Electricity price tomorrow in Northern CaliforniaMon 19 Oct
Tomorrow's hourly prices for Northern California (CAISO NP15 trading hub) are published. The cheapest hour is 12:00–13:00 (3.37 c/kWh) and the most expensive 07:00–08:00 (6.18 c/kWh). Tomorrow looks more expensive than today: average 4.79 c/kWh vs 4.26 c/kWh today.
Prices are wholesale day-ahead market prices (CAISO NP15 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 | 5.03 |
| 01:00–02:00 | 4.80 |
| 02:00–03:00 | 4.70 |
| 03:00–04:00 | 4.68 |
| 04:00–05:00 | 4.71 |
| 05:00–06:00 | 5.29 |
| 06:00–07:00 | 5.85 |
| 07:00–08:00 | 6.18 |
| 08:00–09:00 | 4.38 |
| 09:00–10:00 | 4.06 |
| 10:00–11:00 | 3.65 |
| 11:00–12:00 | 3.48 |
| 12:00–13:00 | 3.37 |
| 13:00–14:00 | 3.39 |
| 14:00–15:00 | 3.39 |
| 15:00–16:00 | 3.70 |
| 16:00–17:00 | 4.41 |
| 17:00–18:00 | 5.80 |
| 18:00–19:00 | 5.89 |
| 19:00–20:00 | 5.82 |
| 20:00–21:00 | 5.75 |
| 21:00–22:00 | 5.63 |
| 22:00–23:00 | 5.51 |
| 23:00–00:00 | 5.41 |
Cheapest day this week (estimate)
The lowest daily average in the outlook is Sun 25 Oct, about 3.93 c/kWh (estimate). Estimates can change; confirmed prices are only known once published.
| Day | Average | Status |
|---|---|---|
| Mon 19 Oct | 4.79 | published |
| Tue 20 Oct | 4.74 | estimate |
| Wed 21 Oct | 4.85 | estimate |
| Thu 22 Oct | 4.87 | estimate |
| Fri 23 Oct | 4.57 | estimate |
| Sat 24 Oct | 4.24 | estimate |
| Sun 25 Oct | 3.93 | estimate |
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.
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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 Northern 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 Northern California?
On Mon 19 Oct the cheapest hour is 12:00–13:00 at 3.37 c/kWh.
Is this the electricity rate on my bill?
Prices are wholesale day-ahead market prices (CAISO NP15 trading hub), not the retail rate on your electricity bill: delivery charges, taxes and your retail plan's margin are not included.