Teesta - Ministry of Power

16
Preliminary Feasibility Report
Teesta (I) HE Project (4 x 80 MW)
generating capacity installed in the country has already grown to 107903.53 MW by
March 2003.
For the purpose of system planning and operation the country has been divided into
following five geopolitical regions: Northern, Western, Southern, Eastern and North-
Eastern regional power grids and the transmission system are being progressively
inter-connected for efficient operation of these five regional grids.
The objective of the system development is to evolve self-sufficient regional grid
catering to the individual regional power demands. It is also aimed at achieving the
maximum benefits from integrated operation, through a proper mix of thermal and
hydro generation and ultimately to tie the five regional grids together to form a strong
National Power Grid, providing even greater reliability.
The power generated at Teesta I HEP (4 X 80MW) shall be partially absorbed in
North Sikkim and excess power shall be evacuated to national grid.
2.2.2 Power Position in East Sikkim Region
The total installed capacity in Eastern Region is 16696.68 MW. Out of this only
2459.51 MW is hydel installation. Thus the Hydro-thermal mix is 15:85, which is
well below the national average of 25:75 and desirable ratio of 40:60.
The power supply position for Eastern region during 10 th and 11 th Five Year Plans is
summarised in Table2.1. The power and energy availability and requirements during
and after 10 th Plan period in the Eastern Region is shown in Tables as projected in the
16 th Electric Power Survey, published by CEA.
Even considering the coordinated operation of existing hydro and thermal stations, as
well as benefits from ongoing projects and also from the schemes cleared by CEA,
the Eastern region is expected to face peak power and energy deficits during most of
the 10 th five Year Plan. The power situation in the region is dynamic and it is