The real key factor is as the cost of uranium continues to go up and suffers potential shortages and supply issues the cost of installing solar and wind continues to drop - they got planning permission for a solar farm near me about a year ago and it's already half way through having pannels installed, the speed they can do it is only going to keep increasing especially as more automated tools get developed. Then there's the almost certainty of a breakthrough in chemistry reaching market which significant reduces cost and increases the range of locations suitable which would again drastically lower price per kWh while the price of running nukes continues to rise and they're locked into decades of economic loss or they'll choose to close them and all that investment and effort will be for nothing.