Puget Sound Energy (PSE) is an energy utility company based in the
U.S. state of
Washington that provides
electrical power and
natural gas to the
Puget Sound region. 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's electric and natural gas service area spans .
Facilities
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 3,500 MW of capacity. In 2018, PSE's generation was 36% coal, 32% hydroelectric, 20% natural gas, and 10% wind derived. Less than one percent originated from other energy efficiency programs.
Coal accounted for 36% of PSE's electricity fuel mix in 2018.
PSE's partial ownership of Eastern Montana's
Colstrip
Colstrip is a city in Rosebud County, Montana, Rosebud County, Montana, United States. The population was 2,096 at the 2020 United States Census, 2020 census. Established in 1924 and incorporated as a city in 1998, Colstrip is the largest city in ...
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 generated 31% of PSE's power supply in 2016. The company operates three hydroelectric facilities:
* The Baker River Hydroelectric Project on the
Baker River, generating 170 MW of electricity.
*
Snoqualmie Falls Hydroelectric Plant, two power plants on the
Snoqualmie River in King County, generating 44 MW.
* The
Electron Hydroelectric Project on the
Puyallup River in Pierce County generates 22 MW of electricity.
Natural gas-fired power generation accounted for 22% of the utility's electricity fuel mix in 2016.
The company operates these natural gas-fired facilities:
* The Sumas Generating Station in Whatcom County is a cogeneration natural gas-fired plant capable of generating 125 MW of electricity.
* The Ferndale Generating Station in Whatcom County is a combined-cycle natural gas-fired plant capable of generating 270 MW of electricity.
* The Encogen Generating Station in Whatcom County is a combined-cycle natural gas-fired plant capable of generating 167 MW of electricity.
* The Goldendale Generating Station in Klickitat County is a combined-cycle natural gas-fired plant capable of generating 277 MW of electricity.
* The Mint Farm Generating Station in Cowlitz County is a combined-cycle natural-gas-fired plant capable of generating 310 MW of electricity.
* The Fredonia Generating Station in Skagit County is a simple-cycle natural gas-fired plant capable of generating 316 MW of electricity.
* The Frederickson Generating Station in Pierce County is a simple-cycle natural gas-fired plant capable of generating 147 MW of electricity.
* The Frederickson 1 Generating Station in Pierce County is a combined-cycle natural gas-fired plant capable of generating 275 MW of electricity. PSE owns a 50% share, or 137 MW.
* The
Whitehorn Generating Station in Whatcom County is a simple-cycle natural gas-fired plant capable of generating 147 MW of electricity.
Wind power and other generation sources, such as biomass and
landfill gas, account for 1% of the utility's electricity fuel mix. PSE owns and operates these wind-power facilities:
* The Hopkins Ridge Wind Facility in southeast Washington's
Columbia County began commercial production in 2005. Hopkins Ridge's 87 wind turbines have the capacity to generate 157 MW of electricity.
* The
Wild Horse Wind and Solar Facility in central Washington's Kittitas County began production in 2006 and was expanded to include 22 turbines in 2009. Wild Horse's 149 wind turbines have the capacity to generate 273 MW of electricity.
* In 2012, the first phase of the
Lower Snake River Wind Project The Lower Snake River Wind Project is the newest and largest wind farm operated by Puget Sound Energy
Puget Sound Energy (PSE) is an energy utility company based in the U.S. state of Washington that provides electrical power and natural gas to ...
began in Southeast Washington's Garfield County. Lower Snaker River Phase 1's 149 turbines have the capacity to generate 343 MW of electricity.
Coal-fired power is a major contributor to PSe's fuel mix at 36% of PSE's 2018 electricity generation sources, the largest share in 2018. The company owns a stake of the Colstrip Unit 3 coal power plant in eastern Montana.
A
net metering
Net metering (or net energy metering, NEM) is an electricity billing mechanism that allows consumers who generate some or all of their own electricity to use that electricity anytime, instead of when it is generated. This is particularly importa ...
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
Ballot Initiative 937 (official name Initiative measure no. 937, known as I-937) is a clean energy initiative passed in the US state of Washington, appearing on the ballot in the November 2006 elections. It passed with 52 percent of the vote.
Co ...
energy efficiency programs, adding an average 25 additional "
Negawatts
A negawatt market is a proposed idea of implementation of the demand response ( balancing the electrical grid through the changes in consumption) that uses an energy market where the commodity traded is a ''negawatt-hour'', a unit of energy sa ...
" 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.
History
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 led by
Macquarie Group
Macquarie Group Limited () is an Australian global financial services group. Headquartered and listed in Australia (), Macquarie employs more than 17,000 staff in 33 markets, is the world's largest infrastructure asset manager and Australia' ...
, 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
The Washington Utilities and Transportation Commission (UTC) is a three-member board appointed by the Governor of Washington and confirmed by the Washington State Senate to six-year terms. The purpose of the UTC is to regulate the rates, services, ...
.
In 2018, Macquarie sold its ownership stake in PSE. PSE's current owners are
Alberta Investment Management Corporation, British Columbia Investment Management Corporation,
OMERS, and
PGGM.
Rates and emissions
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. In 2018, PSE reported total carbon-dioxide-equivalent emissions of 10,512,364 metric tons due to electricity operations and 4,989,403 metric tons due to natural gas operations, which equate to 9 and 6 metric tons per customer respectively. PSE figures emissions of 0.169 metric tons per user according to EPA GHG MRR Subpart DD.
References
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Electric power companies of the United States
Public utilities of the United States
Hydroelectric power companies of the United States
Natural gas companies of the United States
Companies based in Bellevue, Washington
American companies established in 1997
Public utilities established in 1997
1997 establishments in Washington (state)