It's a mistake to think that all fission is dirty - the Thorium fuel-cycle is actually pretty safe ; even the Norwegians want to try it . More importantly, it may be commercially more viable than Solar or other renewables.
I am not sure of building clustered, autonomous reactors though. It sounds a good idea when it comes to disaster recovery, load-balancing, transmission related waste (and theft) prevention etc. However, procedures and protocols for human intervention are always a good fall back.
On another note, it would be interesting to find out which business interests are driving the N-deal in the US and why. Is is that - who has Uranium reserves have anything to do with why Thorium is being downplayed? India had tonnes and tonnes of Thorium and we need to proceed with research in this area instead of importing dirty Uranium reactors from the US.