Reply by HokieMojo

it seems a popular way to do this is to have an electrician come in to install a subpanel on your exisitng breaker box and then wire out from there. I would add that if you aren’t already pretty sure of your overall plan, you probably should have an electrician come in. I know I wouldn’t be comfortable doing this stuff in my house. A fire in the place I live is just not worth the risk.