Northern States Power 10-K 2015 FY Annual report

Exhibit 23.01

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the incorporation by reference in Registration Statement No. 333-203664-02 on Form S-3 of our report dated February 22, 2016, relating to the consolidated financial statements and financial statement schedule of Northern States Power Company, a Wisconsin corporation, and subsidiaries appearing in this Annual Report on Form 10-K of Northern States Power Company, a Wisconsin corporation, for the year ended December 31, 2015.

/s/ DELOITTE & TOUCHE LLP

Minneapolis, Minnesota

February 22, 2016