Where to start Solar DIY?

Hi all, I am trying to educate myself on a whole home solar system with battery backup and potential grid tie in. I know a little about electrical work to do basic home improvements but need to educate myself on the actual needs and what would go into the system. There is a lot out there and I just get confused around voltages, watts, kwH, etc. If anyone has a good place to start or where I can get some basic information I would appreciate it.