Hydro One 2026 Transmission Rate Update (EB-2025-0159)

Official title: 2026 electricity transmission revenue requirement annual update

Closed Regulations & Permits Finance & Consumer Natural Resources
Hydro One is asking the Ontario Energy Board to approve how much money it can collect from electricity customers in 2026 for maintaining and operating the province's transmission grid. This is an annual update under their existing rate framework. The OEB reviews these applications to ensure rates are fair and reasonable.

Why This Matters

Pay an electricity bill in Ontario? Part of your bill covers transmission costs. This proceeding determines how much Hydro One can charge for moving power across the province. Higher approved costs mean higher bills for everyone.

What Could Change

The OEB will set Hydro One's transmission revenue requirement for 2026. This directly affects the transmission portion of electricity rates across Ontario. The decision has already been issued on October 7, 2025, so rates for 2026 are now set.

Key Issues

  • What revenue should Hydro One be allowed to collect for transmission services in 2026?
  • Are the proposed charge determinants and rate pools appropriate?

How to Participate

  1. Review the application documents filed by Hydro One and OEB staff submissions.
  2. Review the Notice of Hearing for information on how to participate in OEB proceedings.

What Happened

The OEB issued a Decision and Order on October 7, 2025, setting Hydro One's transmission revenue requirement for 2026.