So while one part of the crew has been putting up the drywall, another part has been preparing the electrical panel. The original house is getting a new panel; it’s still not exactly clear to me how they’re all going to interconnect along with the solar. There are other parts I don’t really understand, like running a new ground all the way to the front of the house to connect to the plumbing when there’s plenty of ground right under the main panel. I expect there’s a good reason; perhaps to guarantee all the pipes are actually grounded to one another?