National Grid plc is a British multinational electricity and gas utility company headquartered in London, England. It owns and operates high-voltage electricity transmission networks in England and Wales, ensuring safe and efficient power delivery from generation sources to demand centers. Through its National Grid Electricity Distribution subsidiary, formerly Western Power Distribution, it manages the UK's largest electricity distribution network, serving nearly 8 million customers in the Midlands, southwest England, and south Wales. In the Northeastern United States, particularly New York and Massachusetts, National Grid plc delivers electricity and natural gas to over 20 million customers, operating extensive transmission and distribution infrastructure while investing heavily in cleaner technologies like offshore wind and battery storage. The company has divested non-core assets, including its UK gas transmission business to National Gas and interests in gas distribution, to focus on electricity networks and support the energy transition toward net zero emissions by 2050. National Grid Ventures and Partners drive international innovation in interconnectors, LNG facilities, and venture investments, playing a pivotal role in modernizing energy systems for reliability, security, and decarbonization across transatlantic markets.