ERCOT calls short supply alert

The Electric Reliability Council of Texas (ERCOT) issued a transmission emergency advisory and short supply alert Thursday as temperatures in much of the state continued to hover in the triple digits. ERCOT said the transmission advisory was issued to due to a south-to-north transmission constraint.


The Electric Reliability Council of Texas (ERCOT) issued a transmission emergency advisory and short supply alert Thursday as temperatures in much of the state continued to hover in the triple digits. No further details were available.

ERCOT also effectively declared a 'no-touch' day Thursday and ordered all electric generators and load entities to suspend switching activities and power plant maintenance, unless approved by the grid operator. ERCOT said the transmission advisory was issued to due to a south-to-north transmission constraint.

Electricity demand Wednesday hit a new peak of 55,994 Mw, up from an estimated 55,796 Mw peak in July. ERCOT, which was forecast to have a total net capacity of 61,705 Mw by August 2000, has already exceeded its forecast August peak of 55,319 Mw.

ERCOT�which by next summer will be operating as an independent system operator (ISO) under Texas's new deregulation law�called for utilities to shed voluntary interruptible load for 4 days in May and 1 day in July, according to Kent Saathoff, director of technical operations.

A TXU Corp. spokesman said the north Texas utility has no plans to call for load shedding by customers with interruptible load contracts Thursday. But during periods of such heavy demand "we are only one or two units from having to contact them," he said.

By this time in 2001, the area of Texas served by ERCOT will have about 66,000 Mw of total electric generating capacity, including 4,000-7,000 Mw of new generation, and a peak load of about 57,000 Mw, Saathoff has said.

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