Post on 02-Feb-2021
SEPTEMBER, 2020
SANIMA MIDDLE TAMOR HYDROPOWER LIMITED
Shankha park, Dhumbarahi, Kathmandu, Nepal
SEPTEMBER, 2020
SANIMA MIDDLE TAMOR HYDROPOWER LIMITED
Shankha park, Dhumbarahi, Kathmandu, Nepal
GENERAL PROJECT OVERVIEW
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GENERAL INFORMATION:COMPANY :
Name : Sanima Middle Tamor Hydropower Limited (SMTHL)
Registration date : Registration No. 148796 (Baisakh 23 2073)
PROJECT :
Name : Middle Tamor Hydropower Project
River :Tamor River
Location : Phaktanglung Rural Municipality, Phungling Municipality,
Mikwa khola Rural Municipality, Taplejung, Province 1
Installed capacity : 73 MW
Gross head : 132 m
Design Discharge : 73.71 m3/sec
Annual Energy : 429.41 GWh
(Dry Energy 64.48 GWh & Wet Energy 364.93 GWh)
GENERATION LICENSE :
License Number : Bi. Bi. Bi. /073/74 Bi. U. 198
Issue Date : 25 Mangsir 2075 B.S.
PROJECT KEY DATES
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S.N. Activities Dates
1 Survey license to SHEPL 14 Feb 2008
2 Transfer of survey license from SHEPL to TSE 07 Jul 2011
3 Feasibility Study (75 MW cascade option) Sept 2013
4 Supplementary Feasibility Study (54 MW independent option) July 2016
5 EIA approval (75 MW cascade option) June 2013
6 Grid Connection Agreement 9 Mar 2015
7 Supplementary EIA approval (54 MW independent option) Nov 2016
8 Power Purchase Agreement (52.1 MW independent option) 10 Jan 2017
9 Generation License (54 MW independent option) 5 June 2017
10 Transfer of Generation License (From TSE to SMTHL) 06 Nov 2017
11 Consent Letter for expansion of Capacity from 54 to 73 MW from DoED 09 Oct 2017
12 Consent Letter for Supplementary EIA of the capacity-upgraded (73 MW) Project from Ministry of Environment 22 Dec 2017
13 Financial Closure with a Consortium of 8 Banks Feb 10, 2019
14 Main Civil Contract awarded to Zhejiang First Hydro & Power Construction Group Co. Ltd. 12 Apr 2018
15 SEIA approval for 73MW 23 Oct 2018
16 Power Purchase Agreement (PPA) for additional 20.9 MW 30 Nov 2018
17 Generation License received for 73 MW 10 Dec 2018
18 Land Ceiling Approval 4 July 2019
19 Award of Hydromechanical Contract to Machhapuchhre Metal and Machinery Works Pvt. Ltd 11 July 2019
20 Award of Electro-mechanical Works Contract to Chongqing Water Turbine Works Co. (CWTW), Ltd. 23 Dec 2019
21 Award of Transmission Line Works Contract to Cosmic Electrical Engineering Associates Pvt. Ltd. 07 June 2020
PROJECT KEY DATES
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Power
Purchase
Agreement for
73 MW signed
with Nepal
Electricity
Authority
2075/08/14
(Nov 30, 2018)
PPA Generation
License
Financial
Closure
Proposed
RCOD
Generation
License for 73
MW received
from
Department of
Electricity
Authority
(DoED)
2075/08/25
(Dec 11, 2018)
Agreement for
the Loan
Facility with
consortium of 8
Banks
Lead Bank:
NIBL
Co Lead: Nabil,
Global IME
Commercial
Operation of
the Plant
2079/04/01
(July 17, 2022)
Supplementary
Environment
Impact
Assessment for
73 MW
approved by
the Ministry of
Forests and
Environment
2075/07/06
(Oct 23, 2018)
SEIA
2075/10/27
(Feb 10, 2019)
CONSTRUCTION MANAGEMENT
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CONTRACT PACKAGES AND CONSULTANTS/CONTRACTORS:
Contract Package Award Date Contractor/ Supplier
The Engineer/ Consultant September 21, 2017 Sanima Hydro and Engineering (P.) Ltd., Nepal
Main Civil Works Construction April 12, 2018Zhejiang First Hydro & Power Construction Group
Co. Ltd., China
Hydro-mechanical Works July 11, 2019Machhapuchhre Metal and Machinery Works Pvt.
Ltd., Nepal
Electro-mechanical Works December 23, 2019 Chongqing Water Turbine Works Co., Ltd., China
Transmission Line Works June 07, 2020Cosmic Electrical Engineering Associates Pvt. Ltd.,
Nepal
PROGRESS AT MAIN CIVIL WORKS
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Civil Structure at Headworks (Sept. 2020)
• Contractor: Zhejiang First Hydro & Power Construction Group Co. Ltd.
• Contract Award Date: 12 April 2018
CONSTRUCTION PROGRESS
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PROGRESS AT HEADWORKS TILL DATE:
PROGRESS WORKS AT HEADWORKS
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• 96.40% of total concrete works at Headworks have been completed as of 13
Sept. 2020 in (INTAKE, UNDERSLUICE, FLOODWALL & CUTOFF SECTION)
Progress Status at Headworks of MTHP
Structures Works CompletedWorks
RemainingRemarks
Undersluice 98.00% 2% Ongoing
Intake 96.50% 3.50% Ongoing
U/s Floodwall 87.50% 12.50% Ongoing
D/s Floodwall 100% 0% Completed
U/s Cutoff Wall 100% 0% Completed
Total Concrete Progress at H/W 96.40% (ExcludingWeir)
PROGRESS AT HEADWORKS
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Intake Structure Front View Intake Structure Back View
PROGRESS AT HEADWORKS
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Intake and Undersluice Structure from Front View
Intake
Undersluice
Cutoff Wall
Coffer Dam
PROGRESS AT HEADWORKS
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Intake Structure from Back View
Intake
U/s Floodwall
Undersluice
PROGRESS AT HEADWORKS
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A view of Undersluice from Weir Side Top Slab of Undersluice
PROGRESS AT HEADWORKS
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Intake and Undersluice (A view from Hillside) Undersluice Panel-03
PROGRESS AT HEADWORKS
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Undersluice StructureU/s Floodwall View
PROGRESS AT UNDERGROUND WORKS
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• 64% by length and 47% by Volume of total tunnel works have
been excavated till date
• Length of tunnel has reached a total of 4241 meters (6634m Total)
Works Completed
• Approach Tunnel from Inlet
• Approach Tunnel-01
• Approach Tunnel-02
• Approach Tunnel-03
• Inspection Tunnel-01
• Inspection Tunnel-02
• Adit-01
• Connecting Tunnel to Surge Shaft
• Ventilation Tunnel
Works Ongoing
• Settling Basin Bay-01
• Settling Basin Bay-02
• Settling Basin Bay-03
• Connecting Tunnel-01
• Connecting Tunnel-02
• Connecting Tunnel-03
• Sediment Flushing Tunnel
• Gate Shaft (Inspection Tunnel to SB)
• Surge Shaft
• HRT• From Adit
• From Outlet
TUNNEL EXCAVATION WORKS TILL DATE
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Middle Tamor Hydropower Project (73 MW)Tunnel Excavation
S.N TunnelTotal Length
(m)Completed length (m)
Total Volume (m3)
Excavated Volume (m3)
Status
1 Approach Tunnel from Inlet 247.06 247.06 9292.92 9292.92 Completed2 Approach Tunnel-01 151.34 151.34 3363.12 3363.12 Completed3 Approach Tunnel-02 113.17 113.17 2505.37 2505.37 Completed4 Approach Tunnel-03 131.50 131.50 3025.22 3025.22 Completed5 Settling Basin Bay-01 150.00 59.60 29669.13 3143.70 Pending6 Settling Basin Bay-02 150.00 92.98 29669.13 5396.51 Active7 Settling Basin Bay-03 150.00 72.93 29669.13 4043.34 Active8 Connecting Tunnel-01 138.30 132.35 3002.49 2867.36 Pending9 Connecting Tunnel-02 117.37 112.50 2749.25 2638.66 Pending
10 Connecting Tunnel-03 121.32 104.60 2630.97 2251.25 Pending11 Inspection Tunnel-01 274.67 274.67 6068.56 6068.56 Completed12 Inspection Tunnel-02 289.52 289.52 7420.23 7420.23 Completed13 Adit-01 299.47 299.47 6782.49 6782.49 Completed14 Sediment Flushing Tunnel 506.36 5.00 3600.00 35.40 Pending15 Gate Shaft (Inspection Tunnel to SB) 66.00 SB-gate 4551.86 1106.05 Pending16 Connecting Tunnel to Surge Shaft 70.20 70.20 2765.88 2765.88 Completed17 Surge Shaft 87.73 8.00 16880.38 1312.98 Active18 Ventilation Tunnel 199.75 199.75 2560.64 2560.64 Completed
19.1HRT
From Adit3369.96
683.73133248.58
27411.12 Pending19.2 From Outlet 1192.43 46981.74 Pending
Total 6633.718 4240.80 299455.349 140972.54 47.08%
63.93% 47.08%Completed by length Completed by Volume
TUNNEL EXCAVATION WORKS NEAR H/D TILL DATE
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PROGRESS AT TUNNEL
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A view of Connecting Tunnel Junction
PROGRESS AT TUNNEL
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A view of Surge Shaft CrownA view of HRT from Adit
PROGRESS AT TUNNEL
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A view of SB-03A view of SB-02
PROGRESS AT TUNNEL
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A view of HRT from OutletInstallation of Ribs
CONSTRUCTION PROGRESS
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PROGRESS AT POWERHOUSE:
SUMMARY OF WORK PROGRESS
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PreConstruction
Works
U/SFloodwall
D/SFloodwall
U/S Cutoffwall
Intake UndersluiceSettling Basin
by lengthSettling Basin
by volume
TotalUnderground
works bylength
TotalUnderground
works byvolume
Surge Shaft
% Remaining 0 13 0 0 4 2 50 86 36 53 92
% Completed 100 87.5 100 100 96.50 98 50 14 64 47 8
0
20
40
60
80
100
120
Work Progress Chart at Active Work Fronts
% Completed % Remaining
PROGRESS IN HYDRO-MECHANICAL (HM) WORKS
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• Contractor: Machhapuchhre Metal and Machinery Works Pvt. Ltd.
• Contract Award Date: 11 July 2019
Hydro-Mechanical (HM) Works
• Hydro Mechanical works are on going simultaneously with the Main Civil
Contractor
• Installation of steel lining in Intake/Bed load sluice (Status: Completed)
• Installation of steel lining in Undersluice (Status: Ongoing)
• Radial Gate Frame erection (Status: Completed)
• Erection of Undersluice stoplog frame (Status: Completed)
• Installation of bedload sluice gate/ stoplog frame (Status: Completed)
• Rolling of Approach Pipes and Penstock Pipes (Status: Started from Aug. 09)
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Pipes for Inlet PortalRolling of Pipes at HM Contractor Workshop
PROGRESS IN HYDRO-MECHANICAL (HM) WORKS
PROGRESS IN HYDRO-MECHANICAL (HM) WORKS
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Erection of Radial Gate FrameFabrication of Approach Pipes at 3MW Workshop
PROGRESS IN HYDRO-MECHANICAL (HM) WORKS
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Steel Lining at UndersluiceTrunnion Box Fixing
PROGRESS IN ELECTRO-MECHANICAL (EM) WORKS
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• Contractor: Chongqing Water Turbine Works Co. (CWTW), Ltd., China
• Contract Award Date: 23 July 2019
Electro-Mechanical (EM) Works
• Electromechanical Contractor will mobilize as soon as the International Flights
are permitted
• Construction design and drawings (Status: 80% Completed)
• Construction of Draft tube elbow is ongoing in China (Status: 90% Completed)
PROGRESS IN ELECTRO-MECHANICAL (EM) WORKS
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Grinding and Painting of Draft Tube Components in ChinaFabrication of Draft Tube Elbow in Contractor’s Workshop in China
PROGRESS IN TRANSMISSION LINE (TL) WORKS
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• Contractor: Cosmic Electrical Engineering Associates Pvt. Ltd.
• Contract Award Date: 07 June 2020
Transmission Line (TL) Works
• Detailed survey of finalized Transmission Line route has been carried out
• IEE study is in progress
• Final alignment for transmission line is finalized
• Feasibility study of Transmission Line have been completed and submitted to DoED
• Engineering Design (Status: Complete)
• Check Survey (Status: Complete)
• Soil Investigation(Status: Complete)
PROGRESS IN TRANSMISSION LINE (TL) WORKS
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TL Contract Award (June 07, 2020) Detail Survey along the TL alignment
PROGRESS IN TRANSMISSION LINE (TL) WORKS
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Excavation works at Dhunge-Sanghu substation of NEA (Koshi Corridor)Geotechnical Investigation for Transmission Line
FINANCIAL PROGRESS
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• Till Date Expenditure: 29% Financial Progress has been achieved till date
Major Contract Packages% Financial
Progress
% Remaining
Budget
Main Civil Works 42% 58%
Hydro-
Mechanical
Works
Design and Fabrication
41% 59%
Steel Plates Procurement
100% 0%
Electro-Mechanical Works 7% 93%
Transmission Line Works 7% 93%
Financial Progress of MTHP 29% 71%
29%
Overall Financial Progress of MTHP
% Expense TillDate
OVERALL CONSTRUCTION PROGRESS TILL DATE
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40%
Overall Progress of Project = 40%
OverallProgress ofProject
45%40%
10% 10%
55%60%
90% 90%
0%
20%
40%
60%
80%
100%
120%
Main Civil Works Hydro-Mechanical Works Electromechanical Works Transmission Line Works
Construction Porgress
Works Completed Works Remaining
Particulars Works Completed Works Remaining
Main Civil Works 45% 55%
Hydro-Mechanical Works 40% 60%
Electromechanical Works 10% 90%
Transmission Line Works 10% 90%
Overall Construction Progress
of the Project: 40%
PHOTOGRAPHS OF ONGOING WORKS
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Intake
Undersluice
Coffer Dam
Tamor River
Cutoff Wall
Flood Wall
View of Headworks from Upstream side
PHOTOGRAPHS OF ONGOING WORKS
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Temporary diversion wall constructed from panel 08 to DS cutoffUndersluice Panel 04-08
PHOTOGRAPHS OF ONGOING WORKS
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Third stage temporary cofferdam preparation for Construction of WeirUndersluice and Weir Construction Area
Weir Axis
Tamor River
PHOTOGRAPHS OF ONGOING WORKS
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Undersluice from D/sA view of Undersluice
PHOTOGRAPHS OF ONGOING WORKS
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Undersluice Panel 03Intake and Undersluice Construction
PHOTOGRAPHS OF ONGOING WORKS
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A view of U/s FloodwallConstruction of Guard House (Near Simle Camp Area)
PHOTOGRAPHS OF ONGOING WORKS
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HRT from Adit-01Niche at HRT Outlet