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Engineering Geology of Randenigala Hydro Power Project Site
ENGINEERING GEOLOGY OF RANDENIGALA HYDRO POWER PROJECT SITE by A.U. Gunasekera SYNOPSIS Geotechnical investigations for a hydropower project are conducted in stages, in order to establish the engi neering geological conditions, which invariably here a direct impact on the selection of locations of structures, methods of foundation treatment/stablisation and con struction of foundations/substructures etc. Hence, it is of utmost significance to perform a very comprehen sive engineering geological study, for such projects, as it will also, in addition to the above mentioned facts af fect the economic feasibility of the project. This paper shows how geotechnical investigations were conducted for the Randenigala Hydro Power Project, Figure 1 - Map of Figure 2 - Randenigala including the different types of methods utilized along Sri Lanka Project Area with their purpose. The paper discusses the relevant regional geological The project consists of a hundred and two metre high aspects in a certain but limited detailness and conse rockfill dam with a clay core, chute spillway (maximum quently elaborates mainly on the engineering geologi capacity 8085 m3/s), power house (installed capacity - cal conditions prevailing at Randenigala Project Site, 120 MW), power intake with steel lined power tunnel, indicating their effects on the dam foundation (shell area irrigation outlet and other pertinent structures. and core trench) excavation, surface preparation prior At the very inception geological mapping of the reser to fill placement and slope stability. voir area (scale 1:25000) and the dam site (scale 1:1000) was carried out along with an aerial photographic study. 1. INTRODUCTION 2. ENGINEERING GEOLOGICAL Randenigala Hydro Power Project Site is located in the valley of river Mahaweli between Victoria Dam and INVESTIGATIONS Minipe anicut (about 5,4 km upstream of Minipe anicut) The engineering geological investigations carried out about 35km South East of Kandy. -
The Government of the Democratic
THE GOVERNMENT OF THE DEMOCRATIC SOCIALIST REPUBLIC OF SRI LANKA FINANCIAL STATEMENTS OF THE GOVERNMENT FOR THE YEAR ENDED 31ST DECEMBER 2019 DEPARTMENT OF STATE ACCOUNTS GENERAL TREASURY COLOMBO-01 TABLE OF CONTENTS Page No. 1. Note to Readers 1 2. Statement of Responsibility 2 3. Statement of Financial Performance for the Year ended 31st December 2019 3 4. Statement of Financial Position as at 31st December 2019 4 5. Statement of Cash Flow for the Year ended 31st December 2019 5 6. Statement of Changes in Net Assets / Equity for the Year ended 31st December 2019 6 7. Current Year Actual vs Budget 7 8. Significant Accounting Policies 8-12 9. Time of Recording and Measurement for Presenting the Financial Statements of Republic 13-14 Notes 10. Note 1-10 - Notes to the Financial Statements 15-19 11. Note 11 - Foreign Borrowings 20-26 12. Note 12 - Foreign Grants 27-28 13. Note 13 - Domestic Non-Bank Borrowings 29 14. Note 14 - Domestic Debt Repayment 29 15. Note 15 - Recoveries from On-Lending 29 16. Note 16 - Statement of Non-Financial Assets 30-37 17. Note 17 - Advances to Public Officers 38 18. Note 18 - Advances to Government Departments 38 19. Note 19 - Membership Fees Paid 38 20. Note 20 - On-Lending 39-40 21. Note 21 (Note 21.1-21.5) - Capital Contribution/Shareholding in the Commercial Public Corporations/State Owned Companies/Plantation Companies/ Development Bank (8568/8548) 41-46 22. Note 22 - Rent and Work Advance Account 47-51 23. Note 23 - Consolidated Fund 52 24. Note 24 - Foreign Loan Revolving Funds 52 25. -
Study of Hydropower Optimization in Sri Lanka
JAPAN INTERNATIONAL COOPERATION AGENCY CEYLON ELECTRICITY BOARD(CEB) DEMOCRATIC SOCIALIST REPUBLIC OF SRI LANKA STUDY OF HYDROPOWER OPTIMIZATION IN SRI LANKA FINAL REPORT SUMMARY FEBRUARY 2004 ELECTRIC POWER DEVELOPMENT CO., LTD. NIPPON KOEI CO., LTD. TOKYO, JAPAN The Main Dam Site (looking downstream) The Kehelgamu Oya Weir Site (looking upstream) The Powerhouse Site (looking from the right bank) The Study of Hydropower Optimization in Sri Lanka CONTENTS CONCLUSION AND RECOMMENDATION .............................................................. CR - 1 Conclusion .................................................................................................................. CR - 1 Recommendation ......................................................................................................... CR - 5 PART I GENERAL 1. INTRODUCTION .................................................................................................... 1 - 1 2. GENERAL FEATURES OF SRI LANKA ............................................................... 2 - 1 2.1 Topography ....................................................................................................... 2 - 1 2.2 Climate ............................................................................................................. 2 - 1 2.3 Government ....................................................................................................... 2 - 2 3. SOCIO-ECONOMY ................................................................................................. 3 - 1 -
Watawala Carolina Tea Factory
Watawala MAP OF WATAWALA AND AROUND Carolina Tea Factory - Watawala TP - 94 (0) 11 4702400 . Carolina Tea Company of Ceylon Ltd. Incorporated in 1892 is one of the pioneer tea companies in the country, set up primarily to plant tea. It consisted of a group of plantations situated in Lower Dickoya. They were Agarawatte, Carolina, Kandawella, Mount Jean, Wigton, Udeapola Group, Trafalgar, Goarfell and St.Margaret Estates.The Management of this group that was originally with Leechman and Company changed to Mackwoods Estates & Agencies Ltd. at a later date. According to the times of Ceylon Green Book of 1939, this group had over 1,000 hectares in tea, 245 hectares in rubber, a few hundred coconut trees, and 726 hectares uncultivated, comprising a total extent at the stage was considered a substantial area for administration. The Carolina tea factory was one of the original "central factories" constructed by the river that ran by the estate, to avail themselves of water power. It was indeed an improvement to some of other factories of the day, with no mud floors and cadjan roofs. The building was of wood assembled firmly on stone pillars. It had three floors going up to the height of 42 feet from ground to ridge. Provision had been made for further expansion, but there was sufficient space to accommodate all the leaf not only from that group, but from many other adjoining plantations who were satisfied with a return of 9 cents (about 2p) per pound. The novelty was that very often than not, the green leaf arrived by train. -
CEB Long Term Generating Expansion Plan 2015-2034
CEYLON ELECTRICITY BOARD LONG TERM GENERATION EXPANSION PLAN 2015-2034 Transmission and Generation Planning Branch Transmission Division Ceylon Electricity Board Sri Lanka July 2015 CEYLON ELECTRICITY BOARD LONG TERM GENERATION EXPANSION PLAN 2015-2034 Transmission and Generation Planning Branch Transmission Division Ceylon Electricity Board Sri Lanka July 2015 Long Term Generation Expansion Planning Studies 2015- 2034 Compiled and prepared by The Generation Planning Unit Transmission and Generation Planning Branch Ceylon Electricity Board, Sri Lanka Long-term generation expansion planning studies are carried out every two years by the Transmission & Generation Planning Branch of the Ceylon Electricity Board, Sri Lanka and this report is a bi- annual publication based on the results of the latest expansion planning studies. The data used in this study and the results of the study, which are published in this report, are intended purely for this purpose. Price Rs. 3000.00 © Ceylon Electricity Board, Sri Lanka, 2015 Note: Extracts from this book should not be reproduced without the approval of General Manager – CEB Foreword The ‘Report on Long Term Generation Expansion Planning Studies 2015-2034’, presents the results of the latest expansion planning studies conducted by the Transmission and Generation Planning Branch of the Ceylon Electricity Board for the planning period 2015- 2034, and replaces the last of these reports prepared in April 2014. This report, gives a comprehensive view of the existing generating system, future electricity demand and future power generation options in addition to the expansion study results. The latest available data were used in the study. The Planning Team wishes to express their gratitude to all those who have assisted in preparing the report. -
Natural Resource Profile of the Kelani River Basin January 2016
Medium to Long-term Multi-Stakeholder Strategy and Action Plan for Management and Conservation of the Kelani River Basin 2016-2020 Natural Resource Profile of the Kelani River Basin January 2016 This natural resource profile is developed to support the formulation of the “Medium to Long-term Multi-Stakeholder Strategy and Action Plan for Management and Conservation of the Kelani River Basin” developed by the Central Environment Authority (CEA) and International Union for the Conservation of Nature (IUCN) Sri Lanka Country Office, with the participation of a large number of stakeholder groups and technical inputs from the Ministry of City Planning and Water Supply and the United Nations Children’s Fund (UNICEF). Natural Resource Profile of the Kelani River Basin Acknowledgement: Ms. Chandani Edussuriya, Research and Development Division, CEA, Ms. Sandamali Pathirage and Ms. Darshani Wijesinghe, IUCN Sri Lanka provided the maps and data for the natural resource profile. Ms. Kushani de Silva supported in coordination of the compilation of information. Ms. Dinithi Samarathunga and Ms. Padmi Meegoda supported in edits. Mr. Suranga De Silva, UNICEF Sri Lanka and Mr. Ajith Rodrigo, CEA supported in the project management. Compilation: Mr. Sampath de A Goonatilake Mr. Naalin Perera Mr. Gyan De Silva Prof. Devaka Weerakoon Dr. Ananda Mallawatantri Editor: Dr. Ananda Mallawatantri, IUCN ISBN: 978-955-0205-41-7 Citation: Goonatilake, S. de A., N. Perera, G.D. Silva, D. Weerakoon and A. Mallawatantri. 2016. Natural Resource Profile of the Kelani -
Pumped Energy Storage System for the Randenigala Hydropower Plant in Sri Lanka
Pumped Energy Storage System for the Randenigala Hydropower Plant in Sri Lanka Duminda Nalin Habakkala Hewage Master of Science Thesis KTH School of Industrial Engineering and Management Energy Technology TRITA-ITM-EX 2018:161 Division of Heat & Power SE-100 44 STOCKHOLM Master of Science Thesis in Energy Technology TRITA-ITM-EX 2018:161 Pumped Energy Storage System for the Randenigala Hydropower Plant in Sri Lanka Duminda Nalin Habakkala Hewage Approved Examiner Supervisors at KTH 2018-06-26 Miroslav Petrov - KTH/ITM/EGI Amir Vadiee, Miroslav Petrov Commissioner Local Supervisor Open University of Sri Lanka Dr. K.A.C. Udayakumar Abstract The main focus of this thesis work is to perform a preliminary evaluation for the introduction of a pumped energy storage system to an existing hydropower plant located on the Randenigala water reservoir in Sri Lanka. The selected power plant is located in an area where farming is done extensively, therefore electrical power generation and release of water for downstream irrigation purposes is to be properly coordinated with relevant authorities. The solution to this situation is to introduce a wind powered pumped energy storage power plant to the Mahaweli hydro cascade for the purpose of saving peak power for around half an hour. A feasibility study was carried out on the utilization of wind energy and excess power to drive the motors of the pumped storage system. Three versions with different numbers of pump motors and wind turbines have been considered to meet the half hour peak demand of the energy storage system. The optimum number of turbines and motor capacities and their number and brand have been selected with view of both energy and water management system. -
Forum23 植松g Optimization of Multireservoir Operation by Stochastic Dynamic Programming for Moragolla Hydropower Project in S
Optimization of Multi-reservoir Operation by Stochastic Dynamic Programming for Moragolla Hydropower Project in Sri Lanka International Consulting Operations, Water Resources Division, Water Resources & Energy Department, Sohei UEMATSU ○ Keywords reservoir operation, optimization, hydropower, stochastic dynamic programming ○ Outline Development of new hydropower project into an existing river management system sometimes impair the original purpose of the existing system, especially the new project was not considered in the original design of the river system. It is ideally imperative that the operation performance of existing facilities with planned new facilities is optimized together. However, it is practically difficult to optimize complex river management system without efforts to reduce the time for computation of the modern desktop computers. In the article, the optimization study for the Moragolla hydropower project in Sri Lanka is introduced in detail. The project is a newly planned hydropower project in the Mahaweli river system and the project was not originally designed during the first planning of the river management. Therefore the optimization is done with existing facility in the study. This article introduces the study as an example for multi-dimensional optimization. ○Technical Points This article explained as an example of limiting the number of multi-dimension problem. The optimization algorithm applied for the problem is stochastic dynamic programming (SDP). The program algorithm of SDP is expanded for n-dimension problems and applied for a feasibility study of the planned hydropower project, namely Moragolla Hydropower Project. In the study, daily operation of an existing hydropower and the planned Moragolla hydropower is simultaneously optimized with the multi-dimension SDP. ○ Figure, table, and picture Time Step (day) C.A. -
Democratic Socialist Republic of Sri Lanka Power Subsector Review
Report No 5713- DemocraticSocialist Republic of SriLanka PowerSubsector Review Public Disclosure Authorized July25, 1986 ProjectsDepartment SouthAsia RegionalOffice FOR OFFICIAL USE ONLY Public Disclosure Authorized Public Disclosure Authorized Document of the 'VorId Bank Public Disclosure Authorized This documenthas a restricteddistribution and may be used by recipients only in the performanceof their official duties.Its contents may not otherwiise bedisdosed without WorldBank authorization. SRI LANKA POWER SUBSECTOR REVIEW Currency Equivalents Mid-1983 US$1.00 = SL Rs 23.53 SL Rs 1.00 = US$0.043 Mid-1984 US$1.00 = SL Rs 25.44 SL Rs 1.00 = US$0.039 End-1984 US$1.00 = SL Rs 26.20 SL Rs 1.00 = US$0.038 End-1985 USR1.00 = SL Rs 27.20 SL Rs 1_nn = US$0.037 WEIGHTS AND MEASURES . kilometer (km) = 0.621 mile I ton = 1.102 short ton (sh ton) 0.984 long ton (Ig ton) 1 kilowatt (kW) = 1,000 watts (W) 3 1 megawatt (MW) = 1,000 kilowatts (10 kWa 3. gigawatt = 1,000,000 kiiowatts (10 kW) I kilowatt-hour (W h)= 1,000 watt-hours 3 1 megawatt-hour (MWh) = 1,000 kilowatt-hours (10i kWh) I. gigawatt-hour (GWh) = 1,000,000 kilow3att-hours (106 kWh) 1 kilovolt (kV) = 1,000 volts (10 V) I kilovolt-ampereb(kVA) = 1,000 volt-amperes (VA) 1 megavolt-ampere (MVA) = 1,000 kilovolt-amperes (103 kVA) ABBREVIAIIONS AND ACRONYMS ADB - Asian Oevelopment Bank AMP - Accelerited Mahaweli Program CEB - Ceylon Electricity Board CPC - Ceylon Petroleum Corporation DGEU - Department of Government Electrical Undertakings ECT - Energy Coordinating Team GOSL - Government of Sri Lanka GTZ - German Agency for Technical Cooperation HV - High Voltage LV - Low Voltage LECO - Lanka Electric (Private) Company LRAIC - Long-Run Average Incremental Cost LRMC - Long-Run Marginal Cost MASL - Mahaweli Authority of Sri Lanka MMD - Ministry of Mahaweli Development MPE - Ministry of Power and Energy MV - Medium Voltage WMP - Water Management Panel CEB's Fiscal Year is the calendar year FOR OFFICAL USE ONLY This report was prepared by N.C. -
Rilaw 3.Project ~3T71srilanka Niiber
AGUNCI PON IN1IUNAIONAI. OUVILOPUIN4NT 1. TANSACTION CODE DOCL"'?LNT PROJECT DATA AAwAdd Amendment Number CODE J{I D a o ee le e3 COU.NTRY/E.N TTY SRILAW 3.PROJECT ~3T71SRILANKA NIIBER . 3-0073 "w ,L BURtEAUI/OI FTC 5.PROJECT Trri (maximm40 carotn) ASIA 04- [ = AHAWELI BASIN DEVELOPMENT. PHASF 6. PROJECT ASSISTANCE COMPLETION DATE (PACD) 7. -ST-lMATED DATE OF OBL GATION (Under "3:'btiow.enter 1. Z .. or4) WA'C(DO0 C -- 1019131 d81 61 !tiilF [!1 .Qw-C.FnlF L 9. COSTS '3000 OR ZQQIVA:...NT S1 - A. FtUNDLNG SOURCE -:'UKST FY BL 3.FX' [_LIFE OF PROJECT C.LIC D. To, I E FX I F. LIC G. A DA ppr p a dTo tal 2nd7 ,gni 4 -2 0 Tou 25 000 9 1,3 U _ 1 .,1 l0 0_0 ___,, )M, )T 2.490 510 1 3 00. (E 507.f 4-2n I( 2s'nn AR -oR 1Q ) .lin7 n.L HaltCo y -- I b 5D.542 -_ 111I_999 111.999 Othr Donors) i - I - - Z91x0U TOTAL S - 29 000 4 1 ZU,/bU 10 792 I 3 15b4 699 , PRCHE.Y 9.SCEDULE OFAIDFUNDING ($000) -- A.A.PPRO. PRIMARY TET COD D.OBLIGATIONS TO DAE. AMOINT ,-PROVED F. WIE OF PROJEcT PROATONFURPOSE (I 480 I rs ACTION___ ,1 TEC COU u CODmEnt Z 1.o D ATE'sCD area SG2.'Lan .Grat A Loaed Y (u) FN I 2n00 - . ant 2.Loan I ______I_____22,=__'U 17000 TOTALS5ATOS 6 = I "U -L O OO A 10 10. ST $ARYTECHNICAL co ( i&sng of 3 onrulponech) T I an a milo o I I IM I IT.N 12. -
Fifth International Conference On
Asia_2014_Final Bulletin_V7_Layout 1 12/12/2013 11:58 Page 1 Fifth International Conference on Water Resources and Hydropower Development in Asia Conference and Exhibition Update Colombo, Sri Lanka ~11 to 13 March 2014 organized and hosted by The conference is held under the personal patronage of the Hon Minister of Power and Energy, Pavithra Wanniarachchi The ASIA 2014 Conference and Exhibition will bring together experts in all the disciplines associated with planning, financing, implementing, operating and refurbishing dams and hydro plants. Delegations from more than 60 countries are expected to attend, and will exchange knowledge and experience on a broad range of topics of particular relevance to the Asian countries, such as policy and planning, project finance, design and construction of water infrastructure, flood management, sedimentation management, hydro plant design, safety, pumped storage, rural electrification, power trading and climate change adaptation. Local organizations supporting the event include the Ministry of Power and Energy, the Department of Irrigation, the Mahaweli Authority of Sri Lanka, the Ceylon Electricity Board, the Central Engineering Consultancy Bureau, the Sri Lanka National Committee on Large Dams and the Sri Lanka Convention Bureau. Supporting Organizations include: ICID•CIID Local organizational support: Asia_2014_Final Bulletin_V7_Layout 1 12/12/2013 11:58 Page 2 ARRIVING IN COLOMBO Colombo, the capital of Sri Lanka can easily be reached from all parts of the world. There are direct flights from many countries, or connections via major Asian cities. See information below for more details. VISAS An Electronic Travel Authorization (ETA) system operates for Sri Lanka, avoiding the usual lengthy visa application processes. -
Green Power Development and Energy Efficiency Improvement Investment Program – Tranche 2 (Transmission Infrastructure Enhancement)
Initial Environmental Examination Document Stage: Draft Project Number: P47037-005(SRI) July 2016 SRI: Green Power Development and Energy Efficiency Improvement Investment Program – Tranche 2 (Transmission Infrastructure Enhancement) Prepared by Ceylon Electricity Board, Ministry of Power and Renewable Energy, Democratic Socialist Republic of Sri Lanka for the Asian Development Bank. CURRENCY EQUIVALENTS (as of 22 July 2016) Currency unit – Sri Lanka rupee/s (SLRe/SLRs) SLRe1.00 = $0.00684 $1.00 = SLRs146.03 ABBREVIATIONS ADB – Asian Development Bank CCD – Coast Conservation Department CEA – Central Environment Authority CEB – Ceylon Electricity Board DC or D/C – Double Circuit DPR – Detailed Project Report DSD – Divisional Secretariat Divisions EA – Executing Agency EARF – Environmental Assessment and Review Framework EIA – Environmental Impact Assessment EMoP – Environmental Monitoring Plan EMP – Environmental Management Plan EHV – Extra High Voltage GHG – Green House Gas GND – Gram Niladhari Divisions GoSL – Government of Sri Lanka GRC – Grievance Redress Committee GRM – Grievance Redress Mechanism GSS – Grid Sub Station IA – Implementing Agency IEE – Initial Environmental Examination LILO – Line – in- Line- out MFF – Multi-tranche Financing Facility MPRE – Ministry of Power and Renewable Energy PAA – Project Approving Authority PCB – Poly Chlorinated Biphenyl PMU – Project Management Unit GSS – Power Sub Station REA – Rapid Environment Assessment ROW – Right of Way RP – Resettlement Plan SC or S/C – Single Circuit SF6 – Sulphur Hexafluoride SPS – Safeguard Policy Statement WEIGHTS AND MEASURES ha (hectare) – Unit of area km (kilometer) – 1,000 meters kV – kilovolt (1,000 volts) kW – kilowatt (1,000 watts) MW – Mega Watt NOTE{S} In this report, "$" refers to US dollars. “SLRs” refers to Sri Lankan rupees This Initial Environmental Examination is a document of the borrower.