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p Proposed modernization of Existing Unit # 6 (500 MW) by Change of Fuel Presentation Title ( Arial, Font size 28 ) at Date, Venue, etc ..( Arial, Font size 18 ) Trombay Thermal Power Station, Mumbai Unit # 6 Modernisation by change of fuel 1

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Unit # 6 Modernisation by change of fuel

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Presentation Title ( Arial, Font size 28 )

Date, Venue, etc..( Arial, Font size 18 )

Proposed modernization of Existing Unit # 6 (500 MW) by Change of Fuel at Trombay Thermal Power Station, Mumbai

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Trombay Thermal Power Station (TTPS) Location

  • Part of the Greater

Mumbai Area; Trombay

  • Coordinates of

Unit # 6 stack - 19O00’12.66’’N, 72O53’51.60’’E

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  • Nearest Railway

station Kurla/Chembur : 7 KM

  • Nearest Airport :

Chhatrapati Shivaji International Airport 12 KM.

TTPS

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SLIDE 3

Location of Trombay Thermal Power Station

U# 4 U# 8 U# 7 U# 6 U# 5

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Unit No. Commissioned in Capacity (MW) 5 (Coal) 1984 500 6 (Oil/Gas) 1990 500 7 (Gas) 1993 180 8 (Coal) 2009 250 Total

  • 1430

Unit 1,2 & 3 decommissioned in early 90’s *Unit 4 is in standby mode (150MW)

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  • Trombay Thermal Power Station (TTPS) provides power to the city of Mumbai
  • At present 2377 MW is embedded generation for Mumbai
  • Presently, peak power demand of Mumbai City is about 3391 MW
  • Demand is expected to increase to 6200 MW by 2020
  • Unit # 6 needs to be operated at full capacity to meet the growing demand
  • High price of low sulphur oil results in very high cost of generation in Unit #6

Need for the Modernization of Unit # 6 by change of fuel

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  • High price of low sulphur oil results in very high cost of generation in Unit #6
  • Natural gas is not likely to be available for next 10 years
  • RLNG prices are very high and volatile
  • Modernization of Unit # 6 on coal will ensure cheap power to Mumbai
  • Embedded generation to be maintained at Trombay for success of islanding

scheme

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Alternative 4: Unit # 6 on low ash low Sulphur coal and modernization

  • Use of Imported coal having low sulphur (0.28%) and low ash (4.5%)
  • Multi fuel firing capability will be retained
  • No change in the capacity of Unit #6 (500 MW)
  • No additional land acquisition required
  • No additional water allocation required

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  • No additional discharge of waste water
  • Reduction in pollution load due to installation of ESP and FGD
  • Noise abatement by use of acoustic barriers, robust structural designs
  • No additional power evacuation required
  • Shortest gestation period
  • Incremental capex for modernization (Change of fuel)
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SLIDE 6
  • Augmentation of existing captive coal berth from 2.4 to 4.4 Million MT/Annum
  • Closed pipe conveyors for transportation of coal from coal berth to plant
  • Installation of stacker reclaimer and screw unloader at Coal Berth/ storage
  • Installation of State-of-the Art high efficiency NOx burners
  • Installation of FGD to treat 100% flue gas for SO2 removal

Key components of Unit #6 modernization

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  • Installation of FGD to treat 100% flue gas for SO2 removal
  • Installation of high efficiency ESP for PM control
  • 100% ash utilization from day one
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SLIDE 7

Benefits of Unit #6 Modernisation

  • Reduction in transmission congestion
  • Lower tariff to Mumbai consumers on account of reduced cost of generation
  • Ensuring uninterrupted and reliable power supply to consumers of Mumbai
  • Ensuring islanding capability for Mumbai
  • To meet demand supply gap for Mumbai

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  • To meet demand supply gap for Mumbai
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Details of the EIA study

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  • EIA study carried out within the 10 km radius from TTPS as per EIA

Notification, 2006 and as per ToR/ additional ToR issued by MoEF for the period from March to May 2012

  • All studies carried out as per ToR
  • Air Quality Monitoring carried out at 7 locations within the study area
  • Ground water and surface water quality monitoring carried out at 4 locations

EIA details

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  • Ground water and surface water quality monitoring carried out at 4 locations

each within the study area

  • Soil quality monitoring carried out at 5 locations within the study area
  • Meteorological parameters were monitored during the study period at site
  • Air Quality Modeling carried out using ISCST3 model to study the impact on

surround air quality

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Environmental Settings

  • Sr. No

Particulars Details 1 Elevation above MSL 3 m 2 Climatic conditions (Annual as per IMD-Colaba) Annual Mean Max Temp: 31.2 0C Annual Mean Min Temp : 23.7 0C Annual Rainfall : 2146 mm 3 Climatic conditions (Summer as per IMD- Colaba) Maximum Temperature: 33.4 0C Minimum Temperature: 22.7 0C Rainfall: 4.4 mm 5 Site specific climatological data (Summer season 2012) Maximum Temperature: 39.4 0C Minimum Temperature: 21.4 0C

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Rainfall: Nil 6 Nearest Highway Sion Panvel Highway about 6 KM 7 Nearest Railway station Kurla Railway Station about 7 km 8 Nearest Air Port Chhatrapati Shivaji International Airport about 12 km 9 Reserve Forest Nil in 10 km Radius 10 Ecologically sensitive zones Nil in 10 km Radius 11 Archaeological monuments Elephanta caves about 5 km 12 Water bodies (River/ Lake)) Ashish Lake at about 4km 13 Defence Installations BARC, Naval Communication Centre within 1 km area from site 14 Seismic Zone III

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Ambient Air Quality Monitoring Locations

Predominant wind direction NW to SE (towards sea)

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Ground Level Concentration (GLC)

Particulars SO2 (g/m3) NOx (g/m3) PM (g/m3) Scenario 1: Existing Operations on oil 3.91 4.58 2.24 Scenario 2: After modernization on coal 3.85 4.43 1.94 Incremental contribution to GLC

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  • ISCST 3 modeling was carried out to find out worst case GLC of the pollutants
  • Study reveals decrease in the pollution load due to installation of air pollution

control equipment

coal Change

  • 0.06
  • 0.15
  • 0.3

Change %

  • 1.5
  • 3.3
  • 13.4
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  • The air quality simulation result shows that after Unit #6 modernization the

worst case maximum GLC’s of all the pollutants is predicted in South East direction at about 4.5 km from the project site towards sea

  • The nearest location in SE direction where the baseline AAQM monitoring

carried out was is Nhava village

Ground Level Concentration

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  • The base line concentration of the pollutants at Nhava Village are meeting

NAAQ standards except PM10 (marginally higher) due to various ongoing construction activities of roads, housings etc.

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Particulate Emission from Unit #6 stack

Particulars PM (mg/ Nm3) Unit #6 on Oil 83 Unit #6 on Coal 50 Change

  • 33

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  • As per the analysis report, LSHS has 0.1% ash content
  • There will be 40% reduction in PM emission after coal conversion

Change

  • 33

Change %

  • 40
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Barge Traffic due to Coal Movement

Parameters Existing After Unit 6 modernization project No of Ships per Annum 42 68 Marine traffic In Mumbai harbour (JNPT/MbPT) 5935 5961 % contribution in Traffic due to Tata Power 0.7% 0.71%

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Number of Barge Traffic for Tata Power in Mumbai Sea 1090 barges with 1 unloader. Barge capacity is 2200 MT 2000 barges with 2 unloaders. Barge capacity is 2200 MT.

  • % change in traffic due to Tata Power after Unit #6 modernization will be 0.01%
  • The ships are anchored at the outer anchorage inside the deep sea
  • Currently 70% of coal requirement of Tata Power is met through its own jetty

and 30% by rail transportation

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  • Marine impact assessment has been carried out by Central Marine Fisheries

Research Institute (CMFRI), Mumbai

  • No evidence of any major environmental damage to marine environment due to

existing operations of Coal Berth which is already in use for unloading coal for the plant as well as operation of barges to carry coal to the coal berth

  • Sea water quality in the study area adjacent to the TTPS is comparatively better

Marine assessment findings by CMFRI

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than other locations like Mahim, Versova, Gorai, etc.

  • Marine environmental impact due to increased barge movement in the area will be

minimal and of minor nature, considering the current baseline status of marine environment

  • Existing systems to prevent sucking of juvenile forms of marine animals at the

water intake point appear to be adequately designed to minimize damage to marine ecology

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  • Entire design of marine intake and outfall channel location is done by Central

Water and Power Research Station (CWPRS), Pune

  • The approach velocity of water was measured and found to be less than

0.11m/s. Also it is confirmed from design data that the system is designed for less than 0.11 m/s (0.37 fps) which is less than 0.5 fps as suggested

Marine assessment findings by CMFRI

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  • In addition small opening screens/nets (screen size reduced from 40mm to

25mm) have been introduced at the intake of CW to prevent sucking of juveniles of marine animals and also observed trash collection on screens reduced by 50%

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Impact due to Fly Ash movement

Parameters Existing After Unit 6 Modernization Fly ash Generation (MT/D) 200 450

  • No. of Bulkers Per day

15 16 Carrying capacity of bulkers (MT) 15 28

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  • Negligible increase in the transportation of fly ash after modernization project
  • About 18 months time will be required for migration from 15 to 28 tonner bulkers for fly

ash transportation

  • Demand for the fly ash in RMC from various vendors in FY 12 was 630 MT/day as

against our generation of 200 MT/day

  • This will ensure 100% fly ash utilization in RMC from day one
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Environment Management Plan

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  • High efficiency Electrostatic Precipitator (ESP) will be provided to ensure

particulate matter emission below 50 mg/ Nm3

  • FGD to treat 100% flue gas will be installed to limit SO2 emission below 24TPD

as per present consent condition

  • Installation of low NOx burners

Air Quality Management

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  • Coal transportation through closed pipe conveyor
  • Stacker reclaimer and screw unloader
  • Green area development around coal berth and coal yard to further reduce

fugitive dust emission

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  • Acoustic barriers will be provided at high noise generating sources like pumps,

blowers, turbine room, etc. to maintain noise levels within permissible limit

  • Robust structural design for machineries to bring down noise level
  • Personal Protective Equipments will be provided to the workers working in high

noise areas

Noise Level Management

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  • All the machines will be well lubricated to reduce noise transmission
  • Regular training and awareness will be given to the employee and contractors

about the noise management

  • Regular health check up of the people working in high noise area will be carried
  • ut
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  • No additional water allocation required
  • Existing two STP’s of capacity 125 m3/ day each will cater to additional load

during construction phase

  • Treated effluent is being used for spraying on coal and gardening/ plantation
  • For proposed project adequate treatment of FGD effluent will be ensured

Water Management

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before discharging to sea

  • Online temperature measurement is installed in the discharge channel to

measure temperature of discharge water on continuous basis

  • Rainwater harvesting is carried out at main store building, administration

building and fuel oil tank area

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  • Use of low ash imported coal will be continued
  • Existing & additional fly ash will be utilized in RMC to achieve

100% fly ash utilization

  • Fly ash will be pneumatically conveyed to the silos
  • Fly ash will be stored in close silos to avoid any dust emission
  • Transportation of fly ash will be carried out only through

closed bulkers

Solid Waste Management

(Bricks out of bottom ash)

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  • Bottom ash will be stored in hydro bins and will be utilised for

brick making and other purposes

  • Capacity of the existing brick making plant will be enhanced

(4000 bricks/ day, 10 MT/ day bottom ash) to increase utilization of bottom ash for brick making

  • One more brick making plant will be installed for consumption
  • f bottom ash in brick making

(Bricks out of bottom ash)

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Existing Fly Ash Management System

ESP Hoppers Ash Conveying via Pipes

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ESP Hoppers Ash Conveying via Pipes Discharge Silo & Bulker Closed Bulker for transportation

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Existing Captive Coal Berth facility

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Continuous Screw Unloader at Coal Berth

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CSR at TTPS

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Community Relations (CR)

Company

  • Sustainability Principle- Leadership with Care (CR Apex Committee)
  • Commitment to Social Vision of Company - CR Policy
  • Aligned to Companies Bill 2012, Millennium Development Goals

Division

  • CR Plan Aligned to Business Goals
  • Full Fledged Team at Division Level-Professionals and Community Volunteers

Community

  • Bottom Up Planning with Communities (Stakeholder Consultation)
  • Program Execution Strategy on 5 Thrust Areas (Community Priorities)
  • Monitoring and Evaluation- Internal Processes, External Assessment

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Social Capital and Infrastructure Health Livelihood Education Sustainability

Community

THRUST AREAS

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Linkage of Thrust Areas with Company’s Bill & MDG’s

Activities mandated in the Companies Bill, 2012 by MCA COMMUNITY RELATIONS – 5 THRUST AREAS Enhancing programs on livelihood & employability Augmenting Rural Primary Health Education Building social capital & infrastructure Building & Strengthening Healthcare facilities Nurturing Sustainability for Inclusive growth

Eradicating extreme hunger and poverty

*

Promotion of education

*

Promoting gender equality and empowering women

*

Reducing child mortality and improving maternal health

* *

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improving maternal health Combating HIV, malaria and

  • ther diseases

*

Ensuring environmental sustainability

*

Employment enhancing vocational skills

*

Social business projects

*

Prime Minister's National Relief Fund or funds to Government and funds for AA

*

Such other matters as may be prescribed the amount

*

Millennium Development Goals (MDGs)

Eradicating Poverty Primary Education Gender Equality Reducing Child Mortality Improving Maternal Health Combating HIV AIDS, etc Environmental Sustainability Global Partnership

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Present Outreach and Initiatives 2008 -13

Thrust Area Initiatives Stakeholder Education Improving Quality of Education through Extra- Tutorials in Local Govt School Local Community and School Health

  • Village level Health Camp
  • Specialised Camp-Eye, Gynaecology/Child
  • HIV Awareness by Employee Volunteers
  • Employee
  • Vision Foundation/PSI
  • Govt PHC Doctors
  • Women, Children, Senior Citizen

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  • Women, Children, Senior Citizen

Livelihood Fishermen Cooperative (Community Trawler Management)

  • Fishermen Community
  • Local Opinion Makers

Social Capital & Infrastructure

  • Vocational Skill Development for Youths
  • Girl Hockey Promotion (240 Girls)
  • Community

Asset Creation-Road, Play Ground, Speed breakers

  • Rural Youths
  • Abhi Foundation
  • Local Municipality

Sustainability 25000 Hours of Employee Volunteerism

  • Academic Institutions
  • Goonj, Indianngos.com
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SLIDE 30

Way Forward (2013-17)

Thrust Area Initiatives Changing Scenario Education

  • Quality School Project-Focus on Girl Child Education
  • Career Guidance for SSC/HSC Pass outs
  • Scholarship for Economically Challenged Students
  • Slow growth of School Nos and

increasing slum dwellers

  • Growing Student: School Ratio

Health

  • Strengthening government medical program
  • Mobile Health Services
  • Free surgeries for BPL families
  • Enhanced cost of Health care

Theme: Building People Capacities for Self Reliance

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  • Free surgeries for BPL families

Livelihood

  • Setting BPO (Employability)
  • Building skills in ITI
  • Unskilled Youths population on the

rise and market driven job skill requirement Social Capital & Infrastructure

  • Women Self Help Group Promotion
  • Infrastructure Development
  • Need for economic independence
  • f women
  • Growing demand for quality of life

Sustainability

  • Solar Energy Promotion
  • Water Clubs & Plastic Free Campaign
  • Alternate

solution for renewable energy at affordable costs

  • Resource Conservation
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SLIDE 31

CSR expenditure (Rs. in Lacs)

  • Earmarked Rs 600 Lacs under Community Relations Initiatives (FY 13-17)

68 70 72 74 68 72 74

CR Expenditure (FY 08-12)

40 40 8.5 25 11 10 10 4.5 11 10 10 10 60% 70% 80% 90% 100%

CR Provision FY 13-17

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56 58 60 62 64 66 68 2008 2009 2010 2011 2012 65 62 4 20 10 10 10 7 20 25 30 30 4 200 40 40 40 0% 10% 20% 30% 40% 50% 60% 2013 2014 2015 2016 2017 Education Health Livelihood Social Capital Inclusive Growth

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SLIDE 32

Activity wise budget allocation for CSR

Thrust Area FY 13 FY 14 FY 15 FY 16 FY 17

Education

4 20 10 10 10

Health

7 20 25 30 30

Livelihood

4 200 40 40 40 Total – (Rs 600 Lacs)

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8.5 25 11 10 10

Inclusive Growth

4.5 11 10 10 10

TOTAL

28 276 96 100 100