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S N E L , THE STATE POWER UTILITY OF THE DRC PRESENT. n e l. DEMOCRATIC REPUBLIC OF CONGO. SOCIETE NATIONALE D’ELECTRICITE. INGA : PROJECTS OF EXISTING INFRASTRUCTURES REHABILITATION AND DEVELOPMENT OF THE SITE presentation at the « African Utility Week »

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  1. S N E L , THE STATE POWER UTILITY OF THE DRC PRESENT n e l DEMOCRATIC REPUBLIC OF CONGO SOCIETE NATIONALE D’ELECTRICITE INGA : PROJECTS OF EXISTING INFRASTRUCTURES REHABILITATION AND DEVELOPMENT OF THE SITE presentation at the « African Utility Week » Cape Town , 16 – 19 May 2005

  2. SUMMARY 1. GENERALITIES 1.1 DRC Hydro Sites and Potential 1.x Location / Characteristics of the Inga site 1.x Development Scheme / Existing and Planning Power Stations 2. CURRENT SITUATION 2.1 Introduction 2.2 Common facilities for the two existing power stations 2.3 Electroméchanical Equipments 3. AIMED OBJECTIVES 3.1 Short , Medium and Long term Objectives 4. ACTIONS TO BE UNDERTAKEN 4.x Short , Medium and Long term Actions

  3. 1 GENERALITIES

  4. DRC HYDRO SITES AND POTENTIAL Bosobolo Mobayi Ango Zongo Bondo Faradje Niangara Gbadolite M’zoro Dingila Libenge Gemena Businga Rungu Bambesa Aru Buta Poko Watsa Isiro Budjala Kungu Lepudungu Aketi Bumba Bumba Lisala Mahagi Wamba Djugu Nepoko Soleniama Legend Bomongo Mambasa Banalia Bunia Irumu Basoko Bongandanga Yahuma Bengamisa Yangambi Budana Bafwasende Babeba Basankusu Bolomba Isangi Djolu Beni Tshopo Equator Wagenia Befale Semliki Kisangani Kisalala Wanie-Rukula Existing 220 kV transmission line Mbandaka Butembo Boende Ruki Existing 110 - 132 kV transmission line Ingende Bokungu Ubundu Mugombe Opala Line in project Bikoro Rutshuru Ikela HVDC Inga - Kolwezi Kiri Goma Monkoto Existing hydro power plant Kalehe Inongo Inongo Inongo Lulingu Kabare Hydro power plant in project Bukavu Moga Ruzizi Kutu Walungu Existing thermal power plant Shabunda Shabunda Mushie Mwenga Kindu Katako- Mungombe Pangi Dekese Kombe Lodja Bandundu Uvira Kamimbi Oshwe Bagata Kampene Kole Mangembe Kibombo Ilebo Kasongo Kinshasa Masi- Bulungu Fizi manimba Lubefu Lusambo Luozi Tshela Zongo Kikwit Kenge Mweka Seke- Luebo Idiofa Sanga Banza Kongolo Lubao Kitona Kyimbi Demba Lukula Mbanza- Kakobola Dimbelenge Inga Bamba Gungu Ngungu Mpozo Kananga Kimvula Popokabaka Mbuji Mayi Moanda Boma Kabinda Matadi Kalemie Kabalo Nyunzu Tshala Kasanza Feshi Katende Tshikapa Mani Lubilanji Kasongo- Kazumba Lungudi Lunda Manono Luiza Moba Kabongo Mwene- Ditu Kahemba Kaniama Tembo Malemba- Nkulu Piana Mwanga Kilubi Kapanga Hydro potential : 100.000 MW OF WHICH Kamina Mitwaba Bukama Sandoa • 56.000 MW at different sites spread all over the country ; Kasenga Nseke Nzilo Kilometers M´sha Koni 0 100 200 300 400 500 Dilolo Kolwezi Likasi • 44.000 MW concentrated at the Inga site. Lubumbashi Kipushi Sakania

  5. INGA SITE LOCATION IN THE DEMOCRATIC REPUBLIC OF CONGO * 150 km UPSTREAM BEFORE THE MOUTH OF THE CONGO RIVER * 225 km DOWNSTREAM FROM KINSHASA Kinshasa Tshela 225 km INGA 15O km Mbanza-Ngungu Matadi Moanda OCEAN ATLANTIQUE Boma

  6. INGA SITE CHARACTERISTICS • EXCEPTIONNALLY REGULAR RIVER FLOW CONGO RIVER BASIN Equator - On either side of the Equator - Basin Surface : 3.800.000 km2 Congo River - DRC Surface : 2.345.000 km2

  7. INGA SITE CHARACTERISTICS • SIGNIFICANT RIVER FLOW 60 000 50 000 40 000 AVERAGERIVER FLOW (m3/s) 30 000 20 000 10 000 0 J F M A M J J A S O N D MONTH Historical Min (1905) : 21.400 m3/s Inter-annual Module 40.000 m3/s Historical Max (1961) : 83.400 m3/s

  8. INGA SITE CHARACTERISTICS • SIGNIFICANT NATURAL • SLOPE • 102 m on a straight • distance of 15 km only INGA SITE GENERAL VIEW SIKILA Island N O E 15 km S • APPROPRIATE • TOPOGRAPHY • FOR A PROGRESSIVE • EQUIPMENT OF THE • SITE BUNDI River

  9. INGA SITE CHARACTERISTICS • LOW GENERATION • COSTS POTENTIAL OF SITE ± 44.000 MW  Installed kW : 671 à 339 USD/kW 320 TWh/year  Produced Energy : 1,44 à 1,08 USc/kWh WILD ENERGY WASTED MOST POWERFUL HYDRO-POWER IN THE WORLD Before : INGA = - «Three Gorges» (China) : 18.000 MW - «Itaipu» (Brazil/Paraguay) : 12.000 MW •

  10. DEVELOPMENT SCHEME MAIN WORKS Dam the River Evacuators Restitution Channels Water intake Channels Matamba Dam Bundi Dam Inga I Inga II Inga III Grand Inga

  11. EXISTING POWER STATIONS INGA I INGA II INGA I Commissioned in Water head (m) Turbine Water flow(m3/s) Number of units Installed Capacity (MW) Production (TWh/an) 1972 50 780 6 351 2,4 1982 58 2.800 8 1.424 10,4 INGA II

  12. PLANNED POWER STATIONS INGA 3 INGA III Gd INGA Water head (m) Turbine Water flow (m3/s) Number of units Installed Capacity (MW) Production (TWh/an) 60 6.300 16 3.500 23,5 150 26.400 52 39.000 288,0 GRAND INGA

  13. 2 CURRENT SITUATION OF EXISTING INSTALLATIONS

  14. CURRENT SITUATION Water Highest Level 156 INTRODUCTION : 145,7 Water Lowest Level 146 DUE TO : Originally Planned Treshold Level - 142,5 140 • THE PRESENCE OF A MOUNTING ROCK AT THE WATER INTAKE ; Bottom of Channel Medium Level – Profile 100 , 200 et 300 125 • AN IMPORTANT SAND DEPOSIT IN THE INTAKE CHANNEL; • SEVERAL DESIGN AND IMPLEMENTATION FAULTS.

  15. CURRENT SITUATION CONSEQUENCES : • Total capacity now limited to 1.124 MW instead of 1.775 MW • Total capacity with the lowest water level : 600 MW • Unrelliable plants for power generation 1. COMMON FACILITIES A. CIVIL WORKS : • WEAK WATER FLOW IN THE INTAKE CHANNEL; • DAMS OF THE TWO POWER PLANTS TEND TO MOVE DOWNSTREAM; • WATER DRAINING SYSTEM FOR THE TWO DAMS AND FOR INGA 2 POWER PLANT NOT OPERATIONNAL ; • DESTRUCTION OF CIVIL WORKS (Protection dike, Coffer-dam) • DEPRECIATION OF THE POWER PLANT BUILDINGS.

  16. CURRENT SITUATION 1. COMMON FACILITIES (cont’d) B. HV SWITCHYARD STATION : • DEFAULTING PROTECTION EQUIPMENTS (circuit-brakers , relays) C. GENERAL SERVICES : • FAILURE OF SEVERAL EQUIPMENTS ( Water exhaust system , fire protection, lifts, air-conditionning, .. . ) D. LOGISTICS : • INSUFFICIENT MEASUREMENT EQUIPMENTS , TOOLS AND SPARE PARTS FOR CURRENT OPERATIONS ; • LACK OF MEANS FOR MODERN MANAGEMENT ( Computers , ....) ; • ETC. ..

  17. CURRENT SITUATION 2. CURENT SITUATION OF THE POWER STATIONS ELECTROMECHANICAL EQUIPMENTS : A. INGA 1 POWER PLANT : • REDUCED AVAILABLE CAPACITY ( 2 Units not operating out of 6) ; • TURBINES SERIOUSLY DAMAGED BY CAVITATION ; • DESIGN FAULTS ON CERTAIN EQUIPMENTS . B. INGA 2 POWER PLANT : • REDUCED AVAILABLE CAPACITY ( 5 Units not operational out of 8) ; • DESIGN FAULTS ON CERTAIN EQUIPMENTS ( speed regulator , aspirators protection , …) ; • LACK OF REGULAR MAINTENANCE ON EQUIPMENT ( Duration for revision not respected , ..) ; • ETC. ..

  18. 3 AIMED OBJECTIVES

  19. GLOBAL OBJECTIVE : TO MEET THE INTERNAL AND EXTERNAL DEMAND , SPECIALLY THE DIMINUSHING OF CAPACITY IN THE SOUTHERN AFRICA REGION . • Short Term : partial rehabilitation of the two powerplants for a reliable generation of 1300 MW ; • Medium Term : full rehabilitation of the two powerplants for a reliable generation of the full capacity of 1775 MW ; • Long Term : construction of new powerplants (Inga 3 and Grand Inga) for the materialization of major african interconnectors Nothern Africa (Egypte) , Western Africa (Nigeria) , Southern Africa (RSA) .

  20. 4 ACTIONS TO BE UNDERTAKEN

  21. 4.1 SHORT TERM ACTIONS • PARTIAL REHABILITATION AND REFURBISHMENT OF UNITS OF THE TWO POWERPLANTS . • SAND DREDGING INSIDE THE INTAKE CHANNEL . • REPAIR DAMMAGED OR ACTUAL NON OPERATIONNAL EQUIPMENTS . • ETC. …

  22. 4.2 MEDIUM TERM ACTIONS • FULL REHABILITATION OF THE EXISTING INGA 1 ET INGA 2 POWERPLANTS • CONSTRUCTION OF NEW POWERPLANTS THROUGH THE PUBLIC_PRIVATE PARTNERSHIPS

  23. Société Nationale d’Électricité of DRC (SNEL) International Operator with Hydro Experience Rehabilitation Follow Up Steering Committee SNEL / SPV Joint Technical Committee Operation Follow Up Contracts Technical Assistance and/or Maintenance Long term (25 years min) 100% generation with obligatiion to supply the DRC Rehabilitation Contract Construction Contract Transit (Cost ++) Bankable International Entrepreneurs Project Company (SPV) x % For X / y % for Y Loan Agreement Bank Pool Garantees PPA (Cost +) Fair completion, Performance Price, etc. Clients Collection Account Reserve Account E.G. : A PARTNERSHIP STRUCTURE FOR THE IMPLEMENTATION OF THE INGA PARTIAL REHABILITATION PROJECT

  24. 4.2 LONG TERM ACTIONS POWER HIGHWAYS FROM THE INGA SITE PROJECT : • INGA 3 : WESTCOR Project • Grand Inga : EHV Lines to Northern, Western and Southern Africa (Egypt , Nigeria , RSA), etc. ….

  25. POWER HIGHWAYS FROM INGA SITE TUNISIE MAROC ALGERIE LIBYE EGYPTE SAHARA Occ. MAURITANIE MALI NIGER ERITREE SENEGAL TCHAD DJIBOUTI GAMBIE SOUDAN BURKINA FASO GUINEE-BISSAU GUINEE NIGERIA BENIN ETHIOPIE SIERRA LEONE COTE D’IVOIRE GHANA TOGO RCA LIBERIA SOMALIE CAMEROUN OUGANDA GUINEE EQU. KENYA SAO TOME & PRINCIPE GABON CONGO R. LEGEND REP. DEM. CONGO B. Interconnection Projects TANZANIA Northern Highway COMORES Northern Highway (alternative route) ANGOLA MALAWI Southern Highway (Eastern corridor) ZAMBIE Southern Highway (Western corridor) MOZAMBIQUE ZIMBABWE Western Highway MADAGASCAR BOTSWANA NAMIBIE Converter Sub-stations Existent Sub-stations Calabar INGA Planned Sub-stations SWAZILAND AFRIQUE DU SUD LESOTHO

  26. THANK YOU

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