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INDIAN RAILWAYS GREEN ENERGY INITIATIVES
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Initiative to Improve Energy Utilization in General Services:

In order to further improve upon energy efficiency IR has taken up some pilot projects for Energy efficiency improvement with an aim to multiply such successful projects in the coming days.

  • Optimal light control system
    Optimal light controlling system is a comprehensive system which controls lighting load of all kinds. This is a fully programmable system by which reduction in energy consumption is achieved by reducing the applied voltage without proportionate reduction in the illumination level.
  • Smart sense & smart Grid system
    The project aims to monitor the energy consumption and the energy generation from the diesel generators, total running hours, total black out hours, blackout frequency, etc. to provide the visualization & Energy Management services in building complex.

  • Retro-fitment of LED lights in non AC coaches
    The existing tube light fittings have limitations in brightness, uneven distribution in lights, frequent maintenance/ replacement over the period of time, poor visibility due to ingression of foreign particles/dust and more power consumption.In order to overcome the limitations of tube light fittings, energy efficient LED based low maintenance & long life Tube Light (two feet 9 Watt ) suitable for operation on 110V DC including mounting arrangement for illumination in different coaches of Mail/Express Passenger trains has been introduced as replacement to the existing tube lights which saves upto 40% 0f energy.

    provision of LED lights in non AC coaches at ASR:

    HQ office has fixed a target of 150 Coaches for FZR Divn. for Retro fitment of LED lights in non AC Coaches. In compliance to HQ instructions, 70 nos. (ASR-37, JAT-33) Non AC coaches has been covered till date and work is in progress for Retro fitment of LED lights in GSCN Coaches. The photograph is as under:

    IMGEnergy1

  • Automatic light & fan control for New Delhi Railway Station
    It consist of GPRS based Intelligent Field Devices (IFDs) installed inside Light Feeder Pillars for monitoring and control of lights from central SCADA over the internet.
  • Automation of pumping arrangement
    This scheme improves system efficiency/ performance, safety of equipment/ people, and reduction in downtime by way of timely maintenance attention. This system works through Remote Terminal Units at the tube well pump sites. These RTUs communicate, via GPRS with the central server. Software for monitoring and control is used and is through a web browser via Internet. The web based application software allows configuration of reports, alerts and alarms.
  • Provision of Super energy efficient fans (DLI-200, UMB-200)
    EnergyUtilization2

    The super efficient ceiling fan consumes about 35W for the same output to a conventional ceiling fan and saves more than 50% electrical energy comparison with conventional ceiling fan.


  • Installation of VVVF, Variable voltage variable frequency drives for lifts
    The elevator comprise of a VVVF drive, functionally integrated with the elevator controller to control the driving motor. The VVVF based technology ensure the elevators movement with speed control. The VVVF drive also result in smooth acceleration/de-acceleration during the motor starting/stopping for reducing/limiting the starting current and the frictional wear & tear of the brake liner. VVVF drive have closed loop system with all type of safety, floor leveling control with LED scrolling display system, car operating panel with call buttons, hall buttons, up/ down indictors, ARD complete with shaft wiring and all other associated accessories/ equipments required for replacement of existing controller with VVVF drive in the existing 8 passengers, 8 stops & 8 opening lift (max.) as per ISS & IE rules and RDSO spec. No. RDSO/2013/EM/SPEC/0016 (Rev ‘O ‘).
  • Provision of Solar pumps
    An energy efficient five star rated 1.5 HP solar powered stainless steel pump has been commissioned on level x-ing gate near Amritsar Railway station. The system consists 8 nos. solar photovoltaic modules with a total capacity of 2 KWp, 3.5 KVA power control unit, battery bank of 100 AH capacity with power back up upto 3 hours. This will save Approx. ` 20,000/- per annum.

Actions being taken by various Railways towards energy conservation

  • South Central Railway

      • Use of BEE 5-star rated split air-conditioners against over-aged window air-conditioners of service life more than 10 years.
      • Provision of solar hybrid air-conditioners in lieu of conventional only evaporative cycle air-conditioners. Railway has provided such air-conditioners of 6 Nos. at Electric Loco Shed, Kazipet.
      • Use of LED lighting/induction lighting in high mast tower light provided in circulating area and goods yard. 800 W metal halide fitting is replaced with 150 W induction lamps and 400 W metal halide is replaced with 80 W induction lamps.
      • Provision of 70% light control system at railway stations through wireless key tag control, in hand of Dy. SS on duty with 15 minutes off delay timer.
      • Operation of high mast light in station circulating area through 70% control lighting on platform with 30 minutes off delay timer. 16 High mast Lights are covered under this scheme. Rest are being covered.
      • Provision of 15 minutes off timer in rolling examination lights and provision of LED/induction lamps in rolling examination lights.
      • Replacement of T8/T12 with T5 FTL lightings in all offices, office buildings and also residential quarters on first occupancy.
      • Provision of clock timer control in all water coolers, in office premises and at railway stations.
      • Provision of single sort 30 minutes off delay timers in station lighting at passenger halt stations.
      • Provision of Current Transformer based one shot cut off control on electric geysers provided at running rooms and retiring rooms.
      • Provision of day light censor type control on street lighting in important colonies.
      • Provision of timer based street light controls in other colonies.
      • Provision of door operated limit switch control for air-conditioners provided in the hospital wards.


      i)    Initiatives taken for energy audits and developing benchmarks for energy consumption points

      Traction:

      Energy audit is done at Krishna Canal Traction sub-station, report is awaiting.

      Non-Traction:
      • Energy audit at 142 locations have been completed upto March, 2015. During 2015-16, 30 locations have been identified out of which energy audit at 9 locations have been completed, balance will be completed on or before the month of December, 2015.
      • Bench marking: The concept of light power density (LPD) in service building introduced. The divisions are advised to achieve LPD bench marking of 11.8 watts/sq.m.
      • The benchmarking of major consuming loads will be taken up accordingly.


      ii)    Initiatives taken leading to savings in traction and non-traction energy

      Traction:
      • Energy conservation by switching off of standby transformers.
      • Shutting down off the locomotives in trip-sheds, fright sheds yards & enroute for more than 30 minutes.
      • Switching off blowers whenever the train is stopped for more than 5 minutes.
      • Extensive usage of regenerative braking for trains working with three phase locos.

      Non-Traction:
      • Complete shutting down 5000 kVA power sub-station with 1750 kVA MD and feeding the load through ring main circuit by other 5000 kVA with 3800 kVA MD sub-station during weekends (Saturday and Sunday).
      • Shutting down of all standby transformers from primary side to eliminate ‘no load’ current.
      • Complete shutting down of transformers which are feeding only pumping stations in off pumping period.
      • Switching off of air-conditionining load feeder before and after office timing and also during lunch time.


      iii)    Initiatives taken for improving the designs to improve energy utilization

      • Use of SPV hybrid air-conditioners over conventional evaporative type air-conditioners.
      • Provison of VVVF drives in traversers, EOT cranes and air handling units of centralised air-conditioning.
      • Provision of VVVF drive in dyno drive testing.
      • Provision of energy efficient battery charging plant for charging locomotive batteries.
      • Provision of expresser (loco compressor) of WDM2 locomotives with 40 HP slipring induction motor as distributed compressed air source, in lieu of centralized very high capacity of 160 LPM and above co mpressors in diesel loco shed, Guntakal. This scheme is also going to be implemented at C&W Depot for air testing.


  • Central Railway

    • Measures taken in Non-traction Energy Consumption.

      The following measures are being taken to reduce non-traction energy consumption:

      • Making user departments aware and accountable for use of electricity. Same is being reviewed during the Divisional meeting by DRMs.
      • Daily monitoring of HT consumption at major load centers & take measures to control excess in consumption.
      • Controlling the utilization of high mast lighting towers in good shed and other placed making accountable the user Department.
      • Segregation of AC loads from non AC loads and monitoring the AC loads.
      • Provision of T-5 fittings and CFLs and LED based lights.
      • Monitoring reduction of use of geysers in rest house, running room etc.
      • Planning to use instant type of geysers instead of storage type at Rest Houses etc.
      • Provision of Electric geysers with hybrid system using solar energy to save the electricity and water.
      • Providing occupancy censors in the chamber of officers which should control light and AC of the chamber.
      • Use of star rated AC units and energy savers in places of intensive utilization.
      • Control the utilization of pumps for supplying water to colonies/ Services Buildings etc.
      • Fixing of quota for consumption at major consumption centers and monitored on daily basis.
      • Removing of AC Units from non eligible locations, wherever appropriate.
      • Street light control can be made through automatic timer settings.
      • Use of energy efficient equipments to be planned, while planning the replacement of equipments.
      • Platform lighting of 30% and 70% to be critically observed at all platforms to reduce consumption.
      • Special attention to be given by workshop towards reduction in utilization of compressors plants, lighting, electric ovens, air circulators and machines etc.
      • Energy auditing to be done at high utilization area and recommendations implemented.
      • More proposals to be developed for non conventional energy sources like solar power/fittings/hybrid power with wind and solar etc. to save energy.
  • North Central Railway

    • Following measures/ steps have been taken by NCR to reduce non traction energy consumption:

      • Smart sense GPS based energy monitoring system.
      • Use of LED fittings at corridors, staircase, toilets, bathrooms.
      • Street lights, circulating area in place of CFL/T-5/MH/HPSV Fittings.
      • Use of Automatic Power factor correction panels in HT/LT substations.
      • Replacement of old 90 watt ceiling fans by 60 watt ceiling fans.
      • Use of electronic fan regulator in place of conventional fan regulator.
      • 6Prov. Of LED based station name board in place of neon sign board.
      • Timer switches on high mast towers-yard lighting/street lighting.
      • Use of electronic ballast in place of conventional ballast in FTL circuits and Metal Halide circuits.
      • Automation of pumps.
      • Use of energy efficient pumps in place of old inefficient pumps.
      • Use of copper wiring for quarters.
      • Promote DELP Scheme.
      • Use of 3 stars and above labeled electrical products and equipments.
      • Energy Audit of major load centers.
  • Western Railway

    • i) Energy efficiency /conservation measures

      a) In TRD for Energy Conservation purpose high pf of 0.98 lagging & above is maintained to avoid transmission and Distribution losses. For maintaining high PF, W. Rly is getting incentive/rebates about Rs. 2.32 cr /month in energy bills.

      b) At traction sub-station, standby transformer is kept switched off to avoid no load losses.

      c) OHE voltage is maintained within limits and low catenary voltage is avoided. Thus losses on account of high current due to low voltage are avoided.

      • Year wise consumption and SEC (non traction) of Western Railway is as under:

        Year Non Traction Purposes SEC (KWH/KW)
        2010-11 1220.02 70.45
        2011-12 1157.34 70.08
        2012-13 1112.98 65.50
        2013-14 1111.81 63.32
        2014-15 1101.10 61.56

        This has been achieved through number of green energy initiatives like provision of Solar power systems on stations, LC gates, provision of Solar street lights in colonies, stations, apart from conventional energy conservation measures like provision of LED fittings on stations, provision of Energy Efficient Light fittings, automation of pumps, provision of star rated equipments, automation of 70% lighting circuits on platforms through signaling system etc. on Western Railways.

        Traction energy is consumed for hauling trains. Energy conservation measures for electric locomotive have been identified & action plan prepared. Highlights of action plan are as follows:

      • Running staff

        • Correct accountal of GTKM by division taking FOIS load including CC+8+2 loading.
        • Identification of location of coasting boards and provision of coasting boards.
        • Fixing of trip ration load wise & section wise load. Monitoring & counseling of weak drivers.
        • Switching OFF trailing locos in MU & Tripler while working single loco load/LE.
        • Switching OFF aux. machines at stabling yards, trip shed, loco shed for detention more than 15”.
        • Switching OFF locos while (Single, MU, Tripler) in any yards, loops trip sheds loco sheds if detentions more than 45”.
        • 100% Use of DBR & Regenerative braking by loco pilot.

      • Operating staff

        • Ensure timely taking ‘OFF’ of signals.
        • Don’t regulate High speed freight train such as CONRAJ for giving preference to slow moving Mail/Express and Passenger trains.
        • Inform crew about train regulation / detention in Yards / station so that crew can ‘SWITCH OFF’ blowers /locomotive as the case may be.
        • Avoid ‘LIGHT’ running of locomotives
        • Energy conservation by maximum possible coasting and efficient use of regenerative breaking for optimization of regeneration in 3-phase locos.

      ii) Initiative taken for Energy audit

      Guidelines issued vide BEE’s Regulation of 2010 for conducting energy audits are followed on Western Railway.

      Energy Audits have already been already carried at following locations on Western Railway and the recommendations of the same are already implemented.


      Sr. No. Details of work centers Work centers identified Year Audit conducted Audit conducted by
      1 Churchgate railway station & JRH 2 nos. 2009-10 M/s Encon Energy Management Services, Aurangabad
      2 Vadodara Station and NAIR complex 2 nos. 2009-10 M/s Encon Energy Management Services, Aurangabad
      3 Pumping installations of RTM division 9 nos. 2009-10 Departmentally by Shri Vivek Dixit (Energy Auditor) as Sr.DEE(P)RTM
      4 LCW Workshop DHD 1 no. 2008-09 M/s. Tuvsud South Asia, New Delhi
      5 Railway Colony, DHD 1 no. 2009-10 M/s. ERDA
      6 Carriage Workshop, PL 1 no. 2012-13 M/s. Saurabh Engg.
      7 Makarpura TSS 1 no. 2007-08 M/s. ERDA

      Following 25 locations have been identified for Energy Audit on Western Railway.

      Sr. No. Location Remarks
      1 General Manager's Office (Old Bldg) Proposals under process. TDC 31.12.2015
      2 DRM office, Mumbai Central
      3 Mumbai Central Station
      4 Bandra Terminus Station
      5 Jagjivan Ram Hospital
      6 Lower Parel Workshop
      7 MEMU shed Vadodara
      8 Pratapnagar Workshop
      9 DRM Office, Ratlam
      10 Divisional Hospital, Ratlam
      11 Indore Station
      12 Diesel Shed, Ratlam
      13 DRM Office, Ahmedabad
      14 Divisional Hospital, Sabarmati
      15 Ahmedabad Station
      16 Mehsana Station
      17 Diesel Shed, Vatva Energy Audit completed in May 2015. Recommendations being implemented
      18 DRM Office, Rajkot Proposals under process. TDC 31.12.2015
      19 Divisional Hospital, Rajkot
      20 Rajkot Station
      21 Hapa Yard
      22 DRM Office, Divisional Hospital Bhavnagar Energy Audit completed in Aug 2015. Recommendations being studied.
      23 Mahalakshmi Workshop Proposals under process. TDC 31.12.2015
      24 Lady Jackson Hospital Dahod
      25 EMU carsheds, Mumbai Central, Kandivali, Virar
      SHED/Workshop BRC BL DHD
      Energy Audit Nov-2012 July-2013 June – 2008
      ISO 50001 Being done by Sr.DEE/P Tender due on 06.10.15 Obtained Detailed Estimate vetted. Tender in process

      Energy Audit of Traction Substations:

      The energy audit of MPR TSS was done through M/S ERDA in year 2007. As per recommendation of M/S ERDA, additional capacitor bank was provided to improve pf up to 0.98 and above. This resulted in P.F. incentive to Railway of Rs. 58.71 lakh per annum.

      Similarly energy audit of Bhestan TSS was also done in year 2007 by Dy.CEE/TRD/CCG( Energy Auditor) and recommendations were implemented and saving of Rs. 40 lakh per annum as pf incentive is being received by Rly.

      Railway is taking all steps to ensure energy conservation at all of it’s TSS. However as per summary of key requirements of Bureau of Energy Efficiency – Manner and intervals of Time for Conduct of Energy Audit Regulations,2010, in course discussion, ED(EM), RDSO has explained to DG,BEE that audit of traction substation is not necessary.

      In view of this now no audit of any TSS is being done thereafter.

      ISO 50001 of buildings and installations:

      ISO 50001 for Energy Management system has been obtained for DRM offices of RJT, BCT, BVP, ADI, ELS - Valsad & for ST station for the first time on Indian Railways. Proposals for obtaining ISO 50001 for 20 other locations are in pipeline.

      iii) Initiative taken leading saving in traction & non traction energy

      Monitoring of energy regeneration on three phase Electric locomotives through CMS.

      With technology advancement and availability of efficient switching devices, regenerative breaking has come into design with 3 phase GTO locos. A week long drive was launched during Aug-15 to counsel all Loco pilots/Asstt. Loco Pilots for ensuring entry of Energy and train load readings at the time of ' signing Off ' through CMS. These data are being analysed to decide the benchmark in particular section & load wise. During the drive special emphasis has been given to encourage & motivate Loco Pilots for Energy conservation while coasting and efficient use of regenerative breaking for optimization of regeneration in 3-phase locos.

      Saving in Non traction was achieved through number of green energy initiatives like provision Solar power systems on stations, LC gates, provision of Solar street lights in colonies, stations, apart from conventional energy conservation measures like provision of LED fittings on stations, provision of Energy Efficient Light fittings, automation of pumps, provision of star rated equipments, automation of 70% lighting circuits on platforms through signaling system etc. on Western Railways.

      iv) Initiatives taken for improving the designs to improve energy utilization.

      • In Mumbai sub-urban section 1500 V D.C. traction system has been converted to 25 KV AC traction system in various phases which was very tough task looking to the sub-urban traffic and OHE clearances below existing old bridges. Conversion from 1500 V D.C. to 25 KV A.C. system completed on 05.02.2012. With 25 KV AC, energy losses in system have been reduced considerably and regeneration with 3 phase technology in EMUs and locos has become possible. About 30 % of energy consumed by EMU is fed back in the system by regeneration since 2012-13. This has resulted in 82.56 MU of energy saving costing Rs. 65.39 in 2014-15.

      • Other initiatives to reduce losses in system are as under:
        • Periodical current collection tests are being done by OLIVER-G equipment and hard sports are being attended promptly so that no sparking between OHE and panto pan takes place.
        • Checking of OHE by roof mounted thermal imaging camera to detect hot spots in OHE and timely attention so that not only possible breakdown are avoided but energy losses are also eliminated. Similar checking is being done in switching stations and traction substations to avoid overheating.
        • 105 sq mm jumpers are being replaced by 160 sq mm jumper at isolators in first sub sector from feeding end.
        • 1600 Amp capacity isolators are being provided in place of 1250 Amp capacity isolators.

      • Automation of 70% lighting circuits on platforms through signaling system.

      v & x) Improvement in SEC in Traction and non traction areas

      Improvement in Traction area

      SEC. Target
      2015-16
      Achievement during the month (July) Cumulative during the year (April-July) % Improvement (Cumulative)
      2014-15 2015-16 2014-15 2015-16
      GOODS 6.21 6.79 7.86 6.33 7.50 - 18.48
      Passenger 19.70 19.67 19.73 19.65 19.70 - 0.25

      Improvement in Non traction area

      Year wise consumption and SEC (non traction) of Western Railway is as under:

      Year Non Traction Purposes SEC (KWH/KW)
      2010-11 1220.02 70.45
      2011-12 1157.34 70.08
      2012-13 1112.98 65.50
      2013-14 1111.81 63.32
      2014-15 1101.10 61.56
      vi) Demand Side Management/Building Management System
      • Contract demand of each traction sub-station is kept optimum as per load pattern so that no penal charges are paid to DISCOMs. For this, half yearly review of contract demand is done by Divisions and accordingly HQ approval is given.

      • Following buildings on Western Railway have been star rated by BEE:
        • DRM office of Mumbai Central – 5 star rating
        • DRM office of Vadodara – 5 star rating
        • DRM office of Ratlam – 5 star rating
        • DRM office of Ahmedabad – 5 star rating
        • DRM office of Rajkot – 5 star rating
        • DRM office of Bhavnagar – 3 star rating


      • ISO 50001 for Energy Management system has been obtained for DRM office-RJT, DRM office-BCT, DRM office – BVP, DRM office – ADI, Electric Loco Shed- BL and for ST station for the first time on Indian Railways. Proposals for obtaining ISO 50001 for 20 other locations under process.

      vii) Energy efficiency in Electric Loco/Driving Technique

      Energy consumed & regeneration data are fed by LP in CMS. These data are being analysed to decide the Benchmark in particular section & load wise. The weak drivers having less regeneration & more energy consumption are being counseled for improvement.

      viii) Energy efficiency in General Power supply.

      As above

      ix) Solar panels on Railway coaches.

      Solar panels have been provided on 2 coaches of Science Express.

      x) Saving due to regenerative braking in 3 phase Locomotives:

      Improved Specific energy consumption has been achieved by adoption of 3 phase technology for electric locomotives which facilitates regeneration of 15 to 17% of energy consumed. At present on an average 42 nos. Of 3 phase loco/day i.e. 22% of total outage is available for train operation on Western Railway. The Loco pilots are being regularly counselled to improve driving technique utilizing simulator at ZETC/BRC approximately 6.71 million units were regenerated during April’15 to Juy’15 which has resulted in saving of around Rs.4.90Cr.

      xi) Use of Star rated appliances.

      Star Rated Appliances like Energy Efficient submersible pumps, ceiling fans, air conditioners, refrigerators, etc. are being provided in Western Railway. Details of equipments procured over last 5 years on Western Railway are as follows:

      Year Star Rated equipment
      2010-11 564
      2011-12 733
      2012-13 742
      2013-14 896
      2014-15 733
      xii) Usage of LEDs on Railway premises
      • LED lighting arrangement provided at entire BCT station by M/s SYSKA under CSR initiative for the first time on Indian Railways.
      • LED lighting provided at other 8 stations (Billimora, Kothaj, Od, Makarpura, Barnama, Barajathi, Sabarmati & Palanpur) on Western Railway.
      • 6538 nos. have been identified to be replaced on Western Railway. The following have so far been provided:
        • 820 nos. BCT division
        • 106 nos. BRC division
        • 37 nos. ADI division

      xiv) Status of LED lamps purchased under DELP scheme.

      Ministry of Power is facilitating distribution of 7 Watt energy efficient LED bulbs for people under domestic efficient lighting programme through M/s. Energy Efficiency Services Limited (EESL), a joint venture company of PSUs of Ministry of Power. Under this scheme, LED bulbs are being procured in bulk by EESL and cost of the same for Indian Railway employees will be Rs. 100/- only (market price of the same being Rs. 250-300). EESL will be providing 10 LED bulbs to each valid identity holding employee for Rs. 100 each.

      The scheme was inaugurated on Western Railway on 11.09.2015 by General Manager, WR and will be completed by 31.10.2015 over Western Railway. So far 15251 LED lamps have been Distributed on Western Railway.

      Item no. xvi- DC/AC conversion.

      In Mumbai sub-urban section 1500 V D.C. has been converted to 25 KV AC system in various phases, which was almost impossible job looking into the sub-urban traffic and OHE clearances below existing old bridges. Conversion from 1500 V D.C. to 25 KV A.C. system completed on 05.02.2012.

  • North Western Railway

    • EnergyUtilization11

      High Mast Lighting Towers with LED Lights at Ajmer Railway Station (North Western Railway)

        Automation & Remote Control of Pumping Installations Through GSM/GPRS under UNDP project in Jaipur Division.
        Use of 30W Ceiling Fan in place of 90/60W Ceiling Fan.
        Use of LED light in place of T-5/T-8 FL tube.
        Uses of energy efficient LED luminaire in coaches.
        LED based tail lamp 5 W in place of 40W conventional type lamp.
        LED based Night light cum berth Indication light of 1W I in place of 15W conventional type lamp.
        Use of 11W CFL fittings in place 18W fluorescent tube light.
        For fuel conservation in AC EOG Coaches the capacitor banks are being provided.
        E- beam cables are being used in coach wiring.
        Regenerative type battery chargers, Dyna drive machines, Alternator & RRU/ERRU testing benches has been installed in workshops & Coaching depots.
        Testing gadget has been installed at JP, BKN & JU for testing of EOG Coaches without Power Car at sick line .