I'd be surprised if they will. If provider A is selling power at 10 cents/KWh and says that they can handle a once every decade cold spell, and provider B is se

I'd be surprised if they will. If provider A is selling power at 10 cents/KWh and says that they can handle a once every decade cold spell, and provider B is selling power at 9 cents/KWh and isn't taking cold weather precautions, I'd bet that most people will use the cheaper provider. They'll tell themselves that if the extreme event happens again, they'll switch to another provider, or they'll tough it out, or get a hotel or whatever, then they'll be in this same situation where there's no where to go and no where else to buy power from. It needs to be mandated so all power producers incur costs to handle the weather.