Blackstone Group

Tallgrass Energy is a company based in Lakewood, Colorado, focused on owning, operating, acquiring, and developing midstream energy assets across North America. The organization provides essential services in oil and gas transportation and processing, specifically through its pipeline and natural gas processing assets. Tallgrass Energy facilitates natural gas transportation and storage for clients primarily in the Rocky Mountain and Midwest regions of the United States. Additionally, it manages permanent water infrastructure, offering sustainable solutions for the transportation of crude oil and other minerals, as well as services related to the sourcing, storage, recycling, and disposal of water.

Energy Exemplar is a software development company based in North Adelaide, Australia, specializing in simulation and modeling solutions for energy markets. The company is known for its PLEXOS suite, which provides integrated simulation software for electric power, water, gas, and renewable energy sectors. Energy Exemplar's software employs advanced computer technology and mathematical algorithms to deliver realistic simulations of real-world energy markets. Its clientele includes independent system operators, regulators, electric generation and transmission companies, as well as gas producers and retailers, enabling them to model their systems comprehensively and make informed decisions regarding energy management and planning. With a strong international presence, Energy Exemplar generates over 90% of its revenue from markets outside Australia.

American Electric Power Company, Inc. is a major electric public utility holding company based in Columbus, Ohio, that engages in the generation, transmission, and distribution of electricity across 11 states, serving over 5 million customers. The company operates through various segments, including Vertically Integrated Utilities and Transmission and Distribution Utilities. American Electric Power generates electricity from a diverse mix of sources, including coal, natural gas, nuclear, and renewable energy such as wind and solar. It also supplies wholesale electricity to other utilities, rural cooperatives, and municipalities. In addition to its core electric services, the company maintains a substantial infrastructure, including railcars and barges for coal transport, and actively invests in renewable energy initiatives to enhance its energy portfolio and minimize environmental impact. Founded in 1906, American Electric Power emphasizes reliability and sustainability in its operations and community engagement.

Invenergy LLC is a privately-held company that develops, owns, and operates sustainable power generation and energy storage facilities across North America, Europe, and Asia. Founded in 2001 and headquartered in Chicago, Illinois, Invenergy has developed nearly 150 projects, including wind, solar, and natural gas power generation, along with advanced energy storage solutions. The company provides comprehensive services in the development and operation of these facilities and also offers operations and maintenance services. By partnering with a variety of utilities, financial institutions, and commercial and industrial businesses, Invenergy aims to deliver scalable power generation and storage solutions that contribute to a cleaner energy future.

Invenergy LLC is a privately-held company that develops, owns, and operates sustainable power generation and energy storage facilities across North America, Europe, and Asia. Founded in 2001 and headquartered in Chicago, Illinois, Invenergy has developed nearly 150 projects, including wind, solar, and natural gas power generation, along with advanced energy storage solutions. The company provides comprehensive services in the development and operation of these facilities and also offers operations and maintenance services. By partnering with a variety of utilities, financial institutions, and commercial and industrial businesses, Invenergy aims to deliver scalable power generation and storage solutions that contribute to a cleaner energy future.

Tallgrass Energy is a company based in Lakewood, Colorado, focused on owning, operating, acquiring, and developing midstream energy assets across North America. The organization provides essential services in oil and gas transportation and processing, specifically through its pipeline and natural gas processing assets. Tallgrass Energy facilitates natural gas transportation and storage for clients primarily in the Rocky Mountain and Midwest regions of the United States. Additionally, it manages permanent water infrastructure, offering sustainable solutions for the transportation of crude oil and other minerals, as well as services related to the sourcing, storage, recycling, and disposal of water.

Texas Genco is a prominent wholesale electric power generating company in the United States, with a generating capacity exceeding 14,000 megawatts. It operates 11 power generating facilities that encompass 60 generating units and features a diverse energy portfolio utilizing natural gas, oil, coal, lignite, and uranium. Additionally, Texas Genco holds a 30.8% stake in the South Texas Project Electric Generating Station, which includes two nuclear units, each with a capacity of 1,250 megawatts. The company primarily sells electric generation capacity, energy, and ancillary services within the Electric Reliability Council of Texas (ERCOT) market, the largest power market in Texas.