batoka gorge hydroelectric project
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Batoka Gorge Hydroelectric Project SAPP Investment ConferenceTRANSCRIPT
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SAPP Investment Conference: Windhoek – September 2005
M. J. Tumbare,Zambezi River Authority
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�Corporate Structure of ZRA�Major Functions of ZRA�Highlights of ZRA Activities and
Achievements.�Project Opportunities on Common
Zambezi River.�Batoka Hydro Electric Project.�Conclusion.
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� Council of Ministers of ZRA (the Council)� Board of Directors (the Board)� Chief Executive� Heads of Departments.
� Director – Projects and Dam Safety.� Director – Environment and Water
Resources Management.� Director – Finance/Corporate Secretary.
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.
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�Developed a Water Purchase Agreement with ZESA and ZESCO for hydropower generation .
�Developed a good track record for the maintenance & operation of the third largest person- made reservoir in the world.
�Experience in managing relationships between two governments in developing & sharing of water resources.
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�Carried out pre-feasibility studies for potential dam sites on the common Zambezi River.
�Developed a priority sequencing of the development of hydro-electric projects on the common Zambezi.
�Completed feasibility studies for the Batoka Hydro-electric project.
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295Regulation Dam Katombora
2 0401 085Mupata Gorge
440390Victoria Falls South
1 4501 200Devils Gorge
2 5001 600Batoka Gorge
Estimated Project Costs. (Million US $)
Installed Capacity (MW)
SCHEME
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SCHEME RATIO: (O&M)/(INST.CAP) (US$/MW)
AVERAGE SPECIFIC GENERATION COSTS (USc/kWh)
Batoka Gorge 5 700 1.78
Devil’s Gorge 7 000 1.93
Victoria Falls South
6 400 2.10
Mupata Gorge 8 600 2.02
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� In 1992, ZRA Commissioned the Batoka Joint Venture Consultants (BJVC) to carry out a feasibility study for the Batoka HES.
� BJVC was a consortium comprising, Knight Piesold of UK, Lahmeyer International and Electrowatt of Germany.
� Their findings are that a Roller Compacted Concrete Gravity Arch dam with two underground power stations of 1 600 MW total installed capacity, is the optimal project sizing for the site.
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�Batoka Dam principal data:�Catchment Area – 508 000 km2
�Reservoir Surface Area – 25.6 km2
�Capacity – 1.680 X 109 m3
�Dam Type – RCC Gravity Arch Dam.�Height – 181 m.�Spillway Type – Crest Overflow with 12
Radial Gates.
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� Power Stations:� Two Underground Power Caverns (one North
and one South)� Installed Capacity – 1600 MW (2X 800MW)� Generation Efficiency – 86%.
� Other Infrastructure:� Transmission Lines � Access Roads and Housing.� Social Amenities.
� Total Project Costs – US$ 2 500 Million.
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� Other key activities carried out.� A comprehensive EIA and SIA carried out
(1993 &1998).� Project presented to financiers such as ADB
who have expressed an interest to finance the next phase of final engineering designs with Tender Documents.
� With the ZESA and ZESCO Power Station extensions at Kariba, the Batoka Project becomes more critical for the conjunctive operation of the two dams which increases firm capacity at Kariba.
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�The Project Development plan has been updated (2005).The Batoka project cycle is seven (7) years.
�ZRA has consulted with its key stakeholders including ZESA, ZESCO & SAPP.
�ZRA is developing a project strategy and SPV which ensures that this project can be financed.
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Batoka Project Partners and Structure
ZRA UtilitiesZESA/ZESCO
Investors
Batoka HydroElectric Company
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�The Batoka Hydro-Electric Company will be the SPV for the Project.
�ZRA has set up a Project Development Executive Team to manage the Project’s facilitation prior to the setting up of the SPV.
�Other Investors will be invited to take part in the project.
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� The Batoka project is one of the most attractive projects in the region.
� It is ideally suited for providing peaking power.
� It is strategically located close to the SAPP markets.
� A lot of ground work has already been done.� The commencement time for Batoka Project
is short.
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� Conjunctive operation of Batoka with existing system adds US$160.3 million annually in earnings in excess of that realised by non-conjunctive operation.
� CO2 emission savings amounting to 9 milliontonnes/year can be credited to the BatokaProject if constructed.
� Batoka Project has an EIRR of 10.2% (10-12%),a B/C ratio of 1.21 (>1.0) and an FIRR of 17%.
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� ZRA has consulted widely with its key stakeholders in Zimbabwe and Zambia.
� ZRA also has several other attractive projects to offer on the Zambezi.
� The Batoka project cycle is seven (7) years.� ZRA is there as a partner to make the
Zambezi water resources a key contributor to the regional hydropower needs.
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