1. Location

(i) State

:

Bihar

(ii) District

:

Araria

(iii) River

:

Parman

2. Project Area

(i) Longitude

:

North 26⁰30’

(ii) Latitude

:

East 87⁰15’

(iii) Access to the project

:

Purnia-Forbesganj-Bathnaha-Jogbani Road (NH)

(iv) Airport

:

Patna-300 KM

(v) Rail Head

:

Forbesganj-6 KM

(vi) Port

:

Kolkata

3. Scheme

(i) Type

:

Run of the river

(ii) Installed Capacity

:

4 x 2.0 = 8.0 MW

4. Hydrology

(i) Maximum annual rainfall

:

2191 mm

(ii) Minimum annual rainfall

:

1291 mm

(iii) Maximum intensity (one day)

:

318.5 mm

(iv) Design Flood

:

2000 m³/s

5. Power Potential

(i) Maximum Gross Head

:

6.55 mm

(ii) Minimum Gross Head

:

6.00 mm

(iii) Design (Rated) Head

:

5.0 m

(iv) Discharge available  for power generation

:

193.5 m³/sec at 75% dependable year

(v) Installed Capacity

:

4 x 2.0 MW

(vi) Annual Energy Generation

:

35.75 MU

6.  Diversion Structure

(i) Type of Diversion Structure

:

Gates Concrete Weir

(ii) Length

:

153.5 m

(iii) Height

:

7.0 m

(iv) No. of Gates

:

20

(v) Width of each year

:

1.5 m

(vi) Clear Span

:

6.25 m

7. Power House

(i) Length

:

45 m

(ii) Width

:

28.30 m

(iii) Height

:

29.2 m

(iv) Machine hall floor level

:

EL 53.0 m

8. Type of Turbine

(i) Type

:

Horizontal Axis ‘S’ type Tubular Turbine

(ii) Rated Discharge

:

48.375 m³/s per machine

(iii) Number of Turbines

:

4

(iv) Installed Capacity

:

4x2.0 = 8.0 MW

(v) Specific Speed of Turbine

:

717.77 kW-rpm

9. Generator

(i) Type

:

Horizontal Axis Synchronous Generator coupled to turbine through a speed increasing gearbox

(ii) Capacity

:

2.353 MVA

(iii) Number of Machines

:

4

(iv) Power Factor

:

0.85

(v) Frequency

:

50 Hz

(vi) Number of Phases

:

3

(vii) Voltage

:

3.3 kV

10. Step Up Transformer

(i) Type

:

Outdoor type self cooled

(ii) Quantity

:

1

(iii) Capacity

:

10 MVA

(iv) Voltage

:

3.3/33 kV

11. Speed Increasing Gearbox

(i) Speed on Turbine Side

:

120 rpm

(ii) Speed on Generator Side

:

750 rpm

12.Cost of Project

(i) Cost of Project

:

Rs. 60.11 Crores

(ii) Cost per KW installed

:

Rs. 75,000/-

(iii) Cost of energy

:

Rs. 2.21/kWh

(iv) Cost of sale of Energy

:

Rs. 2.74/kWh

13. Completion Period

:

2 years