The thing that worries me about nuclear power is that it takes something like 7 years to build, and renewables are on a declining cost curve. If you finish building your reactor 7 years from now and you can't compete with other forms of power generation, what do you do with that asset? Nobody will buy it, you can't sell the product. That's not even accounting for the payback period of it either.
I'm just a layman so I'm sure there are nuances I'm missing and I think we need all options on the table when it comes to moving away from fossil fuels. That said it seems like a very risky thing to be investing in to me.