DSM Initiatives. Rajib Das Senior Manager (Distribution New Initiatives) December 2, 2013

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1 DSM Initiatives Rajib Das Senior Manager (Distribution New Initiatives) December 2, 2013

2 CESC Numbers Item Nos. Item Nos. Area Served 567 sq. km. No. of Consumers 2.7 Million Peak Demand met 1904 MW Loss 11.9% Own Generation Capacity 1225 MW EHT S/S Capacity 3107 MVA Energy Input for Consumers 9809 MU HT S/S Capacity 3134 MVA Average Tariff 610 P MVCA 8P LTAC S/S Capacity 2440 MVA Total Income 5410 Rs. Cr. EHT/HT Network 7725 CKM PAT 618 Rs. Cr. LT Network CKM Figures for 2012/13

3 LOAD CURVE CESC (SUMMER) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 00:15 01:00 01:45 02:30 03:15 04:00 04:45 05:30 06:15 07:00 07:45 08:30 09:15 10:00 10:45 11:30 12:15 13:00 13:45 14:30 15:15 16:00 16:45 17:30 18:15 19:00 19:45 20:30 21:15 22:00 22:45 23:30 MW TIME

4 Day-ahead Demand Projection Intra-State ABT in operation in West Bengal since 2008 All stake-holders are required to submit day-ahead demand projection to the SLDC Scheduling is done as per applicable Regulations Procedure is similar as for inter-state operation UI charge is same as prescribed by CERC

5 LOAD CURVE CESC (AUTUMN) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

6 LOAD CURVE CESC (WINTER) 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0%

7 LOAD DURATION (CESC) 0% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 0% 2% 4% 6% 8% 10% 12% 14% 16% 18% 20% 23% 25% 27% 29% 31% 33% 35% 37% 39% 41% 43% 45% 47% 49% 51% 53% 55% 57% 59% 61% 63% 65% 68% 70% 72% 74% 76% 78% 80% 82% 84% 86% 88% 90% 92% 94% 96% 98% TIME

8 Encouraging ToD Load Research Initiatives Encouraging Energy Audit at Consumer s establishments Encouraging installation of Capacitors for improvement of power factors State-of-the art Metering of Street lighting supplies Intense drive against theft of electricity

9 LOSS REDUCTION Loss (in %) The above loss figures include losses in 220,132 kv Systems which is 2%

10 STREET LIGHT METERING AMR Dawn-&-Dusk Controller Overload Controller Auto Reclosing on overload Remote switching on / off from CESC s Office Major load is covered Revenue improved

11 POWER FACTOR IMPROVEMENT HT Consumer can get rebate of 5% on Energy Charge by improving power factor beyond 97% on drawal during normal period Power factor rebate / surcharge may be applicable for LT Consumers LT Consumers are advised to install capacitor banks HT installation not energized w/o Cap Banks in place Total Cap Banks installed by CESC > 800 MVAR Less Low voltage complaint

12 MASS AWARENESS PROGRAMME Messages through print and electronic media Meeting HT Consumers at their establishments Community participation during festivals Classes at schools to instill awareness amongst the young Appeal to consumers for proper application prior to enhancing load Now a days, consumers formally apply prior to commission an air-conditioner

13 LOAD RESEARCH Across classes of Consumers Domestic, Commercial, Industrial, Utilities Sample Size for door-to-door survey 3500 Survey covers Consumer Satisfaction End use equipment and usage pattern Knowledge about energy efficiency Willingness for energy efficient equipment Contribution of different classes of Consumers to the System Demand

14 DSM AREA Lighting Load MW Street Light : 70 MW Domestic & Commercial Load : 430 MW Municipalities : 100 MW Pumping Stations Drainage P.S. Utilities AC and Fan load Domestic : MW Power factor improvement

15 ToD TARIFF Optional ToD Tariff for Commercial, Industrial, Public Utilities Three Time Zones 06:00 to 17:00 Normal Period 17:00 to 23:00 Peak Period 23:00 to 06:00 Off-peak period ToD Tariff (Energy Charge) for 33kV Industry 06:00 to 17:00 Normal Rate 540 P/kWh 17:00 to 23:00 Peak Rate 810 P/kWh 23:00 to 06:00 Off-peak Rate 373 P/kWh

16 TARIFF Concessions Power factor rebate is higher for ToD Consumers 06:00 to 17:00 for p.f. >97%, rebate 5% 17:00 to 23:00 for p.f. >97% rebate 6% 23:00 to 06:00 for p.f. >97% rebate 4% For Non-ToD Consumers p.f. rebate is only 3% HT Consumers generally maintains p.f. > 95% Load Factor rebate for HT consumers LF 75% to 80% - Rebate of 30 P/kWh for 33kV Consumer ToD Consumers generally maintain higher LF Street Light with LED 95 P/kWh less

17 Other Initiatives Energy audit for all generating stations and establishments done regularly by experts Distribution of CFLs under consideration Survey under Load Research indicates already high penetration of CFLs Upgradation of 6kV distribution to 11 kv Smart Grid Pilot feasibility study is being carried out DR pilot program under consideration About 1000 AMI to be installed soon Net metering for Roof-Top Solar PV Sources

18 Net Metering Arrangement From roof top Solar PV Source Export / Import Meter Supply Meter Export/Import From Licensee s System

19 Generation by a Solar PV Plant of 6 kwp Capacity

20 Cost - Benefit Program costs are required to be included in the MYT Petition Separate approval from the Commission is required only when the capital expenditure exceeds a certain limit Street Light metering, monitoring and controlling involve large amount of costs benefit is also immense Distribution of CFLs to the Life Line Consumers is a viable option

21 Challenges Identifying right knowledge partner Incentivisation on implementing DSM measures Incentives for the participating customers Incentives for the implementing Distribution Company Communication for Automation / AMI Making masses aware Unless mass awareness programmes are well undertaken, it would be difficult for DSM programmes to yield desired results

22 THANK YOU