TOU-D-4-9PM-CPP
When does peak hit on Southern California Edison Co’s TOU-D-4-9PM-CPP? Peak hits 4pm–9pm every day, all year.
- peak140.48¢
- mid37.85¢
- off-peak36.79¢
What does TOU-D-4-9PM-CPP cost a year?
| Household | Uses | A month | Per year | Works out to |
|---|---|---|---|---|
| Apartment One or two people, no central air, no electric heat | 4,866 kWh | $285 | $3,416 | 70.2¢ / kWh |
| Family home Three or four people with central air conditioning | 9,453 kWh | $556 | $6,667 | 70.5¢ / kWh |
| Home with an EV Same house, plus an electric car charging overnight | 13,103 kWh | $676 | $8,113 | 61.9¢ / kWh |
Estimates, not quotes. We run three made-up but realistic households through this tariff hour by hour for a full year — including the way air conditioning loads the afternoon and an EV loads the small hours. Your own bill depends on when you actually use electricity, which is exactly the thing a per-kWh number hides.
What you actually pay
| Period | Rate | Applies when |
|---|---|---|
| peak | 140.48¢ | 4pm–9pm, June–September |
| mid | 133.41¢ | 4pm–9pm, October–May |
| mid | 129.08¢ | 4pm–9pm, June–September |
| mid | 40.50¢ | 9pm–8am, October–May |
| mid | 37.85¢ | 9pm–4pm, June–September |
| off-peak | 36.79¢ | 8am–4pm, October–May |
Plus a fixed charge of $0.031 per day — so longer months cost more before you use a single kWh.
Should you be on TOU-D-4-9PM-CPP?
This is a time-of-use plan, which means the clock decides your bill as much as the meter does. At the worst hour you pay 140.5¢ a kWh; at the best hour, 37.8¢ — 3.7× apart for identical electricity.
That gap is worth real money only if you can move load into it. Every kilowatt-hour a day you shift from 4pm to midnight is about $375 a year. A dishwasher run is roughly 1.5 kWh; an EV commute charge is 8 to 12. If your day is fixed — you are home in the evening and the air conditioner runs when it runs — a plan like this costs you more, not less.
Before a single kilowatt-hour moves, this plan charges $11 a year in fixed fees. On the apartment above that is 0% of the whole bill; on the house with a car charging in it, 0%. Fixed charges are invisible in a cents-per-kWh comparison and they punish small users hardest — if you use very little electricity, the headline rate is the least important number on this page.
Expect the bill to move with the calendar. The same family home costs about $785 in July and $417 in February — a $368 spread driven by heating and cooling far more than by anything you chose. Budget against the July figure, not the average, and a summer bill stops being a surprise.
How it compares to Southern California Edison’s other plans
Measured against the other residential plans this utility files, a family home lands 6th cheapest of 6. The cheapest option, TOU-D-PRIME, would run about $3,122 a year less.
Other Southern California Edison plans
Who can be on Southern California Edison’s TOU-D-4-9PM-CPP?
Eligibility is not our judgement — it is written into the tariff Southern California Edison filed. This is what that document says:
Available as an option to Customers eligible for service under Schedule D, D-CARE, and D-FERA. This Schedule is not available to Customers receiving service under Schedules DM, DMS-1, DMS-2, or DMS-3. Electric vehicle load that is separately metered under Schedule TOU-EV-1 is ineligible for service under this Schedule.
Shortened — the clause runs longer in the filing. Quoted from the filed tariff. Your utility decides eligibility, not us; check with them before you switch.
If this is new to you
- When is electricity cheapest? Off-peak hours explained
Overnight, usually. All weekend, often. The exact hours are in your tariff, not in a rule of thumb.
- Should you switch to a time-of-use electricity plan?
A wide peak-to-off-peak gap is a lever, not a saving. Levers need something to move.
- When should you charge an electric car at home?
The single biggest load most homes can move, and the easiest to automate.
- Why is my electric bill so high in summer?
Usually three causes at once, and only one of them is your air conditioner.
Where this comes from
- Effective
- 2024-06-01
the date this tariff took effect
- Covers
- delivery + supply
Delivery Service + Generation + New System Generation Charge + Nuclear Decommissioning Charge + Public Purpose Programs Charge + Conservation Incentive Adjustment + Wildlife Fund Non-bypassable Charge + PUC Reimbursement Fee + Department of Water Resources Refund
- Enrollment
- open to new customers