Everything you need to know about the point of entry for a home's electricity, from an electric panel breakdown to how to hook solar panels into your home's power system.

What to Look for in the Breaker Box Unless your home is very old and has never had its electrical service updated, it has 240-volt service from the street and into the main electrical panel as well.

If the panel on the box next to it has a door that opens, open it, and you should see the circuit breakers that govern the flow of electricity into your home.