CenterPoint Proposed Houston Area Constraint Mitigation Project Information Presentation to TAC
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Transcript of CenterPoint Proposed Houston Area Constraint Mitigation Project Information Presentation to TAC
![Page 1: CenterPoint Proposed Houston Area Constraint Mitigation Project Information Presentation to TAC](https://reader035.fdocuments.net/reader035/viewer/2022072014/56812cbd550346895d917699/html5/thumbnails/1.jpg)
CenterPoint Proposed
Houston Area Constraint Mitigation Project
Information Presentation to TAC
January 6, 2005
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Presentation is for informational purposes only.
No determination or support is requested at this time.
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Loss of STP to Dow double circuit:ckt 39 STP to WAP becomes the
limit with a 1413 MVA rating
X
South to Houston Thermal Constraint
Pre-contingency interface limit of approximately 2000 MW
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Loss of double circuit line Jewett to TH Wharton and Gibbons Creek to O’Brien:
ckt 74 Jewett to Tomball becomes the limit with a 956 MVA rating
X
North to Houston Thermal Constraint
Pre-contingency interface limit of approximately
2400 MW
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CenterPoint Study Goals
• Improve system reliability• Increase South to Houston transfer capability
– Thermal capability– Voltage stability
• Increase North to Houston transfer capability– Thermal capability– Voltage stability
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O’Brien
PHRWAP
STP
Brazos Valley
Oasis
Dow
Addicks
THW
Salem
Fayette Plant
Holman
Fayetteville
To
San
An t
o ni o
To White Point
Option 27 withAdditional 345 kV
Improvements
Hillje
Upgrade
New
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CenterPoint Cost Estimate
Option 27 Estimated Cost
Thermal Upgrades Estimated Cost
Dynamic Reactive Additions Estimated Cost
Total = $186 Million
$110 Million
$46 Million
$30 Million
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Study Calculated Transfer Capability Gains
• Option 27 increases transfer capability from the South zone to the Houston zone by 2800 MW, corresponds to a S-H interface flow of approximately 3850 MW (1050 MW increase)
• Option 27 increases transfer capability from the North zone to the Houston zone by 1000 MW, corresponds to a N-H interface flow of approximately 2900 MW (1900 MW increase)
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Status
• Has completed South Regional Planning Group (stakeholder) presentation and review.
• It is widely supported and no dissenting comments were received.
• ERCOT Staff independent analysis is currently underway (includes economic impacts).
• Many options are included as part of the review.
• Expect to bring to TAC and BOD by April