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Puget Sound Energy Logo
|Founded||Seattle, Washington, U.S. (1997)|
|Headquarters||Bellevue, Washington, U.S.|
|Kimberly J. Harris, President and CEO|
|Products||Electricity and natural gas|
|Revenue||$3.23 billion. (2009 Energy Sales)|
Number of employees
Puget Sound Energy (PSE) is a Washington state energy utility providing electrical power and natural gas primarily in the Puget Sound region of the northwest United States. The utility serves electricity to more than 1.1 million customers in Island, King, Kitsap, Kittitas, Pierce, Skagit, Thurston, and Whatcom counties; and provides natural gas to 750,000 customers in King, Kittitas, Lewis, Pierce, Snohomish and Thurston counties. The company has a 6,000-square-mile (16,000 km2) electric and natural gas service area.
PSE’s electric supplies include utility-owned resources as well as those under long-term contract, for a total capacity of 5,044 megawatts (MW). While PSE-owned generating capacity is at 3,597 MW. 
PSE owns coal, hydroelectric, natural gas and wind power-generating facilities, with more than 2,900 MW of capacity. Roughly one-third each of PSE generation comes from coal, hydroelectric, and natural gas facilities, with a small remainder coming from wind and energy efficiency programs.
Coal accounts for 36% of PSE’s electricity fuel mix. PSE's partial ownership of Eastern Montana's Colstrip Generating Station represents the single largest power-generating facility PSE owns, approximately 700 MW of generating capacity. In 2010, the Colstrip Generating station was the 8th largest greenhouse gas emitter among power plants in the United States.
Hydroelectricity generates 33% of PSE’s power supply. The company operates three hydroelectric facilities:
Natural gas-fired power generation accounts for 29% of the utility’s electricity fuel mix. The company operates these natural gas-fired facilities:
A net-metering program allows residential and business customers to return extra renewable energy solar power to the grid. An additional approximately 1% per year of generation comes from—or actually is reduced by—state mandated I-937 energy efficiency programs, adding an average 25 additional "Negawatts" generation capacity per year.
For its natural gas service to customers, PSE purchases a portfolio of natural gas supplies originating in western Canada and the U.S. Rocky Mountain states.
PSE was formed in 1997 when two of its largest ancestral companies – Puget Sound Power & Light Company and Washington Energy Company – merged.
In 2009 Puget Sound Energy was sold to foreign investors, Macquarie Group, in a leveraged private equity buyout. Puget Holdings, the U.S. title of this group of long-term infrastructure investors, merged with Puget Energy, PSE’s parent company to form the current business structure. Puget Energy is a holding company incorporated in the State of Washington. All of its operations are conducted through its utility subsidiary, PSE, which is regulated by Washington Utilities and Transportation Commission.
Puget Sound Energy rates show a typical residential electrical bill (at 1000 kwh per month) of $102.56 and typical a gas bill (at 68 therms per month) of $86. PSE reports 2010 household emissions (per household at 1000 kwh per month) of 1500 pounds CO2.
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