Supplemental solar power, anyone have info?

[8zeros]

There are three basic types of systems:
Grid tie only, no way to run off batteries. A way to get payed to feed electricity to the grid.
Off grid, or battery only, a way to live off the grid or can be used as backup.
Hybrid systems that charge batteries, back feed the grid and provide backup.
Some have inputs for supplemental generators, with auto start, for when the batteries go low.

What are you thinking of as a system?