Cascade run-of-river scheme with 14.8 MW upper project and 42 MW lower project. Upper project comprises a diversion weir, side intake, gravel trap, surface desanding basin, peaking pond with forebay, a 1.7 km long, D-shaped concrete-lined headrace tunnel, a horizontal penstock tunnel, vertical shaft and surface powerhouse. The lower project comprises a forebay, a 4 km long, D-shaped concrete-lined headrace tunnel, a surge shaft, a vertical shaft, a penstock tunnel and surface powerhouse.
1.
Project management.
2.
Detailed design of all project structures.
3.
Design and approval of electromechanical and hydro-mechanical equipment and steelworks.
4.
Review and approval of Contractor’s shop drawings.
5.
Contract management, including preparation of variation reports, claim assessment, etc.
6.
Advising client on various technical and contractual issues.
Pondage run-of-the-river scheme with an installed capacity of 111 MW, 8.5 m high 61.5m long weir, three 125 long, 12 m high, 15 m wide underground desanders, 4.203 km long, 6.4*6.4 m horseshoe-shaped headrace tunnel, 60 m high, 16 m diameter surge shaft, 313m long, 4.8-2.5 m diameter penstock, a 12 m wide and 27 m high underground powerhouse, 90 m long, 12 m wide
and 10.75 m high transformer gallery, 564 m long tailrace tunnel, three adit tunnels, powerhouse main access tunnel, flushing tunnel to desanding basin, etc. and 10 km long, 132 kV transmission line.
SCI has carried out complete review and upgrading of client’s design, establishment of quality control procedures
1.
Review of design and tender documents.
2.
Assisting client in engaging EPC contractor for civil and hydromechanical works.
3.
Assisting client in engaging electromechanical supplier.
4.
Review and approval of EPC contractor’s designs.
5.
Review and approval of electromechanical and hydro—mechanical installation designs.
6.
Contract management.
7.
Construction supervision.
8.
Testing and commissioning.
SMEC International Pty. Ltd., Australia.
Aqua Energies LLC-USA
Rasuwagadhi Hydroelectric Project
Client :
Rasuwagadhi Hydropower Co. Ltd.
Kathmandu, Nepal
Location :Rasuwa District,
Central Development Region, Nepal
6,400 MW storage multipurpose project on Mahakali river along Indo-Nepal border. 315 m high rock fill dam, 65 km long reservoir covering 13,400 ha, intakes, tunnels, shafts and underground powerhouse on either bank.
1.
Verify project impacts during construction and operation phases.
2.
Prepare environmental management plans for construction and operation phases.
3.
Prepare environmental auditing plans.
4.
Prepare environmental monitoring plans.
5.
Prepare cost estimates for environmental management.
Pancheshwar Multi-Purpose Project
Client :
Pancheshwar Multipurpose Project, DoED
Location :Darchula, Baitadi and Dadeldhura District,
Far Western Development Region, Nepal
Multipurpose project with simple run-of-the-river hydropower scheme having an installed capacity of 48 MW, concrete barrage with stilling basin, frontal intake, two chamber surface desander with flushing canal, 12 km long 4.8 m diameter headrace tunnel, surge shaft and surface powerhouse.
The Client’s detailed design for the diversion dam and intake was simplified and made more functional in terms of hydraulics. Design of desander was changed incorporating two basins instead of three. The tunnel design prepared by the Client was completely revised using numerical modeling techniques, and use of Tunnel Boring was subsequently advised. The penstock bifurcation was improved for proper flows into the powerhouse.
1.
Review of topographical surveys, hydrological investigations and geological and geotechnical investigations.
2.
Review of detailed hydraulic design of barrage, intakes and desanding basins.
3.
Review of planning and geotechnical design of headrace tunnel, surge shaft and penstock.
4.
Numerical analysis and design of headrace tunnel;
5.
Review of structural designs of headworks structures and surface powerhouse.
6.
Review of quantity and cost estimates prepared by Client.
7.
Review of technical specifications, tender drawings and contract documents.
8.
Preparation of detailed review report with suggestions for design improvements and documentation
strengthening.
Bheri Babai Diversion Multipurpose Project
Client :Mid-western Regional Irrigation Directorate, Department of Irrigation Nepal
Pondage Run-of-the-river scheme with an installed capacity of 230 MW, 104 m long gated weir including piers with 42.75 m in height from deep foundation level), four underground 195 m long, 13.0 m wide, continuous flushing type desanding basin, 4.95km long with 7.20 m finished diameter headrace tunnel, Underground, with 22.50 m dia., 72.40 m in height surge tank, 144 m high, 5.40 m finished dia. with concrete / steel lined vertical penstock. Underground Vertical shaft, Francis turbine of 288 rpm. 93.10 m long, 12.90 m wide and 12.5 m high underground transformer cavern, 598 m with 4.2 m dia. 278 m long D – shaped with rectangular drain tailrace tunnel and 60 km long, 220 kV transmission line to Khimti S/S.
1.
Project planning.
2.
Topographical survey.
3.
Geological, geophysical and geotechnical investigations.
4.
Hydrological and sediment investigations.
5.
Plant capacity optimization.
6.
Design of project civil components.
7.
Selection and sizing of hydro-mechanical (gates, valves, etc.) and electromechanical equipment (generators,
transformers, etc.) for the project.
8.
Power evacuation studies.
9.
Project access road design (approx. 13 km).
10.
Preliminary design of transmission line.
11.
Preparation of construction schedule.
12.
Quantity and cost estimation.
13.
Economic and financial evaluation.
Dudh Koshi-II Hydroelectric Project
Client :Dudh Koshi Hydropower Pvt. Ltd.
Hyderabad, India
Location :Solukhumbu District, Eastern Development Region, Nepal
Pondage run-of-the-river scheme with an installed capacity of 130 MW, 58.75 m high concrete gravity dam, two underground desanders, 3.45 km long, 7.3 m diameter headrace tunnel, surge shaft, vertical shaft, penstock tunnel, underground powerhouse and transformer gallery, tailrace tunnel and a 10 km long, 220 kV transmission line.
SCI successfully completion of the DPR and EIA studies. DPR approved by international review consultant appointed by client. EIA report approved by Ministry of Environment, Government of Nepal.
Detail Project Report
1.
Topographical survey.
2.
Geological, geophysical and geotechnical investigations.
3.
Hydrological and sediment investigations.
4.
Plant capacity optimization.
5.
Design of civil components.
6.
Selection and sizing of hydro-mechanical (gates, valves, etc.) and electromechanical equipment (generators,
transformers, etc.) for the project.
7.
Power evacuation studies.
8.
Preliminary design of 220 kV transmission line.
9.
Quantity and cost estimation.
10.
Economic and financial analysis.
Environmental Impact Assessment (EIA)
1.
Preparation of scoping report and terms of reference for EIA.
2.
Desk and field studies / investigations, including forestry sampling, fish sampling, focus group discussions, key
informant surveys, checklist surveys and household questionnaire surveys, for defining baseline conditions for
physical, biological, socioeconomic and cultural environments.
3.
Assessment of project impacts on the project environment.
4.
Alternative analyses for project, construction materials, construction techniques, etc.
5.
Preparation of mitigation measures.
6.
Preparation of environmental management, monitoring and auditing plans.
7.
Public hearings and discussions with / presentation for stakeholders.
Budhi Gandaki 'Ka' Hydroelectric Project
Client :Naulo Nepal Pvt. Ltd
A Subsidiary of Patel Engineering Ltd., Mumbai, India.
Location :Gorkha District, Western Development Region, Nepal.
Pondage run-of-the-river scheme with an installed capacity of 260 MW, 22 m high, 10-bay gated barrage, underground desander, 7 km long, 7.2 m diameter headrace tunnel, surge shaft, underground powerhouse, transformer gallery tailrace tunnel and 80 km long, 220 kV transmission line.
SCI successfully completion of the DPR and EIA studies. DPR approved by international review consultant appointed by client. EIA report approved by Ministry of Environment, Government of Nepal.
Detail Project Report
1.
Topographical survey.
2.
Geological, geophysical and geotechnical investigations.
3.
Hydrological and sediment investigations.
4.
Plant capacity optimization.
5.
Design of civil components.
6.
Selection and sizing of hydro-mechanical (gates, valves, etc.) and electromechanical equipment (generators,
transformers, etc.) for the project.
7.
Power evacuation studies.
8.
Preliminary design of 220 kV transmission line.
9.
Quantity and cost estimation.
10.
Economic and financial analysis.
Environmental Impact Assessment (EIA)
1.
Preparation of scoping report and terms of reference for EIA.
2.
Desk and field studies/investigations, including forestry sampling, fish sampling, focus group discussions, key
informant surveys, checklist surveys and household questionnaire surveys, for defining baseline conditions for
physical, biological, socioeconomic and cultural environments.
3.
Assessment of project impacts on the project environment.
4.
Alternative analyses for project, construction materials, construction techniques, etc.
5.
Preparation of mitigation measures.
6.
Preparation of environmental management, monitoring and auditing plans.
7.
Public hearings and discussions with / presentation for stakeholders.
Budhi Gandaki 'Kha' Hydroelectric Project
Client :Naulo Nepal Pvt. Ltd.
A Subsidiary of Patel Engineering Ltd., Mumbai, India.
Location :Gorkha District,
Western Development Region, Nepal
Pondage run-of-the-river scheme with an installed capacity of 30 MW, 54 m high concrete gravity dam with two gated spillways and stilling basins, two 120 m long, 4 m diameter connecting tunnels, two 125 long, 32 m high, 12 m wide underground desanders, 4.067 km long, 5.2 m diameter headrace tunnel, 48 m high, 8 m diameter surge shaft, 72 m high, 3.9 m diameter vertical shaft, 300 m long, 3.9 m diameter penstock tunnel, a semi-underground powerhouse, 743 m long tailrace box culvert and 131 km long, 132 kV transmission line.
Civil construction works were conducted under extremely difficult geological conditions. A new 162 m high slope was designed and constructed behind the powerhouse. Dam and stilling basin designs had to be modified to suit site conditions and technical requirements. Treatment of extremely severe squeezing encountered in 843 m long stretch of the headrace tunnel was designed and is being successfully carried out (70% complete).
1.
Project management.
2.
Review and upgrading of detailed design of headworks, intake, desading basin, headrace tunnel, surge shaft,
vertical shaft, horizontal penstock tunnel, surface powerhouse, switchyard and tailrace (with major redesigns).
3.
Detailed design of access road to powerhouse, headworks, surge shaft, construction adits, etc. (approx. 12 km).
and 55 m long permanent bridge at headworks.
4.
Detailed design for new structures, including stabilization of 162 m high powerhouse slope and squeezing
treatment in 843 m length of the headrace tunnel.
5.
Coordination with electromechanical / hydro-mechanical consultant and contractor.
6.
Review and approval of Contractor’s shop drawings.
7.
Contract management, including preparation of variation reports, claim assessment, etc.
8.
Advising client on various technical and contractual issues.
9.
Quality control and quality assurance.
10.
Progress monitoring and reporting.
11.
Certification of contractor’s bills.
12.
Preparation of as-built reports and drawings.
Chameliya Hydroelectric Project
Client :Nepal Electricity Authority
Location :Darchula District, Far-western Development Region, Nepal
Run-of-the-river scheme with an installed capacity of 78 MW, 9 m high dam (weir with ungated overflow section and gated under sluice), two side intakes, two connecting tunnels, two underground desander, 3.675 km long, 3.1 m diameter headrace tunnel, 30 m high, 10 m diameter surge shaft, 345 m high, 2.6 m diameter vertical shaft, 215 m long 2.6 m diameter penstock tunnel, underground powerhouse housing 3x26 MW pelton turbines, underground transformer cavern, 278 m long tailrace tunnel and 42 km long, 132 kV transmission line.
EIA report approved by Ministry of Environment, Government of Nepal.
1.
Project planning.
2.
Topographical survey.
3.
Geological, geophysical and geotechnical investigations.
4.
Hydrological and sediment investigations.
5.
Plant capacity optimization.
6.
Design of project civil components.
7.
Selection and sizing of hydro-mechanical (gates, valves, etc.) and electromechanical equipment (generators,
8.
transformers, etc.) for the project.
9.
Power evacuation studies.
10.
Preliminary design of transmission line.
11.
Preparation of construction schedule.
12.
Quantity and cost estimation.
13.
Economic and financial evaluation.
14.
Environmental impact assessment of the hydropower component.
Ghunsa Khola Hydroelectric Project
Client :Department of Electricity Development
Location :Taplejung District,
Eastern Development Region, Nepal
Updating of social data collected during EIA in 1998 and preparation of Vulnerable Community Development Plan for reservoir and powerhouse area of the West Seti Hydropower Project, a 750 MW storage project in far-western Nepal.
1.
Socio-economic survey of 200 s project affected household and vulnerable communities in project area.
2.
Identification and socio-economic survey of 300 vulnerable community households in the project area.
3.
Development of plans for project-benefit accrual, capacity building, supporting viable and sustainable production
systems, promoting self reliance and monitoring.
4.
Preparation of resettlement and rehabilitation plans for vulnerable communities.
EIA Social Update and Vulnerable Community Development Plan
Preparation of guidelines for planning, investigation, design, construction, operation and maintenance of headworks of run-of-river hydropower projects in Nepal.
1.
Review of national and international literature on headworks.
2.
Study of headworks of operational and under-construction hydropower projects in Nepal.
3.
Preparation of detailed guidelines for planning, investigation, design, construction, operation and maintenance,
including physical modeling.
Design Guidelines for Headworks of Hydropower Projects
Environmental Impact Assessment (EIA) of 131 km long, 132 kV connecting the powerhouse of Chameliya Hydroelectric Project at Balanch to the National Grid at Attariya.
1.
Scoping and preparation of Terms of Reference for EIA.
2.
Environmental baseline data collection.
3.
Impact assessment.
4.
Alternative analyses.
5.
Preparation of mitigation measures, monitoring and management plan, environmental auditing plans.
Providing technical assistance and associated training services to assist His Majesty’s Government of Nepal in its efforts to increase private sector participation in environmentally and socially sustainable hydropower development.
1.
Preparation of plans and policies for strengthening the Department of Electricity Development (DoED).
2.
Improving technical capability of DoED.
3.
Training governmental and non-governmental agencies involved in private sector hydropower development.
4.
Contract document preparation, consultant selection, monitoring and review of feasibility studies and
environmental impact assessments of Maya Khola (5 MW) and KhareKhola (14.7 MW) hydropower projects in
Nepal.
5.
Database management system for tracking license application, royalty payments and operation and maintenance
monitoring of hydropower projects.
6.
Assisting DOED in implementing the World Bank’s Power Development Fund.
International Resources Group Limited, USA.
Increased Private Sector Participation in Environmentally and Socially Sustainable Hydropower Development
Client :Department of Electricity Development
(Project funded by USAID, Nepal)
Operation and maintenance of private sector run-of-the-river scheme with an installed capacity of 36 MW, 65 m long weir, surface desander, 3.3 km tunnel, underground surge tank, surface power house and 30 km long 132 kV transmission line.
1.
Operation and maintenance of the project.
2.
Instrumentation and monitoring of powerhouse, dam and penstock.
Upper Bhote Koshi Hydroelectric Project
Clients :
Bhote Koshi Power Company Pvt. Ltd.
Location :Sindhupalchowk District, Central Development Region, Nepal
Feasibility study of run-of-the-river scheme with an installed capacity of 3 MW, 5 m high weir, 50 m long weir with a lateral intake, a surface desander, 3.1 km tunnel conveyance system, surge tank and surface powerhouse
1.
Topographical survey, geological and geotechnical investigations.
2.
Hydrological and sediment investigations.
3.
Design of project components, plant capacity optimization.
Upgrading study and detailed design of pondage-run-of-river scheme with an installed capacity of 71 MW, 30 m high concrete gravity dam, surface desander, 5 km tunnel conveyance system, surge tank and underground powerhouse.
1.
Geological and geotechnical investigations.
2.
Upgrading of hydrological investigations.
3.
Analysis and detailed design of headrace tunnel and underground desander.
4.
Preparation of construction stage drawings.
1.
Lahmeyer International GmbH, Frankfurt, Germany
2.
Fichtner JV, Germany.
Middle Marsyangdi Hydroelectric Project
Client :Nepal Electricity Authority
(funded by KfW)
Location :Lamjung District, Western Development Region, Nepal
Detailed design and construction supervision of pondage run-of-the-river scheme with an installed capacity of 144 MW, 43 m high diversion dam, surface desander, 6 km tunnel, surge tank and powerhouse and 100 km long 132 kV transmission line.
1.
Rock mechanics investigation, instrumentation and monitoring.
2.
Numerical modeling of underground and surface excavations.
3.
Detailed structural analysis, design and detailing for powerhouse, dam, power conduit, etc.
4.
Geotechnical analysis and design of desanding basin slope, tunnel lining and reinforcement, stability analysis of
dam.
5.
Site supervision and quality control.
1.
Morrison Knudsen Corporation, U.S.A.
2.
Norconsult International, Norway.
3.
I.V.O., Finland.
Kali Gandaki 'A' Hydroelectric Project
Client :Nepal Electricity Authority
(Funded by Asian Development Bank)
Location :Syangja District, Western Development Region, Nepal
Feasibility study and EIA of 51 MW pondage-run-of-the-river scheme with 10 m high weir, surface desander, 5 km tunnel conveyance system, surge tank and surface powerhouse.
1.
Topographical survey, geological, geotechnical and hydrological investigations.
2.
Design of project components, plant capacity optimization.
3.
Design of 30 km long 132 kV transmission line.
4.
Environmental Impact Assessment of hydropower project.
5.
Quantity and cost estimation.
6.
Economic and financial analysis.
Likhu - IV Hydroelectric Project
Client :
Nepal Electricity Authority (Funded by World Bank)
Location :Okhaldhunga District, Eastern Development Region, Nepal
Load forecast surveys, socio-economic and environmental impact assessment surveys for rural electrification and distribution strengthening of new and existing distribution grids.
1.
Load forecast surveys.
2.
Socio-economic and environmental impact assessment surveys.
3.
Questionnaire development, field enumeration, tabulation and analyses of data.
4.
Transmission and distribution system designs for rural electrification and sub-stations.
5.
Improvement of existing sub-stations and distribution lines.
1. Worley International, New Zealand
Rural Electrification and Distribution Improvement Project
Client :Nepal Electricity Authority
(Funded by Asian Development Bank)
Feasibility Study of run-of-the-river scheme with an installed capacity of 7.5 MW, diversion weir, surface desander, 3.5 km canal and tunnel conveyance system, forebay and powerhouse.
1.
Topographical survey, geological and geotechnical investigations.
2.
Hydrological studies.
3.
Feasibility level design of project components.
4.
Preliminary design of 35 km long, 66 kV transmission line.
5.
Initial environmental examination.
6.
PPA Negotiations with Nepal Electricity Authority.
Indrawati - III Hydroelectric Project
Client :National Hydropower Company Limited
Location :Sindhupalchowk District, Central Development Region, Nepal
Project definition study of 36 MW run-of-river scheme with 65 m long weir, desander, 3.3 km tunnel, underground surge tank, surface power house and 26 km long 132 kV transmission line.
1.
Review of geological, geotechnical and hydrological data.
2.
Review of proposed design and recommendations for the detailed design.
3.
Landslide stabilization study.
4.
Study and EIA of the 26 km long, 132 kV transmission line.
5.
Glacial Lake Outburst Flooding (GLOF) investigations.
6.
Investigation of 102 highway bridges to the project site.
Upper Bhote Koshi Hydroelectric Project
Client :Bhote Koshi Power Company Pvt. Ltd.
Location :Sindhupalchowk District, Central Development Region, Nepal
Pre-feasibility study of pondage-run-of-the-river scheme with an installed capacity of 123 MW, 63 m high rock-filled dam, surface desander, 7 km tunnel conveyance system, surge tank and surface powerhouse.
1.
Topographical survey, geological and geotechnical investigations at site, hydrological investigations.
2.
Selection and design of project components, plant capacity optimization.
3.
Preliminary cost estimation and economic and financial.
Tama Koshi - 3 Hydroelectric Project
Client :Indsil Electrosmelts Limited, India
Location :Dolakha District, Central Development Region, Nepal
Upgradation of the power generation of the Trishuli and Devighat Hydroelectric Projects by 95 GWh annually through rehabilitation and upgrading hydraulic structures and electro-mechanical equipment in the power house.
1.
Design, construction supervision of foundation systems, including well foundations, for major hydraulic structures,
seepage analysis, landslide investigation and stabilization.
2.
Design of high-strength concrete mixes and construction supervision of prestressing of aqueduct flume.
3.
Quality control of construction materials.
Canadian International Water and Energy Consultants (CIWEC)
Trishuli-Devighat Hydropower Upgrading Project
Client :Nepal Electricity Authority
Location :Nuwakot District, Central Development Region, Nepal
Upgrading studies for run-of-river scheme with an installed capacity of 45 MW, diversion dam, intake, desanding facility, surface penstock/tunnel and power house.
1.
Alignment selection of penstock route from the intake at Ngadi to the power house at Khudi.
2.
Topographic surveying.
3.
Geological mapping and geotechnical investigations.
4
Preliminary costing of alternative schemes.
Upper Marsyangdi Hydroelectric Project
Client :Matthews International, Canada
Location :Lamjung District, Central Development Region, Nepal
Feasibility study of run-of-the-river scheme with an installed capacity of 36 MW, 65 m long weir, surface desander, 3.3 km tunnel, underground surge tank, surface power house and 30 km long 132 kV transmission line.
1.
Geological and geotechnical investigations.
2.
Preparation of geological maps and sections of the project area, classification of rock mass, interpretation of field
data.
3.
Preliminary analysis and design of headrace tunnel, access tunnels, underground desanders, surface slopes using
sophisticated computer softwares, rate analysis and cost estimation.
Run-of-the-river scheme with an installed capacity of 15 MW, diversion weir, surface desander, 3.5 km tunnel, forebay and powerhouse and 30 km long 132 kV transmission line.
1.
Project definition studies.
2.
Hydropower project planning including geological, geotechnical and rock mechanics investigations.
Modi Khola Hydroelectric Project
Clients :Power Development Nepal.
Location :Parbat District, Western Development Region, Nepal