Delaware time-of-use hours by utility
Every Delaware electric utility we track with at least one active time-of-use rate plan, with peak and off-peak hours verified against the published tariff. Periods only — no price values.
Every TOU schedule on this page verified since
Utilities in Delaware
Sorted by number of customers served in Delaware.
Frequently asked
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What are the typical time-of-use on-peak hours in Delaware?
Across the 2 residential TOU plans tou.tools tracks in Delaware, the most common on-peak window is 9 AM – 8 PM (1 plan); others run 10 AM – 9 PM and 3 PM – 6 PM. Every hour outside the on-peak (and any mid-peak) window is billed as off-peak. Exact boundaries vary by utility and plan — see each utility's schedule above.
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Which electric utilities in Delaware offer time-of-use rate plans?
tou.tools tracks 2 Delaware utilities with at least one active TOU rate plan — 5 active schedules in total. The largest by customers served are Delmarva Power and Delaware Electric Cooperative. They span investor-owned utilities and electric cooperatives. The full list above is sorted by customers served.
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Do Delaware time-of-use peak hours apply on weekends?
It depends on the plan. Of the 2 residential TOU plans we track in Delaware, 1 apply on-peak periods every day including weekends, while 1 restrict on-peak to weekdays and treat weekends as off-peak. Many tariffs also treat observed holidays as off-peak; the Days column in each schedule above shows the exact rule.
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Do Delaware time-of-use hours change by season?
Some do. Of the 2 residential TOU plans we track in Delaware, 1 shift their period boundaries between seasons (typically summer and winter), while 1 keep the same hours year-round. Each schedule above lists its exact season dates.
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When is the cheapest time to charge an EV in Delaware?
tou.tools tracks 1 EV-specific rate plan in Delaware (DE-PIV). On EV time-of-use plans the lowest-cost window is generally the overnight super-off-peak or off-peak period; charging then avoids the on-peak window. See the EV plan schedules for the exact hours.
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How do I find which Delaware utility serves a specific address or ZIP code?
tou.tools maps 182 Delaware ZIP codes to the utilities that serve them. Because service territories can overlap, a ZIP may return more than one candidate utility; supplying a full street address resolves it to a single utility via a geocoded point-in-territory lookup. The REST API and MCP server both return the matching utility and its current TOU period.
Time-of-use periods for all of Delaware, one API.
Resolve any Delaware ZIP or address to its utility and get the current period plus the next transition — over REST or MCP.