An off-grid solar system (off-the-grid, standalone) is the obvious alternative to one that is grid-tied. For homeowners that have access to the grid, off-grid solar systems are usually out of question. Here`s why: To ensure access to electricity at all times, off-grid solar systems require battery storage and a backup generator (if you live off-the-grid). On top of this, a battery bank typically needs to be replaced after 10 years. Batteries are complicated, expensive and decrease overall system efficiency. The capacity varies from :- As per customer specification Advantages: Off-grid systems allow home owners to build in remote areas where there are no power lines or limited access to power utilities. They can be thousands of dollars cheaper than having power cables installed.No electricity billsNo electric rate hikesYoull have access to power when grid-reliant customers face power outages, grid outages and rolling blackouts.Youll reduce your carbon footprint and decrease your dependence on energy through more efficient use of power.