What should i do When im choosing an Inverter and Battery for Load shedding?
Tackling Load Shedding
Learn how to calculate your daily power consumption before purchasing our inverters and batteries.
Energy consumption calculation
The energy E in kilowatt-hours (kWh) per day is equal to the power P in watts (W) multiplied by the number of usage hours per day divided by 1000 daily kilowatt-hour:
E(kWh/day) = P(W) × t(h/day) / 1000(kW/h)
E(kWh/day)= P(w) * T(h/day) 1000(kW/h)
=180 * 4 (example) /1000
Appliance Power (W) T (h/day) (KW/h) E(kWh/day)
Desktop Computer 100W 4 /1000 0.4
Laptop 50W 4 /1000 0.2
DVD Player 120W 2 /1000 0.24
DSTV Decoder 40W 24 /1000 0.96
Choosing the correct Inverter and Battery
The size you choose is highly dependent on the watts you would want to run. You will have to calculate the total power consumption of the appliances or tools you would want to run. See example below. Then choose an inverter with at least 20% more than the total energy consumption. Using the example below you would need a minimum 600W Inverter and 100ah Exide battery. If you would wish to plug in more appliances in future then consider getting an 800W inverter.
52 inch LED TV 300W
DVD Player 120W
DSTV Decoder (HD PVR P2) 40W
Total Watts 460 W