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Location – Vientiane province
Commenced operation: 1971
Investors: Electricité du Laos (EdL)
Planned market: Laos/Thailand
Nam Ngum Dam was the LPDR’s first hydro dam. It was financed with assistance from 10 countries, under the auspices of the United Nations. It was constructed by a Japanese firm and was completed in 1971.
Nam Ngum Dam generates most of Laos' electricity, including all the power used in the capital, Vientiane. 70% to 80% of electricity is exported to Thailand, accounting for about a quarter of Laos' foreign exchange earnings.
Nam Ngum 1 Features:
| Name of Project |
Nam Ngum 1 |
| 1. Location |
River: Nam Ngum |
| Province: Vientiane |
| 2. Operation date |
22/12/1971 |
| 3. Investment Mode |
Public |
| 4. Owner |
EDL |
| 5. Contractor |
Main: Hitashi |
| Principal: Hasama |
| 6. Operator |
EDL |
| 7. Market |
Laos: 100 % |
| Thailand: % |
| 8. Install Capacity |
155 MW |
| 9. Average Annual Energy |
1,025 GWh/year |
| 10. Plant Factor |
75% |
| 11. Turbines |
Unit 1 & 2 : 2 x 17.5 MW Francis |
| Unit 3, 4 & 5 : 3 x 40 MW Francis |
| 12. Project Type |
Reservoir |
| 13. Catchment Area |
8,460 km2 |
| 14. Reservoir Area |
370 km |
| 15. Resettlement |
3,242 People |
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