"I repurposed the breaker in the house the previous owner had set up for the pump that went to his above ground pool. Some quick math and help from the friendly folks in /r/DIY showed that it would be more than enough to power everything I was looking at for this project. From the main line in, I junctioned off several other outlets as well as the interior lighting and an outlet in the attic of the barn to turn on/off the rope lighting on the exterior above the patio."