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

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

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

ZESCO TARIFFS Metered Residential Tariffs(upto 15kVA) R1-consumption upto 100kWhEnergy Charge/kWhK R2-Consumption between 101 to 300kWhEnergy Charge/kWhK R3-Consumption above 301kWhEnergy Charge/kWhK Fixed Monthly ChargeK14, Prepaid TariffsEnergy Charge/kWhK Commercial Tariffs C1-Consumption upto 700kWh Energy Charge/kWhK Fixed Monthly ChargeK47,753 3.Social Services Tariffs Schools, Hospitals, OrphanagesEnergy Charge/kWhK Churches, Water Pumping, StreetFixed Monthly ChargeK41, Lighting 6/8/2016

ZESCO TARIFFS MAXIMUM DEMAND TARIFFS MD1-Capacity between kVA MD Charge/kVA/MonthK11, Energy Charge/kWhK Fixed Monthly ChargeK114, MD2-Capacity between kVA MD Charge/kVA/MonthK21, Energy Charge/kWhK Fixed Monthly ChargeK228, /8/2016

ZESCO TARIFFS MAXIMUM DEMAND TARIFFS MD3-Capacity between kVA MD Charge/kVA/MonthK39, Energy Charge/kWhK Fixed Monthly ChargeK551, MD4-Capacity between kVA MD Charge/kVA/MonthK39, Energy Charge/kWhK Fixed Monthly ChargeK1,103, /8/2016

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

TYPICAL DAILY LOAD CURVE

 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

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

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

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

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

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

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

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

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

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