Entergy Transmission Planning Summit

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Entergy Transmission Planning Summit
John Zemanek Vice President, Transmission

New Orleans, LAJuly 8, 2004
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Planning Summit Background

• Entergys objective is to provide the
  transmission needs for ALL of our customers.
• Transmission planning is a big challenge
  considering the uncertainties in future system
  conditions
• Transmission Planning summit gives us an
  opportunity to share our process and plan with
  everyone
• Your inputs are very valuable and will help us
  make the planning process more efficient

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Financial Statistics Transmission
Over 2 Billion Spent in last five years !!
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BLACKOUT !!
Need of New Technology for Transmission Grid
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Application of New Technology in Entergy

• D-SMES (Distributed Superconducting Magnetic
  Energy Storage)
• Quickly releases real and reactive power to
  restore voltage
• Installed in Woodlands, TX area in 2000-2001
• High Voltage Line Reactor
• Allows higher loading on the system by
  redistributing flow on other lines
• Installed at Fairview substation to reduce the
  flow on Gypsy-Madisonville line by approximately
  20
• High Voltage Series Capacitors
• Allows greater flow on key transmission
  facilities by reducing line impedance
• Installed on China-Jacinto 230 kV line
• Will be installed in China-Porter 230 kV line in
  2005
• Static VAR Compensators (SVC)
• Provides dynamic VAR support to generator
  deficient areas
• Two 300 MVAR SVCs will be installed in New
  Orleans area and Western Region in 2005

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Application of New Technology in Entergy (Contd.)

• Wide Area Monitoring System (WAMS)
• Monitor the fast dynamic transient in power
  system associated with system frequency change
  and generation angle swing
• Strategically located at four different corners
  of the system so that all major events in the
  system can be captured by these monitors
• Hypersim (Digital TNA)
• Real time digital simulator running on a
  extremely fast computer network
• Enables in-depth analysis of three phase
  electromagnetic transients
• Installed in May 2004
• Under Voltage Load-shed Scheme (UVLS)
• Draw comparison to UFLS from 1965 NE Blackout
• Avoids cascading effects by isolating the problem
  area from rest of the system
• Three schemes installed in Entergy system
  (Western Region, New Orleans and Mississippi)
• Dynamic Line Rating Devices (DLR)
• Allows transmission operator to determine
  real-time facility rating depending upon ambient
  conditions
• Installed on Conway-Bagatelle 230 kV line in
  Southeast Louisiana
• System Operations Center (SOC) Automation
• Ability to handle increase in transmission
  schedules on transmission system.
• 3,500 schedules in 1996 (Pre 888 Order) 145,000
  schedules in 2003

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Some Quotes after the Northeast blackout..
A THIRD-WORLD GRID" "We're a superpower with a
third-world grid. We need a new grid," New
Mexico Gov. and former Energy Secretary Bill
Richardson
The power grid, as I think everybody knows, is a
complex machine that likely failed in complex
ways," said Department of Energy Secretary
Spencer Abraham, co-chairman of the task force.
Transmission grid has been called the biggest
machine in the world. When it works, this hugely
complex contraption is highly economic. But when
this monster machine malfunctions, the
consequences can be spectacular.