The utility estimated residential customers would see an average monthly increase of $2.64 in their gas bills, while small commercial customers would see a $14.07 spike.

The wholesale price of natural gas has gone up, which means the monthly bills of Xcel Energy-Colorado customers will likely follow.

On Wednesday, the Public Utilities Commission approved new peak-rate times for Xcel Energy, paving the way for the company to charge more for electricity between 5 p.m. and 9 p.m. on non-holiday ...

Starting next year, Xcel Energy customers will be able to take advantage of a program with electricity rates that vary based on the time of the day. Customers will need to voluntarily opt in to ...