When I had the NIMA 14-50 installed in/outside of my garage, the electrician told me that if I need to, I can plug a generator into the outlet and backflow power into my house. I would have to shut off any nonessential switches in the main power box, but the back flow would be fine for lights, heating system, etc. It actually sounds logical and convenient since now I don't have to rewire the box to handle the generator. Has anyone had experience with this? Is it really that straight forward?