World Power Plants

ONeill is a 25.2 MW hydroelectric power plant in the United States, operated by the U.S. Bureau of Reclamation. Commissioned in 1967, it plays a role in the renewable energy sector. Ranked #448 of 1469 hydro plants in the United States, ONeill's 25.2 MW represents 0.02% of the total hydro capacity of 117,947 MW. The largest hydro plant in the United States is Grand Coulee Dam at 6,809 MW, making ONeill 270 times smaller. Nearby plants within 50 km include W R Gianelli (424 MW, Hydro), Gianelli Powerhouse (424 MW, Hydro), and Walnut Energy Center (300.6 MW, Gas). The facility is located in California, approximately 80 km from San Francisco.

Capacity
25.2 MW
Commissioning Year
1967

59 years old

Owner
U S Bureau of Reclamation
Location
37.0987°, -121.0477°

United States of America, North America

Context & rankings
  • 3,655. largest of 10,098 plants in United States of America
  • #17,677 worldwide by installed capacity
  • #4,079 of 8,493 Hydroelectric plants worldwide
Age & fleet comparison

59 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

U S Bureau of Reclamation operates 59 plants totalling 15,054 MW

Regional density

164 plants within 100 km, 8,981 MW combined

Nearest plant: Quinto Solar PV Project (3.5 km)

Location

Coordinates:: 37.098700, -121.047700
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Carbon Footprint

Zero Direct Emissions

ONeill is a hydro power plant producing approximately 88 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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