SpaceX has enough of a lead over everyone else that I don’t think them simply being denied government contracts is feasible, in a too-big-to-fail way.
You’d see some kind of forced nationalisation or being strongarmed into selling to another defense contractor on national security grounds.
Elmo might choose some kind of “if I can’t have it, no one can” sabotage though.
Even 95% is on the low side. Most residential-grade PV grid-tie inverters are listed as something like 97.5%. Higher voltage versions tend to do better.
Yeah, filters essentially store power during one part of the cycle and release it during another. Net power lost is fairly minimal, though not zero. DC needs filtering too: all those switchmode power supplies are very choppy.