Have you been following the development of small nuclear power modules?

These are defined as: nuclear plants with power output of less than 300 MW -- called small modular power reactors. They differ from big plants because they can be serially produced. [as you've suggested] Multiple units can be installed together for larger needs. Some are small enough to be hauled on a few big trailers.

Warren Buffet and Bill Gates are involved with TerraPower's modular nuclear power plant set for construction in Wyoming. The small reactors, which run on different fuels than traditional reactors, are regarded as a critical carbon-free technology which can supplement intermittent power sources like wind and solar.

In addition to TerraPower, the small nuclear reactor field includes competitors like Rolls Royce SMR Ltd, GE Hitachi Nuclear Energy, and a bunch of others.

The US Air Force has recently selected Alaska's Eielson Air Force Base as its first site to install a small nuclear power module.