Not the part where they plug the panels into a wall outlet. In the US getting the permits for grid tie is a huge expense and hassle so it would make no sense t

Not the part where they plug the panels into a wall outlet. In the US getting the permits for grid tie is a huge expense and hassle so it would make no sense to do it for just a couple of panels. You need permission not only from the local government, but the power company, and possibly an HOA. If you did this you would buy some Bluetti or similar power bank to charge off of the panels and use that power to run lights or maybe a mini-split heat pump so you can launder your energy savings through not having to run your home's grid-tie heat pump as much.