To go solar off-grid, a battery bank will be needed to store your power for use when the sun isn’t shining. The first thing people want to know when talking about a battery bank is how much space will it take up?
That of course depends on how much power you’ll need to store. For a normal family home of 4 bedrooms, approximately 24 cells will be required. Every three months the batteries will need to be topped up with demineralised water if they are a flooded lead acid battery – gel batteries, are a little more expensive but don’t require any maintenance.
Overall, your battery bank should last around 12 to 15 years if properly cared for and kept above 80% depth of discharge.