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SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
PROJECT FEASIBILITY REPORT
FOR PROPOSED 350MW
(2x150 + 1x50 MW)
THERMAL POWER PLANT
AT
Village : Kolam,
Tehsil : Tamnar
Distt : Raigarh (C.G.)
FOR
SARDA ENERGY & MINERALS LIMITED
(Formerly known as Raipur Alloys & Steel Limited)
Corporate Office
PHASE – 1, INDUSTRIAL GROWTH CENTRE,
SILTARA, RAIPUR (C.G.) 493 111
Ph: 07721- 403926
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
2
TABLE OF CONTENTS
CHAPTER-I 6
Executive Summary 6
1.1 Executive Summary 6
1.2 Project at a Glance 7
CHAPTER-II 10
Introduction of the project / Background information 10
2.1 Company Background 10
2.2 Management 10
2.3 Present Proposal 11
2.4 Cost of Project 12
2.5 Employment Generation (Direct and Indirect) due to Project 15
CHAPTER-III 16
Project Description 16
3.1 Type of project including interlinked and interdependent projects 16
3.2 Location (map showing general location, specific location, and project boundary and project site layout) with coordinates
16
3.3 Details of alternate sites considered and the basis of selecting the proposed site, particularly the environmental considerations gone into should be highlighted
20
3.4 Size or magnitude of operation 22
3.5 Project description with process details (a schematic diagram/flow chart showing the project layout, components of the project etc. should be given)
22
3.6 Raw material required along with estimated quantity, likely source, marketing area of final product/s, Mode of transport of raw material and Finished product.)
36
3.7 Resources optimization/recycling and reuse envisaged in the project, If any, should be briefly outlined.
37
3.8 Availability of water its source, Energy/Power requirement and source should be given
37
3.9 Quantity of wastes to be generated (liquid and solid) and scheme for their Management/disposal
40
3.10 Schematic representations of the feasibility drawing which give information of EIA purpose
43
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
3
CHAPTER-IV 44
Site Analysis 44
4.1 Connectivity 44
4.2 Land Form, Land use and Land ownership 44
4.3 Topography (along with map) 44
4.4 Existing land use pattern (agriculture, non-agriculture, forest, water
bodies (agriculture, non-agriculture, forest, water bodies (including area
under CRZ)), shortest distances from the periphery of the project to
periphery of the forests, national park, wild life sanctuary, eco sensitive
areas, water bodies (distance from the HFL of the river), CRZ.
46
4.5 Existing Infrastructure 46
4.6 Soil classification 46
4.7 Climatic data from secondary sources 47
4.8 Social Infrastructure available 48
CHAPTER-V 49
Planning Brief 49
5.1 Planning concept 49
5.2 Population Projection 49
5.3 Land use planning (breakup along with green belt etc.) 49
5.4 Assessment of Infrastructure Demand (physical & social). 50
5.5 Amenities/Facilities 50
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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CHAPTER-VI 51
Proposed Infrastructure 51
6.1 Industrial Area (Processing Area) 51
6.2 Residential Area (Non Processing Area) 51
6.3 Green Belt 51
6.4 Sewerage system 51
6.5 Industrial Waste Management 52
6.6 Solid Waste Management 52
6.7 Power Requirement & Supply/source 52
CHAPTER-VII 53
Rehabilitation and Resettlement (R & R) Plan 53
CHAPTER-VIII 54
Project Schedule and Cost Estimates 54
8.1 Likely date of start of construction and likely date of completion 54
8.2 Estimated project cost along with analysis in terms of economic viability of the project
58
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
5
CHAPTER-IX 59
Analysis of proposal (Final Recommendations) 59
9.1 Financial and social benefits with special emphasis on the benefits to the local people including tribal population, if any, in the area
59
CHAPTER-I
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
6
Executive Summary
1.1 Executive Summary
The basis of selection of major equipment including a review of technologies
and their evaluation is indicated in the report. The chapter in the report also
deals with the annual requirement of raw material.
The project report also covers the plant facilities and plant description for the
Power Plant.
The detailed process description of all the system has been covered in the
project report.
The chapter in the project report deals with the facilities provided for the plant
water system and other utilities such as fuel, compressed air, steam etc. The
pollution control measures proposed to be adopted in the Power Plant are also
described in the Chapter.
The chapter of the report also includes the organization and estimated
manpower for the proposed 350 MW Power Plant.
The estimates of capital cost, annual manufacturing expenses and the
financial analysis of the project are presented in the report.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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1.2 Comparison of benefits of (2x150 MW) units over (2x135 MW + 1x30 MW)
units.
It is proposed to install (2x150 MW +50 MW) units in place of earlier proposed
(2x135 MW +30MW +50 MW) units.
Reasons for installing the presently proposed (2x150 MW) units instead of
(2x135 MW +30MW) units are:
1. The inefficient, non re-heat type 30 MW unit has very High Turbine Heat Rate, Low Boiler Efficiency and hence Very High Specific Coal Consumption. Hence we have discarded the 30 MW Unit.
2. The proposed 150 MW units have lower Turbine Heat Rate, higher Boiler Efficiency and hence Lower Specific Coal Consumption in comparison to 135 MW units.
Thus the configuration with (2x150 MW +50 MW) units have following
advantages over the configuration with (2x135 MW +30MW +50 MW) units.
� Coal Consumption shall be reduced by about 1.87Lac MT/Year (7.42% ). � Total Ash produced shall be reduced by about 0.70 lac MT/Year (6.30% ).
� Exit Volume of Flue Gas shall be reduced by about 22127 NM3/hr. � Gross Pollution Load (Air) shall be reduced by about 8.76Tonnes/ year.
� Water consumption shall be reduced by about 0.51 MCM/Year (6%).
� Chimney Height for (2x150 MW) units shall be 220 Meters for better dispersion of emission.[ Chimney Height for (2x135 MW +30MW) units was kept at 180 Meters.]
(An approximate comparison of these factors is enclosed in the report).
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
COMPARISION OF PROJECT CONFIGURATIONS ( 2X135 MW + 1X30 MW+ 1X50 MW) Vs ( 2X150 MW + 1X50 MW)
DESCRIPTION Original Proposal Present Proposal PLANT CAPACITY 350 MW 350 MW
UNIT CONFIGURATION 1 X 30 MW
1 x 50 MW
2 X 135 MW
2 X 150 MW
1 x 50 MW
TURBINE HEAT RATE Kcal / Kwh 2600 2460 2390 2230 2460 BOILER EFFICIENCY % age 0.82 0.84 0.85 0.86 0.84 PLANT HEAT RATE 3095 2929 2812 2593 2929
Reduction
COAL CONSUMPTION ( 90% PLF) % age
Lac
MT
Specific Coal Consumption Kg/Kwh 0.9905 0.9371 0.8998 0.8298 0.9371 Unit wise Consumption Million MT / Year 0.2343 0.3694 1.92 1.9626 0.3694 TOTAL Million MT / Year 2.52 2.33 7.42% 1.87
Ash Produced
Fly Ash Million MT/ Year 0.90
0.84
6.30%
0.60
Bottom Ash Million MT/ Year 0.22 0.21 0.10
TOTAL Million MT/ Year 1.1 1.05 0.70
Water Consumption
Condenser Cooling Water Make up M3/Hr 130 187 755 820 187 Condenser Cooling Water Make up MCM/Year 1.02 1.47 5.95 6.46 1.47 TOTAL ( MCM / Year) 8.45 7.94
6.06% 0.51 MCM
Note :
1. Average Coal (Middling + Coal ) CV 3125 Kcal/kg
2. Average Ash Content in Coal 45%
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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3. Fly Ash to Bottom Ash Ratio 80:20
4.Make water requirement considered only for condenser make up , Balance requirement shall remain almost same.
Approximate Comparison of Gross Pollution Load (Air)
300 MW 300 MW
2 x 135
MW
1 x 30
MW
2 x 150
MW Diff.
A B C (A+B)-C
Flue Gas Exit Volume NM3/hr 1684800 209327 1872000 22127
Gross Pollution Load Air Kg/hr 84.24 10.47 93.60 1.11
Tonne/year 667.18 82.89 741.31 8.76
(Emission Level 50 mg/NM3)
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
CHAPTER-II
Introduction of the project / Background information
2.1 Identification of Project and Project Proponent
Sarda Energy & Minerals Ltd. (Formerly Chhattisgarh Electricity Company Ltd.),
Incorporated on 23rd January 1998, is a Public Limited Company. Power has been
the prime mover of growth in the Company. The Company had installed 20 MW coal
based thermal power plant, which commenced operations in the year 2001, gradually
the capacity of power plant has been increased to 81.5 MW. The Company also
installed five 9 MVA Submerged Arc Ferro alloys furnaces in phases to use captive
power from power Plant and to have maximum realization for the power generated
presently total capacity of plant is 45 MVA, which makes company the second largest
producer of manganese based Ferro Alloys in the country. The facilities are installed
at Industrial Growth Centre, Siltara, Raipur over an area of about 70 acres.
Chhattisgarh Electricity Company Ltd. has got merged with Raipur Alloys & Steel
Limited as per the orders of Hon’ble High Court of Chhattisgarh, Bilaspur dated 11th
May, 2007 & the name of Raipur Alloys & Steel Limited has also been Changed to
“Sarda Energy & Minerals Limited”(SEML) as per Fresh Certification of Incorporation
dated 2nd August 2007. Liberalization of economy by the Government, throwing open
for manufacturing of Iron and Steel including mining of iron ore, coal and other
related minerals to private entrepreneurs, provided an avenue for further growth in
this segment to SEML. Company is a industrial house to set up a modern integrated
steel plant at Siltara Industrial Estate, Raipur. The steel plant uses non-coking coal
for sponge iron production of 79,200 TPA, further it has expanded to 4,60,000 TPA
sponge iron production. Initially for meeting its requirement for 79,200 TPA sponge
iron, SEML obtained a mining lease for iron ore situated at Dongarbor in the
Rajnandgaon District, to produce 2.0 lakhs TPA. After expansion of sponge iron plant
to meet its requirement of iron ore, the company has increased production capacity
of Dongarbor Iron Ore Mine from 2.0 lakhs TPA to 15.0 lakhs TPA for extraction of
iron ore in the year 2007. Company has been allotted a captive coal block at Karwahi
near Tamnar, District- Raigarh, Chhattisgarh State to produce 1.2 Million TPA coal.
Company is proposed for installation of 1.1 Million TPA Integrated Steel Plant and 60
MW WHRB Power Plant at Siltara Industrial Growth Centre, Mandhar, Raipur.
2.2 Brief Description of nature of Project
Company proposes to install 350 MW power plant with a configuration of 2 x
150 MW + 1 x 50 MW. Coal for the proposed power project will made available
through company's own captive coal mines and middling generated from coal
Washery. The entire coal shall be transported through closed conveyor and
road from Mines / Washery to Plant site which is about 4.5 KM. Necessary
water required for power plant operation shall be taken from nearby Kelo
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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River. Power Generated shall be evacuated at 400 KV level by installing
dedicated power evacuation lines from plant to Tamnar Sub Station.
2.3 Need for the project and its importance to the country and or region
The Government of India’s 5th National Power Plan has envisaged a total installed
capacity of 2,12,000 MW as per the 16th Electric Power Survey. This capacity is to be
achieved by end of the 11th Plan, March 2012. The Government of India has
projected a GDP growth rate of about 7.4% based on power capacity to be achieved in
the 11th plan. To achieve a target of higher than 10,000 MW per annum, huge
investment in power sector is required and also the manufactures, contractors,
vendors and supporting will need to increase their capacities to meet this target of
power sector.
Presently state generating capacity in thermal and hydro power is about 1800 MW &
143 MW respectively. No. of villages are still to be electrified and presently there is a
power crises in the state which is affecting industrial production. In order to have a
10% GDP in the state the generating capacity of power has to be enhanced
Considerably.
In the 11th plan period in the state of Chhattisgarh the following departments are
planned to be enhanced the power generation.
1. Central sector – 4480 MW
2. State Sector - 3250 MW
3. Private Sector – 2950 MW
MOUs signed by various organizations for 42000 MW.
In order to complete the expansion plans in the area of steel and alloys it is essential
for the company to install captive power plants so that the cost of production shall be
competitive on Global basis.
State grid company desires companies to install their own power plant to meet
requirement and balance power can be for export. Company is presently having
generation capacity of 81.5 MW and they are also exporting upto 10 Mwh..
In view of the above M/s Sarda Energy & Minerals Ltd. (SEML) has decided to setup
a coal & middling based Thermal Power Plant with a total capacity of 350 (2x150 +
1x50) MW in District Raigarh, Chhattisgarh. SEML has retained Anacon Laboratories
Nagpur to undertake on Environmental Impact Assessment study and preparation of
Environment Management Plan for the proposed 350 MW Thermal Power Plant for
Environment Clearance from State Level Environment Impact Assessment Authority.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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2.4 Demand -Supply Gap
PRESENT INSTALLED GENERATION CAPACITY
At the end of 1st quarter for the year 2010 the installed generation capacity in the
country are 159398.49 MW. Owing to the rapid industrialization all over the country
and in particular in eastern India which so far was neglected, is witnessing massive
investment both from foreign companies in form of FDI as well as from domestic
players in the field of iron & steel, Aluminium, chemical, mines, infrastructure & etc.
and for all these, power remains the most important driving force, but in the recent
past it has been observed that power generation is not keeping pace with rapid
industrialization, which in turn is increasing demand for power, that too quality
power, because the modern machineries which are being used nowadays are
sensitive & costlier, for smooth & continuous operation, these machineries require
quality power. Keeping these entire things in mind, India must change its present
status from being a power deficit country to a power surplus country to maintain a
steady GDP growth. The state of Chhattisgarh like many other eastern India states is
also witnessing huge investment in Iron & steel and aluminium sectors. As a result
power demand is increasing day by day. Therefore, to meet the huge demand of
power in Chhattisgarh as well as many adjoining states like Orissa, Jharkhand,
Madhya Pradesh, Uttar Pradesh & Maharashtra, the demand for power in these
states has witnessed a huge surge in the last five years due to rapid industrialization.
As the state of Chhattisgarh is strategically centrally located to these adjoining
states, it has got ready market for utilization of power generated in Chhattisgarh in
these areas, where the demand for power is huge. Moreover Chhattisgarh, especially
districts like Korba, Janjgir and Raigarh have got huge reserves of untapped
hydrocarbon fuels i.e coal, being so close to the primary fuel for a thermal power
station, the transportation cost of fuel to the envisaged site shall be minimal, as a
result the cost of power generation shall be drastically reduced.
MINISTRY OF POWER’S BLUEPRINT FOR POWER DEVELOPMENT
The energy shortage in the country during first quarter of 2010 was 8980 million
units amounting to 11.7 per cent shortage and the peak power shortage was 15748
MW translating to 13.3 per cent. The Ministry of Power has developed appropriate
strategies and a blueprint to address the power situation in the country in a time
bound manner. Based on the demand projections made over 100,000 MW of
additional generation capacity needs to be added by the year 2012 to bridge the gap
between demand and supply of power.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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POWER SCENARIO IN INDIA
The projected peak power demand and energy requirement during the years 2007-12
as indicated in 17th Electric Power Survey of India is listed in the table below.
Table: - Peak Power Demand and Energy requirement
Year Peak Power Demand in MW Energy requirement in Million
kWHr
2007-08 113059 744515
2008-09 121891 794561
2009-10 131413 848390
2010-11 141678 906316
2011-12 152746 968659
Upto march,2010 the installed generation capacity of the country was 159398.49
MW, peak availability was 102725 MW and the energy generated was 67513 Million
kWHr. The energy shortage in the country during first quarter of march, 2010 was
8980 million units amounting to 11.7 per cent shortage and the peak power shortage
was 15748 MW translating to 13.3 per cent as per CEA website in the chapter “Power
Scenario at a Glance”. To meet the shortfall as well as the future demand, several
new projects are proposed.
Capacity augmentations due to the projects which are under construction or
proposed and expected to be commissioned during XI plan (2007-2012) are in Table
below.
Table: -Projected peak power & energy demand along with the deficit
Details year
2007-08 2008-09 2009-10 2010-11 2011-12
Projects Under Construction
Thermal
(MW)
6620 2485 9106 18755 13791
Hydel (MW) 2423 969 39 1436 3370
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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Nuclear
(MW)
220 0 440 1220 1500
Total (MW) 9263 3454 9585 21411 18661
Source: CEA website “White Paper on Strategy for 11th Plan”.
AVAILABILITY OF POWER
The power availability of the system is dependent on the following factors:
a) Planned outages due to maintenance, forced outages, etc.
b) Spinning reserve
c) Auxiliary power consumption
d) Stabilization period in case of newly commissioned units
e) Partial non-availability due to poor quality of indigenous coal, non availability of
gas, uncertain irrigation releases resulting in uncertainty of hydro generation at peak
hours, loss of active power due to high reactive demand of units.
Considering the peak power and energy availability from the existing plants, peak
power and energy availability of future plants based on the mix in development of
hydro, thermal and nuclear power plants projections are made for the region. The
projected peak power demand, power requirement, energy availability and energy
requirement along with the deficit or surplus are shown in table below.
Table: - Projected peak power & Energy demand along with the deficit.
S.No. Details Year
2007-08 2008-09 2009-10 2011-12
1 Peak Power
Availability
(MW)
90793 96685 102725 142765
2 Peak Power
Demand (MW)
108866 109809 118472 152746
3 Peak power
Deficit (MW) (+
for surplus, -
for
deficit)
-18073 -13124 -15748 -9981
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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4 Peak power
deficit (%)
-16.6% -12% -13.3% -6.5%
5 Energy
requirement
(MU)
739345 774324 830300 968659
6 Energy
Availability
(MU)
666007 689021 746493 948836
7 Energy Deficit
(MU)
-73338 -85303 -83807 -19823
8 Energy Deficit
(%)
-9.9 -11 -10.1 -2
From the above table, it is obvious that there is a deficit in the power availability and
energy availability in India. By the year 2012, Government of India has decided to
increase the power generation by 100000 MW. Coal is identified as the main fuel for
thermal power. The plants located in pit heads would have a greater economic and
logistical advantage in terms of cost of energy.
2.5 Employment Generation (Direct and Indirect) due to Project
The major benefit due to the proposed project will be in the sphere of generating
employment for about 700 persons in that area. The proposed project will benefit
local population. The manpower requirements for the operational phase of the Power
Plant will be about 700 people. In addition, there will be an indirect employment for
skilled/ semi skilled people during project life. All attempts will be made to employ
suitable, locally available, skilled personnel from the study area. In case of non-
availability of skilled persons, people will be employed from outside the study area.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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CHAPTER-III
Project Description
3.1 Type of project including interlinked and interdependent projects
POWER PLANT
It is proposed to install 350 MW (2x150 + 1x50 MW) a Thermal Power Plant for
generation of electric power, also utilizing the washery middling of our Captive
Mines allotted by the Government.
Electricity Generated shall be used in company's own Steel and Alloys
Manufacturing projects as well as excess Electricity shall be made available to
National and State grid.
3.2 Location (map showing general location, specific location, and project
boundary and project site layout) with coordinates
The site, admeasuring 127.0 ha of land for the proposed power plant has been identified at
village Kolam, District Raigarh, Chhattisgarh, which is located within 22o 10’ N latitude & 83o
25’ 30” E longitude.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
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Fig.- Map Showing General Location
Project Site
Location
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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3.3 Details of alternate sites considered and the basis of selecting the proposed
site, particularly the environmental considerations gone
The proposed project site is situated at Village: Kolam, Tehsil : Gharghoda (Now
Tamnar), District : Raigarh, Chhattisgarh State, 4.0 km away from SEML Captive
Karwahi Open Cast Coal Mine near Tamnar, Raigarh. No any alternative site is
considered.
The following are the factors in favor of selection of site at village Kolam,
Raigarh.
_ Proximity and availability of raw material
_ Proximity to the power evacuation at 400 KV
_ Proximity to the source of fuel
_ Availability of adequate water
_ Availability of adequate land for locating the plant with approach roads
_ Suitability of land from topography and geological aspects
_ Proximity of National Highways & Transport of heavy equipments
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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The environmental consideration of the site is tabulated below:
Sr. No. Particulars Details
1. Latitude 22o 10’ N
2. Longitude 83o 25’ 30” E
3. Altitude 300 m above MSL
4. Toposheet 64 N/8,12
5. Seismicity Area falls under least affected earthquakes zone II as per IS 1893 - 2002
6. Present land use Single Crop Agricultural Land and Revenue Forest Land
7. Climatic condition (Annual Average)
Ambient Air temp 7oC to 48oC Avg. annual rainfall 1400 mm (IMD, Raigarh)
8. Nearest village Kolam(0.8 km, East), Chiramura (1.8 km, North)
9. Nearest towns Ghargoda (8 km, West)
10. Nearest railway station Raigarh Raigarh (35 km)
11. Nearest airport Raipur (250 km)
12. Streams / Rivers Kelo River (SE-8.0 km), Pajhar Nala (W-0.6 km ),Tadipara Nala (NNW-6.0 km),Karanera Nala(SE-8.6 km),Kasaia Nala (WNW-8.7 km),ChuiNala (SSW-8.2 km),Gardhakari Nala (SSW-8.8km),Digi Nala (SSW-4.9 km),Ranai Nala (SW-6.6km) ,Bhendra Nala (SW-7.0 km)
13. Sanctuaries /National Parks/ Biospheres, etc.
Nil
14. Topography Gently undulating and sloping toward west
15. Defense Installations Nil
16. Historical Places Nil
17. Reserve Forest/Protected Forest
Silot RF (NE-3.6 km),Rampur PF (NE-7.5 km),Deodongar RF (NE-9.2 km), Gare PF (ESE-6.7km), Samaruma RF (SW-6.6 km),Amaghat PF(SSW-8.4 km) and Revenue Forest (NW side).
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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3.4 Size or magnitude of operation
The details of proposed power plant are presented in Table below:
Sr. No. Features
1. Capacity 350 (2 x 150 + 1 x 50) MW
2. Type of Boiler CFBC / AFBC / PC
3. Temperature 545 0C
4. Atmospheric Pollution Control
System
Electrostatic Precipitation
5. Fuel Raw coal and Middling
6. Source Coal: Captive Karwahi Coal Mine.
Middling: Captive Coal Washery.
7. Steam Turbine Generator One / Two Cylinder, Axial Flow
3.5 Project description with process details
Plant Site
A total area of around 313 acres is identified for the installation of 350 MW (2 x150 + 1
x 50 MW) Thermal Power Plant in Village: Kolam ( 4.5 KM. away from our Karwahi
open cast coal mine), Tehsil : Tamnar, Dist. Raigarh, (Chhattisgarh) for proposed
plant.
Statement of Area
The facility and the proposed area of the plant are shown in Table given below:
Statement of Area for Proposed Power Plant
S. No. Facility Actual Required Area
(Acre)
1. Main Plant Area 88
2. Coal Handling Area 15
3. Storage of Other Fuel 18
4. Ash Disposal Area 30
5. Ash Brick Plant 27
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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6. Administration Block 6
7. Roads 26
8. Green Belt 103
TOTAL 313
MECHANICAL EQUIPEMENTS AND SYSTEMS
STEAM TURBINE FOR 2X150MW
TURBINE ALTERNATOR SET Steam Turbine – 2 x 150 MW
Make From Reputed manufacturers like M/s
BHEL / SEIMENS / SKODA / CHINA Etc.
with the following specifications
Type One / Two Cylinder, Axial Flow.
Steam Pressure 133.00 Kg/cm2
Temperature 537oC
Back Pressure -0.91 Kg/cm2
RPM 3000
Alternator 02 Nos.
Type Hydrogen/Water Cooled/ Air Cooled
Rating 3 Phase, 50 Cycles at 0.8 P.F.
Voltage 14.5 + 0.5 K Volts
Speed 3000 RPM
Capacity 300 MW (2 x 150 MW)
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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TG Set Auxiliaries
Turbine Auxiliaries Like Condenser, Feed
re-generative system, CEPs, AOP, air
ejectors, Feed Pumps, NGT, Oil purifiers,
Oil Coolers and associated piping and
fittings will be procured from reputed
manufacturers.
STEAM TURBINE FOR 1X50MW
TURBINE ALTERNATOR SET Steam Turbine – 1 x 50 MW
Make From Reputed manufacturers like M/s
BHEL / SEIMENS / SKODA / CHINA Etc.
with the following specifications
Type Single Cylinder, Axial Flow.
Steam Pressure 89 Kg/cm2
Temperature 535oC
Back Pressure - 0.90 Kg/cm2
RPM 3000
Alternator 01 Nos.
Type Air Cooled / Water Cooled
Rating 3 Phase, 50 Cycles at 0.8 P.F
Voltage 13.5 + 0.5 KV
Speed 3000 RPM
Capacity 50 MW
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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TG Set Auxiliaries
Turbine Auxiliaries Like Condenser, Feed
re-generative system , CEPs, AOP, air
ejectors, Feed Pumps, NGT, Oil purifiers,
Oil Coolers and associated piping and
fittings will be procured from reputed
manufacturers.
STEAM GENERATOR FOR 2X150MW
BOILER AFBC/CFBC/PF Boiler
Make Reputed make like CVL/BHEL/Thermax
/China etc.
Capacity (Max) 520 TPH x 2 Nos
Working Pressure (S/H Outlet) 138 Kg/cm2
Temperature 540oC
Type Water Tube, Coal Fired Boiler
Auxiliary associated with Boiler Feed ID Fans, FD Fans, PA Fans, Electrical
Feed Pumps, Air/Flue Gas ducting, Ash
Hoppers, Dense Phase Ash Handling
System & associated piping & ducting.
SARDA ENERGY AND MINERALS LIMITED. PROJECT FEASIBILITY REPORT
350 MW POWER PROJECT
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STEAM GENERATOR FOR 1X50MW
BOILER AFBC/CFBC / PF Boiler
Make Reputed make like CVL /
Thermax / China etc.
Capacity (Max) 110 TPH x 2 Nos.
Working Pressure (S/H Outlet) 92 Kg/cm2
Temperature 530 ± 10oC
Type Water Tube, Coal Fired
Boiler
Auxiliary associated with Boiler Feed ID Fans, FD Fans, PA Fans,
Electrical Feed Pumps,
Air/Flue Gas ducting, Ash
Hoppers, Dense Phase Ash
Handling System &
associated piping & ducting.
The other utilities of plant consist of Coal Handling System, Auxiliary Cooling water
for SG and TG , DM water plant, softener plant, ash-handling system etc. Each boiler
will be connected with an ESP of 99.5% efficiency. The de-dusting system will be
installed at various junction points to control the emission.
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350 MW POWER PROJECT
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ELECTRO STATIC PRECIPITOR
Make Any reputed make like ACC/Thermax /
Ricco etc.
Specification
Gas Temperature (Optg/max.) 140 Deg. C
Gas Pressure (-) 250 ( mm WG) max.
Moisture content 10 % to 12 %
ESP Inlet Dust conc. 60 gm/NM3
ESP Outlet Dust emission < 50 Mg/NM3
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COAL HANDLING SYSTEM
The coal required for Power Plant is of size - 30 mm and whereas the coal received
from the mine ( - 300 mm) & middling received from washery is of size < 10 mm .
Thus the coal received is required to be crushed and screened.
The coal received will be feed into ground hopper. This will be crushed and screened
to - 30 mm size. From the screen it will be fed into traveling tripping trolley installed
on the coal bunkers and the oversize coal will be again fed for re-crushing to crusher.
Traveling Tripper trolley installed above the Coal Bunker will facilitate uniform
distribution of the coal into the bunkers. The Coal handling system consists of the
following major equipments:
a] Ground Hopper
b] Impact Crusher
c] Vibrating Screen
d] Conveyor Belt
e] Traveling Tripper Trolley
f] Stacker and Reclaimer
COAL YARD
The coal required for the thermal power plant will be stored in a open yard. Floor of
the yard will be concrete floor and there will be partition walls for proper stacking of
the coal and it is proposed to construct shed for storing the coal for rainy season
requirement.
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ASH HANDLING SYSTEM
For handling of fly ash of the steam generator, dense phase, pneumatic conveying
system is provided. The ash collected in the hoppers located in economizer, air pre-
heated sections of SG and ESP hoppers will be pneumatically conveyed and collected
in a silo from where the ash will be disposed off by road trucks for brick
manufacturing and selling to cement plants.
COMPRESSED AIR SYSTEM
The compressed air is required for operation of control valves pneumatic cylinders,
conveying of Ash through ash handling system.
WORKSHOP
A mechanical workshop will be set to meet maintenance services of the plant. Lathe,
Shaping Machine, Vertical Drill, Bending Machine, Punch Press, Shearing Machine,
Welding Transformer/Rectifier, Power Hack-Saw Machine, Hand Grinders etc. are
planned.
LABORATORY
A fully equipped chemical laboratory for the inspection, analysis and quality control
of incoming raw materials and water will be built.
COOLING WATER SYSTEM
The water is the main raw material for generation of power. The water will be used in
Boiler, Auxiliary cooling water (ACW system) for SG, TG and various parts of
Turbine, Compressor cooling etc. The water is also required for drinking and
sanitation purpose, fire fighting for afforestation etc.
The water from the reservoir will be sent to clarifier. For this purpose a pump house
will be constructed adjacent to clarifier unit.
The water required for the Boiler shall be de-mineralized water. Accordingly DM
Water Plant will be installed.
The temperature of Auxiliary cooling water supply to these equipments should be at
33oC max. During circulation there is a temperature rise of water to the tune of 10oC
due to heat transfer. Thus, to achieve inlet water temperature of 33oC a induced
draft cooling tower will be installed for power plant auxiliary cooling.
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To maintain the hardness of circulating water the periodical blow down of water from
induced draft cooling tower is done. This water will be used for fire fighting,
sanitation, afforestation purpose etc.
Water Quality Requirement For Boiler
Specific electrical conductivity at 25oC measured after cation exchanger in the H+ form and after Co2 removal
0.5 Qs /cm (max.)
Total Iron 0.01 ppm (max.)
Total copper 0.01 ppm (max)
Total Silica 0.02 ppm (max)
Oxygen 0.007 ppm (max)
Hydrazine residual 0.01 - 0.02 ppm
pH at 25oC (Copper Alloy Pre-boiler
System)
8.8 - 9.2
pH at 25oC (Copper free Pre-boiler
System)
9.0 - 9.4
Permanganate max. ppm - Nil
Hardness ppm - Nil
Total Co2 ppm - Nil
Oil ppm - Not allowed
Boiler Water Total dissolved solids ppm - Not more than 100
Specific electrical conductivity at 25 Deg
CQs/cm
Not more than 200
Phosphate residual ppm - 15 - 25
pH at 25 Deg. C 9.8 - 10.2
Silica max. ppm - 0.02
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ELECTRICAL EQUIPMENTS
The Power from Captive Power Plant will fed to our 400 KV substation. CSEB Supply
will be connected to our sub station for Import / Export / start up power. For
auxiliaries 6.6 KV and 415 Volts will be used for which separate power system will be
designed
EMERGENCY DG SET
An emergency diesel engine generator set of suitable rating will be provided to meet
emergency power to loads such as turbine A.C. lube oil pump, UPS and plant
illumination system during failure of AC power within the Power Plant.
LIGHTING
Lighting load will be supplied through lighting transformer of unity ratio installed at
lighting distribution boards. Lighting transformers will feed lighting distribution
board. Lighting panels/receptacle panels for various areas will cater the actual
lighting and power receptacle requirement of the plant.
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PLANT INTER COMMUNICATION SYSTEM
The adequate communication system will be provided in the power plant to facilitate
plant operations by establishing quick communication among the operating
personnel at various location of the plant.
CONTROL AND INSTRUMENTATION
The objective of this section is to outline the design philosophy adopted for control
and instrumentation (C&I) systems for thermal power plant. The total plant operation
will be controlled through DCS. However, in case of failure of the DCS, the total
control can be transferred to manual operation and the total plant can be
operated manually from control room only by using closed loop controllers and
A.O.M. switches. Thus the failure of DCS system will not affect the plant operation.
FIRE PROTECTION SYSTEM
The Fire protection system proposed will provide early detection and suppression of
fires. The entire fire protection system will be designed as per the requirements of the
Tariff Advisory Committee - Fire Protection Manuals to avail maximum possible
rebate in fire insurance premium. The fire protection system will consist of fire
hydrants, sprinkler system for coal yard, fire water pumps and provision of portable
fire extinguishers.
AIR CONDITIONING AND VENTILATION
The common control room for the operation of steam generator and TG will be air-
conditioned.
The ventilation system for turbine building to be provided to evacuate the heat
generated from the operating equipment like turbine, pumps, motors etc. and also to
provide good working condition by providing fresh air with adequate number of air
changes.
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Control System
D.C.S. control system along with turbo-visory system shall be adopted for
thermodynamics system of power generation. All equipments will be centrally
controlled and monitored from the control room with choice to run locally, whenever
required.
PROCESS OF POWER GENERATION
Coal Based AFBC/CFBC/ PF Boiler – Capacity 2 X 520 TPH & 2 X 110 TPH
For Thermal Power Plant coal & water are the essential raw material in the process.
Coal & Middling will be transported from mines by road / conveyor. Coal received by
road is unloaded by truck tipper arrangement. The coal is brought to the coal
hoppers by conveyors. The coal from the hoppers is fed by vibro-feeder to a coal
conveyor. The coal from the conveyor is passed through coal crusher where the size
of the coal is reduced to -30 mm size. Subsequently the crushed coal is fed to the
vibratory screen where the size of the coal has been bifurcated in less than 30 mm &
more than 30 mm size. The Coal size having more than 30 mm is brought again to
the crusher the after crushing the size is reduced to less than 30 mm size. The coal
passing through vibrating screen of less than 30 mm size is transported through the
belt conveyor to the coal bunker. Now the coal available in the bunker is ready for
burning in the boiler.
Boiler
Boiler is provided with various auxiliaries such as ID Fan, FD, fan, PA fan, Coal
feeder, ESP, Ash handling system. The boiler is provided with various fittings duly
approved by IBR authorities.
Boiler consist of Steam Drum, water wall tube, PSH, SSH, Eco, Air heater. Initially
the DM water is filled in the boiler up to the center level of the Steam Drum provided
on the top of the boiler, This will ensure filling of DM water of all water side parts
such as economizer, bed coils, all the four walls of the boiler.
Initially ID fan started to maintain the natural draught in the furnace. Subsequently
FD fan will be started. The FD fan draws the air from the atmosphere and delivers to
the air heater and subsequently passes to air box / Burner provided with the boiler.
The PA fan is started to convey coal inside the Boiler after attaining ignition
temperature.
Lighting up of the Boiler is done through LDO , after achieving the temp. more than
600 Deg C of the furnace, the PA fan and Coal feeders/ Mills will be started.
Subsequently the coal of the desired quantity is fed into the boiler. The quantity of
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350 MW POWER PROJECT
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the coal injected into the furnace is slowly increase to achieve the boiler design
parameters.
The heat generated due to burning of the coal will be absorbed in the boiler parts and
the flue gases will be passed through various parts of the boiler so that the final gas
temperature achieve to 140 to 150 Deg C and finally pass through ESP, ID, Chimney
and to the atmosphere. While passing the dust-laden gas in the ESP, all the dust is
removed to the hoppers of the ESP and subsequently pass to the ash storage silo.
Boiler is generating steam of the desired parameters of the turbine and the generated
steam is passed through the turbine.
Turbine
The Steam Turbine is directly coupled with Generator and Exciter. Steam is passed
through turbine and at the last stage it is passed through the condenser where all
the exhaust steam is condensed in to the water by indirect cooling in the condenser.
Now turbine is rotating at the desired speed as it is directly coupled with the
generator and exciter. Generator generates AC current as per the manufacturer ‘s
recommended voltage. Now the power is available at the generator terminals & it can
be fed to substation. In the process Mechanical energy is converted into the electrical
energy.
Water
The water received from the river or any other water source is pumped to DM plant
and clarifier plant. In the DM plant water is purified to suit the Boiler. In Clarifier
plant, the water is purified to the desired extent and this water is used as the make
up to the small Induced draft Cooling Tower.
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Process Flow Diagram
The Project layout plan is enclosed in section 3.2 of this report.
Makeup Makeup Makeup Makeup
WaterWaterWaterWater
Coal Handling Coal Handling Coal Handling Coal Handling
PlantPlantPlantPlant
Coal Coal Coal Coal
Cooling Cooling Cooling Cooling
TowerTowerTowerTower
CondenserCondenserCondenserCondenser
Boiler Feed Boiler Feed Boiler Feed Boiler Feed
WaterWaterWaterWater
BoilerBoilerBoilerBoiler
CondensateCondensateCondensateCondensate
SteamSteamSteamSteam
SteamSteamSteamSteam
TurbineTurbineTurbineTurbine
GeneratorGeneratorGeneratorGenerator
TransformerTransformerTransformerTransformer
Cooling Cooling Cooling Cooling
Tower Tower Tower Tower
BlowdownBlowdownBlowdownBlowdown
BoilerBoilerBoilerBoiler
BlowdownBlowdownBlowdownBlowdown
Electrostatic Electrostatic Electrostatic Electrostatic
PrecipitatorsPrecipitatorsPrecipitatorsPrecipitators
BottomBottomBottomBottom
AshAshAshAsh
Fly AshFly AshFly AshFly Ash
Switch YardSwitch YardSwitch YardSwitch Yard
Bottom Ash Bottom Ash Bottom Ash Bottom Ash
StorageStorageStorageStorage
Dry Ash Dry Ash Dry Ash Dry Ash
Storage SilosStorage SilosStorage SilosStorage Silos
ChimneyChimneyChimneyChimney
Stack Stack Stack Stack
EmissioEmissioEmissioEmissio
nnnn
Ash Ash Ash Ash
UtilizationUtilizationUtilizationUtilization
DeaeratorDeaeratorDeaeratorDeaerator
CoolingCoolingCoolingCooling
waterwaterwaterwater
AshAshAshAsh
DykeDykeDykeDyke
To GridTo GridTo GridTo Grid
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3.6 Raw material
Raw Material
The main raw material required for generation of power is coal. The company has
been allotted captive coal blocks. The mined ROM coal will be washed for upgrading
the same for utilization in sponge Iron plant. The middling generated from our
proposed coal washery at Bajarmure & Dholnara will be utilized for generation of
power . The company will meet requirement of coal by Captive Karawahi Coal Mine,
Raigarh. All the coal will be transported from Mines/ Washery to plant site by closed
conveyor belts and road. The Power Generated from Power Plant shall be evacuated
through Tamnar Sub Station at 400 KV.
Name of Raw Material Total Quantity Required MTPA
Non Coking Coal 1.996
Middling From Coal Washery 0.334
Total 2.330
Start Up System – LDO / HFO
LDO / HFO fuel oil is required at the time of Boiler start up and stabilization period .
Total quantity estimated on annual basis as 3600 m3/year.
Coal
Coal and Middling consumption of the 350 MW power plants will be about 19.96
Lakhs TPA + 3.34 lakhs TPA when plant would operate at a Plant load factor (PLF) of 90
%.
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Expected Range of Coal Quality
S.No. Parameters Coal Middling
1. Sulphur (%) 0.3-0.4 0.3-0.4
2. Moisture (%) 8-12 10-16
3. Ash (%) 40-45 50-55
4. Gross Calorific
Values (GCV)
kCal/kg
3000-3600 1400-2200
5. Grade F G
Transport Facilities
Coal will be transported from the Captive Karwahi Coal Mine and Middling will be
transported from captive coal Washery to project site by Closed Conveyor belt and
Road.
3.7 Resources optimization/recycling and reuse envisaged in the project
Proper Blending of Raw Coal and Middling will be ensured while operation of plant to
have highest boiler efficiency and optimum coal consumption per kWh of energy
generated.
Ash generated from power plant shall be made available to nearby Cement Plants,
making of Eco friendly Bricks, Road building, Back filling of excavated mines in
Environment friendly manner.
Zero discharge of effluent shall be ensured from Power Plant by treating and re
utilizing all the waste water generated during operation.
3.8 Availability of water its source, Energy/Power requirement and its source
The overall water requirements of the plant including the re-circulating systems,
make-up water system, water treatment facilities, etc have been discussed in the
following paragraphs.
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Water requirements
Water is required in the plant mainly for the purpose of equipment cooling and make
up in cooling towers. Water is also required for drinking, sanitary and fire fighting
purposes. In order to conserve water and minimize the make-up water requirements,
it is proposed to adopt re-circulating systems for equipment cooling. In re-circulating
system same water re-circulates again and again for after proper treatment/bleed off.
The detail of water requirement is given below in the table:-
Water BalanceWater BalanceWater BalanceWater Balance
Sr.Sr.Sr.Sr.
No.No.No.No.
UUUUnitsnitsnitsnits Water Quantity (Cum/hr)Water Quantity (Cum/hr)Water Quantity (Cum/hr)Water Quantity (Cum/hr)
Water Water Water Water
RequirementRequirementRequirementRequirement
System LossSystem LossSystem LossSystem Loss WastewaterWastewaterWastewaterWastewater
1 Cooling Tower 1007 843 164
2 DM Water
3. For steam generation 4. For Potable
83 81 2
3 Service Water 25 22 3
TotalTotalTotalTotal 1115111511151115 946946946946 169169169169
Withdrawal of river water will be 1175 m3/hr, after considering loss due to
desludging, evaporation etc. (1115+60 = 1175 m3/hr).
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Water Balance DiagramWater Balance DiagramWater Balance DiagramWater Balance Diagram
Fig.- Water Balance Diagram
Raw WaterRaw WaterRaw WaterRaw Water
ReservoirReservoirReservoirReservoir
Service WaterService WaterService WaterService Water Filt. & DM PlantFilt. & DM PlantFilt. & DM PlantFilt. & DM Plant Cooling TowerCooling TowerCooling TowerCooling Tower
1007100710071007
164164164164
CT BleedCT BleedCT BleedCT Bleed
Back WashBack WashBack WashBack Wash
Potable Potable Potable Potable
WaterWaterWaterWater
DMDMDMDM
WaterWaterWaterWater
Plant Plant Plant Plant
utilitiesutilitiesutilitiesutilities
WastewaterWastewaterWastewaterWastewater
Total WastewaterTotal WastewaterTotal WastewaterTotal Wastewater
169169169169
ETP
ETPETPETPETP
1175
1115
25 83 1007
2
3 78 3
22
164 2 3
Road & Vehicle Road & Vehicle Road & Vehicle Road & Vehicle
washingwashingwashingwashing VentilationVentilationVentilationVentilation Coal Handling/Dust Coal Handling/Dust Coal Handling/Dust Coal Handling/Dust
SuppurationSuppurationSuppurationSuppuration GreenbeltGreenbeltGreenbeltGreenbelt Ash Handling Ash Handling Ash Handling Ash Handling
PlantPlantPlantPlant
169
6 22 29 83 29
All Values in mAll Values in mAll Values in mAll Values in m3333/hr/hr/hr/hr
60606060
Evaporation loss
843
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The water requirement for the power plant will be 81 m3/MW/ Day. The total water
requirement for the proposed power plant will be 1175 m3/ Hour.
Total plant water requirement shall be met from Kelo River. According to Water
Resource department required water is available in the Kelo River. Necessary
permission for withdrawing water has already been obtained from Authorities.
Dedicated water pipe line shall be laid from proposed Anicut to Plant which is about
7.7 KM from plant. A pump house shall be constructed at Anicut for pumping of
water.
Electricity for Pump House operation shall be taken via 33 KV line from nearby
substation.
3.9 Quantity of wastes to be generated (liquid and solid) and scheme for their
Management/disposal
The origin and the likely form of environmental pollution caused by various
operations in the proposed plant are summarized in Table given below.
From the table, it may be observed that dust pollution of ambient air is predominant
for which necessary pollution control measures are necessary.
ORIGIN AND FORM OF POLLUTION
Operational Principal
constituents
Likely form of
environmental pollution
Pollution Control
Measures
Raw materials
handling
Coal Air pollution due to dust,
Non toxic solid wastes
Localized noise pollution
Bag Filters , Water
Sprinkling etc.
Disposal in closed
containers and
other recycling
Industry
Proper Equipment
Selection and
maintaining Noise
norms across
plant boundary
Power Plant Flue gas from
boilers
Stack emissions Electro Static
Precipitators
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It is proposed to construct two nos. RCC stacks - One no. 220 meter height twin flue
for 2 x 150 MW Boiler & One no of 110 meters height for 50 MW boiler.
A brief review on pollution sources of respective production departments is discussed
below to identify the sources and the nature of environmental pollution in respect of
air, water, noise etc.
Raw Material Handling
In the raw material handling section the fugitive dust emissions arise from the
stockpiles of coal and other raw material handling units like crushing and screening
unit, material transfer points of conveyor system etc. Noise pollution may occur in
localized areas such as the crushing and screening unit.
Water pollution
In the proposed plant the major water pollution occurs in the wastewater generated from the DM plant and small quantity from cooling tower of the thermal power plant. Total 169 m3/hr waste water will be generated from plant and the same will be treated in Effluent Treatment Plant. The treated effluent will be utilized within the plant premises (Dust Suppuration for Road & Vehicle Washing, Ventilation, Coal Handling/Dust Suppuration, Greenbelt and Ash Handling etc.)
POLLUTION CONTROL MEASURES
The four principal pollutants in the plant are:
(i) Fugitive emissions of dusts in raw materials handling.
(ii) Air pollution due to stack emissions of combustion units
(iii) Waste water discharged from the various production units
(iv) Solid wastes generation. In each plant unit above, adequate
pollution control measures will be provided to meet the prevailing
emissions regulations and the allowable limits of waste water
discharge characteristics.
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Some of the major pollution control measures which have been envisaged in
the proposed project are outlined below:
Air Pollution Control
i) Extensive dust extraction systems such as dust cyclones, bag
filters and electrostatic precipitators to arrest the dusts emissions
from the raw materials handling in power plant. The conveyors will
be closed as far as practicable.
ii) Stacks of appropriate heights based on proper dispersion of stack
emissions.
Water Pollution Control
In all other departments the cooling water will be re circulated, and the system
operated as zero discharge. While in the case of indirect cooling circuits,
there is no treatment required, in case of contaminated circuits it will be
necessary to have a treatment facility.
The drain water (storm water drainage) will be generally impounded in the
lower reaches of the plant for use inside the plant. This water will be used
for gardening, sanitary uses, sprinkling in dusty areas, road washing etc.
Noise Pollution Control
Noise pollution control measures will be provided in respective departments by
way of providing silencers, sound-proof cubicles / covers, and proper
selection of less noise prone plant and machineries.
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Solid Waste Management
Ash is the main solid waste generated in the coal based thermal power plant.
The quantity of fly ash and bottom ash generated will be (0.84 MTPA) and
(0.21 MTPA) respectively.
Bottom ash will be disposed off by using slurry disposal system. Unutilized fly
ash will also be disposed off in designated ash disposal area. Fly ash will be
utilized in cement manufacturing, bricks plant and filling of mines etc.
Green Belt Department
It is proposed to have extensive green belts all around the plant by planting
suitable species of evergreen trees. Adequate tree plantations will substantially
abate the dust pollution, filter the polluted air, reduce the noise and
ameliorate the plant environment. Where tree plantations may not be feasible,
the unpaved land shall be covered with grass and small height bushes in order
to avoid soil erosion.
Workers Safety Measures
Besides the above, the operating and maintenance personnel will be provided
with all the necessary safety equipment such as hand gloves, gum boots,
aprons, helmets, protective glasses, ear muffs etc.
Workers training will focus on reduction of wastes, utilization of wastes and
generally maintaining a clean and healthy environment.
Pollution Monitoring
Necessary provisions for routine monitoring of stack emissions, ambient air
quality, noise level, water quality as required by the regulations will also be
provided.
3.10 Schematic representations of the feasibility drawing which give
information of EIA purpose
Please Refer Point no : 3.2 for Plant Layout , Point No. 3.5 for Process Flow Chart ,
Point No. 3.8 for Water Balance of the same report mentioned above.
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CHAPTER-IV
Site Analysis
4.1Connectivity
The proposed power plant would be located at village: Kolam in Tahsil: Tamnar dist :
Raigarh , Chhattisgarh State. The nearest town from the site is Ghargoda which is
around 8 KM. The nearest railway station is Raigarh on Mumbai – Howrah main line
which is around 35 KM. Nearest air port is at Raipur which is 250 KM from site. The
nearby sea ports are Vizag – 500 KM and Kolkata – 800 KM.
The site is connected to Raigarh – Panjipatra State Highway 76 at Tamnar which is
17 KM from Site
4.2 Land Form, Land use and Land ownership
The project requires about 127 Ha of land. Identified site ( 127 Ha) is mainly
comprising of agriculture land having single crop in a year , non irrigated land ,
revenue forest ( about 14.474 Ha). Land ownership is private mostly from village
Kolam , revenue forest is govt land .
4.3 Topography - with map
The proposed project site is fairly flat with shrubs present at some places.
There will not be much cutting and felling of trees for the proposed project.
The topography of the proposed site is gently undulating and sloping towards west.
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Fig. - Topographical Map of 10 KM radius from proposed site.
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4.4 Existing land use pattern (agriculture, non-agriculture, forest, water bodies (agriculture, non-agriculture, forest, water bodies (including area under CRZ)), shortest distances from the periphery of the project to periphery of the forests, national park, wild life sanctuary, eco sensitive areas, water bodies (distance from the HFL of the river), CRZ.
127.0 ha of single crop agricultural land is under acquisition for the proposed
projects including 14.474 ha of revenue forests land which is about 4.0 KM from
company's captive Coal Mine. The physical changes in respect of topography and
land use, though permanent, shall be compensated by developing green belt and
afforestation activities in and around the project site.
No National Park and Wildlife Sanctuaries in 10 KM radius from the proposed site.
Details of nearby Reserve Forest
1. Silot Reserve Forest - 3.6 KM North East 2. Deodongar Reserve Forest - 9.2 KM North East 3. Samaruma Reserve Forest - 6.6 KM South West 4. Amaghat Protected Forest - 8.4 KM South South West 5. Revenue Forest - Adjacent North West Side
Nearby Eco-sensitive Zones – Nil
Nearby Elephant/Tiger Reserves – Nil
Migratory Routes – No
4.5 Existing Infrastructure
Good infrastructure is available in the vicinity of Plant which makes proposed site
ideal for Power Generation Plant; some of the key features are listed below
1. Availability of Lailunga - Gharghoda Road of 10 meter width along side plant
boundary. Same can be used for transportation of all kind of Power Plant
Equipment , Raw material and Ash transportation.
2. Availability of adequate Water Resources in the radius of 8 KM
3. Power Evacuation through National Grid at Tamnar (15 KM distance from site )
4.6 Soil classification
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Plant site is hard sub soil with very good soil bearing capacity. Physical
characteristics of soil are delineated through specific parameters viz. particle size
distribution, bulk density, porosity, water holding capacity and texture.
The bulk density of the soil in the site ranged between 1.31 to 1.49 g/cc which
indicates favorable physical condition for plant growth. The porosity and water
holding capacity of the soils are in the range of 33.65 % to 39.54 % and 34.21 % to
37.64% respectively. The soil in the impact zone has sandy loam structure with
moderate water holding capacity
4.7 Climatic data from secondary sources
Climatical data collected from Secondary source i.e. IMD Raigarh. The details of data
are tabulated below:-
Month
Temperature (oc) Relative Humidity (%) Rain-fall
Min Max Min Max Mean
January 13.3 28.3 40 61 11.2
February 16.0 31.6 30 53 15.7
March 20.4 36.0 23 41 2.4
April 25.1 40.3 20 38 13.8
May 28.0 42.6 21 40 17.5
June 27.1 38.0 50 63 199.0
July 24.7 31.6 76 85 453.8
August 24.7 31.1 78 86 494.5
September 24.5 32.2 73 81 287.2
October 22.0 32.4 59 71 49.1
November 17.1 30.3 47 61 3.7
December 13.2 28.2 44 62 4.1
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The maximum wind speed of the area is 60 KM/hr.
4.8 Social Infrastructure available
Kolam is the Nearest village to plant, General social infrastructure like Samudayik
Bhawan , School etc are available in the nearby villages.
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CHAPTER-V
Planning Brief
5.1 Planning concept
Type of industry: Power Plant
Transportation Facilities: Lailunga - Gharghoda Road for transportation . Gharghoda
is connected to national Highway.
Town and Country planning/Development authority: Gram Panchayat
5.2 Population Projection
Total Population in 10 KM radius of site is estimated as 76638.
5.3 Land use planning (breakup along with green belt etc.)
The present project requires 126.67 ha of land. The break-up of the land use for
the project is given in Table below. The layout plan of the proposed power plant is
presented in Section 3.2 of this report.
Table-Breakup of Land Use
S. No. Description Area (ha)
1. Main Plant Area 35.61
2. Coal Handling Area 6.07
3. Storage of Other Fuel 7.28
4. Green Belt 41.68
5. Ash Disposal Area 12.14
6. Admin Block 2.43
7. Roads 10.52
8. Ash Brick Plant 10.93
Total 126.67
(Say 127 ha.)=
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The main objective of the green belt is to provide a buffer between the sources of
pollution and the surrounding areas. The green belt helps to capture the fugitive
emissions and attenuate the noise apart from improving the aesthetics quality of the
region. A 20 – 25 m wide greenbelt shall be developed along the periphery of the plant
and in all open areas. Avenue plantation shall also be developed as per the standard
norms. Approximately 1500 trees per Ha will be planted in consultation with the local
forest department. .33% area of the total plant area will be developed as Green belt .
5.4 Assessment of Infrastructure Demand (physical & social).
Basic infrastructure demand for nearby area would be first to have internal roads ,
availability clean and pure drinking water , availability of good schools , availability of
Hospitals , community halls , Sulabh Shauchalaya , easy and faster means of
transportation and connectivity to nearby town and city , availability of
uninterrupted electricity etc are the present assessed demands for sustained and
healthy growth of nearby area of site. Most of the infrastructure demand mentioned
above comes automatically when industry of this magnitude comes in such remote
area , systematic efforts shall be made to bring such facility in the surrounding area
for all round physical and social development.
5.5 Amenities / Facilities
For the social development in the affected area the company has plans firm as to
construct community halls, road, drinking water etc. Company shall provide mobile
medical van for the free treatment for nearby villagers. Time to time the company
shall also organize free eye check up, cataract camp, free distribution of spectacles
etc.. The company will initiate and construct primary health center in association
with Heath Department of Chhattisgarh Government.
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CHAPTER-VI
Proposed Infrastructure
6.1 Green Belt
The main objective of the green belt is to provide a buffer between the sources of
pollution and the surrounding areas. The green belt helps to capture the fugitive
emissions and attenuate the noise apart from improving the aesthetics quality of the
region. A 20 – 25 m wide greenbelt shall be developed along the periphery of the plant
and in all open areas. Avenue plantation shall also be developed as per the standard
norms. Approximately 1500 trees per Ha will be planted in consultation with the local
Forest Department. 33% area of the total plant area will be developed as Green belt .
6.2 Social Infrastructure
For the social development company will provide the arrangement of community
hall, road, water, electricity etc. in the affected villages. For the economical
development the company will provide the employment as per requirement and
individuals qualification and eligibility. For the educational development the set up of
an English medium school is proposed.
For the social development in the affected area the company is planning to construct
community hall and will provide other facility like road, water, electricity etc.
6.3 Drinking Water Management
The source of water to the plant is Kelo river. The drinking water system will cater to
the drinking and sanitary requirements of plant personnel as well as laboratory and
contingent users. The required water will be withdrawn from the storage reservoir by
two pumps (including one stand-by). The treated water will be chlorinated and stored
in the overhead tank for distribution as drinking water.
6.4 Sewerage system
It is proposed to collect fecal sewerage through sewerage network from the
plant and lead it to the sewage treatment plant. The treatment plant shall
consist of screen grit separator, primary sedimentation tank, activated sludge
plant, secondary clarifier, sludge recirculation pump house etc. The treated
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effluent quality shall conform to the Indian Standard for discharge to surface
water.
6.5 Industrial Waste Management
Management procedure and methodology of all kind of wastes from Plant like Ash
& Effluent Water etc is already discussed in details under point no. 3.9 of this
report.
6.6 Solid Waste Management
The main solid waste from the proposed Power Plant will be ash (Fly ash and Bottom
ash). The ash generation of about 3181 TPD(1.05 MTPA). Out of this, the bottom ash
will be about 20% of the total bottom ash generated i.e. 636 TPD (0.21MTPA ) and the
fly ash will be about 2545 TPD (0.84 MTPA ) . It is proposed to utilize 100% of the fly
ash generated. During emergency the ash will be disposed off safely in ash pond area
to avoid environmental hazards. All efforts, however, will be made to utilize fly ash for
various purposes. Unused fly ash will be disposed off in the ash pond. To control
fugitive dust emission from the ash pond area water sprinkling would be done. After
the ash pond is abandoned, its area will be reclaimed through tree plantation.
6.7 Power Requirement & Supply /Source
Power shall be required from CSEB during Construction of Power Plant and initial
start up of Plant. Once Plant is synchronized power will be flowing out from the plant.
Occasionally power will be required from the grid at the time of black of condition.
Total 15000 KVA connected demand is envisaged for plant.
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CHAPTER-VII
Rehabilitation and Resettlement (R & R) Plan
The total area identified for the proposed project is 127.0 ha.(313 Acre). There was no
displacement of people. Thus R & R issues are not applicable.
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CHAPTER-VIII
Project Schedule and Cost Estimates
8.1 Likely date of start of construction and likely date of completion
Phase I - Year March 2014 (2 x 150 MW) Phase II - Year June 2014 (1x50 MW)
PROJECT IMPLEMENTATION CONCEPT
In order to ensure coordinated implementation within the short construction
period envisaged for the project, it will be necessary to evolve an optimal
compromise between the fully disaggregated mode and the turnkey package
implementation mode. In principle, it will be prudent to tie up the technology
requirements and the key equipment in the production units to reliable and
high quality vendors. In the case of the major production packages, it will be
necessary for the Principal supplier (responsible for the basic engineering,
equipment engineering, technology, critical equipment supply, and
performance guarantees). The local procurement can cover the balance non-
critical equipment, auxiliaries and systems. The major auxiliary packages in
the power system, water system and the yard utilities will be formed into
discrete packages.
The proposed model has been adopted in a number of projects with
considerable success and fast ramp up. The construction schedule for the
project has been drawn up accordingly.
CONSTRUCTION SCHEDULE
Taking into account the estimated volume of work, the need to commission the
plant facilities in the shortest times with a rational planning of the production
facilities, a preliminary construction schedule for the proposed plant will be
prepared.
The commencement, duration and completion of the major construction
activities are given in this schedule. It will be noted that the schedule
envisages commissioning of the first unit of the plant in 27 month from ‘go-
ahead’ and the second unit 30 months.
ADVANCE ACTIONS
The project due to its large investment stands to gain substantially if the actual
construction and implementation period is kept to the minimum. For this purpose it
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is necessary that the planning and preparatory work on the project be done in a
thorough manner, which will ensure that the project construction and
implementation once started can proceed uninterrupted and without any delays. The
start date (Zero date) for the construction schedule is reckoned as the completion of
these advance actions.
The advance actions on the project which will provide the appropriate foundation for
cost effective and timely implementation are:
i) Acquisition of land at the selected location
ii) Site survey and preliminary soil investigations
iii) Environmental clearance for implementation of the project
iv)Finalization of the financing arrangements for the project and the creation of a
project organization
v)Finalization of the adequate details of the project to enable site activities to
commence from the date of ‘go-ahead’.
vi) Issue of inquiries for the major packages and finalization of the orders for the
same
vii) Actions for linkages of power, water and other infrastructure.
SITE DEVELOPMENT & CONSTRUCTIONS FACILITIES
Site development activities include contour survey, soil investigation, site
preparation, site drainage, construction water, construction power, construction
storage yards etc. Activities related to site acquisition surveys and soil investigations
will envisage to be accomplished by the time the ‘go-ahead’ for project commences.
Establishment of construction power, water site preparation and other activities will
be completed in three (3) months from ‘go-ahead’.
Special efforts will have to be made during implementation to keep the earthwork and
the site preparation to the minimum both for cost savings as well as reduction in
construction time.
CIVIL & STRUCTURAL WORK
The schedule for carrying out the civil work and structural steel work is based on the
volume of work and interlink between the completions of some of these activities to
enable the subsequent activities to proceed. Structural steelwork covers all the
building structures. In order to meet the overall time-frame envisaged in the
schedule, the completion of civil and structural work in a time-bound manner is a
pre-requisite for the project completion for the schedule.
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EQUIPMENT MANUFACTURE & DELIVERY
As indicated earlier, as an advance action, specifications will have to be issued for the
various plant and equipment, on a reputed manufacture / tenders basis and will be
evaluated and orders to be finalized. Major packages will cover material handling
system and Power plant, and these will need to be tendered out. Placement of order
for such packages is envisaged within two (2) months to (4) months from the date of
go ahead for project construction. It is assumed that advance work on the
preparation of specifications, evaluation of tenders and readiness for placement of
orders will be taken. The duration generally accepted internationally for manufacture
and delivery of various equipment have been taken into account while evolving the
implementation schedule.
The delivery schedule of equipment for power, water, utility and other auxiliary
systems has been so framed that they can be commissioned in time to cater to the
respective plant facilities for their commissioning.
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EQUIPMENT ERECTION
Erection of equipment will have to commence after availability of fronts on completion
of the civil and structural work as well as delivery of equipment at the plant site. It is
expected that the duration for erection of equipment for plant facilities will vary
between (10) months and (16) months from the date of commencement of equipment
erection.
EXTERNAL FACILITIES
The various off site facilities such as external water supply, external power supply ,
road links etc will be implemented to suit the schedule envisaged. It is expected that
the above facilities will be ready well prior to commencement of trial runs and
commencement of the various plant facilities.
TRIAL RUNS & COMMISSIONING
A period of 2 months has been envisaged for carrying out trial runs.
PROJECT MONITORING
At the project implementation stage, all project activities from design and engineering
to construction, equipment supply, erection, testing and commissioning of the plant
and equipment will be monitored on the basis of a computerized network monitoring
system. Various reports as relevant for different aspects of project monitoring will be
generated through the computerized system.
Action points will be identified agency-wise and actions taken for timely
implementation the milestones to be achieved for meeting this schedule will be
identified and monitored for their achievement. Critical activities of the project as
they arise, will also be identified and monitored and followed up to ensure timely
completion.
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8.2 Estimated project cost along with analysis in terms of economic viability of
the project
COST OF PROJECT
The estimated cost of the project is Rs 1400 Crores including pre-operative expenses
and margin money for working capital requirements. The financing and pre-operative
cost has been considered based on the proposed financial package.
Particulars TOTAL in Lacs
Land and Site Development 6000.00
Civil &Building 16250.00
Plant & Machinery 100500.00
Preliminary Expenses 2250.00
Consultants Fees 2250.00
Pre-Operative Expenses 5750.00
Margin Money on Working Capital 3500.00
Contingencies 3500.00
TOTAL 140000.00
The financing and pre-operative cost has been considered based on the proposed
financial package.
MEANS OF FINANCE
The project is proposed to be financed at a debt equity ratio of 2:1. The promoters
contribution will be met out of internal accruals and shortfall, if any, would be met
out of unsecured loans (interest free) brought in by the promoters.
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CHAPTER-IX
Analysis of proposal (Final Recommendations)
9.1 Financial and social benefits with special emphasis on the benefits to the
local people including tribal population, if any, in the area
The proposed 350 MW Power plant will result in improvement of infrastructure as
well as upliftment of social structure in the area. The people residing in the nearby
areas will be benefited directly and indirectly. It is anticipated that the proposed
power plant will provide benefits for the locals in two phases i.e. during construction
phase as well as during operational stage of the plant.
• Construction Phase
Employment
The major benefit due to the proposed project will be in the sphere of
generating employment for about 700 persons in that area. The proposed
project will benefit local population.
• Operational Phase
Community Services
SEML will employ local people to the extent possible for avoiding creation of
additional infrastructure. SEML will develop medical facilities for catering to
the needs of the project personnel. These facilities will also be extended to the
local community in due course.
Education
SEML will initiate action for social up liftment in the area like female education,
vocational training. Financial support will also be extended to strength education
infrastructure in the region.
Employment
The manpower requirements for the operational phase of the Power Plant will be
about 700 people. In addition, there will be an indirect employment for skilled/ semi
skilled people during project life. All attempts will be made to employ suitable, locally
available, skilled personnel from the study area. In case of non-availability of skilled
persons, people will be employed from out side the study area.
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Transportation
There will also be small increase in the vehicular traffic due to passenger transport.
This increase in traffic will not have any consequence to warrant special mention.
One should expect that the increased passenger load in the sector would prompt the
state government/ private movers to start new and frequent public transport services
to this area, bringing up liftment to the whole locality.
Other Benefits
SEML is equally conscious for the all round socio-economic development and is
committed to raise the quality of life and social well being of communities where it
operates. Its CSR initiatives have been prioritized on local needs, which focus on
Health, Education, Infrastructure Development and Environment Conservation.