On-grid or grid-tie solar systems are the most common choice for homes and businesses. These systems connect directly to the public grid without the need for expensive batteries, using high-efficiency solar inverters.

Blackout Safety: For the safety of grid workers, these systems automatically shut down during power outages. If you need power during blackouts, hybrid systems with "islanding" capabilities are recommended.

Batteries are able to be added to on-grid systems at a later stage if required. The Tesla Powerwall 2 is a popular AC battery system which can be added to an existing solar system.