03-01-2011, 01:15 PM
KAPIL YADAV
EC IV YEAR
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NTPC TODAY
The largest power generation company in India, with
comprehensive in-house capabilities in building and
operating power projects
Current operating capacity – 28,644 MW (including JV)
18 coal based (23209 MW) and 8 gas based (5435 MW)
power plants
Setting up hydro based power plants (2471 MW under
implementation)
Developing coal mines for captive use (47 mtpa by 2017)
Plans to become 50,000 + MW company by 2012
ONE OF THE LARGEST INDIAN COMPANIES WITH A MARKET
CAP OF MORE THAN US$ 50 BILLION
HAS A NET WORTH OF AROUND US$ 13 BILLION
THE LARGEST GENERATOR IN INDIA WITH 20% OF INSTALLED
CAPACITY & 28% GENERATION OF THE COUNTRY
494TH LARGEST COMPANY IN THE WORLD: 6TH LARGEST UTILITY
IN ASIA (FORBES RANKING – 2006)
PLATTS HAS RANKED NTPC AS NO. 1 INDEPENDENT POWER
PRODUCER COMPANY IN ASIA, 2007
GOVERNMENT HAS 89.5% STAKE
10.5% WITH PUBLIC
GROWTH STRATEGY
Multi pronged approach to capacity addition
• Greenfield projects
• Brownfield expansion
• Joint ventures /Acquisitions
• Diversification in related business areas
• Hydro projects
• Coal Mining
• Power trading
• Oil / gas exploration
• LNG value chain
• Consultancy services
NTPC .… Performance Highlights
Environmental Focus
• World’s largest ESPs used by NTPC
• Environmental monitoring emphasis
• Efforts to increase Energy efficiency
11 NTPC Stations amongst top 20 in the country in 2005-06 including
taken over plants.
Lower Plant Efficiency in India
The reported efficiency of Indian power plants is generally lower as compared
to efficiency of plants abroad, primarily due to
• Poorer condenser vacuum due to hot climatic conditions
• Higher unburnt carbon losses in boiler due to low grade high ash Indian coal
• Efficiency is reported on HHV basis of coal (same as the practice followed in USA)
as against LHV used elsewhere
Adoption of new technologies
NTPC has been a pioneer in introducing new technologies in the
country.
Currently, super critical technology, advanced class GTs are some of
the technologies under induction.
NTPC has worked on development of Integrated Coal Gasification
Our Energy Technologies Centre is working in both fundamental and
applied fields and has a well-defined mandate to develop various
technologies which will enhance plant reliability, efficiency etc.
Technologies… for cleaner environment
High Concentration Ash Slurry Disposal System
Pneumatic Conveying System for Fly Ash
Pipe Conveyors for Cross Country Coal Conveying
Vapor Absorption Refrigeration System for all
Air Conditioning Requirements of Station
Ash Water Recirculation System
ELECTROSTATIC PRECIPITATOR
NTPC has installed high efficiency Electrostatic Precipitators (ESP)
in all its coal fired units.
Typical Indian coal has 3300 kcal/kg GCV with 45 % ash content
• Four/Six pass ESPs with 10/9 fields each for 500/660 MW unit
• NTPC’s ESPs are amongst the world’s largest
• Electrode spacing of 400 mm
• ESP efficiency of the order of 99.97%
• Limits Outlet Dust Burden at outlet to 20 mg/Nm3 with design coal
Flue Gas Desulphurization (FGD)
Provision of space is being kept in all existing plants for installation of FGD in future
• NTPC is putting up Flue Gas Desulphurization (FGD) plant for its Bongaigaon
TPP (3 x 250 MW) which is proposed to use high sulphur (as high as 2%) coal.
• Adoption of wet lime stone based Gypsum recovery Process
• SO2 removal efficiency> 90%
• Utilisation of Gypsum envisaged
