National Grid Plc is an international electricity and gas company. The Company's segments include UK Transmission, UK Gas Distribution, US Regulated and Other activities. The Company owns the electricity transmission system in England and Wales and is the national electricity transmission system operator, responsible for both the England and Wales transmission system, and the two high voltage transmission networks in Scotland, which the Company does not own. The Company owns and operates electricity distribution networks in upstate New York, Massachusetts, Rhode Island and New Hampshire. Through these networks the Company serves approximately 3.5 million electricity consumers in New England and upstate New York. On July 3, 2012, the Company sold its New Hampshire electric and gas distribution businesses (Granite State Electric Company and Energy North Natural Gas Inc.) to Liberty Energy Utilities (New Hampshire) Corp., a subsidiary of Algonquin Power & Utilities Corp.