The untold benefits from under construction "Upper Tamakoshi Hydroelectric Project 456 MW" in Nepalese Hydropower Sector


Project Report, 2019
40 Pages, Grade: not applicable

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The untold benefits from under construction “UPPER TAMAKOSHI HYDROELECTRIC PROJECT 456 MW” in Nepalese Hydropower Sector

Mr. Suman Budhathoki, MSc. in Power Engineering (Germany)

The main backbone of sustainable energy resource of Nepal is going to be Hydropower in near future which is also mentioned in Energy Sector Vision 2050 [1]. Till date, the total installed capacity (On-Grid and Off-grid) of Hydropower is just approximately around 1050 MW which is 2.5% of economically feasible Hydropower capacity (42,000 MW at Q40) [1][2][3][4]. According to Energy Vision 2050, Nepal need to install 4100 MW, 11,500 MW and 31,000 MW by 2020, 2030 and 2050 respectively to meet the objectives of UN’s Sustainable

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Energy for All (SE4ALL) [1]. The electricity consumption per capita will achieve 265 kWh, 630 kWh and 1500 kWh by 2020, 2030 and 2050 [1]. According to Department of Electricity Development (DoED), 192 Hydropower Projects with issued generation license of total 7274 MW (updated on December 24, 2018) are in different phase of construction [3]. One of these Hydropower is Upper Tamakoshi Hydroelectric Project (UTKHEP) with installed capacity of 456 MW which has been declared as National Pride Project by the Government of Nepal.

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UTKHEP has set an example by successfully constructed Mega Structure (comprising of more than 18 km of Tunnel, 142 m length, 13 m width and 29 m height including Crown of underground Power House including 167.4 m length, 12.9 m width and 7.8 m height Transformer Cavern) with complete financing from Nepalese Organizations and Public Shares and some works are in progress. In addition to this, the Project has addressed local issues very well and allocated shares to the local people and because of that there is hardly any local disturbances in constructing the Project. This trend has motivated many other Private and Public Hydropower Projects to construct in similar modality. UTKHEP has annually invested significant amount on road, environment, infrastructure, social, education and health sectors. The local people living standard increses drastically and the goods and medicine are available in economic rate. Other aspect is manpower. UTKHEP has provided hundreds of employment in terms of skilled, semi-skilled and unskilled manpower. UTKHEP has assisted to build a carrier in International market and some of the manpower are now working in renowned International organizations. However, many of us have not thought the hidden benefits of this under construction Hydropower Project in Hydro sector. The most benefited Hydropower Projects due to UTKHEP existence are briefly illustrated here.

Tamakoshi V 95 MW

Tamakoshi Jalvidyut Company Limited, a subsidiary company of Nepal Electricity Authority (NEA) is developing a cascade Project of UTKHEP named Tamakoshi V with installed capacity 95 MW [2]. Till date, Tamakoshi V has received Generation License from DoED in 2017 [3]. It has also issued Prequalification notice of Civil and Hydromechanical

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Works in January, 2019 [2]. Besides, it has applied at Asian Infrastructure Investment Bank (AIIB) for Project’s financing [2]. Being a cascade Project of UTKHEP, it does not require any dam and other structures of Headworks, it does not need to construct separate transmission line which is now becoming huge challenge with respect to social issues and it does not require to construct major road. Since UTKHEP is a peaking run-off-river (PROR), Tamakoshi V automatically becomes PROR and will be benefited with Power Purchase Agreement tariff. Such conditions made Tamakoshi V an attractive Project and now it is in preconstruction phase.

Sipring Hydropower Plant 10 MW

Sipring Hydropower Plant with installed capacity of 9.658 MW has started its commercial operation date from May 2013 [2]. This small

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hydropower project is highly benefited from the all-weather conditioned road constructed on very tough terrain by UTKHEP and more than that Sipring Hydropower could evacuate its generated power to the construction work of UTKHEP as the proposed evacuation point 132/33 kV, 30 MVA Singati Substation and 40 km long 132 kV transmission line from Singati to Lamosangu is still under construction [2].

Rolwaling Khola 22 MW

Rolwaling Khola Hydropower Project with installed capacity of 22 MW has obtained the Survey License from DoED on September 2017 [3]. This Project is owned by UTKHEP itself and NEA Engineering Company is doing its Feasibility Study. Rolwaling River will be diverted to UTKHEP’s Dam through approximately 6 km long tunnel in order to increase the energy generation of UTKHEP during dry season.

Upper Lapche Khola 52 MW, Lapche Khola 160 MW, Jum Khola 62 MW, Rolwaling Khola 88 MW, Lapche-Tamakoshi 22 MW and Tamakoshi 9 HEP 24.46 MW

Upper Lapche Hydropower Project with installed capacity of 52 MW has concluded Power Purchase Agreement (PPA) with NEA without Financial Closure on August 2016 [2]. This Project has also obtained its Generation License from DoED on February 2017 [3].

Lapche Khola Hydropower Project with installed capacity of 160 MW has concluded PPA with NEA at 99.4 MW without Financial Closure on November 2017 [2]. This Project has obtained the Generation License with installed capacity of 160 MW from DoED on December 2017 [3].

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Jum Khola Hydropower Project with installed capacity of 62 MW has obtained the Survey License from DoED on December 2015 [3]. The Project has signed the contract with Sanima Hydro & Engineering Pvt. Ltd. for Feasibility Study on February 2016.

Rolwaling Khola Hydropower Project with installed capacity of 88 MW has obtained the Survey License from DoED on June 2017 [3]. The Project is under the Feasibility Study Stage.

Lapche-Tamakoshi Hydropower Project with installed capacity of 22 MW has obtained the Survey License from DoED on February 2018 [3]. The Project is under Feasibility Study Stage.

Tamakoshi 9 Hydropower Project with installed capacity of 24.46 MW has obtained the Survey License on June 2018 [3]. The Project is under Feasibility Study Stage.

These Projects are highly benefited from the all weathered road constructed by UTKHEP up to Lamabagar Dam Site. Approximately 28 km (Singati to Lamabagar) road falls under very tough terrain including around 340 m tunnel road, steep Rocky Mountains and landslide prone zones. Constructing such tough road by Private Hydropower Developers may not be feasible. The other big advantage of UTKEP is 220 kV Transmission Line for these Projects. The Projects only need to construct few kilometers of transmission line as UTKHEP is constructing 47 km long double circuit 220 kV transmission line from Gongar to 220/132 kV New Khimti Substation.

Other 7 Hydropower Projects with installed capacity of around 120 MW located in Khani Khola, Khare and Ghatte Khola catchment areas are also benefited from the all-weather conditioned road constructed by UTKHEP which are now in different phase of construction and few Projects may connect to national grid by this fiscal year 2075/76 B.S. (2019 A.D.).

References:

[1] Energy Sector Vision 2050 published by Water and Energy Commission Secretariat, Government of Nepal, November 2013

[2] NEA website ( http://nea.org.np/ ) and NEA Annual report 2018

[3] DoED website (http://doed.gov.np/)

[4] AEPC website (https://aepc.gov.np/)

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Annex 2: List of Issued Generation Licenses (Source: DoED)

updated on - 2075 Poush 09 (December 24, 2018)

Total capacity for 192 projects = 7273.82 MW

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[...]

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Details

Title
The untold benefits from under construction "Upper Tamakoshi Hydroelectric Project 456 MW" in Nepalese Hydropower Sector
Course
Hydropower
Grade
not applicable
Author
Year
2019
Pages
40
Catalog Number
V456441
Language
English
Tags
Renewable Energy, Hydropower Nepal, Upper Tamakoshi Hydropower Project
Quote paper
Suman Budhathoki (Author), 2019, The untold benefits from under construction "Upper Tamakoshi Hydroelectric Project 456 MW" in Nepalese Hydropower Sector, Munich, GRIN Verlag, https://www.grin.com/document/456441

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