San Diego Gas & Electric is offering customer discounts if you reduce your energy use.
If you cut back your energy use between 4 and 9 p.m., you'll receive a $2 credit for each kilowatt hour of saved electricity and no penalty if you're unable to reduce energy use.
When you enroll in the 'Power Saver Rewards Program,' you will get a warning the day before so you can plan accordingly.
The utility company hopes to help ease pressure on the days when the state power grid is hit by high demand.
The program is voluntary and free to join, by submitting this application.