South Carolina Public Service Authority time-of-use hours

On RT-25, on-peak hours run 3 PM – 6 PM and 6 AM – 9 AM every day. Below is every active TOU rate plan we track for South Carolina Public Service Authority — 4 plans — with period boundaries verified against the published tariff. No price values; periods only.

For developers & agents

Query South Carolina Public Service Authority 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 South Carolina Public Service Authority, with its period boundaries.

RT-25 Residential Time-of-Use Residential
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Every day 3 PM – 6 PM
On-Peak Nov 1 – Mar 31 Every day 6 AM – 9 AM
Effective
Apr 1, 2025
Verified
GT-25 General Service Time-of-Use Commercial
PeriodSeasonDaysHours
On-Peak Apr 1 – Oct 31 Every day 3 PM – 7 PM
On-Peak Nov 1 – Mar 31 Every day 5 AM – 9 AM
Effective
Apr 1, 2025
Verified
REV-25 Residential Electric Vehicle Power EV
PeriodSeasonDaysHours
On-Peak All year Every day 5 AM – 11 PM
Super Off-Peak All year Every day 11 PM – 5 AM
Effective
Apr 1, 2025
Verified
RG-25-EVO Residential Electric Vehicle Power Only Rider EV
PeriodSeasonDaysHours
On-Peak All year Every day 5 AM – 9 PM
Super Off-Peak All year Every day 9 PM – 5 AM
Effective
Apr 1, 2025
Verified

Frequently asked

  1. What are South Carolina Public Service Authority's on-peak hours?

    On the RT-25 plan (Residential Time-of-Use), on-peak hours run from 3 PM – 6 PM and 6 AM – 9 AM every day. All remaining hours are classified as off-peak.

  2. Does South Carolina Public Service Authority charge more for electricity at certain times?

    Yes. South Carolina Public Service Authority 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 South Carolina Public Service Authority 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 South Carolina Public Service Authority 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 South Carolina Public Service Authority's plans?

    For customers on EV-specific plans like REV-25, RG-25-EVO, 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.