World Power Plants

Três Marias396 MW Hydroelectric

HydroRenewable

Três Marias, located in the heart of Brazil, is a hydroelectric power generation facility that has been operational since its commissioning in 1962. With a capacity of 396 MW, this power plant significantly contributes to Brazil's energy generation mix, predominantly fueled by renewable sources. The facility is strategically positioned at coordinates -18.2150° S and -45.2592° W, near the São Francisco River, which provides a consistent water flow essential for its operations. As a hydroelectric power plant, Três Marias employs traditional dam technology to harness the kinetic energy of flowing water, converting it into clean electricity. This makes it a vital component in Brazil's efforts to promote sustainable energy practices. The Brazilian government has been actively pursuing policies aimed at increasing the share of renewable energy in the national grid, and Três Marias plays a key role in this initiative by providing a reliable and eco-friendly source of power. The plant not only supports local communities with much-needed electricity but also bolsters economic development in the region. As Brazil continues to focus on renewable energy, the significance of Três Marias cannot be overstated, as it exemplifies the country’s commitment to harnessing its rich natural resources for sustainable energy production.

Capacity
396 MW
Commissioning Year
1962

64 years old

Owner
Companhia Energética de Minas Gerais
Location
-18.2150°, -45.2592°

Brazil, South America

Context & rankings
  • 112. largest of 2,402 plants in Brazil
  • #5,340 worldwide by installed capacity
  • #899 of 8,493 Hydroelectric plants worldwide
  • 0.16% of the installed capacity of Brazil
Age & fleet comparison

64 years in operation

Hydroelectric fleet average: 42.1 years

Operator portfolio

Companhia Energética de Minas Gerais operates 32 plants totalling 4,558 MW

Regional density

8 plants within 100 km, 867 MW combined

Nearest plant: WD (76.3 km)

Location

Coordinates:: -18.215000, -45.259200
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Carbon Footprint

Zero Direct Emissions

Três Marias is a hydro power plant producing approximately 1388 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
Brazil
Continent
South America
Data Source
Global Power Plant Database

BrazilEnergy Profile

2,402
Total Plants
250.4 GW
Total Capacity
HydroGasBiomassWind
Top Fuels

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