Kwinana Open Cycle Gasfired Power Station

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• Kwinana Open Cycle Gas-fired Power Station
• May 2008

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Perth Energy

• Well established SWIS retailer
• Active contributor promoter of electricity
  market reform
• Focus on innovation customer service
• Active in industrial commercial markets
• Preparing for full retail contestability
• Pioneer in direct delivery of renewable energy
• Strong shareholder backing

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New Generating Capacity

• Gas fired power station project proceeding
• Project approved by Minister in 2003
  (Ministerial No. 625), reconfirmed by EPA to be
  managed under Works Approval
• Stage 1 - 120MW open (simple) cycle gas turbine
  operating less than 1000hrs per year as a peaking
  plant
• Stage 2 - transition to 160MW combined cycle gas
  turbine running base-load

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Location

• 250m from Western Powers Mason Road substation
• Adjacent to the Dampier to Bunbury Natural Gas
  Pipeline compressor station No.10
• Close to the Parmelia gas pipeline
• 1.1km from the Water Corporations Kwinana
  Wastewater Recycling Facility

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Fast Start Dual Fuel GT Plant

• Fast starting to support renewables
• Two Pratt Whitney Swift-Pac FT8-3
  aero-derivative gas turbine packages
• Gas turbines based on the JT8-D jet engines -
  11,000 engines in service worldwide
• Dual fuel capability
• Diesel only used in supply emergencies
• lt 100 hrs/yr on ultra low sulphur (lt 10ppm)
  diesel

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Gas Fuel
Plant Configuration
Combustor
Tx
Turbine
Compressor
Generator 1
Electricity
Waste Heat
WPC Substation/Network
Steam Turbine
Air
Heat Recovery Steam Generator
Generator 2
Steam
Loads
Tx
Electricity
STAGE 2 combined cycle configuration.
Condenser
CT
Cooling Water System
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Key Benefits of the Project

• Support /Complement Renewable Energy plant
  during peak and shoulder demands.
• Increased reliability improved security of
  electricity supply.
• Assist in avoiding shortfalls in electricity
  supply during periods of peak demand.
• Chosen gas turbine plant has low environmental
  impact.

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Other Benefits

• When markets allow the plant can be converted to
  combined cycle operation
• Project is located near its main customers
  reducing line losses and resultant greenhouse gas
  benefits.
• Appropriate use of the States premier heavy
  industrial location, Kwinana.
• Capital investment of up to 98 million in the
  Kwinana region.
• Employment of up to 80 people during the
  construction phase.
• Permanent employment of up to five people for the
  operating power station and contingent management
  workforce.

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Air Quality

• NOX and SO2 emissions when operating on either
  gas or liquid fuel will fall within the National
  Environmental Protection (Ambient Air Quality)
  Measure requirements
• Water injection will be used to control NOX
• Ultra low sulphur (8-10ppm) diesel will be the
  only liquid fuel used

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Greenhouse Gas Emission Comparisons
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Noise Emissions

• Power station will operate within statutory
  limits
• Closest residential dwellings are in Medina and
  Hope Valley - 2.5km away
• Under worst downwind propagation the noise level
  at the nearest dwellings will not exceed the
  30dBA limit
• To achieve this some minor turbine exhaust
  attenuation will be required compared with the
  manufacturers standard offer

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• The End