United States

Rocky Reach — 1,300 MW Hydroelectric

Hydroelectric Renewable Verified

Rocky Reach is a 1,300 MW hydro power plant located in United States of America. View location, capacity, and technical details.

Capacity
1,300 MW

Installed

Commissioned
1965

Year online

Owner
PUD No 1 of Chelan County

Operator

Location
47.53, -120.30

Coordinates

Insights

#257
largest in United States of America
#206
largest Hydroelectric worldwide
#1,668
largest worldwide
1965
19 yrs older than avg
3
operated by PUD No 1…
13
plants within 100 km

Technical Details

Fuel Type
Hydroelectric
Capacity
1,300 MW
Commissioned
1965
Status
Operational
Owner
PUD No 1 of Chelan County
Country
United States
Coordinates
47.534, -120.295

Carbon Footprint

Annual CO₂
109,291 t

tonnes / year

Lifetime CO₂
8,743,293 t

over ~80 yrs

Intensity
24 g

Est. gCO2/kWh

Annual emissions equivalent to

23,759
cars per year
14,572
homes per year
4,967,780
trees to offset

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

Nearby Plants

About this plant

The Rocky Reach Hydroelectric Power Plant, located on the Columbia River in the state of Washington, is a significant contributor to the United States’ renewable energy landscape. With a capacity of approximately 1,299.6 megawatts (MW), it stands as one of the largest hydroelectric facilities in the country. Commissioned in 1965 and owned by the Public Utility District No. 1 of Chelan County, Rocky Reach plays a pivotal role in providing clean, renewable energy while supporting regional economic development and environmental stewardship.

As a hydroelectric power plant, Rocky Reach utilizes the kinetic energy of flowing water to generate electricity. The facility harnesses the natural flow of the Columbia River, which is one of the most powerful rivers in North America, to drive turbines that convert the energy of moving water into electrical power. Hydropower is considered one of the cleanest forms of energy, as it produces no direct emissions of greenhouse gases, thereby contributing to the reduction of air pollution and climate change impact compared to fossil fuels. The operation of Rocky Reach aligns with the growing demand for sustainable energy sources in the face of increasing environmental concerns.

In terms of technical specifics, Rocky Reach features a series of turbines and generators designed to optimize efficiency and output. The plant typically operates in a run-of-river mode, meaning that it generates power based on the natural flow of the river, minimizing its impact on local ecosystems. This operational approach not only helps to maintain river conditions but also ensures that it can provide a consistent and reliable power supply to the grid, especially during peak demand periods.

The environmental impact of the Rocky Reach facility is a critical consideration. While it generates renewable energy, the construction and operation of hydroelectric plants can alter aquatic habitats and affect fish populations. To mitigate these impacts, Rocky Reach has implemented various environmental stewardship programs, including fish passage solutions that allow salmon and other species to migrate upstream and downstream. These initiatives are essential for maintaining biodiversity and supporting the health of the river ecosystem.

Regionally, Rocky Reach serves not only as a power generator but also as a critical resource for local communities. It contributes to job creation, both directly within the plant and indirectly through supporting industries. Furthermore, the availability of reliable, renewable energy has attracted businesses to the area, bolstering economic growth. The plant also plays a role in regional flood management and irrigation, making it an integral part of the broader water management strategy in the Columbia River Basin.

Overall, the Rocky Reach Hydroelectric Power Plant exemplifies the potential of renewable energy sources to meet the energy needs of the United States while minimizing environmental impact. Its efficient operation and commitment to sustainability make it a key player in the transition to a cleaner energy future.

More Hydroelectric plants

Spotted an error?

Our data is community-verified. If any detail looks wrong or out of date, suggest a correction below — our team reviews and applies approved changes across all languages.