Well, if each segment of a ship produces 1mil e/sec, and turrets drew from the youngest child entities (with the most parents leading back to the mothership), then those turrets furthest out have the most power to draw on. If they require 2mil e/sec, they can have it. Similar to Kilozulu's idea, they'd also benefit not just from the original parent's shields, but every parent above them. Assuming each of them is on a separate base, then each turret would at the lowest levels have strong shields that need to be taken out one at a time. In this way, a weapons platform could be made that takes some serious abuse to disable, and can still dish it out. Slow as molasses, sure, but in this example speed isn't the asset you're looking for.