Power Rush Hour

Power Rush Hour occurs during the four-month period (June – September) that determines our transmission costs each year. Also known as 4CP, it’s the measure of PEC’s total energy demand when our statewide transmission system experiences the most overall demand — the four “peaks” — each summer. Peaks tend to occur on the hottest days of the month (one each in June, July, August and September), usually between the hours of 2 and 6 p.m. Learn more about peak events »

By working together to use less energy during Power Rush Hour, you and your fellow members can help reduce your transmission costs the following year.

This week’s forecast

According to the Lower Colorado River Authority forecast, there is medium potential for peak energy use this week.

4CP weekly forecastShift today, save tomorrow

The power to have a lower bill is in your hands. Thanks to our members’ efforts to reduce and shift their energy use last summer for just a few hours a day, we avoided $1.4 million in additional transmission costs this year. Let’s work together this summer for even more savings in 2019!

Image explaining power rush hour and how it works
Click or tap the image for a larger view.

What You Can Do

Tips to help you and your bill stay cool this summer.

Start saving »

What PEC is Doing

How our initiatives and programs are helping lighten the load.

How we’re helping »

What are Transmission Costs

Learn what they are, who determines them and where to find them on your bill.

Learn more »

Peak Events

What they are, and how to know they’re coming.

Stay informed »