Exhibit 99.8

Consent of Report of Independent Registered Public Accounting Firm

We consent to the incorporation by reference in Registration Statement Nos. 333-215777, 333-226663 and 333-236213 on Form S-8, 333-250996 on Form F-10, and 333-249039 on Form F-3 and to the use of our reports dated February 11, 2021 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, 2020.

/s/ Deloitte LLP    

Chartered Professional Accountants

St. John’s, Canada

February 12, 2021