Market Information System Grid and Market Conditions

News Release

June 27, 2012

ERCOT peak demand surpasses new June record

AUSTIN, TX, June 27, 2012 -- The Electric Reliability Council of Texas (ERCOT), the grid operator for most of Texas, on Tuesday broke the new peak demand record it set Monday. Electric use during the 4-5 p.m. hour reached 66,548* megawatts (MW), also exceeding the standing record for July. ERCOT does not expect to break this new June record this week.

The previous record for June, set Monday, June 25, was 65,047 MW, well above the 63,102 MW record set on June 17, 2011. ERCOT’s all-time peak demand record occurred on Aug. 3, 2011, when electric use in the ERCOT region topped out at 68,305** MW. One MW is enough to power about 200 homes during peak demand periods, typically hot summer days like this one.

ERCOT will continue to use a variety of channels to keep the public informed throughout the summer. ERCOT Energy Saver, a new mobile app now available for Apple and Android devices, will provide real-time alerts when conservation is most critical in the ERCOT region. Users of the free app need to enable push notifications to receive these messages. ERCOT also will provide information through the news media, Facebook, Twitter and ERCOT’s new subscription-based EmergencyAlerts list (

Some steps everyone can take to reduce demand on the grid during these peak demand hours include the following:

  • Turn your thermostat up by two or three degrees in the late afternoon.
  • If you will be away from home throughout the day, turn your thermostat up before leaving home in the morning.
  • Set pool pumps to run late at night or early in the morning.
  • Avoid using large appliances, especially hot stoves and clothes dryers, during the peak.

For more conservation tips, download the ERCOT Energy Saver app or visit the Public Utility Commission of Texas website.

*Updated from 66,626 on Oct. 17, 2012, to reflect improved calculation of power flows on DC ties.

**Updated from 68,379 to reflect improved calculation of power flows on DC ties.

The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to more than 26 million Texas customers -- representing about 90 percent of the state’s electric load. As the independent system operator for the region, ERCOT schedules power on an electric grid that connects more than 46,500 miles of transmission lines and 710+ generation units. It also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for nearly 8 million premises in competitive choice areas.

ERCOT is a membership-based 501(c)(4) nonprofit corporation, governed by a board of directors and subject to oversight by the Public Utility Commission of Texas and the Texas Legislature. Its members include consumers, cooperatives, generators, power marketers, retail electric providers, investor-owned electric utilities, transmission and distribution providers and municipally owned electric utilities.