HYDROPOWER POTENTIAL OF NEUQUÉN PROVINCE

Hydropower potential of Neuquén province – Existing structures

Hydroelectric power plant

Installed Power (MW)

Annual Mean Energy (GWh/a)

Alicurá 1.050 2.360

Piedra del Águila 1.400 5.500

Pichi Picún Leufú 261 1.080

El Chocón 1.200 3.600

Arroyito 128 720

Planicie Banderita 479 1.512

TOTAL 4.518 14.772

Hydropower potential of Neuquén province

Order No. Name Installed Power (MW) 4 Atreuco 54 6 Buta Pailán 94 7 Caleufú (alim. Alicurá) 100 8 Calfulén 38 9 Cerro Rayoso 472 14 Coli Michicó 50 15 Collón Curá 376 16 Covunco 108 17 Curamileo 34 18 El Chacayal 181 19 El Chañar 69 20 Chihuido I 637 21 Chihuido II 228 24 Huaraco 48 25 Huitrín 210 26 La Invernada 322 27 La Rinconada 200 28 La Salada 34 29 Las Lajas 48 30 Loncopué 16 31 Los Guiones 30 33 Manzano Amargo 30 34 Matancilla 64 35 Michihuao 621 38 Pantanitos 190 41 Pini Mahuida 457 43 Puesto de Paja 38 45 Rincón de la Medialuna 270 46 Roblecillos 46 48 Segunda Angostura 120 50 Talhelum 240

Total 5425

Hydropower potential of Neuquén province

Order Name Installed Power (MW) 4 Atreuco 54 6 Buta Pailán 94 9 Cerro Rayoso 472

14 Coli Michicó 50 16 Covunco 108 17 Curamileo 34 19 El Chañar 69 20 Chihuido I 637 21 Chihuido II 260 24 Huaraco 48 25 Huitrín 210 26 La Invernada 322 28 La Salada 34 29 Las Lajas 48 30 Loncopué 16 31 Los Guiones 30 33 Manzano Amargo 30 34 Matancilla 64 41 Pini Mahuida 457 46 Roblecillos 46

Total 3083

RÍO NEUQUÉN BASIN

Rise in level: from May to July due to rainfalls, and from October to December due to thaw. Hydropower projects existing: Cerros Colorados Hydroelectric Complex

Area: 30,000 km2 (up to Paso de los Indios)

Río Neuquén Length: 440 km Río Neuquén Flowrate: 309 m3/s at Paso de los Indios/La Higuera. Probable Maximum Rise in Level: 25.070 m3/sec Decamillenary Rise in Level: 20.200 m3/sec

Cerros Colorados Hydroelectric Complex

RÍO NEUQUÉN BASIN

System to control rise in level and regulation of flows from Río Neuquén to ensure water supply for human consumption, irrigation and hydropower generation.

It consists of the following dams:

Portezuelo Grande has a handling capacity of up to 11,500 m3/sec rise in level, of which 7,900 m3/sec are derived to Los Barreales basin and 3,600 m3/sec must be derived to the Portezuelo Grande-El Chañar section that, under normal operating conditions, has a constant flow of 12 m3/sec. Planicie Banderita Power Plant:

- Portezuelo Grande - Loma de la Lata - Planicie Banderita - Chañar

It forms the following reservoirs:

- Los Barreales - Mari Menuco - El Chañar

- Installed Power : 479 MW - Annual Mean Energy: 1.512 GWh/year.

PRIORITIZED PROJECTS ON RÍO NEUQUÉN BASIN

Chihuido I Chihuido II Cerro Rayoso Huitrín La Invernada Pini Mahuida El Chañar Los Guiones Colo Michicó

GREATER SAFETY

BEST SUPPLY

MORE ENERGY

Chihuido I Multipurpose Project

OBJECTIVES

WORK TECHNICAL DATA - Height: 105 Mts. - Length: 1,035 Mts. - Crest width: 12 Mts. - Dam crest elevation: 631 m.a.s.l. - Dam type: Concrete-faced rockfill (CFRD) -Number of machines: 4 Francis type turbines. - Power generation: 637 Mw. - Annual Mean Energy: 1.750 GWh/year.

EXTRA HIGH VOLTAGE LINE (EHVL) 500 kV Line – Interconnection Chihuido I –

Agua del Cajón – 130 km 500 kV Transforming Station

Chihuido I Multipurpose Project

FUTURE RESERVOIR AREA

Chihuido I Multipurpose Project

Chihuido I Lake

Nominal Power (MW) * 260

Mean Energy (GWh/year)* 1200

Maximum Elevation (m.a.s.l.)* 532

Nominal Fall (m)* 56

Dam length (m) 890

Reservoir Area (Km²) 65

•Preliminary draft and under Chihuido I compatibility study •Additional basic research is needed to continue with the dam design

Chihuido II Project

• Subject to the results of the optimization study with Chihuido I

Pini Mahuida – La Invernada Huitrín – Cerro Rayoso

Emhidro SEP, through an agreement entered into with Neuquén Mining Department, has carried out geological surveys of Pini Mahuida, La Invernada and Cerro Rayoso areas, to establish their regional geological and structural features. As part of the Studies Program of the Energy Sector (PESE, in Spanish) of the Department of Energy's Office, which is funded by the Andean Development Corporation (CAF, in Spanish) the development of the bidding construction projects has been tendered and awarded. The estimated date for the start of works is October 2015 and will be conducted by the consulting firms INTERTECHNE - HISSA - HCA and GRIMAUX. Pini Mahuida, La Invernada and Cerro Rayoso projects have been included in the “Power Works for the National Development and Integration Plan” prepared by the National Government in 2014 year.

River Neuquén Area Cerro Rayoso

Reservoir Elevation (m.a.s.l.) 820 Fall(m) 115

Crown Elevation (m.a.s.l.) 825 Average Flow (m3/s) 242

Power (MW) 472 Generation(GWh) 2067

Geogra. Coord. (Latitude) S 37º 47´ Geogra. Coord. (Longitude) W 69º 51´

GEOGRAPHIC LOCATION

CERRO RAYOSO

River Neuquén Area Huitrín

Reservoir Elevation (m.a.s.l.) 820 Fall(m) 51

Crown Elevation (m.a.s.l.) 825 Average Flow (m3/s) 245

Power (MW) 210 Generation(GWh) 921

Geogra. Coord. (Latitude) S 37º 39´ Geogra. Coord. (Longitude) W 70º 01´

GEOGRAPHIC LOCATION

HUITRÍN

River Neuquén Area La Invernada

Reservoir Elevation (m.a.s.l.) 950 Fall(m) 84

Crown Elevation (m.a.s.l.) 955 Average Flow (m3/s) 226

Power (MW) 322 Generation(GWh) 1409

Geogra. Coord. (Latitude) S 37º 22´ Geogra. Coord. (Longitude) W 70º 28´

LA INVERNADA GEOGRAPHIC LOCATION

River Neuquén Area Pini Mahuida

Reservoir Elevation (m.a.s.l.) 1070 Fall(m) 120

Crown Elevation (m.a.s.l.) 1073 Average Flow (m3/s) 225

Power (MW) 457 Generation(GWh) 2000

Geogra. Coord. (Latitude) S 37º 21´ Geogra. Coord. (Longitude) O 70º 41´

PINI MAHUIDA GEOGRAPHIC LOCATION

30 Km PINI MAHUIDA 320 MW

LA INVERNADA 320 MW

HUITRIN 210 MW

CERRO CAYOSO 260 MW

CHIHUIDO I 670 MW

AGUA DEL CAJÓN

EL CORTADERAL

500 KV LINE THAT IS PART OF CHIHUIDO I PROJECT

POSSIBLE 500 KV LINE TO COMPLETE THE EVACUATION OF RÍO NEUQUÉN PLANTS

References: Existing 500 kV Future 500 kV

500 kV LINES PLANNED

Source: Cammesa

Los Guiones – Colo Michicó

As part of the Argentine Secretary of Energy's PESE Program, which is funded by the CAF, the contract for the preparation of bidding construction projects, with estimated completion date of November 2015, is under preparation.

Los Guiones -Río Nahueve -Average Flow: 43 m3/s -Installed Power: 30 MW -Generation: 132 GWh/year

Colo Michicó -Río Neuquén -Average Flow: 105 m3/s -Installed Power: 50 MW -Generation: 223 GWh/year

Maximum Elevation (m.a.s.l.) 339.5

Nominal Fall (m) 8.81

Average Performance Level (Kwh/m3) 0.016

Nominal Power (MW) 24

Mean Energy (GWh/year) 139

Utilization Factor 68%

El Chañar Hydropower Plant

The works will help to meet the growing demand for electricity in the country by taking advantage of the dam built and adding the necessary electromechanical equipment.

The Pant is located at 6 km of a 132 kV HVL, which delivers the energy generated at Provincial Interconnected System (SIP) and, through it, to the National Interconnected System (SIN).

Power Distribution in Neuquén

High Voltage Grid in 2011

Neuquén province is head of 5 extra high voltage lines of 500 kv.

MAPA AREAS COMPONENTES DEL PA Color gris Área extractiva Color verde Área soporte Operating Area – Vaca Muerta Geological Formation

References

Exploitation Area

Support Area

Source: Strategic Study for the Territorial Development of Vaca Muerta Region. The challenge of sustainability in the region within the framework of unconventional hydrocarbon reservoir exploitation

Chihuido I

Chihuido II

Cerro Rayoso

Huitrín

La Invernada

Pini Mahuida

Projected Area

El Chañar

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