Lower Granite— 810 MW Hydroelectric
Lower Granite is an essential hydroelectric power generation facility located in the United States, with geographic coordinates of 46.6595, -117.4294. This power plant, commissioned in 1976, boasts a capacity of 810 MW, making it a key contributor to the renewable energy framework of the region. Operated by the U.S. Army Corps of Engineers (USACE) Northwestern Division, Lower Granite utilizes advanced hydro power technology, converting the potential energy of flowing water into electricity through a series of turbines. This method not only provides a reliable energy source but also supports the grid's stability in the Pacific Northwest, where it plays a pivotal role in meeting the energy demands of the local population. The plant's strategic location on the Snake River enhances its ability to generate significant electrical output while also contributing to flood control and irrigation in the surrounding areas. Lower Granite is integral to the region's energy mix, supporting federal and state policies aimed at increasing the share of renewable energy in the overall energy portfolio. With the focus on sustainability and reducing carbon emissions, hydroelectric plants like Lower Granite are becoming increasingly vital to the United States' energy strategy. The USACE ensures that the facility operates efficiently and in compliance with environmental regulations, fostering an energy generation environment that balances ecological responsibility with the need for reliable electricity. In essence, Lower Granite exemplifies the potential of renewable energy technologies, solidifying its importance in both the local grid and the national energy landscape.
50 years old
United States of America, North America
- 510. largest of 10,098 plants in United States of America
- #2,977 worldwide by installed capacity
- #462 of 8,493 Hydroelectric plants worldwide
- 0.06% of the installed capacity of United States of America
50 years in operation
Hydroelectric fleet average: 42.1 years
USACE Northwestern Division operates 21 plants totalling 13,111 MW
14 plants within 100 km, 3,313 MW combined
Location
Zero Direct Emissions
Lower Granite is a hydro power plant producing approximately 2838 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
Lower Granite Hydroelectric Power Plant: A Key Component of America's Renewable Energy Landscape
The Lower Granite Hydroelectric Power Plant, located on the Snake River in Washington State, is a significant facility within the United States' renewable energy sector. Owned by the U.S. Army Corps of Engineers (USACE) Northwestern Division, this power plant was commissioned in 1976 and has a total capacity of 810 megawatts (MW). As a hydroelectric power plant, it harnesses the kinetic energy of flowing water to generate electricity, playing a crucial role in providing clean and sustainable energy to the region and beyond.
Hydroelectric power is generated through the movement of water, typically from rivers or reservoirs, which drives turbines connected to generators. In the case of Lower Granite, the plant utilizes water from the Snake River, which is managed in conjunction with several dams and reservoirs along the river system. This method of energy production is considered renewable, as it relies on the natural water cycle and does not deplete resources like fossil fuels. Furthermore, hydroelectric power plants like Lower Granite contribute to grid stability and reliability, as they can quickly respond to fluctuations in electricity demand.
The environmental impact of hydroelectric plants is a complex subject. While they produce clean energy with low greenhouse gas emissions during operation, they can also affect local ecosystems. The construction of dams alters the natural flow of rivers, which can impact fish populations and other aquatic life. At Lower Granite, measures have been implemented to mitigate these effects, including fish ladders and bypass systems designed to assist migrating fish species. These efforts aim to balance energy production with ecological preservation, ensuring the health of the river's ecosystem.
Regionally, Lower Granite plays a vital role in the power supply for the Pacific Northwest and surrounding areas. It is integral to the Columbia Basin hydropower system, which is one of the largest in the United States. By providing a substantial amount of electricity, Lower Granite helps to meet the energy needs of residential, commercial, and industrial users, while also supporting economic growth in the region. The plant contributes to energy security by diversifying the energy mix and reducing reliance on fossil fuels, aligning with national goals for clean energy and sustainability.
In summary, the Lower Granite Hydroelectric Power Plant is a critical asset in the United States' energy framework. Its capacity of 810 MW and reliance on hydroelectric power underscore its importance in promoting renewable energy. While it faces environmental challenges typical of hydroelectric facilities, ongoing efforts to mitigate these impacts demonstrate a commitment to balancing energy production with ecological integrity. As energy demands continue to evolve, the role of facilities like Lower Granite will remain paramount in shaping a sustainable energy future.
United States of America — Energy Profile
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