Diesel generators to provide power for Starlink receivers.
The ground dishes can probably set to receive only, no transmission. In a restart civil war scenario, American and Japanese AEW assets can provide the search radar function and transmit the locations of PLAAF's assets to Taiwan air-defense forces through Starlink. The Taiwan air-defense missiles then point their fire-control radar to the targets and fire off the missiles. The radar only needs to be on for a few minutes till the missile reaches terminal guidance phase, then the radar gets turn off and the brigade moves to another location.
Is there any possible way to jam those Starlink receivers by the PLA? Or even the Starlink satellites?
Meanwhile, if China launches AR on Taiwan while the US and her allies avoid direct participation while providing indirect participation, should Beijing send a stern note to Ma Yilong, warning him not to provide Starlink to Taiwan, or risk having his Shangai Gigafactory nationalized by China, among other measures?
I'm sure that's what is happening in Ukraine. In a restarted civil war, China needs to make clear to the US and its vassals that PLA will take out all hostile AEW assets around Taiwan Island.
How to do that if the American and Japanese AEW assets are flying over the Yaeyama Islands? Despite being close to Taiwan, they are still legally recognized as Japanese territory, and doing so would mean an act of war against Japan and the US (if that isn't the intention of Beijing).
That's why Russia did not shoot down NATO AEW assets flying over Romania, Poland and the Baltic states.