Repair ships, supply ships, n' such

[Suicide Junkie]

Repair points apply to everything in the sector.

The supply ships, however, only generate supplies for themselves.

Fleets share supplies, so a supply ship in a fleet will, each turn, fill its tanks using the solar panels (not above max), then share with the fleet.
Sharing is on an absolute supply point basis, not percentage.
AKA the "one for you, one for me, repeat till done" system.