Maximize Your Solar Savings with Brightbox and SCE’s Time-of-Use Rates

Boost Your Solar Benefits with Brightbox and SCE’s TOU Rates

A home solar battery system like Brightbox™ gives you clean, reliable energy during a power outage and, it could also save you money by using your stored power when electric rates are higher. Like during those hot summer afternoons when people are blasting their air conditioners to keep their homes comfortable.1

Plus, with Brightbox and Southern California Edison’s Time-of-Use rates, your yearly energy savings have the potential to grow further. Before diving into the details of how Brightbox and SCE’s TOU rates can benefit you and your family, let’s quickly go through what TOU rates are, and the type of plans SCE offers.

What Are TOU Rates?

Time-of-Use rates are pricing structures set by electric companies like SCE, that change depending on the time, the day and the season you use electricity.2

In the summer months, SCE offers three different electric rate schedules: on-peak, mid-peak, and off-peak. And in the winter months, SCE has two rate schedules: mid-peak and off-peak.3

During on-peak hours (early afternoon to early evening), when most people are at home using their devices and appliances; electricity rates cost more compared to off-peak hours (late evening to early morning) when people are already sleeping or have gone to work or school.

TOU rates are becoming a common thing with electric companies across the country, and California is leading the way. According to The Golden State’s Net Energy Metering (NEM 2.0) policy, any homeowner who installs a home solar system in California has to enroll in a TOU rate plan instead of paying single per-kilowatt-hour rates.4

How Do SCE TOU Rate Plans Work?

Since SCE’s TOU rates are based on the time, the day and the season you use energy. If you’re able to run your power-hungry appliances, like your washing machine or your dishwasher, during off-peak hours when electricity prices are lower — TOU rate plans will give you better control of your electric bills and the price you pay for them.5

Now, enrolling in an SCE TOU rate plan doesn’t mean you have to stop your energy usage during on-peak hours. By making small changes to your energy habits, like doing laundry in the early morning or late evening, you could reduce your electric bill.

SCE’s TOU Rate Plans*

SCE Rate Plans Peak Pricing Features Benefits
TOU-D-A 2 p.m. - 8 p.m. Weekdays Higher on-peak rates, offset by a monthly Baseline Credit Better for low and medium energy users (less than 700 kWh/month)
TOU-D-B 2 p.m. - 8 p.m. Weekdays Lower on-peak rates, higher daily basic charge, no Baseline Credit Better for high energy users (more than 700 kWh/month)
TOU-D-T 12 p.m. - 6 p.m. Weekdays Offers two tiers of pricing determined by Baseline Allocation Combines Time-of-Use and Tiered Rate Pricing
TOU-D-4-9PM 4 p.m. - 9 p.m. Summer Weekdays Ideal rates for customers who stay up late May benefit smaller households
TOU-D-5-8PM 5 p.m. - 8 p.m. Summer Weekdays Ideal rates for customers who end the night early May benefit smaller rented dwellings

*SCE’s TOU rate plans are subject to change in the future.

Which TOU Rate Plan Do Brightbox Customers Go On?

After performing in-depth analysis, we Sunrunners believe SCE TOU-D-A rate plan offers more savings for home solar battery system customers. So all Brightbox customers will automatically default to SCE’s TOU-D-A rate plan when applying for solar interconnection.

If SCE’s TOU rate plans change in the future, Sunrun will re-evaluate all TOU plans and choose the one we believe will generate the most savings for our customers.

How Does SCE’s TOU-D-A Rate Work?

SCE’s TOU-DR-SES rate plan offers you more affordable prices at times when there’s less grid demand — before 2:00 p.m. and after 8:00 p.m. on weekdays, and all day during weekends.

SCE TOU-D-A Hours5

TOU-D-A Hours On-Peak Off-Peak Super Off-Peak
June 1 - Sep 30 (Summer) Weekdays 2 p.m. - 8 p.m. Weekdays 8 a.m. - 2 p.m. & 8 p.m. - 10 p.m. Weekdays & Weekends 10 p.m. - 8 a.m.
Oct 1 - May 31 (Winter) Weekdays 2 p.m. - 8 p.m. Weekends 8 a.m. - 10 p.m. Weekdays & Weekends 10 p.m. - 8 a.m.

SCE Rates Time of Day Residential for TOU-D-A Per Season5**

TOU-D-A Rates Per Season On-Peak Off-Peak Super Off-Peak On/Off Spread
Summer June 1 - Sep 30 (Summer) $0.48 $0.28 $0.12 $0.20
Winter Oct 1 - May 31 (Winter) $0.36 $0.27 $0.13 $0.09

**Get the most up-to-date information about SCE’s current TOU-D-A rates.

What Is Brightbox Smart TOU Allocation?

With a TOU rate plan, SCE charges you a higher or lower price depending on the time you use electricity from the grid. But when you have a home solar system with a battery service, like Brightbox, your battery will perform Smart TOU Allocation during on-peak hours in the summer (from June 1 to September 30) to use your stored energy instead of using electricity from the grid. This could help you offset your electric costs and potentially save you more money with each billing period.

sce tou solar battery

Why Doesn’t Brightbox Perform Battery Smart TOU Allocation During Off-Peak Hours?

Brightbox only performs Smart TOU Allocation during the summer to give you the most significant savings possible while balancing your home battery degradation.

Similar to devices such as your phone, cordless vacuum, or rechargeable Wi-Fi camera, the more you use your home solar battery, the faster it wears out. That’s why Brightbox only performs Smart TOU Allocation during the summer when your home energy savings are potentially higher than the cost of your battery’s degradation.

Prepare for the Future with Brightbox, Today

If you were to look outside right now, odds are the sun is shining. Think of all the benefits you’re missing out on! Switching to solar energy could end up saving you thousands of dollars on electricity bills during the next 25 years.6

Whenever you want to talk about solar, Sunrun and the California Sun are here to help you change the way you power your life. See if you qualify today. 

The content on this page has not been reviewed or approved by Southern California Edison.