It has happened, we have a normal shower inside the house, the hot water of which happens through no intervention of our own.
In reality, it’s because of our recent grid tie in that we have enough electricity to keep a hot water heater going. The showers are nicer mostly because they no longer require logistics. I moved buckets of hot water from the stove for years. Now we can just hop in and have a shower in the Winter months. Nothing beats the outside shower the other half of the year. There’s still a lot of things we want to do to be more self sufficient. Playing with an electric hot water heater is interesting, I get to see how much power it draws, and how much heat is preserved via insulation. This will instruct future improvements. For now we’re just enjoying easier showers thanks to the grid.