Peak and off-peak hours for every U.S. utility on this list. Each has at least one TOU rate plan seeded, verified against the published tariff, and backed by the accuracy guarantee. The list updates as we onboard new utilities.
Hover to see the count. Click a state to view its utilities.
| Utility | Ownership | Customer classes | States served | Rate plans |
|---|
On-peak is the expensive window on the tariff clock; off-peak and super off-peak are the cheap ones. We return period names and clock boundaries — not $/kWh.
Coverage includes residential, commercial, industrial, agricultural, and EV time-of-use rate plans. Filter the list by customer class or search a utility name.
Every period table is encoded from the utility’s published tariff, then re-checked on refresh. If we return a wrong period for a utility on this list, the next month is free.
If we return a wrong TOU period for any utility on this list, we extend your subscription by one month at no cost — your next billing date moves out 30 days. See the terms for the precise definition of "wrong" and the claim process.