Time-of-use rates charge different prices for electricity depending on when you use it. They are designed to encourage customers to move flexible load, such as EV charging or water heating, away from high-demand periods.
For North Carolina solar customers, time-of-use rates matter because Duke Energy’s revised solar options include Rider RSC, or Residential Solar Choice, which the NC Public Staff describes as requiring a time-of-use with critical peak pricing rate schedule. Rider NMB, or Net Metering Bridge, does not require that same time-of-use schedule.
Duke Energy’s Power Manager Battery Control and EnergyWise Home battery control programs also relate to time-varying grid needs. Duke may temporarily adjust enrolled batteries during control events in exchange for bill credits, subject to program rules.
If you’re adding solar, a battery, or an EV charger, ask the installer to model the actual tariff options for your address rather than relying on generic savings claims.
Common questions
- What are Duke Energy's peak hours in North Carolina?
- Peak windows and prices depend on the Duke utility, tariff, season, and enrollment option. Check Duke Energy's current rate documents or enrollment materials before quoting exact hours or prices.
- Should I enroll in a time-of-use rate if I have an EV charger?
- It can help if you reliably charge off peak, but the result depends on your driving schedule, charger settings, household load, and tariff. Model your actual use before switching.
- How do time-of-use rates affect solar savings in North Carolina?
- They can change the value of exported and self-used solar energy. A battery may help shift solar energy into higher-value periods, but the economics depend on the specific rider and usage pattern.