ネパールのアルン第３水力，ＢＯＯＴ，コルカタの有力企業が参画を決定
A230923 International Water Power & Dam Construction https://onl.sc/XfE9fRv
Texmaco-SSMPL JV secures contract for Arun-3 hydropower project in Nepal
... hydropower project currently under construction in Nepal. The Texmaco-SSMPL JV, having recently secured an order valued at Rs 179.89 crore from ...

Arun-3 hydroelectric power plant, a 900MW ,SJVNにTexmacoが加勢 工事中
Texmaco-SSMPL JV, a joint venture led by Texmaco, has inked a significant contract (Package C-5) with the Satluj Jal Vidyut Nigam (SJVN) Arun-3 Power Development Company Limited (SAPDC) for the Arun-3 hydroelectric power plant, a 900MW run-of-the-river hydropower project currently under construction in Nepal.

The Texmaco-SSMPL JV, having recently secured an order valued at Rs 179.89 crore from SJVN Arun-3 Power Development Company Limited, is set to play a pivotal role in the project's progression. The scope of work encompasses procurement, fabrication, shop assembly, painting, testing, transportation, supply, erection, site testing, and commissioning of the Pressure Shaft Steel Liner. This job comprises the installation of two lanes of Pressure Shaft Steel Liner with a diameter of 5500mm, two bifurcations, four branches with a diameter of 4000mm each, along with the necessary accessories. The total estimated tonnage for this task stands at 4700 metric tonnes.

ＢＯＯＴ ２５年間
The Arun-3 hydroelectric power plant, governed under the build, own, operate, and transfer (BOOT) model, is a collaborative effort between India's SJVN and the Nepalese government. SAPDC, a wholly owned subsidiary of SJVN, will oversee the operation of the facility for a period of 25 years, excluding the initial construction phase lasting five years. Following this tenure, the ownership of the power plant will be transferred to the Nepal government.

ネパール政府，２１.９％無償提供
One of the most noteworthy aspects of this agreement is the significant benefit it brings to Nepal. During the initial 25 years of commercial operations, Nepal will receive 21.9% of the electricity generated at the Arun-3 power plant as free power, underscoring the mutual cooperation between India and Nepal in harnessing the potential of renewable energy resources.

Arun III

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Coordinates: 27°33′N 85°11′E
From Wikipedia, the free encyclopedia
Arun III is a hydro-electric project under construction on the Arun River in Sankhuwasabha District of Province 1, Nepal. The project is of 900 megawatts capacity and will be the largest hydropower plant in South Asia. It is constructed by SJVN Arun III Power Development Company Private Limited, a wholly owned subsidiary of SJVN Ltd.[1][2]

The estimated cost is US$1.6 billion including $156 million to develop the transmission line. It will generate about 4,018.87 million units of electricity annually. In February 2020, financial closure was done by the governments of India and Nepal. The project is constructed on a build-own-operate and transfer (BOOT) basis. SJVN will operate the plant for 30 years and then transfer the ownership to the Nepal government. During 30 years of operation, 21.9% of power will be provided to Nepal free of cost. The project’s construction is expected to generate 3,000 jobs in Nepal and India.[3]

Arun III
高さ７０m長さ４６６mのコンクリート重力ダム，１３００万トン，地下発電所，径９.５m距離１１７４kmトンネル，落差３０８m，３００kmの４０万ボルト送電線
Project details
The project consists of a 70m high and 466m wide concrete gravity dam across Arun River which will be able to store 13.94 million cubic meters of water. The dam will have six (now only five) sluice gates. There will be four underground desilting basins (they have since been removed from the proposal) having a length of 420m, a width of 16m and a height of 24m each. A 9.5m diameter tunnel having length of 11.74 km followed by 9.5m diameter two steel-lined pressure shafts and four penstocks will convey the flow to the powerhouse. The tailrace tunnel is 192m long and has a diameter of 10m. Four vertical Francis turbine units of 225MW each will be housed in an underground powerhouse. The gross head is 308m and the design net head is 286.21m. The power evacuation will be done via a 300 km-long, 400kV transmission line to India. It will be routed along Diding, Nepal to Dhalkebar, Nepal, and finally to Muzzafarpur, India.[3]

２６９家族移転
The civil contractor is Jaiprakash Associates. The hydro-mechanical contractor is Om Metals. The electro-mechanical contractor is BHEL. Total Management Services will monitor the environmental aspects. 269 families will be affected by the project construction, and they will be compensated by being provided with 30 units of electricity each free of cost every month.[3]

History
１９９２年にネパール政府が起案，１９９５年に世銀退却
The project was formed by Nepal Government in 1992. However, the NGOs, environment protectors and individuals worried against rampant privatization in the culture and natural beauty of the Arun valley expressed numerous concerns against it. The criticism of the project included fear of increase of already-high electricity tariffs and whether the size of the project was appropriate. There was also a debate for the road to the project area concerning deforestation and habitat fragmentation. In 1995, the World Bank decided to withdraw their support, effectively cancelling the project.[4]

２０１４年に再提案，インド売電，２０１７年決定
In November 2014, the project resurfaced and a Project Development Agreement was signed. The surplus power from the project will be exported to India from Dhalkebar, Nepal to Muzaffarpur, Bihar. In 2017, the cabinet of India approved the project for construction.[5]