Thermal Power Plant

At present 54.09% or 93918.38 MW (Data Source CEA, as on 31/03/2011) of total electricity production in India is from Coal Based Thermal Power Station. A coal based thermal power plant converts the chemical energy of the coal into electrical energy. This is achieved by raising the steam in the boilers, expanding it through the turbine and coupling the turbines to the generators which converts mechanical energy into electrical energy.

Introductory overview

In a coal based power plant coal is transported from coal mines to the power plant by railway in wagons or in a merry-go-round system. Coal is unloaded from the wagons to a moving underground conveyor belt. This coal from the mines is of no uniform size. So it is taken to the Crusher house and crushed to a size of 20mm. From the crusher house the coal is either stored in dead storage( generally 40 days coal supply) which serves as coal supply in case of coal supply bottleneck or to the live storage(8 hours coal supply) in the raw coal bunker in the boiler house. Raw coal from the raw coal bunker is supplied to the Coal Mills by a Raw Coal Feeder. The Coal Mills or pulverizer pulverizes the coal to 200 mesh size. The powdered coal from the coal mills is carried to the boiler in coal pipes by high pressure hot air. The pulverized coal air mixture is burnt in the boiler in the combustion zone.
Generally in modern boilers tangential firing system is used i.e. the coal nozzles/ guns form tangent to a circle. The temperature in fire ball is of the order of 1300 deg.C. The boiler is a water tube boiler hanging from the top. Water is converted to steam in the boiler and steam is separated from water in the boiler Drum. The saturated steam from the boiler drum is taken to the Low Temperature Superheater, Platen Superheater and Final Superheater respectively for superheating. The superheated steam from the final superheater is taken to the High Pressure Steam Turbine (HPT). In the HPT the steam pressure is utilized to rotate the turbine and the resultant is rotational energy. From the HPT the out coming steam is taken to the Reheater in the boiler to increase its temperature as the steam becomes wet at the HPT outlet. After reheating this steam is taken to the Intermediate Pressure Turbine (IPT) and then to the Low Pressure Turbine (LPT). The outlet of the LPT is sent to the condenser for condensing back to water by a cooling water system. This condensed water is collected in the Hotwell and is again sent to the boiler in a closed cycle. The rotational energy imparted to the turbine by high pressure steam is converted to electrical energy in the Generator.

Diagram of a typical coal-fired thermal power station


Coal based thermal power plant works on the principal of Modified Rankine Cycle.

Components of Coal Fired Thermal Power Station:

  • Coal Preparation

                        i)Fuel preparation system: In coal-fired power stations, the raw feed coal from the coal storage area is first crushed into small                         pieces and then conveyed to the coal feed hoppers at the boilers. The coal is next pulverized into a very fine powder, so that                               coal will undergo complete combustion during combustion process.

                                   ** pulverizer is a mechanical device for the grinding of many different types of materials. For example, they
                                         are used to pulverize coal for combustion in the steam-generating furnaces of fossil fuel power plants.
                                         Types of Pulverisers: Ball and Tube mills; Ring and Ball mills; MPS; Ball mill; Demolition.
                       ii)Dryers:  they are used in order to remove the excess moisture from coal mainly wetted during transport. As the                                                      presence of moisture will result in fall in efficiency due to incomplete combustion and also result in CO emission. 
                        iii)Magnetic separators: coal which is brought may contain iron particles. These iron particles may result in wear and tear. The iron particles may include bolts, nuts wire fish plates etc. so these are unwanted and so are removed with the help of                                          magnetic separators.
The coal we finally get after these above process are transferred to the storage site.
Purpose of fuel storage is two –
  •  Fuel storage is insurance from failure of normal operating supplies to arrive.
  • Storage permits some choice of the date of purchase, allowing the purchaser to take advantage of seasonal market conditions. Storage of coal is primarily a matter of protection against the coal strikes, failure of the transportation system & general coal shortages.


There are two types of storage:

  1. Live Storage(boiler room storage): storage from which coal may be withdrawn to supply combustion equipment with little or no remanding is live storage. This storage consists of about 24 to 30 hrs. of coal requirements of the plant and is usually a covered storage in the plant near the boiler furnace. The live storage can be provided with bunkers & coal bins. Bunkers are enough capacity to store the requisite of coal. From bunkers coal is transferred to the boiler grates.
  2. Dead storage- stored for future use. Mainly it is for longer period of time, and it is also mandatory to keep a backup of fuel for specified amount of days depending on the reputation of the company and its connectivity.There are many forms of storage some of which are –
    1. Stacking the coal in heaps over available open ground areas.
    2. As in (I). But placed under cover or alternatively in bunkers.
    3. Allocating special areas & surrounding these with high reinforced concerted retaking walls.
  • Boiler and auxiliaries

A Boiler or steam generator essentially is a container into which water can be fed and steam can be taken out at desired pressure, temperature and flow. This calls for application of heat on the container. For that the boiler should have a facility to burn a fuel and release the heat. The functions of a boiler thus can be stated as:-

  1. To convert chemical energy of the fuel into heat energy
  2. To transfer this heat energy to water for evaporation as well to steam for superheating.

The basic components of Boiler are: -

  1. Furnace and Burners
  2. Steam and Superheating

a. Low temperature superheater

b. Platen superheater

c. Final superheater

  • Economiser

It is located below the LPSH in the boiler and above pre heater. It is there to improve the efficiency of boiler by extracting heat from flue gases to heat water and send it to boiler drum.

Advantages of Economiser include

1) Fuel economy: – used to save fuel and increase overall efficiency of boiler plant.

2) Reducing size of boiler: – as the feed water is preheated in the economiser and enter boiler tube at elevated temperature. The heat transfer area required for evaporation reduced considerably.

  • Air Preheater

The heat carried out with the flue gases coming out of economiser are further utilized for preheating the air before supplying to the combustion chamber. It is a necessary equipment for supply of hot air for drying the coal in pulverized fuel systems to facilitate grinding and satisfactory combustion of fuel in the furnace

  •  Reheater

Power plant furnaces may have a reheater section containing tubes heated by hot flue gases outside the tubes. Exhaust steam from the high pressure turbine is rerouted to go inside the reheater tubes to pickup more energy to go drive intermediate or lower pressure turbines.

  • Steam turbines

Steam turbines have been used predominantly as prime mover in all thermal power stations. The steam turbines are mainly divided into two groups: -

  1. Impulse turbine
  2. Impulse-reaction turbine

The turbine generator consists of a series of steam turbines interconnected to each other and a generator on a common shaft. There is a high pressure turbine at one end, followed by an intermediate pressure turbine, two low pressure turbines, and the generator. The steam at high temperature (536 ‘c to 540 ‘c) and pressure (140 to 170 kg/cm2) is expanded in the turbine.

  • Condenser

The condenser condenses the steam from the exhaust of the turbine into liquid to allow it to be pumped. If the condenser can be made cooler, the pressure of the exhaust steam is reduced and efficiency of the cycle increases. The functions of a condenser are:-

1) To provide lowest economic heat rejection temperature for steam.

2) To convert exhaust steam to water for reserve thus saving on feed water requirement.

3)  To introduce make up water.

We normally use surface condenser although there is one direct contact condenser as well. In direct contact type exhaust steam is mixed with directly with D.M cooling water.

  • Boiler feed pump

Boiler feed pump is a multi stage pump provided for pumping feed water to economiser. BFP is the biggest auxiliary equipment after Boiler and Turbine. It consumes about 4 to 5 % of total electricity generation.

  • Cooling tower

The cooling tower is a semi-enclosed device for evaporative cooling of water by contact with air. The hot water coming out from the condenser is fed to the tower on the top and allowed to tickle in form of thin sheets or drops. The air flows from bottom of the tower or perpendicular to the direction of water flow and then exhausts to the atmosphere after effective cooling.

The cooling towers are of four types: -

1. Natural Draft cooling tower

2. Forced Draft cooling tower

3. Induced Draft cooling tower

4. Balanced Draft cooling tower

  • Fan or draught system

In a boiler it is essential to supply a controlled amount of air to the furnace for effective combustion of fuel and to evacuate hot gases formed in the furnace through the various heat transfer area of the boiler. This can be done by using a chimney or mechanical device such as fans which acts as pump.

i) Natural draught 

When the required flow of air and flue gas through a boiler can be obtained by the stack (chimney) alone, the system is called natural draught. When the gas within the stack is hot, its specific weight will be less than the cool air outside; therefore the unit pressure at the base of stack resulting from weight of the column of hot gas within the stack will be less than the column of extreme cool air. The difference in the pressure will cause a flow of gas through opening in base of stack. Also the chimney is form of nozzle, so the pressure at top is very small and gases flow from high pressure to low pressure at the top.

ii) Mechanized draught

There are 3 types of mechanized draught systems

1)                  Forced draught system

2)                  Induced draught system

3)                  Balanced draught system

Forced draught: – In this system a fan called Forced draught fan is installed at the inlet of the boiler. This fan forces the atmospheric air through the boiler furnace and pushes out the hot gases from the furnace through superheater, reheater, economiser and air heater to stacks.

Induced draught: – Here a fan called ID fan is provided at the outlet of boiler, that is, just before the chimney. This fan sucks hot gases from the furnace through the superheaters, economiser, reheater and discharges gas into the chimney. This results in the furnace pressure lower than atmosphere and affects the flow of air from outside to the furnace.

Balanced draught:-In this system both FD fan and ID fan are provided. The FD fan is utilized to draw control quantity of air from atmosphere and force the same into furnace. The ID fan sucks the product of combustion from furnace and discharges into chimney. The point where draught is zero is called balancing point.


  • Ash handling system

The disposal of ash from a large capacity power station is of same importance as ash is produced in large quantities. Ash handling is a major problem.

i) Manual handling: While barrows are used for this. The ash is collected directly through the ash outlet door from the boiler into the container from manually.

ii) Mechanical handling: Mechanical equipment is used for ash disposal, mainly bucket elevator, belt conveyer. Ash generated is 20% in the form of bottom ash and next 80% through flue gases, so called Fly ash and collected in ESP.


iii) Electrostatic precipitator: From air preheater this flue gases (mixed with ash) goes to ESP. The precipitator has plate banks (A-F) which are insulated from each other between which the flue gases are made to pass. The dust particles are ionized and attracted by charged electrodes. The electrodes are maintained at 60KV.Hammering is done to the plates so that fly ash comes down and collect at the bottom. The fly ash is dry form is used in cement manufacture.


  • Generator

Generator or Alternator is the electrical end of a turbo-generator set. It is generally known as the piece of equipment that converts the mechanical energy of turbine into electricity. The generation of electricity is based on the principle of electromagnetic induction.

Advantages of coal based thermal Power Plant

  • They can respond to rapidly changing loads without difficulty
  • A portion of the steam generated can be used as a process steam in different industries
  • Steam engines and turbines can work under 25 % of overload continuously
  • Fuel used is cheaper
  • Cheaper in production cost in comparison with that of diesel power stations

Disadvantages of coal based thermal Power Plant

  • Maintenance and operating costs are high
  • Long time required for erection and putting into  action
  • A large quantity of water is required
  • Great difficulty experienced in coal handling
  • Presence of troubles due to smoke and heat in the plant
  • Unavailability of good quality coal
  • Maximum of  heat  energy lost
  • Problem of ash removing

Major Thermal Power Plants in India

Power station Operator Location District State Sector Region Unit wise Capacity Installed Capacity
Rajghat Power Station IPGCL Delhi Delhi NCT Delhi State Northern 2 x 67.5 135.00
Deenbandhu Chhotu Ram Thermal Power Station HPGCL Yamunanagar Yamunanagar Haryana State Northern 2 x 300 600.00
Panipat Thermal Power Station I HPGCL Assan Panipat Haryana State Northern 4 x 110 440.00
Panipat Thermal Power Station II HPGCL Assan Panipat Haryana State Northern 2 x 210, 2 x 250 920.00
Faridabad Thermal Power Station HPGCL Faridabad Faridabad Haryana State Northern 1 x 55 55.00
Rajiv Gandhi Thermal Power Station HPGCL Khedar Hisar Haryana State Northern 1 x 600 600.00
Guru Nanak dev TP PSPCL Bathinda Bathinda Punjab State Northern 4 x 110 440.00
Guru Hargobind TP PSPCL Lehra Mohabbat Bathinda Punjab State Northern 2 x 210, 2 x 250 920.00
Guru Gobind Singh Super Thermal Power Plant PSPCL Ghanauli Rupnagar Punjab State Northern 6 x 210 1260.00
Suratgarh Super Thermal Power Plant RVUNL Suratgarh Sri Ganganagar Rajasthan State Northern 6 x 250 1500.00
Kota Super Thermal Power Plant RVUNL Kota Kota Rajasthan State Northern 2 x 110, 3 x 210, 2 x 195 1240.00
Giral Lignite Power Plant RVUNL Thumbli Barmer Rajasthan State Northern 2 x 125 250.00
Chhabra Thermal Power Plant RVUNL Mothipura Baran Rajasthan State Northern 2 x 250 500.00
Orba Thermal Power Station UPRVUNL Obra Sonebhadra Uttar Pradesh State Northern 1 x 40, 3 x 94, 5 x 200 1,322.00
Anpara Thermal Power Station UPRVUNL Anpara Sonebhadra Uttar Pradesh State Northern 3 x 210, 2 x 500 1630.00
Panki Thermal Power Station UPRVUNL Panki Kanpur Uttar Pradesh State Northern 2 x 105 210.00
Parichha Thermal Power Station UPRVUNL Parichha Jhansi Uttar Pradesh State Northern 2 x 110, 2 x 210 640.00
Harduaganj Thermal Power Station UPRVUNL Harduaganj Aligarh Uttar Pradesh State Northern 1 x 55, 1 x 60, 1 x 105 220.00
Badarpur Thermal power plant NTPC Badarpur New Delhi NCT Delhi Central Northern 3 x 95, 2 x 210 705.00
Singrauli Super Thermal Power Station NTPC Shaktinagar Sonebhadra Uttar Pradesh Central Northern 5 x 200, 2 x 500 2000.00
Barsingsar Lignite Power Plant NLC Barsingsar Bikaner Rajasthan Central Northern 1 x 125 125.00
Rihand Thermal Power Station NTPC Rihand Nagar Sonebhadra Uttar Pradesh Central Northern 4 x 500 2000.00
National Capital Thermal Power Plant NTPC Vidyutnagar Gautam Budh Nagar Uttar Pradesh Central Northern 4 x 210, 2 x 490 1820.00
Feroj Gandhi Unchahar Thermal Power Plant NTPC Unchahar Raebareli Uttar Pradesh Central Northern 5 x 210 1050.00
Tanda Thermal Power Plant NTPC Vidyutnagar Ambedkar Nagar Uttar Pradesh Central Northern 4 x 110 440.00
Raj west Lignite Power Plant JSW Barmer Barmer Rajasthan Private Northern 1 x 135 135.00
VS Lignite Power Plant KSK Gurha Bikaner Rajasthan Private Northern 1 x 125 125.00
Rosa Thermal Power Plant Stage I Reliance Rosa Shahjahanpur Uttar Pradesh Private Northern 2 x 300 600.00
Northern 28 104
Ukai Thermal Power Station GSECL Ukai dam Tapi Gujarat State Western 2 x 120, 2 x 200, 1 x 210 850
Gandhinagar Thermal Power Station GSECL Gandhinagar Gandhinagar Gujarat State Western 2 x 120, 3 x 210 870
Wanakbori Thermal Power Station GSECL Wanakbori Kheda Gujarat State Western 7 x 210 1470
Sikka Thermal Power Station GSECL Jamnagar Jamnagar Gujarat State Western 2 x 120 240
Dhuvaran Thermal Power Station GSECL Khambhat Anand Gujarat State Western 2 x 110 220
Kutch Thermal Power Station GSECL Panandhro Kutch Gujarat State Western 2 x 70, 2 x 75 290
Surat Thermal Power Station GIPCL Nani Naroli Surat Gujarat State Western 4 x 125 500
Akrimota Thermal Power Station GMDC Chher Nani Kutch Gujarat State Western 2 x 125 250
Satpura Thermal Power Station MPPGCL Sarni Betul Madhya Pradesh State Western 5 x 37.5, 1 x 200, 3 x 210 1017.5
Sanjay Gandhi Thermal Power Station MPPGCL Birsinghpur Umaria Madhya Pradesh State Western 4 x 210, 1 x 500 1340
Amarkantak Thermal Power Station MPPGCL Chachai Anuppur Madhya Pradesh State Western 2 x 120, 1 x 210 450
Korba East Thermal Power Plant CSPGCL Korba Chattisgarh State Western 4 x 50, 2 x 120 440
Dr Shyama Prasad Mukharjee Thermal Power Plant CSPGCL Korba Chattisgarh State Western 2 x 250 500
Korba West Hasdeo Thermal Power Plant CSPGCL Korba Chattisgarh State Western 4 x 210 840
Koradi Thermal Power Station MAHAGENCO Koradi Nagpur Maharastra State Western 4 x 105, 1 x 200, 2 x 210 1040
Nashik Thermal Power Station MAHAGENCO Nashik Nashik Maharastra State Western 2 x 125, 3 x 210 880
Bhusawal Thermal Power Station MAHAGENCO Deepnagar Jalgaon Maharastra State Western 1 x 50, 2 x 210 470
Paras Thermal Power Station MAHAGENCO Vidyutnagar Akola Maharastra State Western 1 x 55, 2 x 250 555
Parli Thermal Power Station MAHAGENCO Parli-Vaijnath Beed Maharastra State Western 2 x 20, 3 x 210, 2 x 250 1170
Kaparkheda Thermal Power Station MAHAGENCO Kaparkheda Nagpur Maharastra State Western 4 x 210 840
Chandrapur Super Thermal Power Station MAHAGENCO Chandrapur Chandrapur Maharastra State Western 4 x 210, 3 x 500 2340
Vindhyachal Super Thermal Power Station NTPC Vidhya Nagar Sidhi Madhya Pradesh Central Western 6 x 210, 4 x 500 3260
Korba Super Thermal Power Plant NTPC Jamani Palli Korba Chattisgarh Central Western 3 x 200, 3 x 500 2100
Sipat Thermal Power Plant NTPC Sipat Bilaspur Chattisgarh Central Western 2 x 500 1000
Bhilai Expansion Power Plant NTPC-SAIL(JV) Bhilai Durg Chattisgarh Central Western 2 x 250 500
Sabarmati Thermal Power Station Torrent Ahamadabad Gujarat Private Western 1 x 60, 1 x 120, 2 x 110 400
Mundra Thermal Power Station Adani Mundra Kutch Gujarat Private Western 2 x 330 660
Jindal Megha Power Plant jindal Tamnar Raigarh Chattisgarh Private Western 4 x 250 1000
Lanco Amarkantak Power Plant Lanco Pathadi Korba Chattisgarh Private Western 2 x 300 600
Trombay Thermal Power Station Tata Trombay Mumbai Maharastra Private Western 1 x 150, 2 x 500, 1 x 250 1400
Dahanu Thermal Power Station Reliance Dahanu Thane Maharastra Private Western 2 x 250 500
Wardha Warora Power Station KSK Warora Chandrapur Maharastra Private Western 1 x 135 135
Western 32 135
Ramagundam B Thermal Power Station APGENCO Ramagundam Karimnagar Andhra Pradesh State Southern 1 x 62.5 62.5
Kothagudem Thermal Power Station APGENCO Paloncha Khammam Andhra Pradesh State Southern 4 x 60, 4 x 120 720
Kothagudem Thermal Power Station V Stage APGENCO Paloncha Khammam Andhra Pradesh State Southern 2 x 250 500
Dr Narla Tatarao TPS APGENCO Ibrahimpatnam Krishna Andhra Pradesh State Southern 6 x 210, 1 x 500 1760
Rayalaseema Thermal Power Station APGENCO Cuddapah YSR Andhra Pradesh State Southern 4 x 210 840
Kakatiya Thermal Power Station APGENCO Chelpur Warangal Andhra Pradesh State Southern 1 x 500 500
Raichur Thermal Power Station KPCL Raichur Raichur Karnataka State Southern 7 x 210, 1 x 250 1720
Bellary Thermal Power Station KPCL Kudatini Bellary Karnataka State Southern 1 x 500 500
North Chennai Thermal Power Station TNEB Athipattu Thiruvallore Tamilnadu State Southern 3 x 210 630
Ennore Thermal Power Station TNEB Ennore Chennai Tamilnadu State Southern 2 x 60, 3 x 110 450
Mettur Thermal Power Station TNEB Metturdam Salem Tamilnadu State Southern 4 x 210 840
Tuticorin Thermal Power Station TNEB Tuticorin Tuticorin Tamilnadu State Southern 5 x 210 1050
NTPC Ramagundam NTPC Jyothi Nagar Karimnagar Andhra Pradesh Central Southern 3 x 200, 4 x 500 2600
Simhadri Super Thermal Power Plant NTPC Simhadri Visakhapatnam Andhra Pradesh Central Southern 2 x 500 1000
Neyveli Thermal Power Station – I NLC Neyveli Cuddalore Tamilnadu Central Southern 6 x 50, 3 x 100, 2 x 210 1020
Neyveli Thermal Power Station – II NLC Neyveli Cuddalore Tamilnadu Central Southern 7 x 210 1470
JSW EL-SBU-I Power Plant JSW Vijayanagar Bellary Karnataka Private Southern 2 x 130 260
JSW EL-SBU-II Power Plant JSW Vijayanagar Bellary Karnataka Private Southern 2 x 300 600
Udupi Thermal Power Plant Lanco Nandikoor Udupi Karnataka Private Southern 1 x 600 600
Neyveli Zero Unit STPS Neyveli Cuddalore Tamilnadu Private Southern 1 x 250 250
Southern 20 83
Barauni Thermal Power Station BSEB Barauni Begusarai Bihar State Eastern 2 x 50, 2 x 105 310
Muzafferpur Thermal Power Station KBUCL Kanti Muzaffarpur Bihar State Eastern 2 x 110 220
Patratu Thermal Power Station JSEB Patratu Jharkhand State Eastern 4 x 40, 2 x 90, 2 x 105, 2 x 110 770
Tenughat Thermal Power Station TVNL Jharkhand State Eastern 2 x 210 420
Kolaghat Thermal Power Station WBPDCL Mecheda East Midnapore West Bengal State Eastern 6 x 210 1260
Bakreshwar Thermal Power Station WBPDCL Suri Birbhum West Bengal State Eastern 5 x 210 1050
Bandel Thermal Power Station WBPDCL Hooghly West Bengal State Eastern 4 x 60, 1 x 210 450
Santaldih Thermal Power Station WBPDCL Purulia West Bengal State Eastern 4 x 120, 1 x 250 730
Sagardigi Thermal Power Station WBPDCL Monigram Murshidabad West Bengal State Eastern 2 x 300 600
Durgapur Thermal Power Plant DPL Durgapur Bardhaman West Bengal State Eastern 2 x 30, 1 x 70, 2 x 75, 1 x 110, 1 x 300 690
IB Thermal Power Plant OPGCL Banharpali Jharsuguda Orissa State Eastern 8 x 120 960
Captive Power Plant NALCO Angul Angul Orissa State Eastern 2 x 210 420
Kahalgaon Super Thermal Power Station NTPC Kahalgaon Bhagalpur Bihar Central Eastern 4 x 210, 3 x 500 2340
Bokaro Thermal Power Station B DVC Bokaro Bokaro Jharkhand Central Eastern 3 x 210 630
Chandrapura Thermal Power Station DVC Chandrapura Bokaro Jharkhand Central Eastern 3 x 130, 3 x 120, 2 x 250 1250
Farakka Super Thermal Power Station NTPC Nagarun Murshidabad West Bengal Central Eastern 3 x 200, 2 x 500 1600
Durgapur Thermal Power Station DVC Durgapur Bardhaman West Bengal Central Eastern 1 x 140, 1 x 210 350
Mejia Thermal Power Station DVC Durlavpur Bankura West Bengal Central Eastern 4 x 210, 2 x 250 1340
Talcher Super Thermal Power Station NTPC Kaniha Angul Orissa Central Eastern 6 x 500 3000
Talcher Thermal Power Station NTPC Talcher Angul Orissa Central Eastern 4x 60, 2 x 110 460
Budge Budge Thermal Power Plant CESC Achipur South 24 Paraganas West Bengal Private Eastern 3 x 250 750
Titagarh Thermal Power Station CESC North 24 Paraganas West Bengal Private Eastern 4 x 60 240
CESC Southern Generating Station CESC West Bengal Private Eastern 3 x 67.5 135
Jojobera TPP Tata Jojobera Jamshedpur Jharkhand Private Eastern 3 x 120,1×67.5 427.5
Jharsuguda TPP Vedanta Jharsuguda Jharsuguda Orisa Private IPP Eastern 4×600 2400
Vedanta Aluminim CPP Vedanta Jharsuguda Jharsuguda Orisa Private CPP Eastern 9×135 1215
Eastern 22 104
Total 102 426

81 Responses to Thermal Power Plant

  1. Neeraj Kumar says:

    We hereby require thermal power companies contact details for transportation of black oil by road tankers
    With Rergars
    Neeraj (9999673105)

  2. Monali Shah says:

    Dear Sir,

    Kind request to please share installed capacities and utilisation or PLF of all Thermal power plants in India…


    What would be the reason for their being located at those place ect. Kindly share.

  4. Sandeep Maheshwari says:

    I would like to know what capacity of booler is required for 10 mw thermal power plant.
    Sandeep maheshwari
    +91 9351549294

  5. Sandeep Maheshwari says:

    I would like what capacity of boiler needed for 10 mw power plant

  6. AMIT JAIN says:

    SUBJECT- SCALEBAN:: History created at NTPC by installing our patented product in 500MW power plant to achieve ZERO DISCHARGE WITH ZERO SCALING in cooling water system.

    Dear Sir,

    We are proud in all our modesty to inform your good self that we have successfully commissioned the ‘SCALEBAN’ in the 500MW power plant of one of the leading and most reputed power producer of the world i.e. NTPC at their Dadri (U.P.) unit (Please find attached photographs for the same). The installation in the other 500MW power plant will be done in the month of October 2014 during the proposed maintenance shutdown of the concerned power plant.

    You will be pleased to note that M/s NTPC limited have placed an order for the supply of Scaleban equipment for the condenser and auxiliary system of 500MW X 2Nos power plant at Dadri (U.P.) on 06thNovember 2013.

    M/s NTPC limited has installed Scaleban equipment in their power plant with an objective to operate the cooling tower at a very high COC level of 15 with zero scaling in condenser and other heat exchangers. Currently, they are operating the cooling tower at 2.5COC and yet facing a severe problem of scale deposition in the system.

    This is the biggest achievement in the history of Scaleban equipment, as the most reputed power producer of the country has joined hands with us to establish the sustainable, most efficient and cost effective solution for zero discharge with zero scaling. NTPC, after gaining confidence in our technology through in depth study of theoretical aspects and in situ analysis of the performance of the equipment at our client site has joined us in our mission to conserve water with zero scaling.

    The prevailing situation is quite alarming and dictates to the power industry to switch over to the sustainable & efficient means of the water conservation with zero scaling to achieve zero liquid discharge.

    The industry is very well familiar with the prevalent losses in productivity and profitability due to zero discharge norms and scale deposition in condensers & other heat ex-changers.

    It is evident that conventional methods for stopping scale deposition in heat ex-changer surfaces are not efficient enough to target this specific problem of the industry. Also the conventional methods available to achieve zero liquid discharge (ZLD) are very costly to establish and operate and so we are encouraged to present our revolutionary technology to help the industry stakeholder to get Scale free condenser/heat ex-changer and to design most efficient, cost effective and sustainable solution for Zero Liquid Discharge (ZLD).

    The cooling tower can be operated at very high COC of 15 to 20 as against 3 to 5 of conventional methods. Operations at higher COC will lead to minimization of blow down to almost negligible. There is lot of water conservation involved with use of Scaleban Technology. Practically, uses of Scaleban equipment can conserve water to the tune of more than 25% to 30%. Consumption of fresh water can be brought down by 100% as RO reject and ETP treated water can be directly utilized in cooling tower as make up water instead of soft water. Thus Scaleban has initiated a march towards establishment of a cost effective, most efficient and sustainable solution for the achievement of zero liquid discharge with water conservation and zero scaling.

    Most importantly, Scaleban provides guaranteed zero scale condition in the condenser and other heat exchangers for a period of 20 years without use of Soft water and anti scalant chemicals. Scale free condensers leads to constant vacuum and specific steam consumption maintained in specified ideal range.

    The product is manufactured by State of the Art technology which keeps the product a step ahead of all the other kind of water treatment technologies available in market.

    Scaleban with no reject of water is the maintenance free mechanical equipment and does not require any energy input for its operation. We have proved ourselves in the conservation of water to the tune of more than 25% and also in increasing industry productivity and profitability for our (150+) valuable clients across India.

    Both, water and energy are the main area of concern for the industries now a days and no one in the world is able to create them; “conserving them is the only way to create them”. Scaleban can proudly claim the maximum conservation of water and energy on account of use of this revolutionary equipment as compared with any other technology available in the world.

    Scaleban is awaiting a Patent Number from Office of Controller General of Patents, Designs and Trademarks (Intellectual Property India), Mumbai, Government of India, pending our application number 2335/MUM/2009 dated 7th October 2009.

  7. swAMY says:


    • says:

      Dear Sir,

      Request you to please send us more details if you have any to add into the list.


  8. V KARTHIKEYAN says:

    Dear sir,
    The above the comments,and information are use full,i need power plant related updates and discussion and technical knowledge sharing groups mail id or technical persons mail id.
    please do needfull.

  9. Daryosh Tabesh says:

    Dear Sir,

    I am Daryosh Tabesh from Afghanistan currently doing my masters with TERI University new delhi. I am writing a report on industrial water use efficiency in India. I have a questionnaire of 2 pages I want to have an interview with 5 to 10 thermal power plant in Deli or nearby places if you can help me please.

    Thanking you in Advance,
    Phone: 09873751444

  10. Dear Sir,

    We are Authorized retrofitters of woodward Electronic Governor for Steam Turbines.

    Many of the older machines in the power plants will have only Hydraulic Governors. We can convert them to Electronic Governors which has a lot of advantages.

    We can conduct a seminar to scuh companies which may require our services. Can you please help us.


  11. Yogesh d. mane says:

    What type of coal is used in thermal power plant?

  12. deepankar bhilawe says:

    dear sir , presently i am working on geothermal on company as a geothermal engineer have any vacancy for geothermal engineer, basically i am from nagpur so koradi is near place from my place .

  13. avinash kumar says:

    details of power jobs send if occure

  14. Patel MitulKumar KantiBhai says:

    dhuvaran tharemal power palnt in gujarat charotar hart


  15. jeevendra gupta says:

    Dear Sir,

    Please send us the list of thermal power plants in india updated in pdf or Excel Format.
    we are organized an exhibition about Bricks Industry,

    It will be very helpfull to us if you provide the details with contact persons also.

    Thanks and Regards

  16. Ketan Patel says:

    Let me know CFBC power plant in INDIA with capacity & OEM of plant As we are manufacturer of Bed Nozzle & wish to register as vendor

  17. Anil Yadav says:

    Dear All,

    Will someone help me to get the spares requirement in thermal power plants. I will be thankful.

    mail id:

    Anil Yadav

  18. I am working as a power consultant in coimbatore,Tamilnadu.i need power for my client in tamilnadu.How can i get power generation companies list with details? If anyone in power sector,you can call me at 0 80127 89404,8508885788.mail :

    • says:

      Dear Mansih,

      You can contact to two exchange for list of Member Generators and also can contact power traders

  19. Ahmar says:

    If the power requirement of a factory is x MW. What should be the size of the CPP??

  20. we require contact mail id of all major plants of india to introduce ourselves manufacturing various power plant spares

  21. Please sent your detailed company profile for further needful.

  22. Dear Sir,

    Please send us the list of thermal power plants in india updated in pdf or Excel Format.
    we are organized an exhibition about Bricks Industry,

    It will be very helpfull to us if you provide the details with contact persons also.

    Thanks and Regards
    B Niren
    +91 9825037133

  23. Manoj Kumar says:

    Dear Sir,

    Please send us the list of thermal power plants in india updated in pdf or Excel Format.
    we are the service provider and Spare parts providers for Gravimetric coal feed systems.

    It will be very helpfull to us if you provide the details with contact persons also.

    Thanks and Regards
    Manoj Kumar B
    +91 97437 42403

  24. Anil Yadav says:

    Dear All,

    Please let me know the upcoming thermal power plants in India whose BTG contract is awarded or yet to be awarded.

    Thanking you

  25. Nawin Kumar says:


    Can Where can I get the current price of HFO, LDO and differnet types of Coal…


  26. Rao.T.N says:

    Does the CFBC boiler operated lignite power plants gives >= to coal based plants ? If, so, what is the average PLF of lignite plants in India.

  27. Sir,
    We are having a 2X150 MW IPP unit at Beawar, Rajashthan. Its name is Shree Mega Power, unit of Shree Cement Group.

    Kindly update the same at your website.


  28. Temperature level between in FD fan & chimney ?

  29. priyanka prakash bhosale says:

    sir i have information about adv.&disadv. of power plant in gujarat

  30. RSMANI says:

    what is the approximate height of a chimney at Thermal power stations?

  31. anupriya says:

    sir i have to know whether can we use any other energy instead of coal ?

    • says:

      Yes, We can we can use GAs, Diesel, Solar Power, Hydro Power, Wind Power , Nuclear, Bio-mass and many more

  32. Sheena Singh says:

    Can Coal conveyors be underground also? If so,what has to be the precautionary measures one has to keep in mind while constructing and maintaining underground coal conveyors?

  33. Garima Vats says:

    Dear Sir,

    I want to know if there is any database that lists down the cooling technology (open loop or closed loop) and technology for steam generation (Subcritical, super critical, ultra super critical etc) in India.

    Garima Vats

  34. manoj says:


  35. suraj says:


  36. A. Bhattacharjee says:

    where can I get the following information:
    1. name of the coal source & type used for the thermal power plants located in West Bengal;
    2. comparision of the burning facilities of the plants located in West Bengal, and
    3. the criterion for magnetic separation;


  37. Kindly intimate per day consumption of coal in Gandhi Nagar and Wanakbori thermal Power stations during 2011-2012 and the % aveage Carbon in coal. Please make it convemeinet to routinely m,ention the amount of coal consumed each rear at each thermal power station and the percent carbon in coal.
    Kuldeep Chandra

    • says:

      Dear Mr. Chandra,

      You can find the same info either on CEA site or on the site Gujarat SLDC site. However,%of Carbon or ash in the coal used can only be given by the plant. from its side try to provide you latest info but getting specific info about plant is not easy.

  38. j vasanth kumar says:


  39. sai charan says:

    the explanation is super

  40. Ankur Kumar says:

    What’s the current installed generation capacity?Kindly inform me.

  41. Dr.K.Ramalingam says:

    Great work. Data to update and add projects ongoing.

  42. rajiv ranjan says:

    Mejia thermal power plant of DVC is a major power plant in India.

  43. sanjay kanani says:

    dear sir.,
    I want to know about which type of burner used in ukai thermal power plant in boiler
    and which type of burning is generate in furnance.

  44. This is very useful information, can any body share the list of upcoming plants in india
    With best regards,

    Somnath Shingare
    Cell: +91-9881247380

  45. Mahasvin says:

    Hi, This information is very helpful thanks,
    Is it possible to get list of upcoming thermal power plant within India.?

  46. Rajeev says:

    Dear Friends,
    It’s not updated data, Dear team please update the figer of Major Thermal Power Plants in India.

  47. S.kumar says:

    dear sumit kumar this information is too good for thermal power station. this is very much helpful for me and i like very much.

  48. R K Jain says:

    Thermal efficiency of a thermal power plant is the ratio of electrical energy generated to the chemical energy of fuel consumed. For a subcritical plant it is below 42% for a new plant. What a plant is generating is the plant utilization factor. For a supercritical power plant the best thermal efficiency may be around 45-47%.

  49. Vaaimai says:

    Thanks. But I learnt that efficiency of thermal power plants are around 45% – 50%.

    • shivanshtyagi says:

      That is my bad, yes effieceincy of plant are 45-45% but that is thermal efficiency i.e how much coal energy is converted into the electric power.
      For thermal power plant there is a factor called Plant load Factor (PLF), so if a plant has installed capacity of 100 and it rums with PLF of 90% it will produce 90MWh of instantaneous power.
      On an average plf of plants are from 85-90%. Though some plants even run of PLF higher than 100% or say 1.

      • Vaaimai says:

        Thanks again. Do you have any idea of efficiency of nuclear power plants? If a 1000 MW nuclear reactor is installed, what will be the power output?

  50. Vaaimai says:

    What is the thermal efficiency of a thermal power plant? You said that Neyveli Thermal Power Station – II is producing 1470 MW of power. Whether it produces such amount of electricity or lesser than that? (say 60 % efficiency means 882 MW)

    • shivanshtyagi says:

      1470 is the installed capacity of the plant.Normally thermal power plants run on around 85-90% efficency.

  51. naveen ($onu) says:

    one of the most apt and brisk synopsys of a thermal power plant i have ever read. the two diagrams at the start of modified rankine cycle and the plant over view are the highlights. Great work sir. you have proved a valid point again that simple logics are more important than unrequired expertise. i would be very impressed if u could also add on super critical technology and once through boilers which use a seperator rather than the conventional circulation type boilers. also some some point missing are gland steam cooler and also a note on water technology. but all together great work.

    • shivanshtyagi says:

      Dear Naveen thanks for appreciation and suggestion. Well will you like to add all these suggestions to the site. If you want just send us the word file and the update will be done in your name on the main page.

  52. dixitpatel says:

    its very good detail………….

  53. Tanu Saxena says:

    Hey… gr8 info…
    Bt what is done in the power plants in order to treat flue gases?
    there is no mention of even any scrubber…do they even operate in any power plant?

  54. sruthin says:

    heyy gr88 workk sir…it ws realyy informative…spott onnn!!!

  55. Rizwan says:

    Very very good bhai, thanx a lot for a huge information.

  56. ABDUL JALIL says:

    Very nice one.

    Will you give the e-mail ID of Mr. SUMIT KUMAR please?

  57. ntpc rajghat close date is 15 june 2011 Is is true . send the name of company who took the whole scrapt of power plant

    • SUMIT KUMAR says:

      -The Delhi government is toying with the idea of permanently shutting down the Rajghat power plant close by june this year . The plant was earlier closed during the Commonwealth Games to remove the polluting unit in the heart of the city, and provide to residents a recreational area in its place.
      -The power station, situated in northeast Delhi, is one of the coal-based power plants of Indraprashta Power Generation Co. Ltd. (IPGCL) and has a generation capacity of 135 MW.
      -The power plant was commissioned in 1989 and supplied 135 MW. The Delhi State Industrial and Infrastructure Development Corporation (DSIIDC) had been asked to prepare a blueprint for “adaptive reuse”, and the agency presented its proposal in front of Chief Minister Sheila Dikshit and other officials on Wednesday. Dikshit has given in-principle approval to the project, which will require several clearances before it can begin. It will now be presented to the DDA and the DUAC. The project will take about 3 to 4 years to be implemented.
      -“Cost of the project is close to Rs 600 crore. It will be a self financing project as power plant equipment will be sold off and also the office space developed inside the plant will be rented out. Rajghat power plant is spread over 46 acre and as per the DSIIDC proposal, 26 acre will be turned into a city forest. The ash pond inside the plant will be enlarged and converted into a waterbody. The soil there is contaminated due to ash depositing here over the years so it would be cleaned before work starts.
      -The existing waterbody, which is used by the power plant, will be retained and redeveloped. The plan is to have the forest and the waterbody close to the Salimgarh Fort so that the area can be developed as a tourist spot. The area where coal handling was done will be converted into a garden and the main building of the plant will be converted into office space. “We will not touch the outer structure or the envelope of the building. The only changes will be in the interior of the building. Also, demolishing the existing structure will cost more than retrofitting it,” said the official. This is the second power plant site that the government is redeveloping – retrofitting of the Indraprastha Power plant is already underway. Its equipment has already been auctioned.

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