(UPDATE Thursday 1:45 PM: Xcel Energy has told customers they can return their thermostats to normal. You can find our current, updated story about the cold wave in Minnesota here.)
The brutal cold gripping Minnesota made itself felt in tens of thousands of living rooms Wednesday as Xcel Energy resorted to asking customers to turn their thermostats down to 63 degrees to conserve natural gas.
The request to Xcel's more than 400,000 customers came as the utility strained in the sub-zero temperatures to keep up with heating demand.
And a few Minnesotans dealt with the nightmare of having no heat at all.
About 150 homes in the Princeton area, about an hour north of Minneapolis, lost natural gas service about 10:30 p.m. Tuesday. In response, Xcel asked about 12,000 customers in nearby Becker, Big Lake, Chisago City, Lindstrom, Princeton and Isanti to turn down their thermostats to 60.
Later in the day, the company expanded that request to all of its 460,000 gas customers in Minnesota, although Xcel expected to keep the advisory in place only until Thursday.
The heating issues weren't the only challenge posed by the once-in-a-generation chill, as Minnesotans also suffered new frostbite cases, broken water lines and transportation breakdowns.
In the Princeton area, police and fire officials went door-to-door to inform residents about the gas shut-off and that Xcel would put them up in nearby hotels. About two-thirds of those affected by the outage accepted the offer, said company spokesman John Marshall.