A sound investment, Puget Energy is the holding company for one of Washington State's largest utilities, Puget Sound Energy. The utility provides electricity to nearly 1.1 million customers and natural gas to some 790,000 customers in about 10 counties in western Washington. Puget Sound Energy owns fossil-fueled and hydroelectric plants as well as wind farms with a cumulative total of 4,887 power transmission lines and 20,430 miles of distribution lines. Puget Sound Energy also has about 12,190 miles of gas mains, and about 13,655 miles of gas service lines.