Understand How does a hydroelectric power plant work? This is one of the most common questions among visitors to Itaipu and people interested in better understanding how water can be transformed into electricity.
After all, hydroelectric power plants are among the main sources of energy supply in Brazil and are part of the daily lives of millions of people.
In the case of Itaipu Hydroelectric Power PlantIn addition to its energy importance, the structure impresses with its engineering grandeur, gigantic numbers, and economic, social, and environmental impact on the Triple Frontier region.
So, if you want to understand how a hydroelectric power plant works and discover interesting facts about how Itaipu operates, keep reading!
What is a hydroelectric power plant?
One of the hydroelectric plant It is a structure built to transform the force of water into electrical energy.
Thus, this type of power plant harnesses the hydraulic energy of rivers to move turbines which, subsequently, drive generators responsible for producing electricity.
In other words, water is the main source of energy used in this system.
Furthermore, hydroelectric power is considered a clean and renewable source, as it uses natural resources without burning fossil fuels.
What is a hydroelectric power plant used for?
The main function of a hydroelectric power plant is to generate electricity to supply cities, industries, businesses, and homes.
In Brazil, this type of generation is extremely important, since a large part of the electricity consumed in the country comes precisely from hydroelectric plants.
In addition, the plants also help:
- In economic development
- In energy security
- In the stability of the electrical system
- In reducing the emission of polluting gases.
In the case of the Itaipu Hydroelectric Power Plant, its importance is even greater, since it supplies energy to millions of people in Brazil and Paraguay.
How does a hydroelectric power plant work?
The operation of hydroelectric power plants occurs in relatively simple steps, although the engineering behind it is extremely complex.
Check out how it works:
1. Formation of the Reservoir
First, the dam holds back the river water, forming a large reservoir.
This storage creates a height difference necessary to generate hydraulic power.
In Itaipu, for example, the dam creates a gross drop of approximately 120 meters.
2. Water Inlet at Outlets
The water passes through what are called water intakes, structures located in the dam.
Those water inlets They control the flow directed to the penstocks, the famous white pipes seen on tourist tours.
3. Turbine Movement
The water flows down with great pressure through the penstocks and reaches the turbines.
With this, the turbines begin to rotate using hydraulic power.
4. Electricity Generation
The movement of the turbines powers the generators.
So, mechanical energy is transformed into electrical energy.
5. Energy Distribution
After that, the generated electricity goes through transformers and travels along transmission lines to different regions of the country.
How does the Itaipu Hydroelectric Power Plant work?
The Itaipu Hydroelectric Power Plant operates following exactly this hydraulic principle, but on a gigantic scale.
Located on the Paraná River, on the border between Brazil and Paraguay, Itaipu is a binational power plant and one of the largest generators of clean and renewable energy on the planet.
Thus, its operation is impressive both in terms of numbers and operational efficiency.
Type of Itaipu Hydroelectric Power Plant
Itaipu is a hydroelectric power plant with a storage capacity. This means that it uses a large dam to form a reservoir capable of storing enormous volumes of water.
This model allows for greater control over energy generation, especially during periods of climate variation.
Furthermore, the Itaipu reservoir holds approximately 1.350 km² in area.
How much energy does the Itaipu hydroelectric power plant generate?
Itaipu's energy generation impresses the entire world.
Finally, the power plant has:
- 20 generating units
- Installed capacity of 14.000 MW
- Average annual production of approximately 90 million megawatt-hours.
Furthermore, the energy produced by the plant supplies a large part of the South, Southeast, and Midwest regions of Brazil, as well as Paraguay.
In fact, Itaipu is responsible for approximately 8,7% of the energy consumed in Brazil and approximately 86% of the energy used in Paraguay.
Itaipu Hydroelectric Power Plant Operation: Main Structures
The operation of the power plant depends on several integrated structures.
Here are some of the main ones:
Dam
The dam is responsible for holding back the water of the Paraná River and creating the necessary drop in water level to power the turbines. It is approximately 196 meters high and almost 8 kilometers long.
Forced Conduits
Penstocks carry pressurized water to the turbines.
Thus, they move 700 m³/s of water, equivalent to the average flow of 1/2 of the Iguaçu Falls, meaning that two of Itaipu's penstocks have the equivalent flow of one Iguaçu Falls.
Power House
The powerhouse houses the equipment responsible for generating electricity.
That's where you'll find:
- Turbines
- Generators
- Control system
- Electromechanical equipment.
Spillway
The spillway controls excess water from the reservoir. When open, it creates an impressive spectacle that delights tourists from all over the world.
Its maximum flow rate reaches 62.200 cubic meters per second.
Interesting Facts About How Itaipu Works
The plant's figures are still impressive today.
Check out some Interesting Facts:
- The volume of concrete used in the project would be enough to build 210 Maracanã stadiums.
- The amount of iron and steel would be enough to build 380 Eiffel Towers.
- It is estimated that more than 100 workers passed through the construction sites throughout the entire construction of the Itaipu Dam.
- The maximum flow rate of the spillway is 40 times greater than the average flow rate of the Iguazu Falls.
In addition, Itaipu receives approximately 1 million visitors per year.
How to Learn About the Operation of the Itaipu Hydroelectric Power Plant?
One of the best ways to understand in practice how the Itaipu hydroelectric power plant works is by carrying out the tourist walks.
Itaipu Panoramic
Ideal for exploring the exterior of the power plant and understanding the overall operation of the hydroelectric plant.
Itaipu Special
Allows you to visit interior areas, including:
- Central control room
- Engine house
- Turbines
- Operational galleries.
It's a fascinating experience for anyone who enjoys engineering and technology.
Why is Itaipu so important?
In addition to generating energy, Itaipu plays a fundamental role in areas such as:
- Sustainability
- Energy security
- Regional development
- Tourism
- environmental preservation
- International cooperation.
That is, the The power plant goes far beyond engineering., as it represents a global example of clean energy generation associated with economic and social development.
So, did you get a better understanding of how a hydroelectric power plant works?
So, enjoy your trip to Foz do Iguaçu Come and experience the grandeur of the Itaipu Hydroelectric Power Plant firsthand!
Images: Itaipu Tourism; Best Destinations


