Ridikhola Small Hydropower Project, in Operation Important Dates :
| Power Purchase Agreement: 24 August 2006 (8 Bhadra 2063 B.S.) |
| Construction License: 31 May 2007 (17 Jestha 2064) |
| Project Construction Date: 8 August 2008 (23 Bhadra 2064 B.S.) |
| Project Completion Date: 31 August 2009 (15 Bhadra 2066 B.S.) |
| Commercial Operation Date: 27 October 2009 (10 Kartik 2066 B.S.) |
Project Locations:
| VDCs | : | Ruru and Digam VDCs at Gulmi & Siddeshwor VDC at Palpa district |
| Headworks | : | Digam VDC – 6 and Siddeshwor VDC – 1 |
| Penstock Alignment | : | Digam VDC-6 & Ruru VDC 7, 8 & 9, Gulmi |
| Powerhouse | : | Ruru VDC Ward No. 7, Gulmi |
Project Salient Features:
| Type of Project | : | Run-of River |
| River Catchment | : | 591 sq.km |
| Gross Head | : | 94.5m |
| Design Discharge | : | 3.2 m3/sec |
| Installed Capacity | : | 2400kW |
| Contract Energy | : | 15.73GWh (Annual) |
| Construction Period | : | 24 Months |
| Total Project Cost | : | NRs. 400 million |
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| View of Diversion Weir | Close View of Desilting Basin | View of Penstock Pipe |
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| View of Penstock Pipe | Overall View of Powerhouse | View of Turbine and Generator |
Bank Financing
- Bank of Kathmandu (lead bank)
- Machhapuchchhre Bank Limited
- Nepal SBI Bank Limited
Contractors
- Civil Works : Santoshi Adventure JV, Bharatpur, Chitwan
- Hydro-mechanical Works (Package I- Penstock Pipe) : Udeco-Structo JV, Patan
- Hydro-mechanical Work (Package II – Gates, Expansion Joints, Bifurcation, etc) – Machhapuchchhre Metal and Machinery Works (P.) Ltd., Pokhara Industrial State, Pokhara
- Electro-Mechanical Equipment (supply, erection, testing and commissioning) – Hunan Allonward Hydro-Generating Equipments Company Limited, Hunan, China
About the Project
- This is the project with combination of irrigation and power generation.
- The project has used longest penstock pipe (4650m) for water conveyance system.
- The headworks of the project is designed in such a way that it can store water at upstream for 5 hours during dry season. Water is stored to maintain the contract energy as there is frequent short time grid failure during windy season.
- This is the first small size project that has constructed surge tank to run project in isolated mode in Nepal.
- The project used local resources and local labour while developing this project.
- Project area people have invested in the share capital of the company.
A. Piluwakhola Hydropower Project (3MW) – In Operation Arun Valley Hydropower Development Company has constructed and operating Piluwakhola Small Hydropower Project at Sankhuwasava District in Koshi Zone. This is a run of river type project located in Eastern Part of the country at Piluwa River, a tributary of Arun River. The power purchase agreement with Nepal Electricity Authority (NEA) was completed in 2000 to supply 19.56GWh per annum. The construction of this project was started in March 2000 and completed in August 2003. The plant started commercial operation from 18 September 2003. The power generated from the project is synchronized into 33kV national grid close to the project and it helped to minimize the system losses. Nearly 300 villages of Sankhuwasabha, Terathum, Bhojpur and Dhankuta districts are directly benefited from the reliable supplied by this project. It has improved the livelihood of people of these areas.
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| View of Desilting Basin | Close View of Desilting Basin | View of Penstock Pipe |
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| View of Penstock Pipe | Overall View of Powerhouse | View of Turbine and Generator |
Project Location: Chainpur VDC, Sankhuwasabha Salient Features
| Installed Capacity | 3.0 MW |
| Design Discharge | 3.5 m3/sec |
| Gross Head | 112.5 meters |
| Contract Energy | 19.547 GWh |
| Construction Period | 36 months |
| Total Project Cost | NRs. 326.4 million |
| Cost Per Kilowatt | US$ 1451 Per KW (1 US $ =NRs.75) |
About the Project
- Unit cost of the power generation of this project is about US$ 1,451 per kW, which is one of the cheapest projects in Nepal. The benefits cost ratio (BC Ratio) and internal rate of return (IRR) of this project are 1.74 and 22.8 respectively.
- The project has used the latest 21st century technology. The machines installed in the project are imported from WKV (Wasserkraft Volk AG), Germany. There are two units of Turgo impulse turbine and generators. The powerhouse is automatically operated parallel with the 33kV national grid.
- The project used local resources and local labour while developing this project. Marushin Shitaka Construction Company Inc., Japan, its liaison office in Nepal has done civil construction work. Similarly, the metal contractor was Machhapuchhere Metal and Machinery Works Company (P.) Ltd. Pokhara, Nepal.
Loan Financing Banks
- Bank of Kathmandu Limited (Lead Bank)
- Nepal SBI Bank Limited
- Machhapuchchhre Bank Limited
- Nepal Bank Limited










