Repair Platforms can repair ships and structures near them. They must be researched before they can be built.
The repair platform are integral to the defense of the Advent Fleet and Structures. In the early game you can build a Repair Platform to hold off a rush, repair your damaged ships, provide support for your Starbase It is highly advised if you designate a planet to be defended by a starbase it be accompanied by 1-2 Repair Platforms. If you are in an early engagement with an opponent and their Capitalship/Fleet you can retreat to a planet under your hold and turn the tide of battle with the repair Platform