ERCOT Issues Conservation Appeal to Texans and Texas Businesses

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With extreme hot weather driving record power demand across Texas, the Electric Reliability Council of Texas (ERCOT) is issuing a Conservation Appeal, asking Texans and Texas businesses to voluntarily conserve electricity, Monday, July 11 between 2-8 p.m. ERCOT also issued a Watch for a projected reserve capacity shortage from 2-8 p.m. At this time, no system-wide outages are expected.

Conservation is a reliability tool ERCOT has deployed more than four dozen times since 2008 to successfully manage grid operations. This notification is issued when projected reserves may fall below 2300 MW for 30 minutes or more.

ERCOT encourages all electric customers to visit the Public Utility Commission’s (PUC) Power to Save or their electric provider’s websites to get important conservation tips. According to the PUC, ways to reduce electricity use during peak times include turning up your thermostat a degree or two, if comfortable, and postponing running major appliances or pool pumps during afternoon peak hours.

ERCOT continues to use all tools available to manage the grid effectively and reliably, including using reserve power and calling upon large electric customers who have volunteered to lower their energy use.

ERCOT emphasizes that the call for conservation is limited to the hours of 2-8 p.m.

Factors driving the need for this important action by customers:

  • Record high electric demand. The heat wave that has settled on Texas and much of the central United States is driving increased electric use. Other grid operators are operating under similar conservative operations programs as ERCOT due to the heatwave.
  • Low wind. While solar power is generally reaching near full generation capacity, wind generation is currently generating significantly less than what it historically generated in this time period. Current projections show wind generation coming in less than 10 percent of its capacity.

Under current projected scenarios, performance of the generation fleet Monday is:

Installed CapacityMonday (7/11) Tightest Hour (2-3 p.m.)Percentage of Installed Capacity Available at Tightest Hour
Dispatchable80,08367,91385%
Wind35,1622,6988%
Solar11,7879,55781%
Total forecasted demand is 79,671 MW.

How to track electricity demand

·         View daily peak demand forecast, current load, and available generation at http://www.ercot.com.

·         Follow ERCOT on Twitter (@ERCOT_ISO) and Facebook (Electric Reliability Council of Texas).

·         Sign up for the ERCOT mobile app (available for download at the Apple App Store and Google Play).

·         Subscribe to the EmergencyAlerts list on http://lists.ercot.com.

Consumer Assistance: Public Utility Commission of Texas Hotline – 1-888-782-8477


ERCOT, the Electric Reliability Council of Texas, 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 52,700+ miles of transmission lines and 1,030+ generation units, including PUNs. ERCOT also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for more than 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.

Contact

ERCOT External Affairs Team

media@ercot.com

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