Do I need a generator as a backup for off-grid solar?

By South West Tech

In most cases, yes.

While a properly designed off-grid solar and battery system can power your property for the vast majority of the year, a backup generator provides an extra layer of reliability during extended periods of cloudy weather or unusually high electricity usage.

A generator doesn't need to run often, but when it's needed, it can recharge the batteries and ensure you continue to have power without putting unnecessary strain on the battery system. For many off-grid properties, it's an important part of a reliable power solution rather than a sign that the solar system is undersized.

Size Your Backup Generator

If you're planning an off-grid system, choosing the right generator is just as important as sizing your solar panels and batteries.

Our Generator Size Calculator can help estimate the generator capacity required for your property based on the appliances and equipment you need to run.