Not to be supercillious, but the others are right, in that if you have to ask this question, you should be seeking the help of an electrician. The service panel is nothing to be trifled with.
I'm taking a wild guess, but it sounds like you have a very small solar setup, and the inverter is not designed for grid-tie. If that is the case, you may wish to simply wire a completely independent circuit for your solar, or just use an extension cord / power strip to power a few devices. At least, that would be the best thing to do at first, to get a feel for how much power the system puts out.