These systems must connect to the grid to function. They can send excess power generated back to the grid when you are overproducing so you credit it for later use.
An off-grid solar system is designed for the power needs of mid- to large-size homes. Unlike grid-tied solar systems, off-grid systems have no connection with the utility grid, and must make all the electricity necessary to power your home
Hybrid solar panel systems are similar to a grid solar system but use batteries to store energy for later use.
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