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Normal Conditions

NORMAL CONDITIONS

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

ERCOT ENERGY EMERGENCY ALERTS  (EEAs)

What are EEAs?

ERCOT has a series of emergency procedures known as Energy Emergency Alerts (EEAs) that may be used when operating reserves drop below specified levels. These procedures are designed to protect the reliability of the electric system as a whole and prevent an uncontrolled system-wide outage.

View ERCOT’s EEA summary document for more information.

Conservation Alert

ERCOT may call upon consumers to conserve power if there is a reliability risk to the electric system. Conservation tips are available on the Public Utility Commission’s Power to Save Texas website, the ERCOT website and the ERCOT mobile app.

Conservation Critical; Risk of Rotating Outages — EEA 1

When operating reserves drop below 2,300 MW and are not expected to recover within 30 minutes, ERCOT can call on all available power supplies, including power from other grids, if available.

Conservation Critical; Risk of Rotating Outages — EEA 2

When operating reserves are less than 1,750 MW and are not expected to recover within 30 minutes, ERCOT can reduce demand on the system by interrupting power from large industrial customers who have contractually agreed to have their electricity turned off during an emergency. ERCOT can also use demand response resources that have been procured to address tight operating conditions.

Rotating Outages Likely; Conservation Critical — EEA 3

When operating reserves drop below 1,000 MW and are not expected to recover within 30 minutes, ERCOT will order transmission companies to reduce demand on the electric system.

This is typically done through rotating outages, which are controlled, temporary interruptions of electric service. This type of demand reduction is only used as a last resort to preserve the reliability of the electric system as a whole.

Want to receive EEA notifications?

To view or receive real-time notices of EEAs:

  • Download the ERCOT app available in the Apple App Store and Google Play.
  • Follow ERCOT on Twitter (@ERCOT_ISO) and Facebook (Electric Reliability Council of Texas).
  • Subscribe to EmergencyAlerts and News_Bulletins at http://lists.ercot.com