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Time-of-Use Rates for Business

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How Time-Of-Use Rates Work

Time-Of-Use (TOU) is part of a statewide initiative designed to keep the electric grid reliable so everyone will have power when they need it.

Unlike flat rates, TOU rates vary by the time of day the energy is used. With these new rates, your bill will be affected by both when you use electricity and how much you use. The majority of business customers have already transitioned to TOU rates, and the remainder will transition by January 1, 2015.

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Time-Of-Use Rate Periods

There are now different TOU rates depending on the season and the time of day the energy is used. They more accurately reflect the costs of energy at the time it is used. With TOU rates, when you use electricity is as important as how much you use.

The greatest demand on the grid is during on-peak periods. If you can shift energy use to off-peak or mid-peak times, you help reduce strain on the grid.

Chart that shows the specific times of day for Off-Peak, Mid-Peak and On-Peak hours during the summer.

Summer Time-Of-Use Hours

Begins June 1 and continues through October 1.

Chart that shows the specific times of day for Off-Peak, Mid-Peak and On-Peak hours during the winter.

Winter Time-Of-Use Hours

Begins October 1 and continues through June 1.

Note: The lower off-peak rate applies on holidays. When any holiday falls on Sunday, the following Monday will be recognized as a holiday. Holidays are New Year’s Day, President’s Day, Memorial Day, Labor Day, Veteran’s Day, Thanksgiving Day, and Christmas.

Energy-Saving Tips By Business Type

Our experts have put together many effective ways you can reduce your energy use by specific business types. Take a look to learn more:


Call 1-866-743-1645 or email TOUsolutions@sce.com.

We're available Monday–Friday, 7 a.m.–7 p.m. (PT) and Saturday 8 a.m.–5 p.m. (PT). You can also view our FAQs.

Cutting Waste & Controlling Use

When you're running a business, every dollar counts. We know that rate increases are tough on business customers, and we want to help. In fact, it's our responsibility. That's why we provide experts to help you you find and eliminate wasted energy, and control your use. Start with the Business Energy Guide.

Business Energy Guide