Understanding off-peak electric hours in California can significantly reduce your electricity bills and contribute to energy conservation. Off-peak hours refer to times when the demand for electricity is low, leading to lower electricity rates.
In California, major utility companies like Pacific Gas & Electric (PG&E), Southern California Edison (SCE), and San Diego Gas & Electric (SDG&E) offer Time-of-Use (TOU) plans that incentivize consumers to use electricity during these cheaper periods.
This article will delve into what constitutes off-peak hours, why they are important, and how you can take advantage of them to save money and energy.
Why is it Important?
Understanding and utilizing off-peak hours is crucial for several reasons:
- Cost Savings: Electricity rates are significantly lower during off-peak times, which can lead to substantial savings on your energy bills.
- Energy Conservation: Shifting your electricity usage to off-peak hours helps in balancing the load on the power grid, thereby reducing the need for additional power generation and lowering greenhouse gas emissions.
- Optimal Use of Renewable Energy: In California, where solar energy is abundant, using electricity during off-peak hours can help in making the most of solar power, especially since peak hours often coincide with times when solar energy is less available.

Understanding Off-Peak Hours in California
Off-peak hours for electricity usage in California are times when the demand for electricity is low, resulting in lower rates. These hours can vary depending on the utility company and the season.
The major utility companies in California—Pacific Gas & Electric (PG&E), Southern California Edison (SCE), and San Diego Gas & Electric (SDG&E)—have specific Time-of-Use (TOU) plans that define these periods. Below is a detailed overview of off-peak hours for these utilities.
Pacific Gas & Electric (PG&E)
TOU Plan | Off-Peak Hours (Weekdays) | Off-Peak Hours (Weekends) | Notes |
---|---|---|---|
E-TOU-C | Before 4 PM and after 9 PM | All hours | Simplest TOU plan, easy to follow off-peak times. |
E-TOU-D | Before 5 PM and after 8 PM | All hours | Includes partial-peak periods between peak and off-peak. |
Southern California Edison (SCE)
TOU Plan | Off-Peak Hours (Weekdays) | Off-Peak Hours (Weekends) | Notes |
---|---|---|---|
TOU-D-4-9PM | Before 4 PM and after 9 PM | All hours | Suitable for households with late-night energy usage. |
TOU-D-5-8PM | Before 5 PM and after 8 PM | All hours | Offers more flexibility in the evening. |
TOU-D-PRIME | Before 4 PM and after 9 PM | All hours | Best for high-usage customers. |
San Diego Gas & Electric (SDG&E)
TOU Plan | Off-Peak Hours (Weekdays) | Off-Peak Hours (Weekends/Holidays) | Notes |
---|---|---|---|
TOU-DR | 12 AM – 6 AM, 10 AM – 2 PM, 9 PM – 12 AM | All hours except 4 PM – 9 PM | Multiple off-peak periods throughout the day. |
TOU-DR-P | 12 AM – 4 PM, 9 PM – 12 AM | All hours except 4 PM – 9 PM | Includes Super Off-Peak hours with even lower rates. |
TOU-DR2 | 12 AM – 4 PM, 9 PM – 12 AM | All hours except 4 PM – 9 PM | Simple plan with consistent off-peak times. |
Seasonal Variations
Off-peak hours can also vary by season due to changes in energy demand.
Summer
Utility | Off-Peak Hours | Peak Hours |
---|---|---|
PG&E | Before 4 PM and after 9 PM | 4 PM – 9 PM |
SCE | Before 4 PM and after 9 PM | 4 PM – 9 PM |
SDG&E | 12 AM – 6 AM, 10 AM – 2 PM, 9 PM – 12 AM | 4 PM – 9 PM |
Winter
Utility | Off-Peak Hours | Peak Hours |
---|---|---|
PG&E | Before 4 PM and after 9 PM | 4 PM – 9 PM |
SCE | Before 4 PM and after 9 PM | 4 PM – 9 PM |
SDG&E | 12 AM – 6 AM, 10 AM – 2 PM, 9 PM – 12 AM | 4 PM – 9 PM |
Using electricity during off-peak hours not only helps in reducing your electricity bills but also aids in balancing the demand on the power grid. This balance reduces the need for additional power generation, which often involves carbon-intensive energy sources, thus contributing to environmental sustainability.
Additionally, optimizing the use of renewable energy sources like solar power is more feasible during off-peak times.
Tips for Maximizing Off-Peak Usage
- Schedule High-Energy Tasks: Run dishwashers, washing machines, and dryers during off-peak hours.
- Use Timers: Utilize timers on appliances to operate during off-peak periods.
- Smart Thermostats: Program thermostats to adjust temperatures during peak hours to reduce energy consumption.
- Charge Electric Vehicles: Plug in electric vehicles to charge overnight when rates are lowest.
By understanding and strategically utilizing off-peak hours, you can maximize savings and contribute to a more efficient and sustainable energy system in California.
FAQs
What are the typical off-peak hours in California?
Generally, off-peak hours are late at night and early morning, but they can vary depending on the utility company and specific TOU plan.
Can I save money by shifting my electricity usage to off-peak hours?
Yes, shifting high-energy activities like laundry, dishwashing, and electric vehicle charging to off-peak hours can lead to substantial savings.
Are weekends considered off-peak?
In many TOU plans, weekends and holidays are considered off-peak, offering additional opportunities for cost savings.
What are “super off-peak” hours?
Super off-peak hours are periods of extremely low demand, often late at night, where the rates are the lowest.
Conclusion
Taking advantage of off-peak electric hours in California can lead to significant savings and a positive environmental impact. By understanding your specific utility’s TOU plans and adjusting your electricity usage accordingly, you can benefit from lower rates and contribute to a more stable and sustainable power grid. For the most accurate information, always check with your local utility provider about the specific off-peak hours and rates applicable to your area.