United States

Priest Rapids — 956 MW Hydroelectric

Hydroelectric Renewable Verified

Priest Rapids is a 956 MW hydro power plant located in United States of America. View location, capacity, and technical details.

Capacity
956 MW

Installed

Commissioned
1960

Year online

Owner
PUD No 2 of Grant County

Operator

Location
46.65, -119.91

Coordinates

Insights

#413
largest in United States of America
#406
largest Hydroelectric worldwide
#2,574
largest worldwide
1960
24 yrs older than avg
4
operated by PUD No 2…
36
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
956 MW
Commissioned
1960
Status
Operational
Owner
PUD No 2 of Grant County
Country
United States
Coordinates
46.645, -119.908

Estimated Carbon Footprint

Annual CO₂
80,362 t

tonnes / year

Lifetime CO₂
6,428,971 t

over ~80 yrs

Intensity
24 g

gCO₂ per kWh

Annual emissions equal to

17,470
cars / year
10,715
homes / year
3,652,824
trees to offset

Renewable source — life-cycle emissions only (materials/construction), no direct combustion. Open calculator

Nearby Stations

About this plant

The Priest Rapids Hydroelectric Power Plant, located on the Columbia River in Washington State, is a significant contributor to the United States’ renewable energy landscape. Commissioned in 1960 and owned by Public Utility District No. 2 of Grant County, the plant has a generating capacity of approximately 955.6 megawatts (MW). This capacity allows it to play a crucial role in providing electricity to a wide region, supporting both residential and industrial energy demands. As a hydroelectric facility, Priest Rapids leverages the kinetic energy of flowing water to generate electricity, making it a clean and renewable source of energy that aligns with national efforts to reduce reliance on fossil fuels and lower greenhouse gas emissions.

Hydroelectric power generation is based on the principle of harnessing water flow. Water is directed through turbines, and as it moves, it spins the turbines, which in turn activate generators to produce electricity. This method of power generation is efficient and can be adjusted quickly to meet changing energy demands, providing a reliable base load of power. The Priest Rapids facility utilizes the natural flow of the Columbia River, capitalizing on its elevation changes to maximize energy production without the need for fossil fuels.

The environmental impact of hydroelectric plants can be both positive and negative. On one hand, hydroelectric power is associated with low emissions during operation, and it can help reduce air pollution and combat climate change. However, the construction and operation of dams can disrupt local ecosystems, affect fish populations, and alter water quality. At Priest Rapids, measures have been implemented to mitigate these effects, including fish passage systems that allow migratory fish species to navigate around the dam.

Regionally, the Priest Rapids Power Plant is integral to the local economy and energy infrastructure. It not only provides a substantial amount of electricity to the Pacific Northwest but also supports local jobs in energy production, maintenance, and environmental stewardship. The facility plays a vital role in the balance of energy supply in the region, particularly during periods of high demand or drought, when other sources of energy may be less reliable.

In conclusion, the Priest Rapids Hydroelectric Power Plant stands as a testament to the United States’ investment in renewable energy sources. Its substantial capacity, efficient hydroelectric technology, and commitment to environmental stewardship underscore its importance in the energy sector. As the nation continues to transition towards more sustainable energy practices, the role of facilities like Priest Rapids will be increasingly important in ensuring a reliable, clean, and responsible energy supply for future generations.

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