Printer-friendly versionProfile of Arun III
Profile of Arun III
| LOCATION |
|
On the Arun river in Sankhuwasabha district,about 200 km east of Kathmandu |
| 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 phasewill account for US $760 million |
| OTHER COMPONENTS |
|
117 km access road to the project432 km long 220 kv transmission line to wheel thepower into the national grid at Duhabi in the 1st stage(120 km), and from Duhabi to Kathmandu via Dhalkebarin the 2nd stage (312 km) |
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 cusec3 radial gates, each with upstream stoplogs2 of the gates equipped with flap gates to control water |
| HEADRACE SYSTEM |
|
2 head race tunnels, 11.4 km long and 5.6 m in finisheddiameter 2 surge tanks, 95 m high and 15.9 m in diameter |
| 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,and service and unloading bays |
| TRANSFORMER CAVERN |
| 213.9 m x 10 m x 10 m |
