Off- Grid Solar Power System

An off-grid system is not connected to the electricity grid and therefore requires battery storage.

An off-grid solar system must be designed appropriately so that it will generate enough power throughout the year and have enough battery capacity to meet the home’s requirements, even in the depths of winter when there is less sunlight.

The high cost of batteries and inverters means off-grid systems are much more expensive than on-grid systems and so are usually only needed in more remote areas that are far from any electricity grid.

However battery costs are reducing rapidly, so there is now a growing market for off-grid solar battery systems even in cities and towns.

There are different types of off-grid systems which we will go into more detail later, but for now I will keep it simple. This description is for an AC coupled system, in a DC coupled system power is first sent to the battery bank, then sent to your appliances.