Electricity price tomorrow in Southern CaliforniaMon 19 Oct
Tomorrow's hourly prices for Southern California (CAISO SP15 trading hub) are published. The cheapest hour is 09:00–10:00 (2.62 c/kWh) and the most expensive 18:00–19:00 (5.74 c/kWh). Tomorrow looks more expensive than today: average 4.48 c/kWh vs 3.95 c/kWh today.
Prices are wholesale day-ahead market prices (CAISO SP15 trading hub), not the retail rate on your electricity bill: delivery charges, taxes and your retail plan's margin are not included. Times are local (America/Los_Angeles). Unit: c/kWh (US cents per kWh).
Tomorrow's hourly prices
| Hour | c/kWh |
|---|---|
| 00:00–01:00 | 5.24 |
| 01:00–02:00 | 4.98 |
| 02:00–03:00 | 4.87 |
| 03:00–04:00 | 4.81 |
| 04:00–05:00 | 4.75 |
| 05:00–06:00 | 5.34 |
| 06:00–07:00 | 5.69 |
| 07:00–08:00 | 5.55 |
| 08:00–09:00 | 3.12 |
| 09:00–10:00 | 2.62 |
| 10:00–11:00 | 2.69 |
| 11:00–12:00 | 2.76 |
| 12:00–13:00 | 2.79 |
| 13:00–14:00 | 2.84 |
| 14:00–15:00 | 3.02 |
| 15:00–16:00 | 2.83 |
| 16:00–17:00 | 3.70 |
| 17:00–18:00 | 5.73 |
| 18:00–19:00 | 5.74 |
| 19:00–20:00 | 5.70 |
| 20:00–21:00 | 5.70 |
| 21:00–22:00 | 5.71 |
| 22:00–23:00 | 5.66 |
| 23:00–00:00 | 5.62 |
When is electricity cheapest?
Wholesale prices move hour by hour, and the gap between the cheapest and most expensive hour of a day can be large. Most household plans do not follow these prices directly; if yours passes wholesale prices through, shifting flexible use – charging an EV, running the dishwasher or heating water – into the cheap hours means paying the lower price for that energy. Either way, the hub price shows when power on the grid is cheapest. Prices in other zones.
Get VoltCast on the App Store
Prices change every hour, and checking them every evening takes time. VoltCast shows tomorrow's prices as soon as they are out, picks the cheapest charging window and can notify you on your phone.
Get VoltCast on the App StoreFAQ
When are tomorrow's electricity prices for Southern California published?
Day-ahead prices are usually published around 13:30 local time on the day before. This page updates automatically.
What is the cheapest hour tomorrow in Southern California?
On Mon 19 Oct the cheapest hour is 09:00–10:00 at 2.62 c/kWh.
Is this the electricity rate on my bill?
Prices are wholesale day-ahead market prices (CAISO SP15 trading hub), not the retail rate on your electricity bill: delivery charges, taxes and your retail plan's margin are not included.