Find out How

The Santo Antônio Hydroelectric Plant depends on a combination of different structures in order to operate. Find out how it all takes place:

Spillways

These are the concrete structures responsible for offloading the excess of water from the dam during rainy periods.

The main spillway, with 15 openings, was built on the left bank and the complementary one, with 3 openings, is located on the right bank of the Madeira River.

The two spillways allow a volume of up to 84,000m³/s of water to pass.

Fish Transposition System (STP)

Is the system installed to guarantee the migration of fish up the river, so that they can pass the plant and follow their course as normal during the spawning season.

The STP project was studied for two years in an experimental canal built in the river itself (a new initiative in Brazil) and planned on a real scale to test the fishes’ behavior in conditions similar to those where the definitive system is located today.

Located on Presídio Island (near the right bank of the river), the Fish Transposition System is a corridor which reproduces the river’s characteristics, with rapids, natural barriers and a compatible opening, allowing the fish to get used to this new system and follow their natural cycle.

The system has been operating since December 2011 and successfully completed its first spawning season with the plant in operation.

Generator Sets (GG)

The Santo Antônio Hydroelectric Plant has four generator sets (or power houses) which can operate independently. Generator set 1 is located on the right bank of the Madeira River and has 8 turbines. There are two generator sets (2 and 3) on the left bank of the river with 12 turbines each. Generator set 4, with 12 turbines, is on the river bed.

Turbines

The bulb turbines generate energy with a variable flow and low falls, eliminating the formation of large reservoirs and reducing environmental impact. The water that passes through the turbines activates its blades, which are connected to a generator. The generator then transforms the hydraulic energy into electrical energy. The turbines are grouped together in power houses.

Permanent Preservation Areas (APP)

They are expanses of land which preserve nature at the river banks, lakes and reservoirs, being areas which are considered important for conserving and preserving animal and plant life. The Santo Antônio Hydroelectric Plant reservoir has a 39,000 hectare APP.

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