Market Information System Grid and Market Conditions

News Release

September 15, 2008

Hurricane Ike: ERCOT Grid Condition, Update 2

Forced outages due to Hurricane Ike as of 8 am Sept. 15: 

Customer outages
CenterPoint                               1.6 million
ONCOR                                           58,000
Texas New Mexico Power               70,000
San Bernard Electric Cooperative*   2,409 

TOTAL                                      1,730,409     

Transmission forced outages
345 kV-lines       1
138 kV-lines       69
69 kV-lines         30

Total high-voltage lines  100

Generation outages
2,585 MW total
  – 11 plants (30 generating units)
  – Includes 690 MW utility generation and 1,895 MW of private generation (process/refinery generation)

*Note: This is a correction.  It was previously listed as LCRA (Lower Colorado River Authority) but should be SBEC. 

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.