Single-Phase Time-of-Use Rate

The Single-Phase Time-of-Use Rate (SPTOU) is designed for consumers who are able to shift more of their electricity use to lower demand or off-peak periods. This rate more accurately passes along the real-time cost of electricity. Electrical energy is more expensive during periods of high demand and less expensive when demand is low. By choosing the Time-of-Use Rate and shifting electricity use to lower-demand time periods, you can save money on your electric bill.

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SPTOU Rate Schedule

Here are some common questions about this rate to help you decide if it is right for you.

What is the SPTOU rate?

Electricity prices vary based on the time of day; the day of the week – weekday vs. weekend; and by season – spring and fall vs. winter and summer. The Time-of-Use Rate program bases the cost of electricity on when it is used and our cost to supply it during that time. Electricity that is used when demand is low is known as off-peak, and has a lower cost than electricity used during periods of high demand, or on-peak.

Off-peak hours account for about 94 percent of the hours in a year and electricity used during these times is discounted by 25 percent. The remaining 6 percent of hours in a year are on-peak and electricity used during these times is charged a premium.


Monthly Rate

Summer On-Peak Energy: $0.375 per kWh
Winter On-Peak Energy: $0.3 kWh
All Off-Peak Energy: $0.075 per kWh

Download the complete SPTOU Rate Schedule.

When are the on-peak and off-peak periods?

On-peak hours are defined as follows:

  • Summer: June through August, 4-8 p.m. EDT, Monday through Friday.
  • Winter: December through February, 7-9 a.m. EST and 6-9 p.m. EST, Monday through Friday.

Off-peak hours are all remaining hours. The charts below illustrate both on-peak and off-peak time periods.



How can I determine if the SPTOU rate is right for me?

If you are able to control when you use electricity, or if you can shift more of your usage to off-peak times, you may benefit from this rate. Things to consider:

  • Is anyone home during the on-peak hours?
  • Do you heat and air condition your home with electricity? Do you or could you use a programmable thermostat?
  • Do you have a pool pump and/or a hot tub? Would you be willing to use timers for them?
  • Do you use an electric water heater?
  • Do you use an electric dryer? Could you dry your clothes during off-peak hours?

Is there a cost to sign up for the SPTOU rate?

No, there is no additional cost to sign up for this rate.

If I switch to the SPTOU rate, how long must I stay on it?

Consumers who enroll in Time-of-Use must remain on this rate structure for a minimum of 12 months.

How do I get started?

Fill out the authorization form to switch to this rate.

This SPTOU rate information is also available in downloadable PDF format.