enerpeixe

LOCATION

River

Tocantins

State

Tocantins

Municipality

Peixe

HIDROMETEOROLOGY

10,000- YearFlow Rate (m/s)

33.855

Average Flow Rate (1931/2000) ​(m/s)

1.683

RESERVOIR

NA normal maximum upstream (m)

263.00

NA normal minimum upstream (m)

261.00

NA normal maximum downstream (m)

241.58

​NA normal minimum downstream (m)

233.90​

Normal maximum NA area ​(km)

294.1​

​Maximum normal NA volume (106 m)

​2.741

DAM

Crest Length (m)

6.148,10

Maximum height (m)

39.00

​Crest Elevation (m)

​266.00

SPILLWAY

Capacity (m/s)​

37.044​

Number of voids:

9

Floodgates (type):

Segment

Floodgate width X height (m):

17,0 x 23,18

WATER INLET

Number of units:

3

Floodgate width X height (m):

7.7 x 17.0

​​FISH LADDER

​                                Length (m)   623,9

ENERGY

Average power  (average MW )

280,50

Guaranteed annual energy (GWh)

2.463

 

GENERATORS

Overall Installed Capacity (MW)

498,75​

Rated Power per Unit (MVA)

175

Synchronous Rotation (rpm)

85.71

Rated Voltage  (KV)

13,8​

Total Weight per Unit (KN)​

8​.850

 

 TURBINES

Type

Kaplan

Number of Units

3

Rated Power per Unit (MW)

166,25

​Net head benchmark (m)

24.30​

Rated Flow per Unit (m/s)​

​704

Total Weight per Unit (kn)

11.850​

TRANSMISSION LINE

LTSE Peixe A. - SE Gurupi Voltage (kv)

500

Length (km)

20

SERVICE QUANTITIES

Regular Excavation (10 m)

6.5

Rock Excavation (10 m)

1.0

Landfills/Rockfill (10 m)

8,4

Conventional Concrete (10 m)

644

Roller-compacted Concrete ​(10 m)

249

Cement (10 ton)

​194

Steel ​ (10 ton)

30​,8

DATES

Contractor Mobilization

15/04/2002

Suspension of works

27/11/2002

Resumption of works

15/10/2003

Start of powerhouse concrete

​09/01//2004

Start of river diversion - stage 2​

​28/04/2005

Operation permit

​13/01/2006

Start of Commercial Operation - UG1​

​27/06/2006

Start of Commercial Operation - UG2

​29/07/2006

Start of Commercial Operation - UG3

​16/09/2006

INVESTMENT

Total Amount Dec/2003

106 R$:1612

The project’s current area of influence covers the municipalities of Peixe and São Salvador do Tocantins, both located in the state of Tocantins.

 

Reservoir

NA normal maximum amount (m)

263.00

NA normal minimum amount (m)

261.00

NA normal maximum downstream (m)

241.58

NA normal minimum downstream (m)

233.90

Normal maximum MA area (km2)

294.1

*Normal maximum NA volume (10⁶ m³)

2.741

Dam

Crest length (m)

6.148,10

Maximum height (m)

39.00

Crest elevation (m)

266.00

Spillway

Capacity (m3/s)

37.044

Number of voids

9

Floodgates (type)

Segment

Floodgate width x height (m)

17,0 x 23,18

 

Designed to generate maximum energy with the lowest environmental impact, the project reduced the reservoir’s inundation area, thereby avoiding the flooding of the urban areas of São Salvador, Vila do Retiro and Paranã downtown.

 

Aware of its impact on the environment and the lives of the local population, Enerpeixe has implemented 30 socio-environmental programs simultaneously with engineering operations, in coordination with specialized teams, universities, and research institutions. These programs have reduced and offset the physical, biological and socio-economic impacts that had been identified in preliminary studies.