Profile of Arun III
| LOCATION |
On the Arun river in Sankhuwasabha district, |
| TOTAL POTENTIAL OF THE ARUN BASIN |
| 1,045 mw |
| PRE-FEASIBlLITY STUDY |
| March 1985 |
| FEASIBILITY STUDY |
| June 1987 |
| DETAILED ENGINEERING STUDY |
| December 1992 |
| TARGET COMMISSIONING DATE |
| April 1, 2001 |
| TOTAL POWER GENERATION |
| 201 mw (Phase I), 201 mw (Phase II) |
| TOTAL ESTIMATED COST |
US $1.2 billion. of which the 1st phase |
| OTHER COMPONENTS |
117 km access road to the project |
Technical profile
| FIRM FLOW OF THE ARUN RIVER |
| 75 cubic metre/second |
| MAXIMUM GROSS HEAD |
| 304 metres |
| CONCRETE GRAVITY DAM |
| 68 m high and 165 m long |
| SPILLWAY |
Discharge capacity of 8,100 cusec |
| HEADRACE SYSTEM |
2 head race tunnels, 11.4 km long and 5.6 m in finished |
| DESANDING BASINS |
| stage 1- 2 basins (110 m x 17 m x 28 m) Stage 11- 2 basins |
| TURBINES |
| 3 x 67 mw for each phase |
| POWER CAVERN |
168.24 m x 22 m x 35.25 m to house 6 generating units, |
| TRANSFORMER CAVERN |
| 213.9 m x 10 m x 10 m |