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NHPC Dulhasti 1

NHPC is a Category-I Enterprise of the Government of India with an authorized share capital of Rs. 1,50,000 million. It is among the top ten companies in India in terms of investment, with an investment base of over Rs. 3,87,180 million. NHPC has executed 14 projects with an installed capacity of 5295 MW on its own, including projects undertaken through joint ventures. Hydroelectric power stations convert the potential or kinetic energy of water into electrical energy using turbines connected to generators. They are usually located in hilly areas where dams can store water and it can be released through penstocks to spin the water turbines and generate electricity. Hydroelectric power plants have many advantages including no fuel costs,

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307 views2 pages

NHPC Dulhasti 1

NHPC is a Category-I Enterprise of the Government of India with an authorized share capital of Rs. 1,50,000 million. It is among the top ten companies in India in terms of investment, with an investment base of over Rs. 3,87,180 million. NHPC has executed 14 projects with an installed capacity of 5295 MW on its own, including projects undertaken through joint ventures. Hydroelectric power stations convert the potential or kinetic energy of water into electrical energy using turbines connected to generators. They are usually located in hilly areas where dams can store water and it can be released through penstocks to spin the water turbines and generate electricity. Hydroelectric power plants have many advantages including no fuel costs,

Uploaded by

Sherry Sher
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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1.

1 INTRODUCTION OF NHPC

Category-I Enterprise of the Govt. of India with an authorised share capital of Rs. 1,50,000
Million . With an investment base of over Rs. 3,87,180 Million Approx. , NHPC is among the
TOP TEN companies in the country in terms of investment. Initially, on incorporation, NHPC
took over the execution of Salal Stage-I, Bairasiul and Loktak Hydro-electric Projects from
Central Hydroelectric Project Construction and Control Board. Since then, it has executed 14
projects with an installed capacity of 5295 MW on ownership basis including projects taken up in
joint venture. NHPC has also executed 5 projects with an installed capacity of 89.35 MW on
turnkey basis. Two of these projects have been commissioned in neighbouring countries i.e.
Nepal and Bhutan. During the financial year 2009-2010 , NHPC Power Stations achieved the
highest ever generation of 16960.45 MU.

1.2 HYDRO ELECTRIC POWER STATION

A Power station in which Potential energy or Kinetic Energy of water is converted into Electrical
Energy is called a Hydroelectric Power Station. In order to generate Electric Energy by this
method economically, ample quantity of water at sufficient head must be available. Therefore
Hydroelectric Power Stations are usually located in the hilly areas where Dams can be built at
suitable places to store large quantity of water in artificially reservoir. When water is made to
flow through Penstock and made to fall on the blades of Water Turbine (Prime-Mover), potential
Energy of water is converted into Mechanical Energy. Generators are coupled to the turbines,
which convert Mechanical Energy into Electrical energy.

1.3 ADVANTAGES

The Hydroelectric Power Plants have the following advantages:

 As no fuel is used in this case, so there are no charge of fuel and transportation.

 Fewer highly skilled engineers and operators are required are required at the time of
operation.

 Low maintenance cost, as the auxiliary plant is considerably smaller in size.

 As these stations are situated away from the developed areas, therefore, cost of land is
negligible.
 High efficiency (80 to 90%), as the stand by losses is very low.

 It is very neat and clean plant, as no smoke, dust or ash is produced.

 It can be put into service instantly.

 These plants have long life.

 Very actual governing I possible with turbines, therefore, these plants have constant speed or
frequency.

 These plants, in addition to generation of electric energy also serve other purpose such as
irrigation, speed control etc.

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