Exhibit 99.6

September 9, 2026

Fortis Inc.

Fortis Place, Suite 1100

5 Springdale Street

St. John’s, Newfoundland and Labrador, A1E 0E4

Prospectus Supplement of Fortis Inc.

We refer to the prospectus supplement dated September 9, 2026 (the “Prospectus Supplement”) to the short form base shelf prospectus of Fortis Inc. (the “Corporation”) dated December 9, 2024 forming part of the Registration Statement on Form F-10 (File No. 333-283687) filed by the Corporation with the U.S. Securities and Exchange Commission.

We hereby consent to the use of our firm name under the headings “Legal Matters” and “Documents Filed as Part of the Registration Statement” in the Prospectus Supplement, and consent to the use of our firm’s name and the reference to our opinions under the headings “Eligibility for Investment” and “Canadian Federal Income Tax Considerations” in the Prospectus Supplement.

In giving this consent, we do not acknowledge that we come within the category of persons whose consent is required by the United States Securities Act of 1933, as amended, or the rules and regulations thereunder.