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SWEDE 2008 ERCOT Power Factor Compliance/Non-Compliance LOU WHITE, P.E. ERCOT Power Factor Compliance/Non-Compliance. kVA. kVAR. θ. kW. ERCOT Power Factor Compliance/Non-Compliance. Reduction in kVAR (lagging) Increase system power factor Decrease system current

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Swede 2008 ercot power factor compliance non compliance lou white p e
SWEDE 2008ERCOT Power FactorCompliance/Non-ComplianceLOU WHITE, P.E.


Ercot power factor compliance non compliance
ERCOT Power Factor Compliance/Non-Compliance

kVA

kVAR

θ

kW


Ercot power factor compliance non compliance1
ERCOT Power Factor Compliance/Non-Compliance

Reduction in kVAR (lagging)

  • Increase system power factor

  • Decrease system current

  • Increase system voltage

  • Decrease system kW losses

FY 2006-2010 TSIP


Ercot power factor compliance non compliance2
ERCOT Power Factor Compliance/Non-Compliance

  • Power Factor Improvement

    • CAPACITOR BANK ADDITIONS

    • FEEDER RECONFIGURATIONS

    • FEEDER RECONDUCTOR

    • FEEDER ADDITIONS

    • NEW SOURCE (SUBSTATION)

    • DISTRIBUTED GENERATION

(COST EFFECTIVE)


Ercot power factor compliance non compliance3
ERCOT Power Factor Compliance/Non-Compliance

Distribution Power Factor Improvement

  • Distribution System Advantages

    • Power Factor Improvement

    • Voltage Support

    • Conductor Load Reduction

    • kW Loss Reduction (= $$$)


Ercot power factor compliance non compliance4
ERCOT Power Factor Compliance/Non-Compliance

Distribution Power Factor Improvement

  • Transmission System Advantages

    • Defer Transmission System Improvement Projects

    • Greater Emergency Reactive Generation Margins

    • Better Economical Solution at Distribution Level

    • Established Minimum Standards for DSPs


Ercot power factor compliance non compliance5
ERCOT Power Factor Compliance/Non-Compliance

ERCOT VOLTAGE AND REACTIVE REQUIREMENTS AND COMPLIANCE MONITORING

TDSP REQUIREMENT

  • Sufficient static reactive power capability shall be installed by a DSP in

    substations and on the distribution voltage system to maintain at least a 0.97

    lagging power factor for the maximum net active power supplied from a

    substation transformer at its distribution voltage terminals to the distribution

    voltage system. For any substation transformer serving multiple DSPs, this

    power factor requirement shall be applied to each DSP individually for its

    portion of the total load served.

    ROS Reactive Standard 04-09-03 as approved.doc


Ercot power factor compliance non compliance6
ERCOT Power Factor Compliance/Non-Compliance

  • TRE Enforcement of Reactive Requirements

    • Initial Violation

      • Concern/Complaint ISO/RTO driven

      • Violation posted on TRE website

      • Letter of Violation sent to DSP and PUC

      • DSP to provide Plan to Correct Violation

    • Continued Violation

      • PUC Letter of Violation sent to DSP and/or Fine


Ercot power factor compliance non compliance7
ERCOT Power Factor Compliance/Non-Compliance

  • TRE Considerations for Compliance

    • History of Compliance

    • Future System Planning

    • Project Scheduling


Ercot power factor compliance non compliance8
ERCOT Power Factor Compliance/Non-Compliance

  • ERCOT Annual Load Data Request (ALDR)

    • LCRA currently files on behalf of 41 customers

    • Load Data includes delivery point kW & p.f. for:

      • Current Year Winter & Summer NCP

      • Future Years (1-6) Winter & Summer NCP

      • ERCOT Current Year Winter & Summer CP

      • ERCOT Current Year Coincident Minimum

    • Load Data is reflected to PWT high-side for use in ERCOT load flow cases


Ercot power factor compliance non compliance9
ERCOT Power Factor Compliance/Non-Compliance

ERCOT VOLTAGE AND REACTIVE REQUIREMENTS AND COMPLIANCE MONITORING

TDSP REQUIREMENT

  • Sufficient static reactive power capability shall be installed by a DSP in

    substations and on the distribution voltage system to maintain at least a 0.97

    lagging power factor for the maximum net active power supplied from a

    substation transformer at its distribution voltage terminals to the distribution

    voltage system. For any substation transformer serving multiple DSPs, this

    power factor requirement shall be applied to each DSP individually for its

    portion of the total load served.

    ROS Reactive Standard 04-09-03 as approved.doc


Ercot power factor compliance non compliance10
ERCOT Power Factor Compliance/Non-Compliance

Load Forecast

  • Performed annually

  • Includes historical kW and power factors


Ercot power factor compliance non compliance11
ERCOT Power Factor Compliance/Non-Compliance

  • Support Your Power Factor

    • Monitor Delivery Point Data

    • System Maintenance/Inspections


Ercot power factor compliance non compliance12
ERCOT Power Factor Compliance/Non-Compliance

Questions ?


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