May 1 update:As of May 1, summer Time-of-Use (TOU) hours and Tier thresholds are in effect. Customers on the Ultra-Low Overnight price plan are not affected, and electricity rates remain unchanged.As of May 1, summer Time-of-Use (TOU) hours and Tier thresholds are in effect. Customers on the Ultra-Low Overnight price plan are not affected, and electricity rates remain unchanged.