Maintenance area has this incredibly useful room called “Fuel Storage” that upon unlocking and entering teaches you about filling bottles with fuel which is seemengly infinite (idk I didn’t try to empty it)
Right before entering maintance, turning left will lead you to a locked area that can be unlocked either via wrench or bolt cutters. Upon unlocking and entering you find dozens of empty bottles.
Intuitively, you might come up with an idea of molotov cocktails, and it’s correct. But what game is not teaching you, is that these filled bottles are equivalent to an entire canister that is primarily used to fill up the generator. Using a filled bottle on a gen fills it up, but consumes a bottle…for some reason…