If you are converting to solar, sizing it correctly is critical to both maintaining the system and rationing your power without depleting your battery system during times when sunlight is not readily available or if part of your system is malfunctioning.

Knowing how many kilowatt hours your batteries can store is the key to determining how big your solar array needs to be.

What that means is the key to determining how big your array needs to be or how many modules you need is to understand how much charge your battery array can store.

Each battery has a finite amount of storage capacity and you are drawing the power you use in your house off the batteries, which are charged by your solar array.

The video on the next page shows you how to calculate how many kilowatt hours you use and how much battery power you will need, which helps dictate how big your solar array must be.

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