San Diego Gas & Electric Co TOU-DR Mountain Baseline Region: Cheapest Hours and Peak Times

On TOU-DR Mountain Baseline Region, the summer weekday cheapest period runs 12 AM to 6 AM and 10 AM to 2 PM at 34.3 cents per kWh. Peak runs 4 PM to 9 PM at 45.8 cents per kWh. On weekends, the cheapest period runs 12 AM to 2 PM. Rate effective 2026-06-01 (June 1, 2026).

Cheapest summer price34.3¢/kWh

Summer peak price45.8¢/kWh

Summer spread11.4¢/kWh

Estimated EV value$480/year

24-hour schedule

When each price applies

Winter: January, February, March, April, May, November, December

On weekdays, the cheapest price is 33.1 cents per kWh during 12 AM to 6 AM and 10 AM to 2 PM. Peak is 50.3 cents per kWh from 4 PM to 9 PM.

061218

Peak: 50.3¢/kWhOff-peak: 42.2¢/kWhSuper off-peak: 33.1¢/kWh

Text data table

Hour starting	Price
0:00	33.096¢/kWh
1:00	33.096¢/kWh
2:00	33.096¢/kWh
3:00	33.096¢/kWh
4:00	33.096¢/kWh
5:00	33.096¢/kWh
6:00	42.164¢/kWh
7:00	42.164¢/kWh
8:00	42.164¢/kWh
9:00	42.164¢/kWh
10:00	33.096¢/kWh
11:00	33.096¢/kWh
12:00	33.096¢/kWh
13:00	33.096¢/kWh
14:00	42.164¢/kWh
15:00	42.164¢/kWh
16:00	50.329¢/kWh
17:00	50.329¢/kWh
18:00	50.329¢/kWh
19:00	50.329¢/kWh
20:00	50.329¢/kWh
21:00	42.164¢/kWh
22:00	42.164¢/kWh
23:00	42.164¢/kWh

Summer: June to October

On weekdays, the cheapest price is 34.3 cents per kWh during 12 AM to 6 AM and 10 AM to 2 PM. Peak is 45.8 cents per kWh from 4 PM to 9 PM.

061218

Peak: 45.8¢/kWhOff-peak: 39.9¢/kWhSuper off-peak: 34.3¢/kWh

Text data table

Hour starting	Price
0:00	34.333¢/kWh
1:00	34.333¢/kWh
2:00	34.333¢/kWh
3:00	34.333¢/kWh
4:00	34.333¢/kWh
5:00	34.333¢/kWh
6:00	39.883¢/kWh
7:00	39.883¢/kWh
8:00	39.883¢/kWh
9:00	39.883¢/kWh
10:00	34.333¢/kWh
11:00	34.333¢/kWh
12:00	34.333¢/kWh
13:00	34.333¢/kWh
14:00	39.883¢/kWh
15:00	39.883¢/kWh
16:00	45.771¢/kWh
17:00	45.771¢/kWh
18:00	45.771¢/kWh
19:00	45.771¢/kWh
20:00	45.771¢/kWh
21:00	39.883¢/kWh
22:00	39.883¢/kWh
23:00	39.883¢/kWh

Load shifting

What moving energy use could be worth

These estimates apply the published movable-energy assumptions to the weighted summer and winter price spread. They are not a bill forecast.

Flexible load	Movable energy	Estimated annual value
EV charging	3,240 kWh/year	$480
Heat pump water heater	1,440 kWh/year	$213
Dishwasher and laundry	480 kWh/year	$71
Home battery	3,285 kWh/year	$487
Space heating and cooling	480 kWh/year	$71

Adjust these assumptions

Plan notes and limitations

The fixed customer charge published in this URDB record is $0.79343 per day. Taxes, minimum bills, credits, eligibility rules, and some riders may change the amount on a real bill.

URDB rates are reviewed roughly annually. This record was last updated 2026-07-01 (July 1, 2026). Confirm the current tariff with San Diego Gas & Electric Co.

Source: OpenEI U.S. Utility Rate Database rate record (NREL / DOE).

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Frequently asked questions

When is TOU-DR Mountain Baseline Region cheapest?

On summer weekdays, the cheapest windows are 12 AM to 6 AM and 10 AM to 2 PM at 34.3 cents per kWh.

When is TOU-DR Mountain Baseline Region most expensive?

The summer peak window is 4 PM to 9 PM at 45.8 cents per kWh.

Are weekends different?

The summer weekend cheapest window is 12 AM to 2 PM. Check the hourly schedule for the exact period.

How current is this rate?

The OpenEI record is effective June 1, 2026 and was last updated July 1, 2026.

Should I confirm this with my utility?

Yes. Rate eligibility, taxes, riders, and holiday schedules may not be fully represented in URDB.