1. INTRODUCTION TO DEMAND SIDE MANAGEMENT(DSM) PRESENTED TO ZAMBIA ASSOCIATION OF MANUFACTURERS ENERGY EFFICIENCY AND CONSERVATION WORKSHOP 5-6 SEPTEMBER 2013 COURTYARD HOTEL LUSAKA

2. PRESENTATION LAYOUT 1.DEMAND SIDE MANAGEMENT OVERVIEW 2.NEED FOR ENERGY EFFICIENCY 3.COMMERCIAL 4.INDUSTRIAL 5.CONCLUSION 6/8/2016

3. ENERGY EFFICIENCY  DEMAND SIDE MANAGEMENT  REDUCTION IN MAXIMUM DEMAND  SHIFTING OF LOAD AWAY FROM PEAK TO TAKE ADVANTAGE OF OFF PEAK TARIFFS  PROCESS EFFICIENCIES  ENERGY EFFICIENT EQUIPMENT  POWER FACTOR IMPROVEMENTS 6/8/2016

4. ZESCO TARIFFS-2013 1.Metered Residential Tariffs(upto 15kVA) R1-consumption upto 100kWhEnergy Charge/kWhK152.00 R2-Consumption between 101 to 300kWhEnergy Charge/kWhK250.70 R3-Consumption above 301kWhEnergy Charge/kWhK408.62 Fixed Monthly ChargeK14,629.31 Prepaid TariffsEnergy Charge/kWhK278.33 2.Commercial Tariffs C1-Consumption upto 700kWh Energy Charge/kWhK266.13 Fixed Monthly ChargeK47,753 3.Social Services Tariffs Schools, Hospitals, OrphanagesEnergy Charge/kWhK239.40 Churches, Water Pumping, StreetFixed Monthly ChargeK41,515.13 Lighting 6/8/2016

5. ZESCO TARIFFS-2013 4.MAXIMUM DEMAND TARIFFS MD1-Capacity between 16-300kVA MD Charge/kVA/MonthK11,690.53 Energy Charge/kWhK168.08 Fixed Monthly ChargeK114,497.08 MD2-Capacity between 301-2000kVA MD Charge/kVA/MonthK21,871.21 Energy Charge/kWhK143.45 Fixed Monthly ChargeK228,992.72 6/8/2016

6. ZESCO TARIFFS-2013 4.MAXIMUM DEMAND TARIFFS MD3-Capacity between 2001-7500kVA MD Charge/kVA/MonthK39,717.06 Energy Charge/kWhK127.23 Fixed Monthly ChargeK551,563.44 MD4-Capacity between 7500-10000kVA MD Charge/kVA/MonthK39,938.12 Energy Charge/kWhK104.97 Fixed Monthly ChargeK1,103,125.30 6/8/2016

7. MAXIMUM DEMAND TIME OF USE INCENTIVES Peak Time:18:00 to 22:00 Off Peak Time:22:00 to 06:00 Standard Time:06:00 to 18:00 –Standard time is charged at rates as per chart –Peak time consumption is surcharged at 25% for both capacity and energy –Off Peak consumption is charged at 50% discount for capacity and 25% for energy 6/8/2016

9. TYPICAL DAILY LOAD CURVE

10.  ENERGY EFFICIENCY  STUDIES HAVE SHOWN UP TO 20% SAVING OF THE DOMESTIC ELECTRICITY DEMAND  REDUCTION IN ENERGY UTILISATION  CUSTOMER SAVES MONEY  IMPROVEMENT IN PRODUCTION  ENHANCE COMPETITIVENESS  INCREASE MARKET SHARE ENERGY EFFICIENCY 6/8/2016

11. SECURITY/OUTDOOR LIGHTING HOMES, HOTELS, INDUSTRY Save 80% by replacing ML 160w with Master Ecotone 45w/65w lamps

12. COMMERCIAL INSTALL ROOM OCCUPANCY SENSORS – to switch off lights & air-conditioning in unoccupied rooms INSTALL POWER FACTOR CORRECTION EQUIPMENT (where lots of electric motors are in use) REPLACE ORDINARY BULBS WITH ENERGY SAVERS (CFLs) REPLACE MERCURY VAPOUR LAMPS WITH METAL HALIDE LAMPS (45W/60W FOR 160W) FOR OUTDOOR LIGHTING

13. ROOM OCCUPANCY SENSORS INSTALL IN EACH ROOM SWITCHES OFF LIGHTS & AIRCONS IN UNOCCUPIED ROOMS

14. INDUSTRIAL INSTALL ELECTRIC MOTOR OPTMISERS ON BIG MOTORS USE VARIABLE SPEED DRIVES (VSDS) FOR PULLEY COUPLED DRIVES INSTALL POWER FACTOR CORRECTION EQUIPMENT(CAPACITOR BANKS) DO NOT START ALL YOUR MACHINES AT THE SAME TIME TO AVOID CREATING LOCAL PEAK LOADS ARREST ALL COMPRESSED AIR LEAKS INSULATE ALL STEAM PIPES CORRECTLY

15. INTELLIGENT BECAUSE IT MATCHES POWER INPUT TO SHAFT LOAD SAVES UP TO 40% ENERGY HAS INBUILT SOFT START/STOP REDUCES INRUSH CURRENTS 6/8/2016 INTELLIGENT MOTOR CONTROLLERS

16. FLOOR MOUNTED CAPACITOR BANK Power factor correction Reduces KVA input Save up to 15% energy

17. VARIABLE SPEED DRIVES (VSD ) SAVE UP TO 15% ENERGY CONTROL MOTOR OPERATIONS IN RELATION TO LOADING AND UTILISATION

18. OUTDOOR LIGHTING: USE METAL HALIDE LAMPS REPLACE THE INEFFICIENT MERCURY VAPOUR LAMPS WITH METAL HALIDE LAMPS 400W/250W MV LAMPS WITH 160W METAL HALIDES CAN BE USED IN STREET LIGHTING AND OUTDOOR LIGHTING METAL HALIDES HAVE INBUILT SENSORS TO RUN DIM WHEN NO TRAFFIC ON ROAD ENHANCED BRIGHTNESS

19. CONCLUSION ENERGY EFFICIENCY IN CUSTOMERS’ LONG TERM INTEREST CUSTOMER SAVES ENERGY CUSTOMER SAVES MONEY IMPROVEMENT IN PRODUCTIVITY AND EFFICIENCIES ENHANCE COMPETITIVENESS OF INDUSTRY SAVED ENERGY CAN BE USED FOR OTHER DEVELOPMENT NEEDS CONTRIBUTE TO DEVELOPMENT OF COUNTRY- SAVED RESOURCES CAN BE DEPLOYED ELSEWHERE 6/8/2016