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Pennon Group PLC is a British water utility and environmental infrastructure company headquartered in Exeter, England. Founded in 1989, the company operates primarily in the water and wastewater management sectors, providing services across the South West of England through its subsidiary, South West Water. Pennon Group is listed on the London Stock Exchange under the ticker symbol PNN and is a constituent of the FTSE 250 Index, focusing on sustainable water and waste management solutions.

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 46 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.