etude de faisabilité INGA aecom

7/28/2019 etude de faisabilit INGA aecom

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REPUBLIQUE DEMOCRATIQUE DU CONGOMINISTERE DES RESSOURCES HYDRAULIQUES ET LECTRICIT

Addis Ababa, April 2013Grand Inga Feasibility Study Hydro 2013

Grand Inga Development Project Production and Associated

Transmission Lines

Hydro 2013 Addis Ababa

16, 17, 18 April 2013

GRAND INGA FEASIBILITY STUDY

REPUBLIQUE DEMOCRATIQUE DU CONGO

MINISTERE DES RESSOURCES HYDRAULIQUES ET LECTRICIT

Presented by: Stphane St-Pierre,Co-Director

Grand Inga Project (AECOM)


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For 60 years, in spite of the potential of the site, all previous

schemes required considerable pre-investments in large civil

works, making the first MW expensive.

It was found that the minimum economically feasible size was

7000 MW.

In 2011, Aecom-EDF was mandated by SNEL, with the funding ofADB, to optimize the Grand Inga site, considering the proposed

Inga 3 project.

Grand Inga Too big to be constructed ?


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A new approach has been proposed, making the development ofthe Grand Inga economically feasible in the very short term:

Innovative, flexible and economical staging identified

Each phase as small as 2,000 MW at competitive costs

Phase size can be adjusted to adapt to planned demand and

export opportunities

Grand Inga 2013 Feasibility Study : Main Results


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Inga 3 replaced by a simpler Grand Inga first phase at low head

with no closure of the Congo River and no tunnels, using an

open channel

Integrating the final development of Grand Inga when river

dam is built in the future

Turbine-generators designed to operate at low and high

head

Bundi Dam and intake structures designed to be raised in

the future

Grand Inga 2013 Feasibility Study : Main Results


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Site IngaDbit module: 41,000 m3/s

Chute = 100 m

Inga 1 (350 MW)

Inga 2 (1 424 MW)


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Inga 3 basse chutecanal de transfert

barrage de la BundiCentrale Inga 3

P max : 4800 MW

Q max : 6600 m3/s


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Inga 3 basse chuteremplissage du rservoir

Niveau deau amont : 145 - 170m


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Inga 3 haute chuteBarrage sur le fleuve Congovacuateurs de crues

Rehaussement du barrage Bundichute +50%

Pas de nouvelle centraleP Inga 3 HC : jusqu 7800 MW


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Inga 3 haute chuteRemplissage du rservoirNiveau deau amont : 202 205 m


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Inga 3


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Inga 3 et 4


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Inga 3, 4 and 5


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Inga 3, 4, 5 et 6


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Inga 7


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Inga 3 8


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Inga 3 basse chute

canal detransfert @6,600 m3/s

barrageBundi

Centrale @ 4,800 MW


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Progressive Development of Grand Inga


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Grand Inga New, small, economical multi-stage

development scheme

Main benefits:

To finally and rapidly start Grand Inga development

Flexibility to adapt to DRC and export demand patterns

Provide optimized generation costs at each stage by levelling

investments over time

Allow multiple public / private operators to share the site


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INGA 3-LH: IMPACTSON LAND USE

Very low footprint on land:


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INGA 3-LH

Occupied Hectares /MW

Numberofinhabitantsto

relocate/MW


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INGA 3-LH: EIES CONCLUSIONS

Site specific initial conditions very favourable

Hydrology greater than the needs Negative Impacts identified are of low

intensity and manageable

Potential Social and Economic Positive Impacts

etude de faisabilité INGA aecom

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