Thames Water Funding, Investors & Competitors

NextEra Energy's regulated utility, Florida Power & Light, is the largest rate-regulated utility in Florida. The utility distributes power to over 6 million customer accounts in Florida and owns 36 gigawatts of generation. FP&L contributes roughly 70% of NextEra's consolidated operating earnings. NextEra Energy Resources, the renewable energy segment, generates and sells power throughout the United States and Canada with nearly 40 GW of generation capacity, including natural gas, nuclear, wind, and solar.

Iberdrola is one of the largest utilities in the world with electric utility operations in nearly 40 countries. The company has a 57-gigawatt portfolio of hydro, wind, natural gas, and nuclear power plants. It is one of the largest owners of wind farms in the world, representing about 40% of its portfolio. Although the company has recently developed or acquired distribution and power generation assets in other geographic areas, Spain is still home to more than half of its power generation capacity. Iberdrola also owns and operates electricity and distribution networks in Spain, the UK, Brazil, and the US.

Enel is a diversified energy company domiciled in Italy. Operations are concentrated in Italy, Spain, and Latin America. The firm's primary activities are electric generation, electric networks, and gas and electricity marketing. Around 35% of the company's EBITDA is derived from its regulated networks, the rest is from generation and supply. Enel is a giant in global power generation with 81 gigawatts of capacity, of which 56 GW is renewables, including a large share of hydro.

Southern is one of the largest utilities in the US. The company serves 9 million customers with vertically integrated electric utilities in three states and natural gas distribution utilities in four states. It owns 44 gigawatts of rate-regulated generating capacity, primarily for serving customers in Georgia, Alabama, and Mississippi. Subsidiary Southern Power owns 13 gigawatts of natural gas generation and renewable energy across the US and sells the electricity primarily under long-term contracts.

Constellation Energy Corp producer of carbon-free energy and a supplier of energy products and services. The company offers generating capacity that includes nuclear, wind, solar, natural gas, and hydroelectric assets. It sells electricity, natural gas, and other energy-related products and sustainable solutions to various types of customers, including distribution utilities, municipalities, cooperatives, and commercial, industrial, public sector, and residential customers in markets across multiple geographic regions. Its operating segments and reporting units are Mid-Atlantic, Midwest, New York, ERCOT, and Other Power Regions.

Duke Energy is one of the largest US utilities, with regulated utilities in the Carolinas, Indiana, Florida, Ohio, and Kentucky that deliver electricity to more than 8 million customers. Its natural gas utilities serve more than 1.6 million customers.

National Grid owns and operates the electric transmission system in England and Wales. It sold the bulk of its UK gas transmission business in fiscal 2023 to fund the acquisition of PPL's UK power distribution assets. In the Northeastern United States, it serves electricity and gas customers combined in three states. It also owns regulated transmission and electricity generation in the United States, metering services, merchant transmission lines in the UK, and the Grain (UK) liquefied natural gas facility.

Engie is a global energy firm formed by the 2008 merger of Gaz de France and Suez and the acquisition of International Power in 2012. It changed its name to Engie from GDF Suez in 2015. The company operates Europe's largest gas pipeline network in France and a global fleet of conventional and renewable power plants with 67 GW of capacity on a consolidated basis. Engie also operates a diverse suite of other energy businesses.

American Electric Power is one of the largest regulated utilities in the United States, providing electricity generation, transmission, and distribution to more than 5 million customers in 11 states. About 39% of AEP's capacity is coal, with the remainder from a mix of natural gas (28%), renewable energy and hydro (23%), nuclear (7%), and demand response (3%). Vertically integrated utilities, transmission and distribution, and generation and marketing support earnings.

Based in Richmond, Virginia, Dominion Energy is an integrated energy company with over 30 gigawatts of electric generation capacity and more than 90,000 miles of electric transmission and distribution lines. Dominion is constructing a rate-regulated 5.2 GW wind farm off the Virginia Beach coast.

Since the deal with E.On, RWE is refocused on power generation, mostly in Europe. It owns 38 gigawatts of power generation capacity: 17% from lignite and hard coal plants, 36% from gas plants, 40% from renewables including pumped storage and batteries. Besides Germany, RWE’s power plants are chiefly located in the United Kingdom, the Netherlands, Turkey, and the United States for many onshore wind farms.

Sempra Energy serves one of the largest utility customer bases in the United States. It distributes natural gas and electricity in Southern California and owns 80% of Oncor, a transmission and distribution business in Texas. Sempra Infrastructure partners, of which Sempra will hold a 25% ownership, owns and operates liquefied natural gas facilities in North America and infrastructure in Mexico.

Since completing the transformative deal with RWE in 2019, E.On has two core businesses: energy networks and customer solutions. Its retail supply serves around 47 million customers primarily in Germany, the United Kingdom, Eastern Europe, the Netherlands, Belgium, and Sweden. Its networks business operates in Germany, Sweden, Eastern Europe, and Turkey.

Endesa generates, distributes, and supplies electricity in Spain and Portugal. The company has 21.5 gigawatts of installed generation capacity split among hydroelectric, nuclear, natural gas, oil, solar, and wind. Endesa also supplies gas to retail and business customers in Spain and France.

GNDB is a Barcelona-headquartered natural gas distributor operating Spain's extensive pipeline network. The company manages 53,000 kilometers of mains supplying 5.3 million connection points across 1,100 municipalities. GNDB handles metering, maintenance, and expansion for residential, commercial, and industrial customers primarily in Catalonia and eastern Spain. As a Naturgy subsidiary, it integrates with national transmission systems for reliable delivery. Established in 1992, GNDB invests in smart grid upgrades and biogas blending initiatives.

Northern Indiana Public Service Company is a Merrillville-headquartered utility and the largest natural gas distributor and second-largest electric distributor in Indiana. It serves the northern third of the state as part of NiSource Inc., maintaining distribution networks across 32 counties for residential and commercial customers.

Octopus Energy is a British energy supplier and technology group founded in 2015 that retails electricity and gas, invests in and manages renewable generation, and licenses software to other utilities. It has more than eight million retail customers worldwide, almost seven million of them in the United Kingdom, and became the largest UK electricity supplier after acquiring Shell Energy's retail arm in December 2023. Its Kraken platform, contracted to more than 50 million customer accounts, is licensed to third-party utilities, and its asset management arm runs over 400 wind and solar generators.

SSEN Transmission is an Inverness-headquartered operator of the high-voltage electricity transmission network serving 4.5 million customers in northern Scotland and the north of England. The company maintains 16,000 circuit kilometers of overhead lines and substations rated up to 400 kV. SSEN Transmission invests £2 billion through 2026 in grid reinforcements to integrate offshore wind connections.