Commissioning Schedule:

Unit - I : 5.9.95

Unit - II : 28.9.95

Unit - III : 13.1.96

Unit - IV : 16.2.96

Generation data:

Since commission of the project in 1995-96, RMP is supplying steady power and we have been able to generate record Generation of about 185 million units of energy during the year 1996-97 with three units in operation against target of 180 MU.

Yearwise generated data are furnished below:

96. - 69.79 MU

97. - 185.00 MU - against target of 180 MU

98. - 178.50 MU - against target of 180 MU

Upto 15^th October 1998 - 174.6 MU - against target of 180 MU for the whole year 1998-99.

During the year 1998-99 we are going to break all previous records since all the four units have been put into operation during the last monsoon months and against installed capacity of 51 MV we have been able to generate 52 MV continuously from July, August & September 1998. Against target generation of 180 MU as fixed by Central Electricity Authority we could generate 174.6 MU upto 15^th October 1998 and hopes to record generation of about 220 MU breaking all previous records against target generation of 180 MU for the whole year 1998-99.

Salient features:

Rammam Stage-II has been implemented by utilising the Rammam river only in the 1^st phase. The other phase of the project to divert Lodhama River is now on the final stage of preparation of Survey and pre-construction investigation by Geological Survey of India. GSI has already completed field work and necessary reports and drawings are expected shortly and will be implemented reports and drawings are expected shortly and will be implemented after receipt of drawings. On implementation of Lodhama diversion scheme, we expect to generate additional about 38 MU of energy by the same four machines already commissioned.

Description of the Project:

Water from Rammam river is now being utilised by tapping water at the Intake by drop type weir structure. Before entering into Forebay, the water is made free of boulders stone/gravels/course send/silt by passing through desilting basin. From desilting basin almost silt free water is fed into the Forebay through D type 3.25 K.M. tunnel. The Forebay is a common Forebay both for entry of Rammam River water and Lodhama River Water (to be diverted) with a capacity of 13700 CUM. The Forebay tank apart from storage of water will act as surge tank during load fluctuation. For spilling of excess water in case of sudden tripping of machines or otherwise at present we are utilising adit tunnel as spillway section. Invert level of the Forebay is 1425.5 M. from Forebay water is flown through two nos. of steel penstock pipes with internal diameter of 1.31M. Length of the two penstock pipes are 932 m and 920 M. Each penstock pipe feeds two units of Turbo Generator.

Evacuation of Power:

Power generated at Rammam is evacuated through 2 nos. of 132 KV Tr.Lines. One of line feed power to 132 KV grid at NBU Sub-Station. While another line from power Station to 132K.M. Lebong Sub-Station at Darjeeling.

Power at 132 KV will also to be supplied to Sikkim through 132 KV Rangeet Bay through our Sub-Station.

Project cost in crores:

Conclusion: