Normal Conditions

Electricity demand and capacity are balanced. There is enough electric supply available to serve current demand on the grid. No special action by consumers is needed.

ERCOT ENERGY EMERGENCY ALERTS

What are Energy Emergency Alerts?

If unusually high electricity demand or an unexpected loss of large generation units causes operating reserves to drop below ERCOT’s target threshold, operators will begin a progressive series of emergency procedures -- Energy Emergency Alerts (EEA) -- to maintain system reliability.

Conservation Alert

ERCOT may call upon consumers to take steps to conserve power. Users can help by turning their thermostats up 2 degrees between 3 and 7 p.m. Additional conservation tips are available on the conservation page.

Power Watch: Conservation Needed — EEA 1

EEA 1 gives ERCOT operators authority to call on all available power supplies, including power from other grids, if available. Under current pilots, some demand response resources also are available at EEA 1.

Power Warning: Conservation Critical; Risk of Rotating Outages — EEA 2

If the situation does not improve, ERCOT escalates to a Power Warning, which allows operators to drop large commercial/industrial load resources that have entered contracts agreeing to be interrupted during an emergency.

Power Emergency: Rotating Outages in Progress; Conservation Critical — EEA 3

If the capacity shortage is not relieved using voluntary and contractual demand response, ERCOT moves to a Power Emergency and instructs utilities to reduce demand by dropping load through rotating outages to help prevent the risk of a statewide blackout.

Want to receive Energy Emergency Alerts notifications?

To view or receive real-time notices of Energy Emergency Alerts:

  • Visit Operation Messages on ERCOT.com.
  • Download the ERCOT Energy Saver App -- find it in the Apple store for Apple mobile devices and in Google Play for Android.
  • Follow @ERCOT_ISO on Twitter. May open new browser window
  • Like Electric Reliability Council of Texas (the utility) on Facebook. May open new browser window
  • Subscribe to EmergencyAlerts at http://lists.ercot.com. May open new browser window