Name of the Project: 17
MW Ranolia Hydropower Complex
Location: Ranolia Khwar (District Kohistan), KP
Salient Features:
Hydrology
Catchment Area 73
km2
Mean Annual Discharge 4.33 m3/sec
Total Annual Flow 136 million
cubic meter
Diversion Dam
Type Low height concrete diversion weir
Crest Elevation 1120.50 masl
Crest Length 20.0
m
Maximum height 3.0
m from river bed level
Design Flood (Q100) 854 m3/sec
Spillway
Type Overflow weir
Design Discharge (Q100) 854
m3/s
Intake & Headwork structures
Intake Side intake –gate controlled
Approach canal Rectangular – reinforced concrete
Settling Basin / Sand trap Reinforced
concrete 75.5 m X 16.5 m
Headrace Canal
Length 2,650
m
Type Reinforced concrete
Dimensions Rectangular,
2.5 m X 2.0 m
Bed slope 1:1000
Siphon with inlet and outlet ponds
Type Mild steel pipe, 1.5 m inner
diameter
Length 830
m
Maximum head 170 m
Penstock
Type Mild steel
Length 684 m
Diameter / thickness 1.50
m internal dia. 12 mm to 18 mm thickness
Power Facilities
Powerhouse Type Surface
Dimensions 28
m x 18 m
Gross Head 408.90
m
Net Head 404 m
Turbine (2 units) Pelton,
2 X 8.5 MW
Generators (2 units) Rated capacity 8.5MV x 2, Power factor 0.8
Transformers Rated
output 12.5, Voltage11/132 kV
Installed capacity 17
MW
Average Energy 100.5
GWh
Transmission Facilities:
Transmission line length 132 KV – about 2 Km and 11 KV about 4 Km
Objectives:
Adding cheap and clean energy into the system
Benefits:
Bulk and cheap energy
supply into national grid. Source of revenue for PEDO and Govt of Khyber Khyber
Pakhtunkhwa.
Resident Engineer
Contact No and Email:
Engr. Syed Aziz Ahmad
Contact No. 0300-5875610
Email Address: aziz.ahmad@pedo.pk