These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Fridge Logic: Solar power is NEVER used. For nothing. A serious problem in the second book revolves around Earth being cut off from interstellar fuel. No one mentions solar power. Coal, nuclear, sure, solar, never even though the SAPL is basically solar power writ large it's never even mentioned. Everything runs off He3 to the point where it's very odd.
More to the point, He3 is mentioned to be extremely rare, and the fuel stations pumps a lot of atmosphere to get it. You'd think they might try harvesting fuel for fusion too. That way, you get high efficiency ground power plants, and spacecraft that are in the realm of possibility for most modern industrialized countries to build. For that matter, after Vernon decides to use a clean fusion bomb-pumped ORION engine for the battleglobes, you would think Earth might start trying to build ORION shuttles. They could probably carry a similar cargo capacity to Paw tugs, whilst being exceptionally cheaper to produce and run.
Howard Taylor: I wish those Ringo books were canon, but no, they're not. John and I haven't compared notes in three years. We've diverged. We'd need a nuclear shoehorn to make these things fit in the same, consistent space. Hopefully that doesn't ruin anybody's fun. If you want to create a section [in the Schlock Mercenary wiki] for "Reconciling Schlock Mercenary with Troy Rising" you have our blessing.