Potomac Edison time-of-use & off-peak hours

On R-TOU, on-peak hours run 3 PM – 8 PM and 4 PM – 9 PM on weekdays. Below is every active TOU rate plan we track for Potomac Edison — 2 plans — with period boundaries verified against the published tariff. No price values; periods only.

For developers & agents

Query Potomac Edison periods 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 Potomac Edison, with its period boundaries.

R-TOU Residential Time of Use Service Residential
PeriodSeasonDaysHours
On-Peak first Sun of Nov – second Sun of Mar −1d Mon–Fri 3 PM – 8 PM
On-Peak second Sun of Mar – first Sun of Nov −1d Mon–Fri 4 PM – 9 PM
Effective
Apr 20, 2026
Verified
EV-TOU Electric Vehicle Charger Time of Use Rider EV
PeriodSeasonDaysHours
On-Peak All year Mon–Fri 6 AM – 11 PM
Effective
Apr 1, 2025
Verified

Frequently asked

  1. What are Potomac Edison's on-peak hours?

    On the R-TOU plan (Residential Time of Use Service), on-peak hours run from 3 PM – 8 PM and 4 PM – 9 PM on weekdays. All remaining hours are classified as off-peak.

  2. Does Potomac Edison charge more for electricity at certain times?

    Yes. Potomac Edison 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 2 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Potomac Edison 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 Potomac Edison 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 Potomac Edison's plans?

    For customers on EV-specific plans like EV-TOU, 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.