| Project Name | Nam Ou 1 |
| Status | Operational |
| River | Nam Ou |
| Sub-basin | Nam Ou cascade |
| COD | 2019 |
| Capacity (MW) | 180 |
| Annual Gen. (GWh) | 710 |
| Dam Type | Concrete gate dam |
| Height (m) | 52.5 |
| Turbine Type | Bulb |
| Turbine Configuration | 4 × 45 MW |
| Spillway Type | Gated spillway |
| Owner & Shareholders | Sinohydro 85%, EDL 15% |
| Customer | Electricité du Laos (EDL) |