Description A sound investment, Puget Energy is one of Washington State's largest utilities. Its electricity supply and transmission business, Puget Sound Energy, provides electricity to almost 1.1 million customers and natural gas to more than 753,640 customers in 11 counties in western Washington. The utility owns fossil-fueled and hydroelectric plants as well as wind farms with a cumulative total of about 5,320 MW of capacity. In 2010, Puget Holdings LLC, a consortium led by Australian bank unit Macquarie Infrastructure Partners, acquired Puget Energy for $7.4 billion. The deal strengthens Puget Energy's access to cash to pay down debt and for future growth.