Since January 1, 2026, Delaware utilities must show that the costs behind their rates were reasonable when they spent the money.
When regulators review utility rates, utilities must show they spent money reasonably. Regulators may leave all or part of an unreasonable cost out of rates.
Public utilities must show that their rates cover only costs they spent reasonably. This applies when Delaware regulators review a public utility's proposed or existing rates. Regulators judge each cost based on what the utility knew or reasonably should have known when it spent the money. Regulators may leave all or part of an unreasonable cost out of rates. This rule took effect January 1, 2026.
No hearings or votes scheduled.