Southwestern Electric Power Co time-of-use hours in Texas

On TX-RS-TOU, on-peak hours run 3 PM – 7 PM and 5 AM – 11 PM every day. Below is every active TOU rate plan Southwestern Electric Power Co offers in Texas — 3 plans — with period boundaries verified against the published tariff. No price values; periods only.

Southwestern Electric Power Co also serves Arkansas · Louisiana — or view all states.

For developers & agents

Query Southwestern Electric Power Co periods in Texas 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.

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Rate plan schedules

Every active time-of-use plan we track for Southwestern Electric Power Co in Texas, with its period boundaries.

TX-RS-TOU Residential Time of Use - Pilot Residential
PeriodSeasonDaysHours
Mid-Peak May 1 – Oct 31 Every day 5 AM – 3 PM
On-Peak May 1 – Oct 31 Every day 3 PM – 7 PM
Mid-Peak May 1 – Oct 31 Every day 7 PM – 11 PM
On-Peak Nov 1 – Apr 30 Every day 5 AM – 11 PM
Effective
Mar 1, 2022
Verified
TX-LP-TOU Lighting and Power Time of Use - Pilot Commercial
PeriodSeasonDaysHours
On-Peak Jun 1 – Sep 30 Mon–Fri 1 PM – 7 PM
Effective
Mar 1, 2022
Verified
TX-RS-PEV Residential Service Plug-In Electric Vehicle (PEV) Rider EV
PeriodSeasonDaysHours
On-Peak All year Every day 5 AM – 11 PM
Effective
Mar 1, 2022
Verified

Frequently asked

  1. What are Southwestern Electric Power Co's on-peak hours in Texas?

    On the TX-RS-TOU plan (Residential Time of Use - Pilot), on-peak hours run from 3 PM – 7 PM and 5 AM – 11 PM every day. All remaining hours are classified as off-peak.

  2. Does Southwestern Electric Power Co charge more for electricity at certain times in Texas?

    Yes. Southwestern Electric Power Co 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 3 active schedules; tou.tools does not publish pricing ($/kWh) details.

  3. How do I get Southwestern Electric Power Co 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 Southwestern Electric Power Co 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 Southwestern Electric Power Co's plans in Texas?

    For customers on EV-specific plans like TX-RS-PEV, 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.