Delmarva Power time-of-use hours in Maryland

On MD-R-TOU-ND, on-peak hours run 2 PM – 7 PM and 6 AM – 9 AM and 5 PM – 9 PM on weekdays. Below is every active TOU rate plan Delmarva Power offers in Maryland — 4 plans — with period boundaries verified against the published tariff. No price values; periods only.

Delmarva Power also serves Delaware — or view all states.

For developers & agents

Query Delmarva Power periods in Maryland programmatically.

One call returns the current period and the next transition time for any U.S. ZIP or address — GET /query/current over REST, or the same data through MCP for AI agents.

Get a free API key Read the docs

Rate plan schedules

Every active time-of-use plan we track for Delmarva Power in Maryland, with its period boundaries.

MD-R-TOU-ND Residential Time-of-Use Non-Demand Residential
PeriodSeasonDaysHours
On-Peak Jun 1 – Sep 30 Mon–Fri 2 PM – 7 PM
On-Peak Oct 1 – May 31 Mon–Fri 6 AM – 9 AM
On-Peak Oct 1 – May 31 Mon–Fri 5 PM – 9 PM
Effective
Jan 1, 2023
Verified
MD-R-TOU-P Residential Time-of-Use Program (Pilot) Residential
PeriodSeasonDaysHours
On-Peak Jun 1 – Sep 30 Mon–Fri 2 PM – 7 PM
On-Peak Oct 1 – May 31 Mon–Fri 6 AM – 9 AM
On-Peak Oct 1 – May 31 Mon–Fri 5 PM – 9 PM
Effective
Sep 1, 2024
Verified
MD-PIV Plug-In Vehicle Charging EV
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Nov 1, 2022
Verified
MD-R-PIV Residential with Plug-In Vehicle Charging EV
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Apr 1, 2019
Verified

Frequently asked

  1. What are Delmarva Power's on-peak hours in Maryland?

    On the MD-R-TOU-ND plan (Residential Time-of-Use Non-Demand), on-peak hours run from 2 PM – 7 PM and 6 AM – 9 AM and 5 PM – 9 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Delmarva Power charge more for electricity at certain times in Maryland?

    Yes. Delmarva Power offers time-of-use (TOU) rate plans where electricity costs vary depending on the period. The period—peak, off-peak, mid-peak, or super off-peak—depends on the time, day, and season. This page lists boundaries for 4 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Delmarva Power time-of-use periods in my app?

    Schedules are accessible programmatically via the tou.tools REST API and MCP server for AI agents. By querying a U.S. address or ZIP code, your application can instantly retrieve the current period and next scheduled transition time. Developer API keys are free.

  4. Do Delmarva Power time-of-use hours change during holidays or seasons?

    Yes. Peak hours and rate periods can vary by season (typically summer and winter halves) and special holidays. While some schedules like E-ELEC keep stable hours year-round, others introduce super off-peak windows or adjust peak times. Check each rate plan card above for specific seasonal boundaries.

  5. What is the best time to charge an EV under Delmarva Power's plans in Maryland?

    For customers on EV-specific plans like MD-PIV, MD-R-PIV, the most cost-effective time to charge is during super off-peak or off-peak hours. Charging during these designated windows significantly reduces electricity costs and minimizes demand on the grid.