World Power Plants

Ralco Hydroelectric Plant690.12 MW Hydroelectric

HydroRenewableVerified: Feb 2026

The Ralco Hydroelectric Plant, situated in Chile at coordinates -37.9984, -71.5176, represents a vital component of the country’s renewable energy strategy. With a significant capacity of 690.12 MW, this hydroelectric facility harnesses the power of flowing water to generate electricity, providing a clean and sustainable energy source for the region. Operated by Enel Generación Chile, the Ralco plant plays an essential role in the national energy mix, helping to reduce dependency on fossil fuels while contributing to the country’s goals of decreasing greenhouse gas emissions. The hydroelectric technology implemented at Ralco involves the construction of a dam that captures and regulates river water flow, ensuring a consistent supply of energy generation throughout the year. This facility not only supports the local grid but also contributes to the overall stability and reliability of Chile's electricity supply. Given Chile's commitment to increasing its renewable energy capacity, the Ralco Hydroelectric Plant exemplifies the potential of hydropower in achieving energy security and sustainability in South America.

Capacity
690.12 MW
Commissioning Year
2004

22 years old

Owner
Enel Generación Chile
Location
-37.9984°, -71.5176°

Chile, South America

Context & rankings
  • 5. largest of 383 plants in Chile
  • #3,521 worldwide by installed capacity
  • #563 of 8,493 Hydroelectric plants worldwide
  • 2.19% of the installed capacity of Chile
Age & fleet comparison

22 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Enel Generación Chile operates 10 plants totalling 2,658 MW

Regional density

31 plants within 100 km, 4,807 MW combined

Nearest plant: PALMUCHO (6.6 km)

Data provenance

Source: Wikidata

Location

Coordinates:: -37.998353, -71.517625
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Carbon Footprint

Zero Direct Emissions

Ralco Hydroelectric Plant is a hydro power plant producing approximately 2418 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
Chile
Continent
South America
Data Source
Global Power Plant Database

Ralco Hydroelectric Plant: A Key Player in Chile's Renewable Energy Landscape

The Ralco Hydroelectric Plant, located in the Biobío Region of Chile, is a significant contributor to the nation's energy sector with a generating capacity of 690.12 megawatts (MW). Owned by Enel Generación Chile, this hydroelectric facility plays a crucial role in providing renewable energy to the country's grid, supporting Chile's commitment to sustainable energy development and reducing reliance on fossil fuels.

Hydroelectric power is generated by harnessing the kinetic energy of flowing water, which turns turbines to produce electricity. The Ralco plant utilizes the flow of the Biobío River, one of Chile's major rivers, to generate power. The facility is equipped with advanced technology that optimizes the efficiency of energy production while ensuring minimal disruption to the river's ecosystem. The use of hydroelectric energy is particularly significant in Chile, as it accounts for a substantial portion of the country's electricity generation, contributing to a cleaner energy mix and helping to mitigate the impacts of climate change.

As a hydroelectric plant, Ralco has a relatively low environmental impact compared to traditional fossil fuel-based power generation. The plant's operation helps to reduce greenhouse gas emissions, making it an essential component of Chile's strategy to transition to a more sustainable energy future. However, the construction and operation of large hydroelectric facilities can have ecological consequences, including alterations to river flow and impacts on local wildlife habitats. In the case of Ralco, efforts have been made to address these concerns through environmental management practices and community engagement initiatives.

The regional significance of the Ralco Hydroelectric Plant extends beyond its energy output. It serves as an important source of employment and economic activity in the surrounding areas, providing jobs during both the construction and operation phases. The plant also contributes to local infrastructure development, including roads and facilities that benefit the community. Furthermore, as Chile aims to increase its renewable energy capacity, projects like Ralco showcase the potential for hydroelectric power to meet growing energy demands while promoting environmental stewardship.

Overall, the Ralco Hydroelectric Plant exemplifies the role of renewable energy in Chile's energy landscape. By leveraging the natural resources of the Biobío River, it not only supports the country’s electricity needs but also aligns with global efforts to promote sustainable energy solutions. The plant's integration into the national grid highlights the importance of hydroelectric power in achieving energy security and sustainability in Chile.

ChileEnergy Profile

383
Total Plants
31.5 GW
Total Capacity
HydroGasCoalSolar
Top Fuels

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