Also depends on the well pump. I have a new Grudfos 10SQ07-240-230V on the shelf ready to install this summer, to replace the old-school-no-electronics-million-amp-on-startup pump. With the new pump, there's a bunch of smart electronics going on, dry run protection, overload protection, aaaaaand....wait for it.....two second soft start. So, the basic specs of 230v at 8.4a, is the most of what is actually seen at any point in use. This is something I'm really learning about solar, which is that only half of it is solar itself, and the other half is restructuring what's being powered. That restructuring seems to be money well spent.