Time-of-Use (TOU) pricing means an SCE kilowatt-hour costs far more between 4 pm and 9 pm than at midday or overnight, so for a Southern California home the bill depends on when you use power, not only how much. A home battery, scheduled EV charging and a smart panel move your biggest loads out of the expensive window automatically. Under NEM 3.0 (the CPUC net billing tariff) midday solar exports earn much less than they used to, which makes self-consumption and storage more valuable. Actual savings depend on your rate plan, usage, solar size and equipment, so confirm current SCE rates on the utility’s website and ask for a written estimate for your home.
What SCE’s TOU Plans Mean for Your Bill
SCE offers several residential TOU plans, and many customers are on an evening-peak plan. Check your own bill for the plan name and exact hours, because they change.
| Period | Typical pattern | What it means |
|---|---|---|
| Off-peak | Overnight and midday | Lowest prices; solar is producing |
| Peak (evening) | Roughly 4 pm to 9 pm, every day | Highest prices; cooking, laundry, A/C and EV charging all overlap |
The trap: solar panels produce at midday, but the biggest household loads run in the evening. Under NEM 3.0, exports at midday earn a fraction of the retail rate, while evening imports cost the most. See our guide to NEM 3.0 net billing and home batteries for how the export credit works.
Store Midday, Discharge in the Evening
A properly configured battery changes the pattern:
- Midday: solar charges the battery instead of exporting at a low credit.
- Evening peak: the battery powers the house, so you draw little from the grid at peak prices.
- Overnight: if the battery needs a top-up, it can charge during off-peak hours.
The size of the saving depends on your usage and plan. Ask for an estimate based on your own SCE bills rather than a rule of thumb.
Automate the Rest with a Smart Panel
A smart panel or energy management system removes the manual work:
- EV charging schedule: plug in at 6 pm and let charging start when off-peak begins. See Level 2 EV charger installation in LA County.
- Load shifting: water heaters and pool pumps run in cheaper hours.
- Battery rules: dispatch follows your rate schedule. Learn more in our SPAN smart panel guide.
- Load management: limit simultaneous loads so you may avoid a service upgrade, as explained in EV energy management systems.
What a Battery Project Involves
| Step | What happens |
|---|---|
| Bill review | We review your SCE plan, usage and any existing solar |
| Sizing | Battery capacity and backup loads are matched to your usage |
| Panel check | We confirm the panel can support the equipment; see panel upgrade costs |
| Permit | We pull and manage the permit for you; depending on your city we file with the right agency |
| Utility | Interconnection steps with SCE or your local utility are coordinated as required |
| Inspection | The city or county inspects before the system goes live |
Battery and solar installations must be done by a properly licensed contractor. Kilowire Electric holds CSLB license #1110475 (B, C-10), and installations carry our 1-year workmanship warranty. Incentive programs and tax credits change often, so check eligibility with the California Energy Commission and the IRS before you decide, and do not count on a program that you have not confirmed.
Frequently Asked Questions
Q1: What are SCE peak hours?
A1: On the common evening-peak TOU plans, peak pricing applies in the late afternoon and evening, roughly 4 pm to 9 pm. The exact hours depend on your plan, so check your bill or SCE’s website.
Q2: Does a battery lower my SCE bill?
A2: It can, mainly by letting you use stored solar during peak hours instead of buying grid power. The amount depends on your plan, usage and system size, and we confirm it in a written estimate.
Q3: Do I need a permit for a home battery?
A3: Yes. We pull and manage the permit for you; depending on your city we file with the right agency, and the work is inspected.
Q4: Can I schedule EV charging to avoid peak rates?
A4: Yes. Most EV chargers and smart panels can delay charging until off-peak hours automatically.
Q5: Are there incentives for home batteries?
A5: Programs and credits exist but change, and eligibility depends on your income, location and equipment. Confirm current details with the official program websites before relying on them.
Related Guides and Official Resources
- NEM 3.0 net billing and home batteries
- SPAN smart panel guide
- Solar and battery retrofit services
- Energy storage and smart panels
- Official source: California Public Utilities Commission
Talk to a Licensed Electrician
Call (626) 600-0818 or request a free estimate. A diagnostic visit is $99. We pull and manage the permit for you; depending on your city we file with the right agency.
Prices are for general reference. The price of each project is individual and depends on the building and the scope of work, and is confirmed after an estimate. Permit rules, fees, codes and utility requirements vary by city and change over time. Please confirm the details on the official website of your city's building department and your utility before starting work.
Written by the KiloWire Team. Kilowire Electric is a d/b/a of SKILL SEE SERVICES INC, CSLB License #1110475 (B, C-10), 6018 Washington Ave, Whittier, CA 90601.