Public utility commissioners are scheduled Wednesday to discuss whether they will open a docket for Xcel's petition that seeks to block Boulder from serving customers in unincorporated Boulder County if the city forms its own electric utility.

The commissioners' weekly meeting is scheduled for 9 a.m. Wednesday at the Colorado Public Utilities Commission building, 1560 Broadway, Suite 250, in Denver.

Xcel Energy filed a petition in May asking the commission to confirm that the PUC, not the city of Boulder, assigns such service territories.

Boulder has said it would take possession of two substations that serve city and county customers. Roughly 5,800 county customers would be affected by the change.

In a Monday filing, Xcel's attorneys asked that the commission accept the petition and allow interested parties to submit briefs on the issue of whether the 5,800 county customers "will automatically become customers of a Boulder municipal utility if Boulder proceeds with any one of its five municipalization plans."

If the commissioners open a docket, a hearing will be set for a later date.

"The city's position is that the PUC does not have jurisdiction over this issue and that the authority for the city to proceed with eminent domain efforts comes from the Colorado Constitution," said Sarah Huntley, a spokeswoman for the city.