Cahora Bassa and Its Legacies in Mozambique, 1965–2007
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Hydrobiological Assessment of the Zambezi River System: a Review
WORKING PAPER HYDROBIOLOGICAL ASSESSMENT OF THE ZAMBEZI RWER SYSTEM: A REVIEW September 1988 W P-88-089 lnlernai~onallnsl~iule for Appl~rdSysiems Analysis HYDROBIOLOGICAL ASSESSMENT OF THE ZAMBEZI RIVER SYSTEM: A REVIEW September 1988 W P-88-089 Working Papers are interim reports on work of the International Institute for Applied Systems Analysis and have received only limited review. Views or opinions expressed herein do not necessarily represent those of the Institute or of its National Member Organizations. INTERNATIONAL INSTITUTE FOR APPLIED SYSTEMS ANALYSIS A-2361 Laxenburg, Austria One of the Lmporhnt Projects within the Environment Program is that entitled: De- *on apport *stems jbr Mancrgfnq Lurge Intemartiorrcrl Rivers. Funded by the Ford Foundation, UNEP, and CNRS France, the Project includes two case stu- dies focused on the Danube and the Zambezi river basins. The author of this report, Dr. G. Pinay, joined IIASA in February 1987 after completing his PhD at the Centre dSEmlogie des Ressources Renouvelables in Toulouse. Dr. Pinny was assigned the task of reviewing the published literature on water management issues in the Zambezi river basin, and related ecological ques- tions. At the outset, I thought that a literature review on the Zambezi river basin would be a rather slim report. I am therefore greatly impressed with this Working Paper, which includes a large number of references but more importantly, syn- thesizes the various studies and provides the scientific basis for investigating a very complex set of management issues. Dr. Pinay's review will be a basic refer- ence for further water management studies in the Zambezi river basin. -
An Analysis of Primary and Secondary Production in Lake Kariba in a Changing Climate
AN ANALYSIS OF PRIMARY AND SECONDARY PRODUCTION IN LAKE KARIBA IN A CHANGING CLIMATE MZIME R. NDEBELE-MURISA A thesis submitted in partial fulfillment of the requirements for the degree of Doctor Philosophiae in the Department of Biodiversity and Conservation Biology, University of the Western Cape Supervisor: Prof. Charles Musil Co-Supervisor: Prof. Lincoln Raitt May 2011 An analysis of primary and secondary production in Lake Kariba in a changing climate Mzime Regina Ndebele-Murisa KEYWORDS Climate warming Limnology Primary production Phytoplankton Zooplankton Kapenta production Lake Kariba i Abstract Title: An analysis of primary and secondary production in Lake Kariba in a changing climate M.R. Ndebele-Murisa PhD, Biodiversity and Conservation Biology Department, University of the Western Cape Analysis of temperature, rainfall and evaporation records over a 44-year period spanning the years 1964 to 2008 indicates changes in the climate around Lake Kariba. Mean annual temperatures have increased by approximately 1.5oC, and pan evaporation rates by about 25%, with rainfall having declined by an average of 27.1 mm since 1964 at an average rate of 6.3 mm per decade. At the same time, lake water temperatures, evaporation rates, and water loss from the lake have increased, which have adversely affected lake water levels, nutrient and thermal dynamics. The most prominent influence of the changing climate on Lake Kariba has been a reduction in the lake water levels, averaging 9.5 m over the past two decades. These are associated with increased warming, reduced rainfall and diminished water and therefore nutrient inflow into the lake. The warmer climate has increased temperatures in the upper layers of lake water, the epilimnion, by an overall average of 1.9°C between 1965 and 2009. -
High Voltage Direct Current Transmission – Proven Technology for Power Exchange
www.siemens.com/energy/hvdc High Voltage Direct Current Transmission – Proven Technology for Power Exchange Answers for energy. 2 Contents Chapter Theme Page 1 Why High Voltage Direct Current? 4 2 Main Types of HVDC Schemes 6 3 Converter Theory 8 4 Principle Arrangement of an HVDC Transmission Project 11 5 Main Components 14 5.1 Thyristor Valves 14 5.2 Converter Transformer 18 5.3 Smoothing Reactor 20 5.4 Harmonic Filters 22 5.4.1 AC Harmonic Filter 22 5.4.2 DC Harmonic Filter 25 5.4.3 Active Harmonic Filter 26 5.5 Surge Arrester 28 5.6 DC Transmission Circuit 31 5.6.1 DC Transmission Line 31 5.6.2 DC Cable 32 5.6.3 High Speed DC Switches 34 5.6.4 Earth Electrode 36 5.7 Control & Protection 38 6 System Studies, Digital Models, Design Specifications 45 7 Project Management 46 3 1 Why High Voltage Direct Current? 1.1 Highlights from the High Voltage Direct In 1941, the first contract for a commercial HVDC Current (HVDC) History system was signed in Germany: 60 MW were to be supplied to the city of Berlin via an underground The transmission and distribution of electrical energy cable of 115 km length. The system with ±200 kV started with direct current. In 1882, a 50-km-long and 150 A was ready for energizing in 1945. It was 2-kV DC transmission line was built between Miesbach never put into operation. and Munich in Germany. At that time, conversion between reasonable consumer voltages and higher Since then, several large HVDC systems have been DC transmission voltages could only be realized by realized with mercury arc valves. -
Final Report for WWF
Intermediate Technology Consultants Ltd Final Report for WWF The Mphanda Nkuwa Dam project: Is it the best option for Mozambique’s energy needs? June 2004 WWF Mphanda Nkuwa Dam Final Report ITC Table of Contents 1 General Background.............................................................................................................................6 1.1 Mozambique .................................................................................................................................6 1.2 Energy and Poverty Statistics .....................................................................................................8 1.3 Poverty context in Mozambique .................................................................................................8 1.4 Energy and cross-sectoral linkages to poverty ........................................................................11 1.5 Mozambique Electricity Sector.................................................................................................12 2 Regional Electricity Market................................................................................................................16 2.1 Southern Africa Power Pool......................................................................................................16 3 Energy Needs.......................................................................................................................................19 3.1 Load Forecasts............................................................................................................................19 -
Second Technical Consultation on the Development and Management of the Fisheries of Lake Kariba
FAO Fisheries Report No. 766 SAFR/R766 (En) ISSN 0429-9337 Report of the SECOND TECHNICAL CONSULTATION ON THE DEVELOPMENT AND MANAGEMENT OF THE FISHERIES OF LAKE KARIBA Kariba, Zimbabwe, 30 November–1 December 2004 Copies of FAO publications can be requested from: Sales and Marketing Group Information Division FAO Viale delle Terme di Caracalla 00100 Rome, Italy E-mail: [email protected] Fax: (+39) 06 57053360 FAO Fisheries Report No. 766 SAFR/R766 (En) Report of the SECOND TECHNICAL CONSULTATION ON THE DEVELOPMENT AND MANAGEMENT OF THE FISHERIES OF LAKE KARIBA Kariba, Zimbabwe, 30 November–1 December 2004 FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS Rome, 2005 The designations employed and the presentation of material in this information product do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal or development status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries ISBN 92-5-105367-7 All rights reserved. Reproduction and dissemination of material in this information product for educational or other non-commercial purposes are authorized without any prior written permission from the copyright holders provided the source is fully acknowledged. Reproduction of material in this information product for resale or other commercial purposes is prohibited without written permission of the copyright holders. Applications for such permission should be addressed to the Chief, Publishing Management Service, Information Division, FAO, Viale delle Terme di Caracalla, 00100 Rome, Italy or by e-mail to [email protected] © FAO 2005 iii PREPARATION OF THIS DOCUMENT This is the report adopted on 1 December 2004 in Kariba, Zimbabwe, by the second Technical Consultation on the Development and Management of the Fisheries of Lake Kariba. -
Cahora Bassa North Bank Hydropower Project
Hydropower Sustainability Assessment Protocol: Cahora Bassa North Bank Hydropower Project Cahora Bassa North Bank Hydropower Project Public Disclosure Authorized Hidroeléctrica de Cahora Bassa Public Disclosure Authorized Zambezi River Basin Introduction The hydropower resources of the Zambezi River Basin are central to sustaining economic development and prosperity across southern Africa. The combined GDP among the riparian states is estimated at over US$100 billion. With recognition of the importance of shared prosperity and increasing commitments toward regional integration, there is significant potential for collective development of the region’s rich natural endowments. Despite this increasing prosperity, Contents however, poverty is persistent across the basin and coefficients of inequality for some of the riparian states are among the highest in Introduction .......................................................................................... 1 the world. Public Disclosure Authorized The Hydropower Sustainability Assessment Protocol ......................... 4 Reflecting the dual nature of the regional economy, new investments The Project ............................................................................................ 3 in large infrastructure co-exist alongside a parallel, subsistence economy that is reliant upon environmental services provided by the The Process ........................................................................................... 8 river. Appropriate measures are therefore needed to balance -
Press Release HCB ANNOUNCES the IPO of up to 7.5% of ITS SHARES on the MOZAMBICAN STOCK EXCHANGE
Press Release HCB ANNOUNCES THE IPO OF UP TO 7.5% OF ITS SHARES ON THE MOZAMBICAN STOCK EXCHANGE • HCB is the concessionaire of the largest hydroelectric power plant in southern Africa, located in Songo, Northern Mozambique • Listing planned for July 2019 with shares offered to Mozambican nationals, companies and institutional investors at 3 Meticais per share • Vision of reach and inclusion to be achieved through innovative nationwide multibank distribution channels, mobile app and USSD platform Maputo, 21 May 2019 Hidroeléctrica de Cahora Bassa (HCB), the Mozambican concessionaire of the Cahora Bassa hydroelectric plant, the largest in southern Africa, yesterday launched its Initial Public Offer (IPO) for up to 7.5% of its shares to individual Mozambicans, national companies and institutional investors. The IPO will see a first tranche of 2.5% of its shares becoming available on the Mozambican stock exchange - Bolsa de Valores de Moçambique (“BVM”). HCB shares will be sold at 3 Meticais each with the subscription period taking place between 17 June and 12 July 2019. Nationwide roadshows and innovative channels have been created to ensure maximum reach and inclusion. Individuals will be able to place purchase orders through various Mozambican banks’ branch networks but also through a USSD mobile application, a mobile app and via internet banking. The Consortium BCI-BiG (BCI and BIG are two Mozambican banks), are the global coordinators for this IPO with other financial institutions supporting the placement of the shares through their branch networks. Maputo Office Head Office: Edifício JAT I – Av. 25 de Setembro, 420 – 6th Floor PO Box – 263 – Songo PO Box: 4120 PBX: +258 252 82221/4 | Fax: +258 252 82220 PBX: +258 21 350700| Fax: +258 21 314147 Pág. -
Mozambique Case Study Example1
Mozambique Case study example1 - Principle 1: The Zambezi River Basin - "dialogue for building a common vision" The Zambezi River Basin encompasses some 1.300 km2 throughout the Southern African Development Community (SADC) region, including a dense network of tributaries and associated wetland systems in eight countries (Angola, Namibia, Botswana, Zimbabwe, Zambia, Malawi, Tanzania, Mozambique). The livelihoods of approximately 26 million people are directly dependent on this basin, deriving benefits from its water, hydro-electric power, irrigation developments, fisheries and great wealth of related natural resources, including grazing areas, wildlife, and tourism. Over the past forty years, however, the communities and ecosystems of the lower Zambezi have been constraint by the management of large upstream dams. The toll is particularly high on Mozambique, as it the last country on the journey of the Zambezi; Mozambicans have to live with the consequences of upriver management. By eliminating natural flooding and greatly increasing dry season flows in the lower Zambezi, Kariba Dam (completed in 1959) and especially Cahora Bassa Dam (completed in 1974) cause great hardship for hundreds of thousands of Mozambican villagers whose livelihoods depend on the ebb and flow of the Zambezi River. Although these hydropower dams generate important revenues and support development however, at the expense of other resource users. Subsistence fishing, farming, and livestock grazing activities have collapsed with the loss of the annual flood. The productivity of the prawn fishery has declined by $10 - 20 million per year -- this in a country that ranks as one of the world’s poorest nations (per capita income in 2000 was USD230). -
IN Lake KARIBA ~As Development Ad Ndon)
• View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Aquatic Commons THE A leA JOU L OF (Afr. J Trop. Hydrobiol. Fish) Yo. 1 1994 ASPECTS OF THE BIOLOGY OF THE lAKE TANGANYIKA SARDINE, LIMNOTHRISSA n illustrated key to the flinji. (Mimeographed MIODON (BOULENGER), IN lAKE KARIBA ~as Development Ad ndon). R. HUDDART ision des Synodontis Kariba Research Unit, Private Bag 24 CX, CHOMA, Zambia. e Royal de I'Afrique 'en, Belgium. 500p. Present address:- ~). The ecology of the 4, Ingleside Grove, LONDON, S.B.3., U.K. is (Pisces; Siluoidea) Nigeria. (Unpublished ABSTRACT o the University of Juveniles of U11lnothrissa 11liodon (Boulenger) were introduced into the man-made Lake Kariba in ngland). 1967-1968. Thirty months of night-fishing for this species from Sinazongwe, near the centre of the Kariba North bank. from 1971 to 1974 are described. Biological studies were carried out on samples of the catch during most of these months. Limnological studies were carried out over a period of four months in 1973. Li11lnothrissa is breeding successfully and its number have greatly increased. [t has reached an equilibrium level of population size at a [ower density than that of Lake Tanganyika sardines, but nevertheless is an important factor in the ecology of Lake Kariba. The growth rate, size at maturity and maximum size are all less than those of Lake Tanganyika Li11lnothrissa. A marked disruption in the orderly progression of length frequency modes occurs in September, for which the present body of evidence cannot supply an explanation. INTRODUCTION light-attracted sardines in Lake Kariba were The absence of a specialised, plankti tested in 1970 and early 1971. -
Thezambiazimbabwesadc Fisheriesprojectonlakekariba: Reportfroma Studytnp
279 TheZambiaZimbabweSADC FisheriesProjectonLakeKariba: Reportfroma studytnp •TrygveHesthagen OddTerjeSandlund Tor.FredrikNæsje TheZambia-ZimbabweSADC FisheriesProjectonLakeKariba: Reportfrom a studytrip Trygve Hesthagen Odd Terje Sandlund Tor FredrikNæsje NORSKINSTITI= FORNATURFORSKNNG O Norwegian institute for nature research (NINA) 2010 http://www.nina.no Please contact NINA, NO-7485 TRONDHEIM, NORWAY for reproduction of tables, figures and other illustrations in this report. nina oppdragsmelding279 Hesthagen,T., Sandlund, O.T. & Næsje, T.F. 1994. NINAs publikasjoner The Zambia-Zimbabwe SADC fisheries project on Lake Kariba: Report from a study trip. NINA NINA utgirfem ulikefaste publikasjoner: Oppdragsmelding279:1 17. NINA Forskningsrapport Her publiseresresultater av NINAs eget forskning- sarbeid, i den hensiktå spre forskningsresultaterfra institusjonen til et større publikum. Forsknings- rapporter utgis som et alternativ til internasjonal Trondheimapril 1994 publisering, der tidsaspekt, materialets art, målgruppem.m. gjør dette nødvendig. ISSN 0802-4103 ISBN 82-426-0471-1 NINA Utredning Serien omfatter problemoversikter,kartlegging av kunnskapsnivået innen et emne, litteraturstudier, sammenstillingav andres materiale og annet som ikke primært er et resultat av NINAs egen Rettighetshaver0: forskningsaktivitet. NINA Norskinstituttfornaturforskning NINA Oppdragsmelding Publikasjonenkansiteresfritt med kildeangivelse Dette er det minimum av rapporteringsomNINA gir til oppdragsgiver etter fullført forsknings- eller utredningsprosjekt.Opplageter -
Floods ' South Af Rican Talks Fol Low on March 16, 1984, Mozambique and Dock and Rail Use, and Tourism
Number 3 April-June 1984 In This Issue ' The Mozambican - Floods ' South Af rican Talks Fol low On March 16, 1984, Mozambique and dock and rail use, and tourism . Drought South Africa signed a non-agression In this issue we try to answer some agreement which, if respected by both of the questions about how and why The worst drought in Mozambique's sides, would prevent either country talks between Mozambique and South recent history—lasting almost four from being used as a base for launch- African came about and to present years—has now been followed by one ing military actions against the other . documents and articles which explain of the worst floods of all time . Floods The Nkomati Agreement, as it is also what Mozambique's position has been which overran southern Mozambique known, was signed in a ceremony near in relation to these talks . To accom- at the end of January caused 109 the Nkomati River which borders both modate the material to do this, we deaths, dozens of disappearances and countries. The signing of the security have suspended from this issue some the loss of homes for over 49,000 peo- agreement was preceded by weeks of newsletter departments, which will pie. In addition, 350,000 people lost intense discussions between the two reappear in the next issue . their family farming plots. countries and immediately became Other articles of special interest in- The first floods came after 22 hours the subject of discussions and elude a report of SADCC talks by of continuous rainfall accompanied by speculations worldwide . -
Electrifying Colonial Africa: Portuguese Developments
Major technological networks and sovereignty Electrifying colonial Africa: Portuguese developments Ana Paula SILVA ABSTRACT The electrification of Portuguese African colonies was a long-term process beginning in the late nineteenth century. Interestingly, it was boosted by a late effort of Portuguese colonialism after World War II, in the international context of the ‘second colonial occupation’, following the example of other European colonial powers. But it faced both international censure and the pressure of liberation movements such as the Marxist “Frelimo” breaking through in Angola, Guinea, and Mozambique in the early 1960s. Le barrage de Cabora-Bassa, au Mozambique. Source : Climate and development knowledge network. Portugal built electricity generation facilities in Africa from the late 1890s until 1976, two years after its retreat from the continent. Indeed, the military insurgency (1974) that removed the dictatorship and paved the way for democracy and decolonization did not prevent the completion of works under construction. The electrification of Portuguese colonies (Cape Verde, Guinea-Bissau, Sao Tome and Principe, Angola, and Mozambique) began with isolated, small-scale generators supplying farms/plantations, industries, and municipalities with lighting, promoted by colonial administrators and private entities. After World War II (WW II), the process changed completely. In the aftermath of WW II, Europe recovered on the basis of overseas territories development, for which the Marshall Plan allocated funds. Also driven by the urgency to promote the progress of indigenous peoples and the need to plan public investment, this economic development was carried out through the adoption of systematic plans: France drew up plans for its overseas territories in 1946, Belgium for Congo in 1948, Italy for Somalia in 1954, and Britain for several territories at different dates.