MANUAL-1
Particulars of Organization, Functions & Duties
[Section-4 (1) (b) (I)]
1) Aim and objectives of the Organization:
For maximum power generation by proper utilisation of available resources.
2) Mission/ Vision:
(a) Vision:
To generate electricity with due care & concern to the environment.
(b) Mission:
(i) Optimum use of power channel water for generation of electricity.
(ii) To adopt state of the art technology for up gradation of Chiplima Hydro Electric Project, Chiplima to achieve the highest level of efficiency.
3) Brief history and background for its establishment:
Consequent to reforms and restructuring the power sector in Odisha under the Reform Act, 1995, Odisha Hydro Power Corporation Ltd. (OHPC), a Government of Odisha undertaking was incorporated under the Companies Act, 1956 on 21st April 1995.
Project Features:
The multi-purpose Hirakud Dam across the river Mahanadi was constructed for flood control, irrigation and power generation. Hirakud Dam is a composite structure of earth, concrete and masonary. The Main dam having an overall length of 4.8 km spans between hills Laxmidungri on left and Chandli dungri on the right. The dam is flanged by 21 km long earthen dykes, both on left and right sides to close the low saddles beyond the abutment hills. It has the distinction of being one time the longest dam in the world, being 25.8 km long with dams and dykes taken together. It also has the rare distinction of forming the biggest artificial lake in Asia with reservoir spread of 743 sq. km at full reservoir level. Hirakud dam intercepts 83400 sq. km of Mahanadi catchment. The reservoir has live storage and gross storage capacity of 5818 million cubic meter and 8136 million cubic meter of water respectively.
Water from dam enters the turbine through trash rack, intake structure and penstock and gets discharged into the tailrace through the turbine and draft tube. To control the flow, hydraulic intake gates are provided for each machine.
The power component of HPS consists of :
a) Power House I at Burla.
b) Power Channel- a 25 km long water conductor system to carry the tailrace water from Burla power house to Chiplima power house.
c) Power House- II at Chiplima.
These components were completed under three stages which are briefly described below :
Stage-I
The main features of Stage I are dam and appurtenant works, canal system and power generation & transmission. Four generating units with installed capacity 123 MW (2x37.5 + 2x24) were completed in PH-I at Burla.
Stage-II
The main feature of stage II are Power channel, power generation at PH I & II and transmission system.Two more generating units with installed capacity of 75 MW (2 x 37.5) were added in Burla Power House. Three generating units with installed capacity of 72 MW (3x 24) were completed in Power House- II at Chiplima. The work under stage II was started on Jan. 1957 and was inaugurated by late Dr. A. N. Khosla.
Stage-III
The work under stage III covers the installation of 7th Unit (37.5 MW) at Power House-I, Burla. The work started on 1st December, 1982 and completed on 13th September, 1990.
As a part of restructuring, Chiplima Power House (Power House No. II) has been separated from HPS, Burla, with effect from 01.07.2009 and renamed as Chiplima Hydro Electric Project, Chiplima.
4) Allocation of Business:
CHEP is looking after the works related to establishment, operation, maintenance and renovation of power house.
5) Duties to be performed to achieve the mission:
The respective branches namely technical, finance and human resources are functioning efficiently under the directions and control of the Unit Head for achieving the mission.