Exactly how cold would it get? I remember reports of transmissions seizing up with windmill turbines in regionally cold areas.....costs for maintenance exceeded savings over oil/coal-fired generation costs.
They need some 0W20 lube, good down to -57F.
From what I've read, they require a minimum of 10 mph winds just to turn them. My experience here in S.E. Michigan is that normal winds don't reach the minimum until at least noon and usually die down in the evening unless of course there's a storm or something. That means only about an eight hour window of operation...
That don't mean a hill of beans since these damn things are proven to be federal grant money pits.........