Document

We have issued our report dated June 14, 2024, with respect to the financial statements and supplemental information included in the Annual Report of Northwest Natural Gas Company Retirement K Savings Plan on Form 11-K for the year ended December 31, 2023. We consent to the incorporation by reference of said report in the Registration Statements of Northwest Natural Holding Company on Form S-8 (File Nos. 333-180350-01 and 333-275346).