Emerald Energy plc is an energy exploration subsidiary of Chinese state-owned company Sinochem with headquarters in London but is registered offshore in the Isle of Man. The company specialises in oil exploration and production of hydrocarbons.

Solid Energy was the largest coal mining company in New Zealand and is a state owned enterprise of the New Zealand Government. The company was formed from the former government department State Coal Mines.

Enel North America is an American company headquartered in Andover, MA, United States. One of the renewable energy operators in North America, it was formed as a subsidiary of the global utility Enel S.p.A. in 2000.

Great British Energy (GB Energy, GBE) is a publicly owned energy investment company in the United Kingdom. It was established by the Great British Energy Act 2025, which received royal assent on 15 May 2025, and is sponsored by the Department for Energy Security and Net Zero.

Altenergy Power System better known as APsystems (formerly APS) is a global technology company that operates in the renewable energy space. APsystems is a provider of multi-platform module-level power electronics (MLPE) solutions for the solar photovoltaic (PV) industry.

Yukon Energy Corporation (YEC; French: Société d'énergie du Yukon) is a Crown corporation that is the primary producer of electricity in the Canadian territory of Yukon. It also distributes electricity to a small number of locations not served by the privately owned ATCO Electric Yukon.

Wind power is the fastest-growing renewable energy technology in Scotland, with 17.7 gigawatts (GW) of installed wind power capacity by Q2 2025. This included 10.4 GW from onshore wind in Scotland and 4.3 GW of offshore wind generators.

TotalEnergies Gas & Power is a business energy provider in the UK. A wholly owned subsidiary of French Oil Supermajor TotalEnergies.

Engie Energy International, formerly International Power, is a multinational electricity generation company headquartered in Newcastle upon Tyne, and a wholly owned subsidiary of the French company Engie (formerly GDF Suez). The company was formed as International Power in 2000 by the demerger of National Power.

Robert Dell (English: ; 1950–) is an American geothermal engineer, sustainable installation artist, renewable energy expert, and was a mechanical engineering professor at The Cooper Union. He is first inventor on eleven registered patents and is a Fellow of the American Society of Mechanical Engineers.