[Suicide Junkie]

I'm pretty sure the generated supplies from solar panels have to go through the ship they're mounted on before they get passed around in the fleet.

If you had a ship with 1000 supply capacity (currently empty) and a base with 1000 capacity + 1000 regen, then on turn 1, you would get:

action-> ship / fuelbase
fleet-> 0/1000
share-> 500/500
recharge-> 500/1000
turn 2
share-> 750/750
recharge->750/1000

etc.