Exhibit 15.1

October 28, 2021

The Board of Directors and Shareholders of IDACORP, Inc.

1221 W. Idaho Street

Boise, Idaho 83702

We are aware that our report dated October 28, 2021, on our review of the interim financial information of IDACORP, Inc. appearing in this Quarterly Report on Form 10-Q for the quarter ended September 30, 2021, is incorporated by reference in Registration Statement Nos. 333-65406, 333-125259, and 333-159855 on Form S-8 and Registration Statement Nos. 333-250055 and 333-231555 on Form S-3.

/s/ DELOITTE & TOUCHE LLP

Boise, Idaho