The selection of Proper inverter is very important for the safe working of your home appliances and also the battery. So in this article i am sharing the exact ideas about What size inverter do i needs for my home. From this you can also recalculate it and make it your own.
Calculation
Home electrical load calculation
The home electrical wiring contains 4 Led lights , 2 Fans, 1 Tube light, and 1 tv. The total wattage require is calculated as.
| 4 LED light | 4 * 25 w = 100w |
| 2 FAN | 2*80 = 160w |
| 1 TV | 1* 50 w = 50w |
| 1 Tube Light | 1* 40 =40w |
| Total watts needed | 350 watts |
Inverter size selection calculation
- House load is 350 watts
- consider 50% load on inverter so 350*2 = 700watts
So you need to select a 1000 watts rated inverter for smooth working of home appliances with no issues in future. The DC current required for loading 350 watts is calculated as
P = V * I
I = p / v
P = 350 watts V = 12 v from the battery
So,
I = 350/12 = 29.12 = 30A
30 A current will takes by the inverter so we need to calculate the battery Ah also.
Battery size AH selection
Battery AH = W * H / V
Watts = 350, H = 8 hour, V = 12v
Battery AH = 350 * 8 / 12
The required battery Ah is 233 Ah, in common standard rating of battery Ah you needs to select a 250 Ah battery.
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