Power Generators, when broken down, currently suffer no penalty

Right now, power generators consume maintenance. However, if they break down, other than having the broken symbol on them, nothing changes. They still consume all the mechanical power they ordinarily would and they still output the normal amount of electrical power. The game should either: 1) stop consuming maintenance for these items (unlikely), 2) consume maintenance but don't "break down" (effectively what we have today, except removing the broke down icon), or 3) have being broken negatively affect the equipment in some way.
I suppose it's possible it does and I just don't have the appropriate realism setting enabled. I'll have to check.