Exhibit 99.8

Consent of Report of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statement No. 333-264838on Form S-8, Registration Statement No. 333-226663 and its Post-Effective Amendment No. 1on Form S-8, Registration Statement No. 333-236213 and its Post-Effective Amendment No. 2 on Form S-8, Registration Statement No. 333-268493 on Form F-10EF, and Registration Statement No. 333-249039 on Form F-3 and to the use of our reports dated February 9, 2023 relating to the consolidated financial statements of Fortis Inc. and the effectiveness of Fortis Inc.'s internal control over financial reporting appearing in this Annual Report on Form 40-F for the year ended December 31, 2022.

/s/ Deloitte LLP    

Chartered Professional Accountants

St. John’s, Canada

February 10, 2023