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Peak Demand Information


Did you know?

Six hours of each year
30 minutes of each month
causes 46% of GCEA's wholesale power bill

It’s called a demand charge and it occurs 75% of the time within 2 hours after sunset. 


What are on-peak hours?

On-peak is defined as the hours during the day when electricity is most used and more expensive.

GCEA's on-peak hours occur from 5pm to 10pm Monday through Saturday.

- Occurs 1 hour after sunset on average

    – Morning peak occurs 1:20 after sunrise on average

- Within 2 hours after sunset 85% of the time

- On or within 3 days of an observed holiday 23% of the time


How to cut down on energy use during

on-peak hours:Three S Rule It isn't just about how much electricity you use- it's also about when you use it. Shift: Shift usage from on-peak to off-peak by using appliances and other devices before 5pm and after 10pm. Stagger: Stagger use of high power appliances by turning the appliances on at different times, so the total demand/load is lower then turning them all on at the same time. Save: Save by using items that use less power, such as a toaster instead of a traditional electric oven also reduces demand/load.

- Adjust your thermostat
   - Consider investing in a programmable thermostat
   - Program your thermostat to come on early enough to have your home warm by 5 pm

- Limit hot water use
   - Consider placing a timer on your water heater that will help shift energy load

- Use high-wattage appliances before or after the on-peak hours
   - Dryer​
   - Washer
   - Oven
      - Use a toaster oven instead
   - Stove top
   - use the delay on dishwasher

- use a crockpot to cook meals

- Consider doing laundry on Sunday when there is no peak time

What Drives Peak

- Weather variations during the month/year

- Coincidental usage patterns

   – Business hours

   – Sleep cycles

   – Programmable devices

- Special Events

- Tourism

- Presence/lack of incentives to influence consumer behavior

- Extent of consumer education/awareness 

By reducing your demand during peak hours along with other GCEA members, you can help us keep your electricity rates down long-term and reduce pollution in our environment.


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