/3 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
Nuclear (TX)
South Texas Project – Bay City: 1,136 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.

Hull Street Energy logo

Hull Street Energy

Based in Bethesda, Maryland, Hull Street Energy is a private equity firm specializing in deploying capital into the power sector as it decarbonizes. Hull Street is pleased to support this effort in North America, where our team’s unique knowledge of electricity infrastructure, fundamentals, and grid operations, has kept Hull Street at the forefront of the energy industry for nearly three decades. Areas of specialization for the firm include renewable and fossil power generation businesses, energy storage resources, transmission and distribution systems, electricity demand-side businesses, fuels, commodity risk management and contract structuring.

Natural Gas (TX)
Bastrop Energy Center – Bastrop: 618 MW
Paris Energy Center – Paris: 250 MW
LS Power logo

LS Power

Founded in 1990, LS Power is a development, investment and operating company focused on the power and energy infrastructure sector. In total, we have developed, constructed, managed and acquired more than 46,000 MW of competitive power generation and over 680 miles of transmission infrastructure, for which we have raised $50 billion in debt and equity financing to invest in North American infrastructure.

For decades, LS Power has been at the leading edge of the industry’s evolution, often introducing or commercializing new technologies and developing new markets. Today is no different. We don’t just talk about decarbonization, we make it happen.

Natural Gas (TX)
Jack County Power Plant – Bridgeport: 1,297 MW
Johnson County Power Plant – Cleburne: 282 MW
RW Miller Power Plant – Palo Pinto: 566 MW


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
Coal (TX)
Limestone – Jewett: 1,689 MW
WA Parish (Coal) – Thompsons: 2,504 MW
Wind (TX)
Sherbino – Pecos County: 75 MW
Rockland Capital logo

Rockland Capital

Rockland Capital is a private equity company that was formed in early 2003 in order to acquire and develop selected investment opportunities in power and energy infrastructure markets. Rockland professionals have deep and focused electric power industry experience, which enables the Company to take a hands-on, operational focus to managing assets. As a result of this experience and mindset, Rockland has focused its investment efforts on value-driven opportunities that often require additional management attention due to their structural complexity, past or current operational and/or financial distress, developmental nature, or because they have otherwise fallen out of favor in the current market cycle.

Portfolio investments have been located throughout the United States and the United Kingdom, have ranged in size from 1,875 MW to 5 MW and have been fueled by natural gas, coal, biomass, oil, energy storage, wind and solar power.

Natural Gas (TX)
Chamon Power – Harris County: 100MW
Ector – Goldsmith: 330 MW
PHR Peakers – Baclif: 390 MW
Port Comfort Power – Point Comfort: 100 MW
SJRR Power – Harris County: 100 MW
Victoria – Victoria: 290 MW
Victoria Port Power II – Victoria: 100 MW
Wharton County Generation – Boling: 84 MW

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

Shell Energy, an active participant in all different aspects of the ERCOT energy market for over 25 years, owns and/or has offtake agreements from over 3GW power in Texas. We are in the process of expanding our presence in the energy market further as part of our energy transition goals. As the leading off taker of power and hedge provider, Shell Energy enables generation construction by independent power producers. Shell Energy is the No#1 energy seller in ERCOT for more than a decade and the leading wholesale power supplier to independent energy retailers, cooperatives, municipalities, commercial and industrial (“C&I”) loads in Texas. Shell Energy Solutions is the 5th largest Residential retail electric provider in ERCOT and the 8th largest retailer in US. As a collateral and hedge provider, Shell Energy enables other smaller REPs to participate in ERCOT market by providing collateral through structured retail agreement with specified risk management requirement. Shell Energy is a leading provider of real-time desk and ISO interface services to power generators and retailers across the United States. Shell has 97 different business and 11k employees in Texas and hence is an active end user consumer in ERCOT. Shell Energy and its subsidiaries also 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, electric cooperatives, and large commercial and industrial users.


With offices and power plants across the United States and Canada, Tenaska affiliates provide the following services: independent power plant development, ownership and operations; natural gas and electric power marketing; energy risk management; asset acquisition and electric transmission systems management and development. The company has: $3.7 billion in total assets; completed over 10,000 MW in power plant development; ~58,000 MW in energy management service contracts; 6,804 MW in managed plant capacity; and sells or manages ~9.5 BCF/day of natural gas throughout the United States. Power marketing affiliate Tenaska Power Services Co. is headquartered in Arlington, Texas and Tenaska’s Strategic Development & Acquisitions Group and natural gas marketing affiliate, Tenaska Marketing Ventures, have regional offices in Arlington. Tenaska has developed 17 power plants, including its very first in Paris, Texas. A plant in Oklahoma also is also capable of serving Texas’ ERCOT market.

Natural Gas (TX)
Tenaska Frontier Generating Station – Grimes County: 830 MW
Tenaska Gateway Generating Station – Rusk County: 845 MW
Kiowa Power Partners – Pittsburg County (OK) serves ERCOT market: 1,220 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 has successfully raised $2 billion for projects in ERCOT totaling 2,400MW of new natural gas peak generating assets either operating or in construction.

Natural Gas (TX)
HO Clarke – Harris County: 288MW
HO Clarke II – Harris County: 96MW
Topaz – Galveston County: 336MW
Topaz II – Galveston County: 144MW
Braes Bayou – Fort Bend County: 288MW
Braes Bayou II – Fort Bend County: 96MW
Mark One II – Brazoria County: 288MW
Brotman – Brazoria County: 288MW
Brotman II – Brazoria County: 96MW
Remy Jade – Harris County: 288MW, expected COD Q2 2024
Remy Jade II – Harris County: 96MW, expected COD Q2 2024
Mark One II – Brazoria County: 96MW, expected COD Q2 2024