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Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 1
PRE-FEASIBILITY REPORT
OF
1 x 660 MW SUPERCRITICAL LIGNITE BASED
THERMAL POWER PLANT (EXPANSION)
AT BHADRESH, BARMER (DIST), RAJASTHAN
RAJ WESTPOWER LIMITED BARMER
DECEMBER 2014
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 2
Table of Contents
______________________________________________________________________
Chapter Title Page
______________________________________________________________________
1.0 Executive Summary 3
2.0 Introduction of the Project 11
3.0 Project Description 14
4.0 Site Analysis 36
5.0 Planning Brief 39
6.0 Proposed Infrastructure 41
7.0 Rehabilitation and Resettlement (R & R) Plan 44
8.0 Project Schedule & Cost Estimates 45
9.0 Analysis of Proposal 46
ANNEXURE -1 PRELIMINARY PLANT LAYOUT
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 3
1.0 EXECUTIVE SUMMARY
Raj WestPower Limited (RWPL), a subsidiary of JSW Energy Limited proposes
to set up 1x660 MW lignite based supercritical thermal power plant at Bhadresh,
Barmer Dist, Rajasthan as expansion project to the existing operating 8x135 MW
power station.
RWPL presently has a fuel supply arrangement with Barmer Lignite Mining
Company Limited (BLMCL) for supply of lignite from the captive mines of Jalipa
and Kapurdi lignite mines for the existing operational plant of 8x135 MW. The
power generated from the plant is being sold to the Distribution companies
(DISCOM) of the state of Rajasthan through a long term PPA.
RWPL through the mining company, proposes to seek permission to expand the
lignite mining capacity from the above mines to facilitate supply of lignite for the
expansion project and to supply power to the state at competitive rates by way of
sharing the existing facilities to the extent possible.
About 220 Acres of land required for the project is available excluding area
constructed for the existing project and its the green belt. This available land
will be used for the project by most optimized layout with its required green
belt. The present land is adequate and no additional land requirement is
envisaged.
RWPL is desirous to adapt super-critical technology for the proposed power
project, in order to make the power production more energy efficient and
minimum environmental impact.
1.1 Justification of the project
Total installed generation capacity available for Rajasthan as on August, 2014
is about 15,460 MW (as per CEA) including the central allocation. Coal 8,784
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 4
MW, Gas 825 MW, Nuclear 573 MW, Hydro 1,638 MW and Renewable 3,640
MW.
As per the Long term demand forecast for the state of Rajasthan, the peak
demand is going to increase from existing 10,000 MW to 13,886 MW in 2017-
18 (at the end of 12th five year plan) and to 19,692 MW in the year 2021-22 (
at the end of 13th five year plan).
Based on above following conclusions can be drawn:
The state of Rajasthan although has good amount of installed capacity, but
the power generation is dependent on the wind, solar energy and on
availability of gas. The State is likely to face shortage of power by end of 12th
Plan and the situation will further aggravate by FY-2021-2022 (by the end of
13th Plan). Hence, even after completion of the proposed 1x660 MW power
plant project by FY 2019, power shortage will continue to remain high for
considerable period of time in the State of Rajasthan.
In India, since the hydro production is seasonal and its maximum
production does not coincide with the system peak, therefore the power
system cannot rely only upon firm hydro capacity. Wind generation in the state
is also seasonal and does not coincide with the peak demand. Solar generation
has very low PLF. The solar energy still needs to be properly integrated into the
power demand and generation cycle with respect to its availability. With the
recent state of affairs in the coal sector of the country, there is considerable
uncertainty in implementation of future coal based power generating projects,
which are planned to be commissioned in 12th plan (2012-2017) and 13th Plan
(2017-2021). Further a considerable amount of capacity in the upcoming
projects in the state is planned on gas, which does not look viable due to very
high volatility in the gas prices. Therefore this proposed power project, which is
based on lignite mined from the already operating captive mines is more viable
option and will provide reliable power at a reasonable cost to the consumers of
the State.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 5
In view of the above, the implementation of the proposed 1 x 660 MW power
plant is fully justified. This project, when implemented, will play a vital role as a
reliable source of power to the State of Rajasthan and further development of
industries and society.
This pre-feasibility report is the base document for the application for
environmental clearance for the project.
1.2 Land Requirement and Land type of project area:
Presently RWPL has 1186 acres of land in possession. After completion of 8 x
135 MW power plant and its required green belt, about 220 acres of land is
available the expansion project. This available land is adequate for the
construction of the 660 MW expansion project with its required green belt. The
proposed power plant consisting of Main power block including space for FGD,
Balance of Plant, Natural/Induced draft cooling tower, 400 KV Switchyard,
Clarified water pump house, Water pretreatment, lignite handling and storage
etc. will occupy about 50 acres through a proper optimisation of the layout.
Ash Pond area including Ash Plant area, will occupy 100 acres and green belt
will occupy about 70 acres. A tentative outline alignment of the plot and plant
Layout is shown in Exhibit-1.
Presently the land is in the possession of RWPL & its Industrial Land. The
project is not located near river, forest or wild life sanctuary. The project has
well established connecting roads. There are no inhabitant at site therefore
there are no R&R issues.
1.3 Water Requirement: Quantity and source for industrial and domestic use
The plant water requirement for proposed 1 x 660 MW supercritical power
plant for condenser cooling, cycle make up and other consumptive
requirements after pre-treatment is estimated to be about 1562 m3/hr
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 6
including water requirement for recirculating closed cooling water system with
the Natural/Induced draft cooling towers. Stringent cycle of concentration
(COC) of 10 is considered to reduce the water consumption. The major
quantity of clarified water will essentially be the makeup water for the cooling
towers to compensate the loss on account of evaporation, drift and blow down.
Water required for coal handling, ash handling and APH/ESP wash systems
will be taken from cooling tower blow down tank.
In a worst case if RWPL is required to adapt Air cooled condenser (ACC) the
water requirement would be about 700 m3/hr. However use of ACC will
reduce plant efficiency, increase use of fuel and lead to higher emission.
Other water efficient condenser cooling is also being explored.
RWPL has water allotment of about 8160 m3/hr (80 cusecs) for power
generation from Indira Gandhi Nahar Pariyojana (IGNP) canal located about
184 km from the power plant site. Present the water consumption is about 3500
m3 /hr (35 cusecs). The water for the 660 MW expansion project will be
sourced from the unutilized raw water allotment from IGNP using existing water
pumping and the conduit system.
1.4 Fuel
Domestic lignite is considered as main fuel from Jalipa-Kapurdi Lignite Mines
located adjacent to the proposed Power Plant. Environmental clearance is
available for 9 MTPA production capacity. The GCV of Lignite varies from 2100
kcal/kg to 3500 kcal/kg with an average of 2900 kcal/kg. The Annual Lignite
requirement for the proposed 660 MW power plant at 85% PLF based on the
Gross Plant Heat rate of 2438 kcal/kwh considering the design lignite of GCV
2900 kcal/kg would be 4.5 million Tons per annum. Lignite will be transported
from mines to the proposed power plant through system of conveyors. The
associated mining company will obtain EC of the additional Lignite requirement.
The secondary fuel would be HFO as per IS: 1593 or LDO conforming to IS:
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 7
1460. Fuel oil would be used for light up / initial warm and for flame stabilization
at low loads. During normal operation, the fuel oil requirement is expected to be
about 15.84 m3/ day and annual requirement is estimated to be about 491499
m3/annum, considering CERC norms of 1ml/kWh. Fuel oil for the power
plant would be made available from any of the public sector oil companies
nearest to the plant location.
1.5 Power Evacuation
Evacuation of power from the proposed power plant will be done at 400 kV level
through 400 kV transmission lines connected to Jodhpur S/S & Barmer S/S of
RRVPNL.
1.6 Manpower requirement at construction and operation phases
The construction will be done by the contractors and estimated 3000 persons will be
employed during this phase. RWPL’s project monitoring team will carry supervisory
activities. For operational phase manpower requirement estimate is 500 of the
proposed project.
Employment shall be generated for local people in surrounding villages and only
highly skilled manpower will be sourced from outside area.
1.7 Type and Quantity of solid and liquid waste to be generated and its
management
About 86,000 tons of ash per month will be generated. RWPL proposes to achieve
100% ash utilization by exporting ash to the surrounding cement plants and brick
industries in line with the requirements of MoEF notification. Also ash will utilized in
ash-dyke raising, Road works, ready-mix concrete, lightweight aggregate and
agriculture applications. Unused bottom ash will be disposed to ash dyke or mine
filling.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 8
Water effluent will be recycled and remaining effluent will be used in greenbelt
development and Ash handling.
1.8 Green belt development programme
The proposed project is being established in the premises of present power plant area.
Green belt is being developed in 1/3 area (391acres) of the total power project (
present +expansion) area of 1186 acres as per MOEF guidelines. The green belt will
be developed using the locally adapted plant species.
1.9 Rehabilitation and Resettlement Plan
The proposed project is within existing power plant land owned by RWPL. No human
settlement exists on the identified land. No agriculture activity is done on the identified
land. The land does not belong to private ownership. Hence no Rehabilitation and
Resettlement is required.
1.10 Project schedule and cost of Project
Likely date of start of construction: Within two months after obtaining Environmental
Clearance (EC)
Likely date of completion of construction: August 2018 ( 36 month after EC)
The estimated project cost is Rs. 4620 crores.
1.11 Financial and Social Benefits
The proposed project is expected to contribute towards upliftment of the quality
of life of the local people and it will generate inputs for industrial/economic
development in the region. The following measures are on going for minimizing
the adverse impacts on socio-economics and parameters of human interest:
Communication with the local community is being institutionalized and done on
regular basis by the project authorities to provide an opportunity for mutual
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 9
discussion.
RWPL is organizing regular awareness programmes to bring forth beneficial
aspects of the project and social welfare measures being undertaken for
improving their Quality of Life.
Social welfare activities are being undertaken by the project authorities, in
collaboration with local administration, Gram Panchayat, Block
Development/Tehsil Offices etc. for better co-ordination, records and also
involing the local public.
Based on baseline status of the study area and the likely adverse impacts of
the project, the following measures are implemented for desirable achievement
of goals from the project:
Workforce available locally, are employed depending upon their
suitability.
Mobile dispensary is maintained for medical check-up and also for
providing basic essential medicines to the villagers.
Providing credit support to the women folk as part of welfare activities to
greatly enhance and improve their economic strength. In order to make
them aware and understand the system of composite credit mechanism,
self-help women groups is encouraged in nearby villages and proper
training is being imparted.
Job oriented skill training courses is being organized through
Industrial/Technical Training Institutions for educated youth (both for
male and female), like O&M of electrical, home appliances, tailoring,
plumbing, secretarial/computer literacy, automobile repairs, welding and
fabrication and any other project related specific trades.
Entrepreneurship Development Programme (EDP) is being undertaken
both for male and female, irrespective of their educational qualification in
the areas like cattle, goat and sheep rearing, poultry farm, dairy farm,
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 10
weaving, envelop making, soap making etc. based on the local facilities.
To strengthen existing education facilities in the surrounding villages, the
following measures are undertaken:
Required support for additional class rooms/schools
Providing teaching aids to village schools
Scholarship or awards to meritorious students
Awareness programmes to help and educate the local people about potential
hazards and the Disaster Management as well as Environmental Management
Plan is being undertaken at project site in collaboration with local
administration.
As regards, aesthetic environment, development of social forestry and road
side plantations will be encouraged through tree plantation derives in the
project region.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 11
2.0 INTRODUCTION OF THE PROJECT/ BACKGROUND
INFORMATION
2.1 Identification of project and project proponent
2.1.1 Project proponent
RAJ WESTPOWER LIMITED (RWPL) is subsidiary company of JSW Energy
Limited, has already established its infrastructure for water, ash pond,
switchyard for power evacuation, land and other facilities like office, colony etc,
for its operating 8 x 135 MW power plant. RAJ WESTPOWER LIMITED now
proposes to setup 660 MW Super Critical Lignite coal based expansion power
plant at the same site at Bhadresh village in Barmer district Rajasthan.
2.1.2 Identification of project
PROJECT AT A GLANCE
Project proponent M/s Raj WestPower Limited, Barmer, Rajasthan
Company Name M/s Raj WestPower Limited
Type of project 1 x 660 MW Super Critical Expansion Project
Category of Project Category A ,
S.No in the schedule as per
EIA notification, 2006 Schedule 3, Thermal Power Plant
Total area 220 Acre
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 12
Location Village Bhadresh of Barmer district ,Rajasthan at
Captive mine head
Village Bhadresh
District Barmer
State Rajasthan
Latitude 25º 53’ 28” to 25º 53’ 31” N
Longitude 71º 19’ 13” to 71º 19’ 51” E
Near by Features
Highways-NH-15-Approx. 8.0 km- East
Railways- Barmer Railway Station-Approx 25 km-
East
Airport- Jodhpur Airport-Approx .200 km- East
Village /Town-Bhadresh Village-Approx.1.5 km-
West
Eco- Sensitive area No National Park, Wildlife Sanctuary, biosphere
reserve area within the10 km radius of project site
2.1.3 Demand Domestic/Export
Power produced from this proposed expansion project will be sold to Rajasthan
DISCOMS through Power Purchase Agreement (PPA)
2.2 Brief Description of Nature of the project
The expansion of the operational consented 1080 MW (8X135 MW) capacity
thermal power plant to 1740 MW (8 x 135 + 1 x 660 MW) near village
Bhadresh, District Barmer, Rajasthan, is an initiative of Raj WestPower Limited
(RWPL) of JSW group. The electricity generated from this project activity will
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 13
be sold to DISCOMS of Rajasthan Vidyut Vitran Nigam Limited (RVVNL). Fuel
requirement of the proposed project will be met through lignite from the captive
Kapurdi and Jalipa mines located about 3-4 kms from the proposed project site,
The lignite will have GCV in the range of of 2100 kcal/Kg to 3200 kcal/kg, Max
sulfur content of 2.0% and maximum ash as 20%. Proposed project will adopt
clean fuel technology by installing Pulverised Fuel (PF) supercritical steam
generator and steam turbine.. The supercritical power plants have higher
efficiencies, therefore consumes lesser fuel and lesser environment impact.
The steam generator of PF type for the expansion units ( 660 MW ) would be
rated to generate about 2150 t/hr of superheated steam at 255 kg/cm2 (a)
pressure and 566 +50C temperature. The reheat steam temperature would be
595 + 50C. The steam generators would be equipped with facilities for fuel oil
firing for start-up. Source of raw water would be from Indira Gandhi Nahar
Pariyojana (IGNP) canal. Canal water would be pumped to the plant by the
existing canal water pumping system. All pollution control measures shall be
undertaken to minimize any adverse impact expected on the surrounding
environment. Generated fly ash shall be utilized in cement, concrete industry,
fly ash aggregate making industry and road making/paving brick making/back
filing in the abandoned mines from day one of the date of commissioning.
2.3 Employment generation (Direct and Indirect) due to the project
The construction will be done by the contractors and estimated 3000 persons
will be employed during this phase. RWPL’s project monitoring team will carry
supervisory activities. For operational phase manpower requirement estimate is
500 of the proposed project.
Employment shall be generated for local people in surrounding villages and
only highly skilled manpower will be sourced from outside area.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 14
3.0 PROJECT DESCRIPTION
3.1 Type of project including interlinked and interdependent projects, if any
The project is a brown field Expansion project of 660 MW lignite based supercritical
electrical power generating power plant. The project will have interlinks with existing
operating 8 x 135 MW project to optimise the existing resources and facilities..
3.2 Location with coordinates
Feature Description
Location Village Bhadresh of Barmer district ,Rajasthan at
Captive mine head
Village Bhadresh
District Barmer
State Rajasthan
Latitude 25º 53’ 28” to 25º 53’ 31” N
Longitude 71º 19’ 13” to 71º 19’ 51” E
Near by Features
Highways-NH-15-Approx. 8.0 km- East
Railways- Barmer Railway Station-Approx 25 km-
East
Airport- Jodhpur Airport-Approx .200 km- East
Village /Town-Bhadresh Village-Approx.1.5 km-
West
Eco- Sensitive area No National Park, Wildlife Sanctuary, biosphere
reserve area within the10 km radius of project site
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 15
Location (map showing general location, specific location, and project boundary
and project site layout) with coordinates is attached. The location of site with
type of land and boundary coordinates is as below:
Map of Project Site
Project Layout with coordinates is attached as Annexure #1
3.3 Details of alternate sites considered and the basis of selecting the
proposed site, particularly the environmental considerations gone into should
be highlighted
Not Applicable. As expansion is proposed in the existing site
3.4 Size or magnitude of operation
With proposed expansion the magnitude of operation is 1760 MW (8 X 135 MW
Existing + 1 X 660 Proposed) Power generation.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 16
3.5 Project Description with process details
Project Description
The project is 1 x 660 MW capacity lignite coal based supercritical thermal
power plant. This project is expansion project of operating 8x135 MW units.
Process Details
The power generation process is based on Rankine steam cycle using high purity
water converted to high pressure and high temperature steam with supercritical
parameters as the working medium. The salient parameters of the process are as
below.
1. Main Steam temperature 566 +50C
2. Main steam Pressure 595 +50C
3 Reheat steam temperature 255 kg/cm2 (a)
4 Turbine Cycle Heat Rate: 1850 Kcal/Kwh
5 Steam Generator Efficiency 79.3%
6 Temperature raise across condenser 10 Deg C
7 Cycle of Concentration for condenser
cooling water
10
8 Design Wet Bulb temperature for
cooling tower:
28 Deg C
9. GCV of lignite design: 2900 Kcal/Kg
10 Condenser cooling Clarified raw water
MECHANICAL SYSTEMS
Steam Generator & accessories
The steam generator (SG) would be once through type and would be designed
for firing lignite of GCV 2900 kCal/kg from the mines of Kapurdi and Jalipa. The
SG would be pulverised fuel (PF) single pass tower type design or circulating
fluidised bed combustion (CFBC), single reheat, balanced draft, dry bottom and
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 17
semi outdoor type. The capacity would be 2 % more than the VWO flow
requirement of Steam turbine. Indicative design parameters for the steam
generator are as below.
a. Superheater outlet pressure 255 Ksc(a)
b. Superheater outlet temperature 568°C
c. Superheater outlet flow 2150 TPH
d. Re-heater outlet pressure 71 Ksc(a)
e. Re-heater outlet temperature 596°C
f. Feed water inlet temperature to economizer 294°C
The steam generator would have a fuel burning system of corner fired or front
and rear wall mounted type in case of PF or fluidised bed in case of CFBC. The
furnace would be appropriately sized to avoid slagging in the water wall
section, pendant/platen super heaters and re-heaters and in the heat transfer
surfaces in convection pass.
The lignite burning system would be of proven advanced design to reduce NOX
production and the furnace would also be provided with over fire air ports to
further reduce NOX production.
The SG would be provided with circulation system comprising steam
separators to remove water moisture from the evaporator outlet and to
recirculate the water into economizer inlet, for use during startup. The SG
and steam turbine generator (STG) would be designed for modified sliding
pressure operation, which would increase turbine cycle efficiency and reduce
boiler feed pump power consumption. The load range for sliding pressure
operation would be from about 40% TG maximum continuous rating(TGMCR)
to 90% TGMCR and constant pressure operation from 90 % to 100
%TGMCR.
The SG would consist of water cooled furnace, radiant and convection super-
heaters, re-heaters, economizer, regenerative air heater, steam coil air
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 18
preheaters. Sequential/selective type soot blower system would be
provided with soot blowers located at strategic locations for cleaning the
slagged and fouled heat transfer surfaces during operation.
The SG would be provided with the required number of beater lignite mills,
preferably with side mill arrangement which will occupy less space and ease
the equipment layout in case of PF steam generator. The milling system would
be so designed that two (2) mills would be spare with unit operating at BMCR
capacity firing design lignite and one (1) mill as spare with unit operating at
BMCR capacity firing worst lignite. The lignite mills would be using the hot flue
gas from the exit of the furnace for the drying of the lignite. These mills will be
provided with classifiers to control the fineness of the ground lignite thereby to
control the unburnt carbon losses. The lignite mills would be provided with
gravimetric lignite feeders. In case of CFBC lignite crushing will be done at
primary and secondary crushers to the required size.
The SG would be designed to handle and burn HFO/LDO as secondary fuel
upto about 22.5% SGMCR for start up and for flame stabilization with steam
atomization, during low load during mill changeover. For unit light up and warm-
up purposes also, LDO firing system with air atomization would be used.
The draft plant would comprise primary air fans, forced draft fans and induced
draft fans. The primary and forced draft fans would be of axial blade pitch
controlled axial type. The induced draft fans would be axial blade pitch
controlled axial type or speed controlled (VFD) centrifugal type.
Electrostatic precipitators (ESP) would be provided for the collection of fly ash.
The ESP would be so designed that for worst lignite firing an outlet dust
concentration of 100 mg/Nm3 with one field out of service as stipulated by
State/Central Pollution Control Boards would be achieved.
Steam Turbine, Accessories & Cycle Equipment
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 19
Steam Turbine
The steam turbine generator (STG) would be rated for 660 MW maximum
continuous output at generator terminals, with throttle steam condition of 242.2
bar(a) at 565°C main /593°C reheat steam, 0.1 bar(a) condenser back pressure
with 1.5 % make up. The STG output at valve wide-open (VWO) condition
would be 5% above the maximum continuous rating.
The steam turbine would be a three cylinder, reheat extraction and condensing
turbine. The turbine generator would be complete with all accessories such as
protection system, lube and control oil system, seal oil system, jacking oil
system, seal steam system, turbine drain system, electro-hydraulic control
system, automatic turbine run up system, on-line automatic turbine test
system and turbine supervisory instrumentation.
The turbine generator would also have all necessary indicating and control
devices to permit the unit to be placed on turning gear, rolled, accelerated
and synchronized automatically from the control room.
Plant water steam cycle
The condensing plant would comprise two water cooled condensers or air
cooled condenser, one each for the two LP turbines. The exhaust steam from
the LP turbine will be received from each condenser would be of one pass
design. 2x100% capacity vacuum pumps would be provided to create vacuum
in condenser during start-up and to remove the non-condensable gases
liberated during normal operation.
The regenerative cycle would normally consist of four low pressure heaters, a
variable pressure Deaerator, three high pressure heaters, one drain cooler and
one gland steam condenser.
Bypass system
The STG unit would be provided with a HP-LP bypass system having capacity
of 60% of SGMCR flow.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 20
Condensate Pumps
The condensate from the condensate hot-well would be pumped by
3x50% capacity condensate pumps (two working and one stand by) to the
deaerator through the gland steam condenser, drain cooler and low-pressure
heaters.
Boiler Feed Pumps
Feed water would be pumped from deaerator to the steam generator
through high-pressure heaters by means of 2x50% capacity steam turbine
driven boiler feed pumps or 2x50% Motor Driven Boiler Feed pumps. A 50 % or
30% capacity duty AC motor driven standby boiler feed pump would be
provided to facilitate start-up of the unit.
Low Pressure Heaters
The low pressure (LP) heaters would be of shell and tube with stainless steel
U-tubes (seamless/welded) welded with their ends rolled in carbon steel tube
sheets.
Deaerator
The deaerating feed water heater would be a direct contact, variable
pressure type heater with spray-tray type or spray type of deaeration
arrangement.
High Pressure Heaters
The high-pressure (HP) heaters would be of shell and tube with stainless steel
U-tubes (seamless/welded) welded with their ends rolled in carbon steel tube
sheets.
Gland Steam Condenser
A surface type gland steam condenser would be used to condense the gland
steam exhausted from turbine glands.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 21
Condensate Polishing Unit
In order to maintain high purity of the feed water, 3X50% capacity condensate
polishing units (CPU) are envisaged in the condensate system for each unit.
Chemical Dosing System
AVT (All volatile treatment) and oxygenated treatment is considered. Ammonia
dosing system would be provided to ensure chemical conditioning of the
condensate/feed water for controlling the alkalinity. The ammonia solution
would be injected into the condensate at the condensate extraction pump
discharge during start ups.
Fuel Oil System
The annual requirement for the proposed 660 MW unit would be about 4914
m3 based on consumption of 1ml/kWh (CERC guidelines) of power generation.
The daily average consumption of HFO/LDO would be about 15.84 m3 /day.
Water System
The water would be used for condenser cooling (for water cooled condenser),
cooling of SG and TG auxiliaries and various other requirements like SG
makeup, service and fire protection system etc. Various sub-systems water
systems are indicated below.
1. Raw Water system
2. Condenser Cooling Water (CW) system for water cooled condenser
3. Clarified Water system
4. DM Water System
5. Condenser Auxiliary cooling water (ACW) system
6. Water treatment (WT) system
7. Service water system
Raw Water Supply System
The daily requirement of raw water for the proposed plant expected to be
37,488 m3/day for water cooled condenser and 16,800 m3/day for air cooled
condenser.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 22
Condenser Cooling system
For water cooled condenser, recirculation type cooling system with
Natural/Induced draft cooling tower (N/IDCT) of around 84000 m3/hr is
proposed. The cooling tower would be designed for a cooling range of 10 Deg
C and an approach of 5 Deg C. The design wet bulb temperature would be
about 28 Deg C. The design hot and cold water temperatures of the cooling
towers would be 42 Deg C and 32 Deg C respectively. For Air cooled
condenser will be designed for an ambient of 42 Deg C.
Clarified water System
The raw water will be clarified in clarifier. The clarified water will be directly
used for the CW makeup, plant service & fire water system without any further
treatment. The clarified water will be stored in tank sized for adequate storage.
The possibility of augmenting the requirement of the expansion project with
existing system shall be studied and same shall be adopted to the extent
possible without compromising the reliability of the current system.
Chlorination system will be provided at the inlet of clarified water storage tank.
Total clarified water requirement for 1X660MW for WCC and ACC is estimated
to be 37,488 m3/day and 16,800 m3/day respectively. Break up of plant water
requirement for various utilities are given in Table below:
Plant Water Requirements
Sl. No. Item Estimated Qty
M3/day (WCC)
Estimated Qty
M3/day (ACC)
1.0 CW make up for Condenser
Cooling/Auxiliary Cooling Water
34056 8600
2.0 DM Water requirement 1008 1200
3.0 Service water for plant & HVAC makeup
water , ash handling coal handling etc.
2424 7000
4.0 Total Clarified water required 37488 16800
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
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Blow Down and Make-Up Water Requirements for CW/ACW cooling tower
For WCC make-up water requirement of CW system is obtained as the sum of
drift and evaporation losses from the cooling towers and blow down from the
CW system. In order to conserve water, the blow down would be utilised to
meet the water requirement of the lignite and ash handling system.
A stringent cycle of concentration (COC) of 10.0 has been adopted for CW
system to conserve water.
In case of ACC make water is required for cooling tower of ACW system.
Make-Up System
Make up water to cooling system shall be supplied by CW makeup pump.
3X50% CW makeup pump will supply the Clarified water from clarified water
storage tank.
CW Chemical Dosing System
Chemical dosing is required to prevent scaling and corrosion due to the
operation of the CW system at this COC.
To prevent / control algae growth in the CW system, chlorine dosing will be
provided.
DM Auxiliary Cooling Water (DMACW) System
Closed loop system using passivated DM water ACW system shall meet the
cooling water requirements of all the auxiliary equipment of the TG and SG
units such as turbine lube oil coolers, seal oil coolers, stator water coolers, BFP
auxiliaries such as lube and working oil coolers, seal water coolers, drive
motors and sample coolers etc.
Water Treatment Plant
The water treatment plant broadly consists of filtration followed by a DM
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 24
(Demineralisation) plant which will provide DM water to meet steam generator
make up and ACW system make-up.
Service & Potable Water Systems
The service water system supplies water required for HVAC system and misc.
requirements of station building. Potable water system will be derived from the
clarified water after required chlorine dosing.
Fire Protection System
An elaborate fire hydrant system covering all the buildings of the proposed
power plant boundaries including lignite stockyard would be provided. The
water would be drawn from the raw water storage tank and reserve capacity of
2000 m3 earmarked for the system.
Effluent Re-Use
The effluents from DM plant neutralising pit, from plant drains, from oil
separator, back wash form side stream filter etc. will be collected in a CW blow
down tank for further re use. CW blow-down water would be re-used for lignite
handling system, ash handling system, plant washing and ESP/APH washing.
Effluent zero discharge concept will be adopted for the proposed plant using
suitable effluent treatment plant, sludge thickener and RO.
Lignite Handling System
The lignite for the power plants will be received by conveyors directly from the
mines. The existing conveyor for the operating plant will be either augmented
or additional conveyors will be erected to meet the requirement with necessary
redundancy. The lignite will be stored in the store yard using stackers. The
lignite for the power plant will be reclaimed from the lignite storage yard and
conveyed to the bunkers at the Boiler. There shall be direct arrangement to
feed lignite to the boiler lignite bunkers from the conveyors from mine.
System Capacity
For 1x660 MW TPP daily lignite requirement considering the design lignite
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
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would be 12742 tons, however for the worst lignite the same would be 19308
tons. The annual lignite requirement for the design lignite is about 4.5 MTPA
with 85% PLF. Lignite handling system capacity would be 1450 TPH which
would be sufficient to meet the requirement of worst lignite at service factor of
approx. 60%.
Dust Control
Dry fog type dust suppression system would be provided at all transfer points in
the junction towers. The bunker ventilation system would be provided with dry
type bag filters with cyclone to trap the dust generated while loading lignite into
bunkers and to vent out dust free gases/air.
Ash Handling System
The following would be the design criteria for the proposed ash handling system:
Hourly lignite firing rate at MCR condition ( Design lignite ) 530.94 TPH
Hourly lignite firing rate at MCR condition ( Worst Design lignite ) 769.86 TPH
Ash generation for the worst lignite firing (Ash content 20%)
considered for the design of ash handling system
155TPH
Distribution of total ash produced as
Bottom ash 20 %
Fly ash 80 %
Volume occupied by one ton of ash in storage area 1 m3
PLF 100%
Dry type bottom ash removal system is proposed for bottom ash removal. The
bottom ash shall be cooled and conveyed using special conveyor system.
Large size clinkers will be crushed and stored in the silo. This ash would be
disposed off by trucks.
Fly ash removal system would be either vacuum-cum-pressure type or
pressure type pneumatic system with dry disposal by closed trucks for
utilisation with provision for disposal to ash disposal area in high concentrate
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
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Limited
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slurry form in emergency.
The water required for slurry formation and ash conditioners would be met from
CW blow down. However, service water would be used for jacket cooling
of air compressors, silo / ESP aeration blowers etc.
Bottom ash handling system
A maximum of 20% of the total ash produced by each steam generator
would be collected as bottom ash in dry form. The bottom ash hopper would
have a capacity to store about eight (8) hours collection of bottom ash.
Fly ash handling system
The fly ash handling system would be dense phase pressure pneumatic type.
The fly ash collected in the ESP hoppers, air preheater hoppers, economizer
hoppers and stack hoppers would be evacuated pneumatically. Air
compressors of suitable capacity would be installed for conveying fly ash from
ash hoppers to fly ash silos. Clearance of ash from hoppers connected to
common fly ash header would be done one after other. Shifting of ash
clearance cycle from one hopper to the next will be automatic. The ash
collected in each fly ash hopper would be conveyed to ash silo.
Fly Ash Storage Silo and Disposal of Fly Ash from Silo
There would be two (2) fly ash storage silos having a holding capacity of 2000
tones. Each silo would be provided with 5 outlets. Two outlets would cater to
unloading into road trucks / tankers through paddle type dust conditioner or
unloading spout. One outlet would be left blank. Two outlets to cater to HCSD
system during emergency.
Fly Ash Disposal System (Emergency)
The high concentrate slurry disposal system would be provided for ash disposal
during emergency conditions. The concentration of ash in the high concentrate
slurry would be about 55-60 % by weight. This slurry would be pumped by
HCSD pumps to ash disposal area.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
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Ash Disposal Area Development,
The ash disposal area is provided with LDPE/HDPE membrane so as to
prevent contamination ground water.
Ash Utilisation
The ash is proposed to be evacuated and stored in silos in dry form so that
most of it can be utilized / marketed in dry form.
The ash generated in thermal power stations has commercial value
because of its usage in cement and construction industries. Ash generated
from the proposed power plant will be commercially utilised in one or more of
the following industries, to the extent possible:
a) Cement industry
b) Brick/ Block/ Tiles manufacturing
c) Ash aggregate making industry
d) Road making / paving.
e) Roads and embankment construction
f) Structural fills for reclaiming low lying areas
g) Mines fill
h) Agriculture, Forestry and Waste land development
i) Part replacement of cement in mortar and concrete
Compressed Air System
For the requirement of instrument air and service air to meet the plant air
requirement adequate number of compressors (working and standby) with
suitable capacity will be installed.
Air Conditioning System
It is proposed to air-condition the unit control room, electronic cubicle room,
shift charge engineers room, printer room, maintenance engineers room, UPS
room, ESP control room, static excitation cubicle room, analyser panel room,
lignite handling control room, DM plant control room and switchyard control
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 28
room. Inside design conditions of 24.5 ± 1.50C dry bulb temperature and
relative humidity not exceeding 60% would be maintained in all air-
conditioned areas.
Ventilation System
For the ventilation of the station building, evaporative cooling system (Air
washer type) isenvisaged. This system consists of air washers, supply air fans,
air washer circulating water pumps, centrifugal fans and air distribution system
for distributing the supply air inside the station building. The exhaust of hot air
out of the station building would be achieved by provision of roof extractors and
wall mounted exhaust fans. For ventilation of other buildings, supply air fans or
louvers, exhaust air fans, roof extractors or a suitable combination of these
complete with louvers, filters, ducting & grilles would be provided.
ELECTRICAL SYSTEMS
Generator
The generator would be rated to deliver 660 MW at 21 kV, 50 Hz, 0.85-power
factor, at 3000 rpm. .
Generator Bus Duct
The terminals of the generator would be connected to the generator
transformer through Isolated Phase Bus Duct (IPBD). Generator Circuit
Breaker(GCB) shall be provided at 21 IPDB.
Generator Transformers
The generator transformer would step up generator voltage of 21 kV to the
switchyard voltage of 400 kV.
400 kV Switchyard
The switchyard equipment will be point of electrical connection to the state
electrical grid for the transmission of power to the grid. The switchyard consists
of breakers, isolators, lightning arrestors, current transformers etc..
Pre-Feasibility Report for 1x660 MW Thermal Power
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Auxiliary Power Supply System
Auxiliary power system provides electrical power to various plant electrical
equipments. The auxiliary power is derived from either generator output or from
the switchyard using transformers at various voltage level depending upon the
size of the power requirement of the auxiliaries using suitable switchgears.
Emergency Power Supply
The diesel generator of adequate capacity would feed a emergency electrical
power to identified auxiliaries to enable safe shut down of the power station
during a grid failure.
Battery DC System
Battery DC system of adequate capacity is used for power supply to certain
critical plant auxiliaries for the safety of the plant and personals during a
complete blackout.
Un-interruptible Power Supply System
Un-interruptable power supply of adequate capacity and battery backup is
provided to supply power to complete plant control and instrumentation system.
Electrical Equipment Protection Systems & Control
The selection of the protective scheme would be based mainly on reliability,
sensitivity, selectivity and technical merits. All main protections would be of
fast acting type in order to isolate the faulty system from the healthy system in
the shortest possible time, to minimise damage to the equipment and ensure
continuity of power supply.
Lighting System
Suitable illumination necessary to facilitate normal operation and maintenance
activities and to ensure safety of working personnel would be provided.
Safety Earthing and Lightning Protection
A safety earthing system comprising buried steel conductor earthing grid
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
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would be provided for the 400kV switchyard and other outlying areas. This
would be connected to the earth grids in various buildings. The buried earth
grids would be further connected to earthing electrodes.
Communication System
For effective communication in the plant, public address system, Electronic
private automatic branch exchange system (EPABX), landlines with ISDN /
PSTN facility, walkie-talkie, OPGW (Optical fiber ground wire) communication
link along with necessary terminal equipment will also be provided to ensure
fast communication between Switchyard &Local Dispatch Centre (LDC).
Fire Detection / Alarm and Fire Proof Sealing System
Addressable type multi criteria detector based fire detection and alarm system
would be provided to facilitate visual and audible fire detection at the incipient
stage of fire in strategically important areas of the power station.
INSTRUMENTATION & CONTROL SYSTEM
Plant Control System
The instrumentation and control (I&C) system for the plant is proposed to
be a comprehensive system integrating the functions of plant monitoring,
control and protection to facilitate the task of integration, co-ordination and
autonomous operation of the plant sub systems/equipment namely Steam
Generators (SG), Steam Turbine Generator (STG) and their associated
auxiliaries, balance of the plant equipment / systems, plant electrical
system, utility plants like lignite handling plant, Ash handling plant, DM water
plant, compressed air plant, Station common electrical systems including
Switchyard.
CIVIL ENGINEERING ASPECTS
Plant Layout
The layout of the main plant along with all the auxiliary systems for 1 x 660 MW
units is shown in PLOT PLAN- Exhibit-1. In laying out the various facilities,
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 31
consideration has been given to the following general principles:
a) Least disturbance to existing habitation and vegetation, if any
b) Predominant wind directions as given by the wind rose are duly taken
into account with a view to minimize pollution, fire risk, etc. The plot plan
indicates wind rose information.
c) Power evacuation corridor for connection to Rajasthan state grid.
d) Approach road to the power plant from the National Highway.
e) Availability of adequate space for fabrication / construction equipment
within the power plant boundary.
f) Availability of adequate space for labour colony during construction
stage
All facilities of the plant are laid out in close proximity to each other to the
extent possible so as to minimize the extent of land required. The layout also
facilitates communication of people and movement of materials between the
various facilities both during initial construction and also during subsequent
operation and maintenance.
Site Topography & Geology
The site grade level and type foundation will be decided after completion of the
topographical survey of the plant area. However the land for the plant area is
generally flat. The site geology generally has sandy soil layer present from
0.5m to 3.0m depth (RL 185.0). Thereafter the soil strata has a layer of dense
gravel upto 9.0m depth (RL 179.0). This gravel layer is about 4 to 6m thick.
Below this gravel and upto an explored depth of 20m is bentonite layer – a very
hard dense silty clay layer which is high plastic and expansive in nature. The
type of foundation will be decided after completion of geo technical
investigations. Presently no piling is envisaged.
Chimney
Single-flue chimney with common windshield has been envisaged for the
proposed thermal power plant. The height of chimney would meet the
requirement of Indian emission regulations. The flues would be of mild steel
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
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Limited
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construction of 7.5m exit diameter with glass wool insulation. The chimney
windshield shall be of RCC construction. Appropriate aviation warning system
would be provided for the chimneys as per regulatory requirements.
Raw water reservoir
The required raw water for 1 x 660 MW plant will be supplied from the existing
reservoir of adequate capacity.
ENVIRONMENT ASPECTS
Air pollution
High efficiency Electrostatic Precipitators (ESP) shall be installed to control the
emission of ash particles. The precipitators would be designed to limit the
particulate emission to less than 100 mg/Nm3 at 100% BMCR. To ensure safe
and optimum operation of the ESPs, each stream of precipitator would be
supervised and monitored by a separate microprocessor based rapper control
EP Management System (EPMS).
A chimney of suitable height will be provided to for the effective dispersal of air
borne effluents and meet the environmental norms. The chimney would be
provided with personal access for regular monitoring of stack emissions.
The lignite will be drawn from the existing lignite handling plant and to control
the fugitive dust emission within and around the lignite handling plant, dust
extraction and suppression systems shall be provided. Dust suppression
system is installed at all the transfer points in Lignite Handling Plant and at
lignite stockyard; no significant impact on air quality is expected. However,
fugitive dust emissions and NOx levels may temporarily increase in the
immediate vicinity of construction site due to soil excavation and vehicular
movement. Such impacts will be confined to the construction site. These will be
minimized by sprinkling water and proper maintenance of vehicles. Green belt
as recommended by EIA study wide will be developed all around the plant
periphery to minimize dust nuisance outside the plant boundary.
Pre-Feasibility Report for 1x660 MW Thermal Power
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Waste Water
Waste water from various systems as per enclosed water balance would be
reclaimed, treated and reused as a input to the RO plant so as to minimize the
consumption of water and to ensure zero discharge of liquid effluents from the
power plant.
Cooling tower blow down from CW system would be utilized for the RO system
and for lignite dust suppression. Decanted water from ash pond would be
recycled and reused in the ash handling system. The waste water from DM
plant regeneration and filter backwash would be first neutralized in the
neutralizing pit and then carried to the Central Monitoring Basin (CMB) i..e.
Guard Pond for final monitoring and treatment.
Wash water from Air Pre-heater would be first collected in a settling basin for
the collection of ash particles and then pumped to the Guard Pond. Blow down
water from the boiler as well as waste water from various plant drains, after oil
separation, would also be collected in the Guard Pond for final monitoring and
treatment. The treated effluent from the Guard Pond will be used for gardening,
green belt development and plantation work. Sewage from various buildings in
the power plant would be conveyed through various drains to septic tanks.
Noise Pollution
The plant is expected to increase the noise level in the surrounding due to
operation of plant and machinery. Necessary noise control and abatement
measures will be adopted to minimize the noise level from the plant during
construction and operation phase to a maximum of 85 dBA as per the
requirement of OSHA (Occupational Safety and Health Administration)
Standards. The major sources of noise during the construction phase are
vehicular traffic, construction equipment like dozers, scrapers, concrete mixers,
cranes, generators, pumps, compressors, rock drills, pneumatic tools, saws,
vibrators, etc. The operation of these equipments will generate noise ranging
between 75-90 dBA.
Pre-Feasibility Report for 1x660 MW Thermal Power
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Solid Waste Management
The power plant, being lignite-fired power station, would generate coarse as
well as fine ash. Fly ash is proposed to be collected in silos and would be
marketed in dry form. The Fly ash generated in thermal power plants has
commercial value and would be utilized in any of the following applications.
Cement Industry, Brick Industry Fly ash making Industry Road embankments.
Afforestation and Green Belt Development
Adequate afforestation at plant area is planned which would not only act as
lung space in the area but would also improve aesthetics and will be continued
in all available space.
Pollution Monitoring and Control Measures
A well defined environmental monitoring programme will be incorporated with
trained and qualified staff who will monitor the ambient air as well as flue gas
quality from the stack, to ensure that the quality of effluents are maintained
within the permissible limit. PC based Continuous Emission Monitoring System
(CEMS) would be provided to continuously record and display the SPM, CO,
NOx and SOx constituents in the flue gas. CEMS would be provided with a
remote transmission facility to DDCMIS. The ambient air qualities monitoring
systems is already in place and is being monitored on continual basis.
3.6 Raw Material required along with estimated quantity, likely source,
marketing area of final products, mode of transport of raw materials and
finished products :
Raw Materials details
S. No.
Name Of Raw Material
Estimated Daily quantity (MT)
Source Mode of transport
1 Lignite Coal 12,744 Captive Mines Conveyor
2 Water 37,488 Indira Gandhi Nahar Pariyojana
Pipeline
Pre-Feasibility Report for 1x660 MW Thermal Power
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Limited
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Finished Product
S.No. Name Of Finished Product
Estimated Daily Quantity (MU)
Market Area Mode of transport
1 Electricity 14.652 Rajasthan Discoms 400 KV Electrical Transmission System
3.7 Resource optimisation / recycling and reuse envisaged in the project
Water effluent will be treated and reutilised in plant. Zero discharge will be achieved.
3.8 Availability of water, its source, Energy / Power requirement and source
Availability and source of water
RWPL has sanctioned allocation of 80 Cusecs of water from Indira Gandhi
Nahar Pariyojana through Government of Rajasthan.
Sr No Plant Water Consumption Cusecs
1 Existing plant 35
2 Proposed Expansion WCC/ACC 15 / 7
Total Average Water Consumption WCC/ACC 50/42
3.9 Schematic representations of the feasibility drawing which gives
information of EIA purpose
The lignite handling system, ash handling system and water system shall be fully
integrated with the existing system to optimize the cost and space and minimize
pollution issues. .
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
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4.0 SITE ANALYSIS
4.1 Connectivity
The connectivity of the project site with the major road/ railways/ ports and
human settlement is as given in table
Description Distance
Transportation
Road : ~ NH15 –approx 15 KM (East)
Rail : ~ Barmer railway station approx 25 km (South).
Nearest Town/City Barmer town-approx 25 km north South
Nearest Village Bhadresh-approx 1.5 km West
4.2 Land form, land use and land ownership
The proposed project site is located adjoining to the Jalipa Kapurdi Lignite Mines,
District Barmer, Rajasthan. No forest land is involved in the proposed project site.
The total land requirement for the proposed expansion project is 220 acres. Land is
already in possession of RWPL and converted for Industrial use.
4.3 Topography
The site grade level and type foundation will be decided after completion of the
topographical survey of the plant area. However the land for the plant area is
generally flat. The site geology generally has sandy soil layer present from 0.5m to
3.0m depth (RL 185.0). Thereafter the soil strata has a layer of dense gravel upto
9.0m depth (RL 179.0). This gravel layer is about 4 to 6m thick. Below this gravel
and upto an explored depth of 20m is bentonite layer – a very hard dense silty clay
layer which is high plastic and expansive in nature. The type of foundation will be
decided after completion of geo technical investigations. Presently no piling is
envisaged. There is no nearby water body or river.
4.4 Existing land use pattern
The land for the proposed project is part notified industrial land allotted by
Government of Rajasthan.
Pre-Feasibility Report for 1x660 MW Thermal Power
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4.5 Existing Infrastructure
The company is operating currently 8 X 135 MW Lignite based power plant at the
site. Following infrastructure facilities are available at site
- Roads
- Water Reservoir
- 400/220 KV Electric sub station
- Drainage
- Communication system
- Guest House
- Laboratory
- Stores
- Weighbridges
- Offices, canteen, IT Infrastructure
- Lignite handling
4.6 Soil classification
The site geology generally has sandy soil layer present from 0.5m to 3.0m depth
(RL 185.0). Thereafter the soil strata has a layer of dense gravel upto 9.0m depth
(RL 179.0). This gravel layer is about 4 to 6m thick. Below this gravel and upto an
explored depth of 20m is bentonite layer – a very hard dense silty clay layer which
is high plastic and expansive in nature.
4.7 Climate data from secondary sources
The highest monthly average of maximum daily temperatures recorded at the
proposed site is 41.80C and the lowest monthly average of minimum daily
temperature is 10.60C. The annual mean relative humidity is 58% with extremes
ranging from 23% to 79%. The average annual rainfall is 263 mm
4.8 Social infrastructure available
The main infrastructural support for the proposed project is available at Barmer
town, viz. located at 26 km South, Barmer town is close to the National Highway
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
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Limited
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(NH-15) connecting Barmer with Jaisalmer and the nearest railway station is at
Barmer for the project site.
Significant observations about infrastructure details are as follows:
Out of 22 villages only 12 villages have primary school and 4 villages have
middle schools.
Medical facilities are available in only 2 villages which are 22 and 32 km
away from Barmer (by road).
Even the villages very close to Barmer (within 10 km) do not have medical,
post and telegraph, power supply, market and communication facilities.
Drinking water sources (supply) are not sufficient in villages. Tank water,
hand pumps, wells, tap water sources are available only in 14 villages.
Power supply for the use of domestic purpose is available only in 9 villages.
Pre-Feasibility Report for 1x660 MW Thermal Power
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5.0 PLANNING BRIEF
5.1 Planning concept (type of industries, facilities, transportation etc) Town
and country planning/ Development authority classification.
The proposed project is brown field project and the state government has allotted it
as industrial land. Also the industrial area and the related facilities are already
developed hence no planning is envisaged.
Also, due to the presence of industries including The Rajasthan State Industrial
Development& Investment Corporation- RIICO (located about 25 km in the South
direction from the project site in Barmer town).
5.2 Population projection
There would not be any significant increase in the population of surrounding area as
the workers for the proposed project will come from the local residents in the
surrounding villages. No major influx of people in the area due to proposed project.
Only highly skilled manpower will be taken from outside if not available in the
nearby area.
5.3 Land use planning (break up along with green belt etc)
The detailed land use planning and the area break up is as given in the table
TOTAL AREA 1186 ACRE
PROPOSED EXPANSION 220 ACRE
GREEN BELT(TOTAL) 392 ACRE (33.5 %)
5.4 Assessment of infrastructure demand (Physical & social)
As the proposed project is with the existing industrial premises the basic
infrastructure like water, Electricity and road are available at the project site. Hence
no major infrastructure is envisaged at the project site.
Pre-Feasibility Report for 1x660 MW Thermal Power
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5.5 Amenities/Facilities
Following facilities are available in the existing industrial premises:-
Canteen
Guest House
Sanitation
Medical
Safety department with all safety training facilities
Fire Tender & Fire fighting services
Conveyance for staff and workers
Rest rooms for workers
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
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6.0 PROPOSED INFRASTRUCTURE
6.1 Industrial area (Processing area)
The total industrial area earmarked by the company is 220 acres in present plant
premises.
6.2 Residential area (Non processing area)
No labour colony is envisaged for proposed project. Temporary resting quarters are
provided for the workers in the existing unit. Project site is very near to the
Bhadresh village and Barmer so labour colony is not required.
6.3 Green belt
Around 392 Acre of area, out of 1186 Acre of total project area, which is about 1/3
of total project area has been allocated for green belt development.
The list of plant species, which is planted in the green belt area, is given in below.
Sl. No. Common Name Scientific Name
1. Neem Azadirachta indica
2. Dhanbaher/ Amaltas Cassia Fistula
3. Kumat Acacia Senegal
4. Jand Prosopis Spicigera
5. Khaira Acacia Catechu
6. Karir Capparis deciduas
7. Jungle jalebi Inga dulcis
8. Imli Tamarindus Indica
9. Ber Zizyphus jujube
10. Babul Acacia Arabica
11. Peepal Ficus Religiosa
12. Vilayati babul Prosopis juliflora
13. Khejri Prosopis cineraria
14. Bargad Ficus benghalensis
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 42
The pit size for the plantation of saplings will be about 1 m × 1 m × 1 m. These pits
will be filled with soil and manure up to 2/3rd of its depth, about 5 to 10 days in
advance before plantation.
6.4 Social infrastructure
The company is bound for the upliftment of social infrastructure in the surrounding
area. Dedicated fund shall be contributed for the development of hospitals, schools
and drinking facilities in the surrounding area.
6.5 Connectivity (Traffic and transportation road/rail/metro/ water ways etc)
The major road/ rail in the area are as given below
Description Distance
Transportation Road : ~ NH15 –approx 12 KM (East)
Rail : ~ Barmer railway station approx 25 km (South).
Nearest Town/City Barmer town-approx 25 km north South
Nearest Village Bhadresh-approx 1.5 km West
6.6 Drinking water Management (Source & Supply of water)
Water required for drinking purpose will be about 100 m3/day (100 KLD) and met
from available system.
6.7 Sewerage system
The infrastructure for sewerage will be designed during master planning.
6.8 Industrial waste management
The industrial waste generated mainly will be in form of hazardous liquid waste and
solid waste. The hazardous waste generated will be as in table:
Waste generated Quantity Disposal plan
Used / Spent oil 100.00 KL/annum Will be send to registered
recycler
Empty / Contaminated Drums 5000 Nos /
annum
Contaminated drums will be
send to registered recycler
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 43
6.9 Solid Waste/by product Management
Plant By Product Qty Generation
MT/Day Use
1 x 660 MW
Power Plant
ESP & Boiler furnace
bottom
2544 Supply to Cement
Industries and Mine
Back Filling
6.10 Power requirement & supply/ source
Power requirement for plant auxiliaries will be met from its own generation.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 44
7.0 REHABILITATION AND RESETTLEMENT (R & R) PLAN
Not Applicable – Proposed project Land owned by RWPL
7.1 Policy to be adopted (Central/ state) in respect of the project affected
persons including home oustees, land oustees and landless laborers
Not applicable, because no human settlement or agriculture land is involved in the
identified project land. The proposed project is within the existing industrial premises.
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 45
8.0 PROJECT SCHEDULE & COST ESTIMATES
8.1 Likely date of start of construction and likely date of completion
Likely date of start of construction: Immediately after obtaining EC
Likely date of completion of construction: August 2018 (36 month after EC)
8.2 Estimated project cost along with analysis in terms of economic viability
of the project
Total Cost : 4620 crore (Approx.)
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 46
9.0 ANALYSIS OF PROPOSAL (FINAL RECOMMENDATIONS)
9.1 Financial and Social Benefits
Financial and social benefits that could be obtained from the proposed project is
described below:
The plant will result in considerable growth of power infrastructure in the region.
Provide direct & indirect employment opportunities and development of
peripheral / supporting services and amenities.
Supporting infrastructure development like road, power supply, reality sector
No environmental significant impacts are envisaged.
Best applicable mitigate measures have been proposed for management of
anticipated environmental impacts.
Community development activities will be initiated under CSR programs as per
Company Act 2013.
The project will provide significant revenue to the exchequer in the form of
excise and taxes etc.
The project will create opportunity for industrial development in the state.
CORPORATE SOCIAL RESPONSIBILITY
Along with being a successful Business entity RWPL has an active sense of social
responsibility. The Company is committed to be a good corporate citizen wherever
the company is engaged in business activities and interests. The company’s
Corporate Social Responsibility Programme voluntarily integrates Social and
Environmental concerns into their operations. As a responsible corporate entity
RWPL shoulders many responsibilities.
To work in tandem with the environment without upsetting the ever-fragile eco-system
is our philosophy. Strict environment management systems for air, water, and waste
treatment in and around the plants ensure stringent procedures and international
compliances. The organization attempts to give its workforce a quality life, hazard free
working environment, and drive them to a higher standard of living by providing them
access to amenities like housing, transportation, medical facilities, schools, and other
Pre-Feasibility Report for 1x660 MW Thermal Power
Plant at Bhadresh, Barmer (Dist.), Rajasthan
Raj WestPower
Limited
Raj WestPower Limited Page 47
civic infrastructure. As part of community service, RWPL has adopted many villages
surrounding the plants. Active volunteers from the organization undertake regularly
literacy drives; organize free health camps and are continuously striving to make
these villages independent and progressive.