Rates update:Effective May 1, 2024, the Ontario Energy Board announced no changes to Time-of-Use (TOU) and Tiered rates. Summer TOU hours and Tiered thresholds will begin May 1. Customers on the Ultra-Low Overnight price plan will not be affected.Effective May 1, 2024, the Ontario Energy Board announced no changes to Time-of-Use (TOU) and Tiered rates. Summer TOU hours and Tiered thresholds will begin May 1. Customers on the Ultra-Low Overnight price plan will not be affected.