Duke Energy Carolinas peak
& off-peak hours in South Carolina
Below is every active TOU rate plan Duke Energy Carolinas offers in South Carolina — 6 plans — with period boundaries verified against the published tariff. No price values; periods only.
Duke Energy Carolinas also serves North Carolina — or view all states.
Rate Plans
No rate plans match those filters.
RE-TC Schedule RE-TC — Residential All-Electric Service, Time of Use with Critical Peak Pricing
Residential| Period | Days | Hours |
|---|---|---|
| May 1 – Sep 30 | ||
| Super Off-Peak | Every day | 1 AM – 6 AM |
| On-Peak | Mon–Fri | 6 PM – 9 PM |
| Oct 1 – Apr 30 | ||
| Super Off-Peak | Every day | 1 AM – 3 AM |
| On-Peak | Mon–Fri | 6 AM – 9 AM |
| Super Off-Peak | Every day | 11 AM – 4 PM |
RS-TC Schedule RS-TC — Residential Service, Time of Use with Critical Peak Pricing
Residential| Period | Days | Hours |
|---|---|---|
| May 1 – Sep 30 | ||
| Super Off-Peak | Every day | 1 AM – 6 AM |
| On-Peak | Mon–Fri | 6 PM – 9 PM |
| Oct 1 – Apr 30 | ||
| Super Off-Peak | Every day | 1 AM – 3 AM |
| On-Peak | Mon–Fri | 6 AM – 9 AM |
| Super Off-Peak | Every day | 11 AM – 4 PM |
R-STOU Schedule R-STOU — Residential Solar Service, Time-of-Use
Residential| Period | Days | Hours |
|---|---|---|
| Mar 1 – Nov 30 | ||
| Super Off-Peak | Every day | 12 AM – 6 AM |
| On-Peak | Mon–Fri | 6 PM – 9 PM |
| Dec 1 – Feb 29 | ||
| On-Peak | Mon–Fri | 6 AM – 9 AM |
| On-Peak | Mon–Fri | 6 PM – 9 PM |
RT Schedule RT — Residential Service, Time-of-Use
Residential| Period | Days | Hours |
|---|---|---|
| May 1 – Sep 30 | ||
| Super Off-Peak | Every day | 1 AM – 6 AM |
| On-Peak | Mon–Fri | 6 PM – 9 PM |
| Oct 1 – Apr 30 | ||
| Super Off-Peak | Every day | 1 AM – 3 AM |
| On-Peak | Mon–Fri | 6 AM – 9 AM |
| Super Off-Peak | Every day | 11 AM – 4 PM |
RT-EV Schedule RT-EV — Residential Service, Time of Use with Discount Charging Period
Residential| Period | Days | Hours |
|---|---|---|
| Super Off-Peak | Every day | 11 PM – 5 AM |
OPT Schedule OPT — Optional Power Service, Time-of-Use
Commercial| Period | Days | Hours |
|---|---|---|
| Jun 1 – Sep 30 | ||
| On-Peak | Mon–Fri | 1 PM – 9 PM |
| Oct 1 – May 31 | ||
| On-Peak | Mon–Fri | 6 AM – 1 PM |
Use these Duke Energy Carolinas hours in your app.
Current period and next transition for any ZIP or address.
FAQ's
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What are Duke Energy Carolinas's on-peak hours in South Carolina?
On the RE-TC plan (Schedule RE-TC — Residential All-Electric Service, Time of Use with Critical Peak Pricing), on-peak hours run from 6 PM – 9 PM and 6 AM – 9 AM on weekdays. All remaining hours are classified as off-peak.
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Does Duke Energy Carolinas charge more for electricity at certain times in South Carolina?
Yes. Duke Energy Carolinas 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.
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How do I get Duke Energy Carolinas 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.
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Do Duke Energy Carolinas 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.