World Power Plants

H M Jackson111.8 MW Hydroelectric

HydroRenewableVerified: Jul 2026

H M Jackson is a hydroelectric power station with a capacity of 111.8 MW located in the United States. The plant is operated by PUD 1 of Snohomish County and was commissioned in 1984. It utilizes water flow to generate electricity. H M Jackson ranks as the 177th largest hydro plant in the United States. With its capacity of 111.8 MW, it contributes approximately 0.09% to the country's total hydro capacity of 117,947 MW. The U.S. has 1,469 hydro plants with a combined capacity of 117,947 MW. Compared to the largest hydro plant, Grand Coulee Dam at 6,809 MW, H M Jackson is about 1.6% the size. Hydropower is a vital part of the U.S. energy landscape, supplying around 6% of the total electricity generation. The Pacific Northwest, where H M Jackson is located, is known for its abundant water resources. The plant is situated approximately 70 miles northeast of Seattle.

Capacity
111.8 MW
Commissioning Year
1984

42 years old

Owner
PUD 1 of Snohomish County
Location
47.9084°, -121.8144°

United States of America, North America

Context & rankings
  • 2,000. largest of 10,098 plants in United States of America
  • #9,582 worldwide by installed capacity
  • #2,168 of 8,493 Hydroelectric plants worldwide
  • 0.01% of the installed capacity of United States of America
Age & fleet comparison

42 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

PUD 1 of Snohomish County operates 6 plants totalling 136 MW

Regional density

28 plants within 100 km, 1,239 MW combined

Nearest plant: Youngs Creek Hydroelectric Project (13 km)

Location

Coordinates:: 47.908400, -121.814400
Open in Google Maps
Carbon Footprint

Zero Direct Emissions

H M Jackson is a hydro power plant producing approximately 392 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

See Incorrect or Missing Data?

Help us improve our database by reporting any corrections or updates. Your contribution helps keep our global power plant data accurate and up-to-date.