What Capacity Do I Need?

One Bedroom Flat

Inverter Sizing

We average efficiency at 75%, hence 480/0.75 = 640VA

 

Battery Sizing

3395 / (0.75×12) = 377AH/12v

 

Solar Panel Sizing

Taking 4.7hrs as minimum span of daily sunshine we have;

3395 / (0.75/4.7) = 963watts

Using 150 watt (5.71amp) panels, there would be 7 panels in total

 

Charge Controller Sizing

5.71×7 = 40 amps charge controller

Summary

Two Bedroom Flat

Inverter Sizing

We average efficiency at 75%, hence 1450/0.75 = 1933VA

 

Battery Sizing

14,175 / (0.75×24) = 787AH/24v

 

Solar Backup Sizing

Available on request

Summary

Duplex

Inverter Sizing

We average efficiency at 75%, hence 2,435/0.75 = 3,247 VA

 

Battery Sizing

23,255 / (0.75×48) = 646AH/48v

 

Solar Backup Sizing

Available on request

Summary

Note:

 

The Inverter back up system costs reduce as the number of batteries requested and also reduction in service time i.e. the more the batteries, the longer the inverter system lasts.

 

Due to the unstable economy, the prices might vary slightly, call us today to place your order.

 

Thanks for your patronage.

 

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