World Power Plants

The Mossyrock power plant, located in Washington State at coordinates 46.5347, -122.4247, is a prominent hydroelectric facility that contributes significantly to the region's energy generation capabilities. Commissioned in 1968 and operated by the City of Tacoma, this power generation facility has a capacity of 300 MW, utilizing the natural flow of water to generate clean electricity. The hydroelectric technology implemented at Mossyrock involves a dam structure that captures and channels the water flow, converting it into electrical energy through turbines. This renewable energy source is crucial for meeting the local and regional energy demands while also supporting Washington's commitment to sustainable energy practices. The operational context of the Mossyrock power plant is shaped by Washington's progressive energy policies, which emphasize the importance of renewable resources in mitigating climate change and promoting environmental health. As part of the larger hydroelectric network in the state, Mossyrock plays a vital role in ensuring grid stability and reliability, especially during peak demand periods. The facility's significance is further highlighted by its contribution to the local economy through job creation and its support for recreational activities in the surrounding areas. As Washington continues to lead the way in renewable energy development, the Mossyrock power plant stands out as a key player in the transition towards a more sustainable energy future.

Capacity
300 MW
Commissioning Year
1968

58 years old

Owner
City of Tacoma - (WA)
Location
46.5347°, -122.4247°

United States of America, North America

Context & rankings
  • 1,124. largest of 10,098 plants in United States of America
  • #6,026 worldwide by installed capacity
  • #1,086 of 8,493 Hydroelectric plants worldwide
  • 0.02% of the installed capacity of United States of America
Age & fleet comparison

58 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

City of Tacoma - (WA) operates 7 plants totalling 717 MW

Regional density

32 plants within 100 km, 6,221 MW combined

Nearest plant: Mayfield (13 km)

Location

Coordinates:: 46.534700, -122.424700
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Carbon Footprint

Zero Direct Emissions

Mossyrock is a hydro power plant producing approximately 1051 GWh of clean electricity per year with zero direct CO₂ emissions during operation.

Lifecycle emissions: ~24 g CO₂/kWh (manufacturing, transport, decommissioning)

Technical Details

Primary Fuel Type
Hydro
Energy Source
Renewable
Country
United States of America
Continent
North America
Data Source
Global Power Plant Database

United States of AmericaEnergy Profile

10,098
Total Plants
1420.7 GW
Total Capacity
GasCoalNuclearWind
Top Fuels

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