"We’re looking at a fleet of SMRs. We have no interest in building a few and walking away"

[FBaggins]

4. You said "outside of remote locations"

Specifically those that currently use diesel generators.

100-300 MWs is far too large for that. For comparison, the largest diesel generator produced by the largest manufacturer (Cat) is about 17.5 MWs. If you think that's their target market, you've misunderstood their size. They are intended to replace full-scale fossil-fuel units.

and specified ancillary costs that are not present for many other generating sources

You specificed "fuel" and "security". Fuel costs are obviously far lower than gas/coal/oil/diesel, so that's not an issue. It's a tiny percentage of the lifetime cost of reactors (and many SMRs are deisigned for long refeuling intervals - or none at all). Security costs are similarly a small portion of the overall expense.