Severn Trent Plc engages in the provision of clean water and waste water treatment services and develops renewable energy solutions. The firm provides water and waste water services. The firm operates through two divisions: Regulated Water and Waste Water, and Severn Trent Business Services. Regulated Water and Waste Water division includes the wholesale water and waste water activities of the Company’s regulated businesses, STWL and Hafren Dyfrdwy and its retail services to domestic customers. Severn Trent Business Services division is focused on Green Power, Operating Services and Property Development in the United Kingdom. STWL provide water and waste services to more than 4.5 million homes and businesses in the Midlands, from the outskirts of Bristol to the southern suburbs of Sheffield. Hafren Dyfrdwy serves 87,000 water and 22,000 waste customers in Powys, Wrexham, and parts of Flintshire, Denbighshire and Montgomeryshire.