In permanent homes, with daily energy consumption, are required medium to large solar installations; particularly with a high number of solar panels. We recommend stationary batteries (gel, open lead acid or lithium *), which allow a system durability of at least 10 years in relation to the battery bank, since the panels have a 25-year guarantee.

* The lithium battery allows for longer life cycles, more depth of discharge, and overall greater durability. They are maintenance free and can be indoors as they do not emit gases.