Pepco time-of-use & off-peak hours in Maryland

On MD-R-TOU-P, 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 Pepco offers in Maryland — 6 plans — with period boundaries verified against the published tariff. No price values; periods only.

Pepco also serves Washington DC — or view all states.

For developers & agents

Query Pepco 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 Pepco in Maryland, with its period boundaries.

MD-R-TOU-P Residential Time-of-Use Program 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
Apr 1, 2024
Verified
MD-GT-LV Time Metered General Service - Low Voltage Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Mid-Peak All year Mon–Fri 8 AM – 12 PM
Mid-Peak All year Mon–Fri 8 PM – 12 AM
Effective
Jul 29, 2024
Verified
MD-MGT-LV-II Time Metered Medium General Service - Low Voltage - Type II Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Mid-Peak All year Mon–Fri 8 AM – 12 PM
Mid-Peak All year Mon–Fri 8 PM – 12 AM
Effective
Jul 29, 2024
Verified
MD-MGT-LV-III Time Metered Medium General Service - Low Voltage - Type III Commercial
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Mid-Peak All year Mon–Fri 8 AM – 12 PM
Mid-Peak All year Mon–Fri 8 PM – 12 AM
Effective
Jul 29, 2024
Verified
MD-PIV Plug-in Vehicle Charging EV
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Sep 1, 2025
Verified
MD-R-PIV Residential Service - Plug-in Vehicle Charging EV
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 12 PM – 8 PM
Effective
Sep 1, 2025
Verified

Frequently asked

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

    On the MD-R-TOU-P plan (Residential Time-of-Use Program), 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 Pepco charge more for electricity at certain times in Maryland?

    Yes. Pepco 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 6 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Pepco 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 Pepco 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 Pepco'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.