One doesn't. One doesn't need to. Nobody is siting an isolated photovoltaic farm (presumably charging only local storage?) in place of a nuke. For an off-grid

One doesn't. One doesn't need to. Nobody is siting an isolated photovoltaic farm (presumably charging only local storage?) in place of a nuke. For an off-grid house, the criteria differ. But you won't find a nuke for your house.