Arm wind generator:
 -script: blades don't spin
 -needs new unit pic
Arm basic solar generator:
 -footprint feels too large when it's alive.  The solar has footprint=5 but the wreck has footprint=3; the wreck feels right, as does the solar when it's open, but when it's closed units cant drive between it.  If there's a way to dynamically change footprint on off/on with lua, maybe this is the way to go.
 -needs new unit pic
Core weasel:
 -needs new unit pic
