Grid-tied systems can be an ideal solution for those who either don’t have the space or finances available to install solar energy equipment large enough to completely supplement their energy needs.
Since you are still connected to your local power grid, you don’t have to worry about storing the power you generate. The solar power your system creates is stored within your local power grid.
You might even generate more power than your home needs and in many areas, you can sell it back to your local utility company.
For most people who want to shift to a renewable energy source, grid-tied solar systems are the best choice. There’s no risk of not having enough energy because when the sun isn’t shining, you can access power from your local utility grid.