Author Topic: ERCOT predicting potential power shortages Tuesday afternoon  (Read 358 times)

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Offline thackney

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ERCOT predicting potential power shortages Tuesday afternoon
« on: August 13, 2019, 02:30:37 PM »
ERCOT predicting potential power shortages Tuesday afternoon
https://www.chron.com/business/energy/article/ERCOT-predicting-reserve-capacity-power-shortage-14301122.php

Updated 12:57 pm CDT, Tuesday, August 13, 2019

The state's grid manager the Electric Reliability Council of Texas is projecting that power demand might outstrip supply Tuesday afternoon and has notified generators of a potential shortage.

The notice issued Tuesday morning serves as a nudge to generators to update their generation availability, said ERCOT spokeswoman Leslie Sopko. The notice does not trigger conservation efforts....
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Offline thackney

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Offline thackney

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #2 on: August 13, 2019, 02:39:16 PM »
To: Operations
Sent: Tue, Aug 13, 2019 02:48 PM
Subject: M-A081319-01 TCEQ Notice of Enforcement Discretion
NOTICE DATE:  August 13, 2019

NOTICE TYPE:  M-A081319-01 Operations

 

SHORT DESCRIPTION:  TCEQ Notice of Enforcement Discretion

INTENDED AUDIENCE:  QSEs with Resources and Resource Entities

DAY/S AFFECTED: August 13, 2019 until further notice

LONG DESCRIPTION:  The ERCOT Region continues to experience sustained state-wide record setting load. ERCOT expects significant high load for today’s afternoon peak due to continued high temperatures throughout the ERCOT Region.  These conditions make it more likely that the ERCOT Region will experience a power emergency.  The Texas Commission on Environmental Quality (TCEQ) has communicated to ERCOT that, effective immediately, TCEQ will use its enforcement discretion for generating facilities to assist during these extreme temperatures. To maximize generation requested by ERCOT, TCEQ will exercise its enforcement discretion for exceedances of emission and operational limits of power generating facilities for generators that exceed air permit limits.

Any generating facility that expects to exceed its air permit limits to assist during these extreme temperatures shall provide a notice of this action to Kelly Cook (kelly.cook@tceq.texas.gov), Director of Critical Infrastructure Division for TCEQ.  Unless TCEQ provides notice otherwise, the period of enforcement discretion will continue until ERCOT provides a Market Notice declaring that the enforcement discretion has ended....

http://www.ercot.com/services/comm/mkt_notices/archives/4252
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Offline Sanguine

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #3 on: August 13, 2019, 03:42:23 PM »
For maybe the only time, I'm glad I'm not on ERCOT.  Too darn hot to have the power out.
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Offline berdie

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #4 on: August 13, 2019, 04:04:55 PM »
The more our population increases...the more common this will be.

Offline Victoria33

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #5 on: August 13, 2019, 05:54:17 PM »
For maybe the only time, I'm glad I'm not on ERCOT.  Too darn hot to have the power out.
@Sanguine

ERCOT is not a generating power company - it manages the flow of power. (consider the rest in quotes):

"The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to more than 25 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 650+ generation units.

It also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for 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.
« Last Edit: August 13, 2019, 05:57:48 PM by Victoria33 »
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Offline Sanguine

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #6 on: August 13, 2019, 05:57:10 PM »
@Sanguine

ERCOT is not an independent power company (consider the rest in quotes):

"The Electric Reliability Council of Texas (ERCOT) manages the flow of electric power to more than 25 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 650+ generation units.

It also performs financial settlement for the competitive wholesale bulk-power market and administers retail switching for 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.

Yes, I'm on that 10% that ERCOT doesn't cover.
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Offline mrpotatohead

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #7 on: August 13, 2019, 06:40:59 PM »
Maybe the wind will blow....lololol.  Danged windmills...
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Online Elderberry

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #8 on: August 14, 2019, 07:41:28 AM »
Power demand, prices soar with temperatures
Houston Chronicle by L.M. Sixel Aug. 13, 2019

https://www.houstonchronicle.com/business/energy/article/Power-demand-prices-soar-with-temperatures-14302372.php

Quote
The heat wave blanketing Texas drove wholesale power prices to record levels Tuesday as triple-digit temperatures strained electricity supplies, spurred calls for energy conservation and drew the Texas power grid perilously close to rolling power outages.

Wholesale electricity prices in Houston soared to $9,000 per megawatt hour for more than an hour Tuesday afternoon and as high as $9,100 per megawatt hour in other parts of Texas, reflecting transmission congestion costs that allow prices to exceed the $9,000 statewide price cap. In comparison, prices were about $19 per megawatt hour at 8 a.m. Tuesday.

The surging wholesale prices are likely to lead to higher prices on retail electric bills for consumers and businesses in the future.

The state grid manager the Electric Reliability Council of Texas alerted power generators Tuesday afternoon that power reserves were in such short supply — dipping below 2,300 megawatts — that an emergency condition already existed or was imminent and called for conservation measures. The alert raised concerns whether Texas would have enough power to get through the hot afternoon or whether the state would have to resort to extreme measures such as rolling blackouts.

Houston’s heat index was 107 degrees Fahrenheit at 2 p.m. Tuesday, according to the National Weather Service. Power demand peaked at 74,181 megawatts, just slightly below Monday’s record of 74,531 megawatt.

More at link.
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Offline thackney

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #9 on: August 15, 2019, 12:57:28 PM »
Heat, high demand boost power prices to $1,750 a megawatt hour in Houston
https://www.chron.com/business/energy/article/Heat-high-demand-boost-power-prices-to-1-750-a-14305207.php?cmpid=ffcp
Thursday, August 15, 2019

Local wholesale electricity prices peaked at $1,750 per megawatt hour at 6 p.m. Wednesday afternoon as the heat continued to blanket the Houston area and the state's grid manager put generators on notice that reserves were dropping to uncomfortably low levels.

The prices -- while high -- were a relief compared to Tuesday when wholesale electricity prices in Houston soared to $9,000 per megawatt hour for more than an hour during the afternoon hours and as high as $9,100 per megawatt hour in other parts of Texas. In comparison, prices were $18 per megawatt hour at 8 a.m. Wednesday....

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Offline InHeavenThereIsNoBeer

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #10 on: August 15, 2019, 01:26:33 PM »
I'm curious, is that $9,000/MWhr for every one, or is that a marginal price for supply exceeding a certain level(s)?
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Offline thackney

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Re: ERCOT predicting potential power shortages Tuesday afternoon
« Reply #11 on: August 15, 2019, 02:52:08 PM »
I'm curious, is that $9,000/MWhr for every one, or is that a marginal price for supply exceeding a certain level(s)?

I'm believe that is the margin over previous commitments to meet the expected shortfall.
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