I've not seen any reports of problems with the power companies.

I just checked and we're set at 64 degrees and the temperature inside is 69 degrees (the HVAC gets the temperature above the setting and let's it drop). So I dropped the setting to 63. I feel fine but I'm wearing two pairs of wool socks and long underwear.

Things that could cause this: problem with heating system, inadequate heating capacity, insufficient insulation, leaks.