Eversource Energy, a public utility holding company, engages in the energy delivery business. The company operates through Electric Distribution, Electric Transmission, Natural Gas Distribution, and Water Distribution segments. It is involved in the transmission and distribution of electricity; solar power facilities; and distribution of natural gas. The company operates regulated water utilities that provide water services to approximately 241,000 customers. It serves residential, commercial, industrial, municipal and fire protection, and other customers in Connecticut, Massachusetts, and New Hampshire. The company was formerly known as Northeast Utilities and changed its name to Eversource Energy in April 2015. Eversource Energy was incorporated in 1927 and is headquartered in Springfield, Massachusetts.

First Solar, Inc., a solar technology company, provides photovoltaic (PV) solar energy solutions in the United States, France, Japan, Chile, and internationally. The company manufactures and sells PV solar modules with a thin film semiconductor technology that provides a lower-carbon alternative to conventional crystalline silicon PV solar modules. It designs, manufactures, and sells cadmium telluride solar modules that converts sunlight into electricity. The company's residual business operations include project development activities, operations and maintenance services, and the sale of PV solar power systems to third-party customers. It serves developers and operators of systems, utilities, independent power producers, commercial and industrial companies, and other system owners. The company was formerly known as First Solar Holdings, Inc. and changed its name to First Solar, Inc. in 2006. First Solar, Inc. was founded in 1999 and is headquartered in Tempe, Arizona.

IES Holdings, Inc. engages in the design and installation of integrated electrical and technology systems, and provides infrastructure products and services in the United States. The Communications segment designs, installs, and maintains network infrastructure within data centers for co-location and managed hosting customers; corporate, educational, financial, hospitality, and healthcare buildings; e-commerce distribution centers; and high-tech manufacturing facilities. This segment also provides design and installation services for audio/visual, telephone, fire, and wireless access and intrusion alarm systems; and engages in designing/building, servicing, and maintaining data network systems. The Residential segment offers electrical installations to single-family housing and multi-family apartments; and cable television installations to residential and light commercial applications, as well as installs residential solar power for new construction and existing residences. The Infrastructure Solutions segment maintains and repairs alternating and direct current electric motors and generators, and power generating and distribution equipment; manufactures custom-engineered metal enclosed bus duct solutions used in power distribution; manufactures custom commercial and industrial generator enclosures; manufactures, re-manufactures, and repairs industrial lifting magnets; and maintains and repairs railroad main and auxiliary generators, main alternators, and traction motors. The Commercial & Industrial segment offers electrical and mechanical design, construction, and maintenance services for office buildings, manufacturing facilities, data centers, chemical plants, refineries, wind farms, solar facilities, municipal infrastructures, and health care facilities. The company was formerly known as Integrated Electrical Services, Inc. and changed its name to IES Holdings, Inc. in May 2016. IES Holdings, Inc. was incorporated in 1997 and is headquartered in Houston, Texas.

Emeren Group Ltd, together with its subsidiaries, develops, builds, and sells solar power projects. It owns and operates 3-gigawatt pipeline of projects and independent power producer assets, as well as a 10-gigawatt pipeline of storage pipeline. The company develops community solar gardens; and sells project rights. In addition, it engages in engineering design; procurement of solar modules; balance-of-system components and other components; and construction contracting and management services. Further, the company generates and sells electricity. It operates in China, the United States, the United Kingdom, Germany, France, Poland, Italy, and Hungary. The company was formerly known as ReneSola Ltd and changed its name to Emeren Group Ltd in January 2023. Emeren Group Ltd was founded in 2005 and is headquartered in Norwalk, Connecticut.

SolarBank Corporation operates as an independent renewable and clean energy project developer, power producer, and asset operator in Canada and the United States. It focuses on solar photovoltaic power generation projects, battery energy storage systems, and EV-charging projects. The company provides expertise in the areas of site origination, utility grid interconnection, permitting, financing, engineering, procurement and construction, operation and maintenance, and asset management of solar photovoltaic power plants to the renewable and clean energy industry. It also develops solar projects that sells electricity to commercial, industrial, municipal, residential, and utility off-takers sectors. The company was formerly known as Abundant Solar Energy Inc. and changed its name to SolarBank Corporation in October 2022. SolarBank Corporation was incorporated in 2013 and is headquartered in Toronto, Canada.

Sunnova Energy International Inc. engages in the provision of energy as a service in the United States. The company offers electricity, as well as offers operations and maintenance, monitoring, repairs and replacements, equipment upgrades, on-site power optimization, and solar energy system and energy storage system diagnostics services. As of December 31, 2023, it operated a fleet of residential solar energy systems with a generation capacity of approximately 2,292 megawatts serving over 419,000 customers. The company was incorporated in 2012 and is headquartered in Houston, Texas.

Sunrise New Energy Co., Ltd. engages in the manufacture and sale of graphite anode material for EVs and other lithium-ion batteries. The company also operates a peer-to-peer knowledge sharing and enterprise service platform business. In addition, it offers education consulting, training, tailored, information technology, business incubation, enterprise information technology integration, health, and agricultural technology services, as well as cultural and artistic exchanges and planning, and conference services. The company was formerly known as Global Internet of People, Inc. Sunrise New Energy Co., Ltd. was founded in 2014 and is headquartered in Zibo, the People's Republic of China.

SunPower Corporation, a solar technology and energy services provider, offers solar, storage, and home energy solutions primarily in the United States and Canada. Its solutions include the Equinox and SunVault systems which are pre-engineered modular solutions for residential applications that combine solar module technology with integrated plug-and-play power stations, cable management systems, and mounting hardware that enable dealers and installers to complete system installations, as well as for end customers to manage their energy production. The company also provides post-installation monitoring and maintenance services. It serves residential customers, including individual homeowners and new home builders. The company was incorporated in 1985 and is headquartered in Richmond, California. SunPower Corporation operates as a subsidiary of TotalEnergies SE.