Selecting OnSite Generating Equipment

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- Selecting On-Site Generating Equipment -
Association of Energy EngineersSouthern
California ChapterMarch 9, 2006Lisa Marlo
Conley, Sales ManagerWestern US
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Solar Turbines
San Diego, California
VPSolarF(98)-002
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Solar Turbines

• Subsidiary of Caterpillar (since 1981)
• Based in San Diego (since 1927)
• Worlds Largest Manufacturer of Industrial Gas
  Turbine Engines (1-14 MW Range)
• Strong Knowledge and Experience inPower
  Generation
• Global Strength and Presence
• Strong Financial Position
• Winner of Malcolm Baldrige Award 1998

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Solar Turbines

• Markets- Power Generation- Oil and Gas Industry
• Worldwide Installation and Support Capabilities
• Dedicated Solely to Turbo-machinery Products and
  Customer Support

VPSolarH(98)-025
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CED Gas Turbine

• 1-14 MW output
• 29-35 simple-cycle efficiency
• 15 ppmv NOx with lean premix combustion

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Mercury 50 Gas Turbine

• 4.6 MW output
• 38.5 simple-cycle efficiency
• 5 ppmv NOx with ultra-lean premix combustion

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Mercury 50 Flow Path
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Solar Gas Turbine Products
SATURN?
CENTAUR?
MERCURY?
3 515 kWe 4 600 kWe
Centaur 40 Centaur 50
1 210 kWe
Saturn 20
4 600 kWe
Mercury 50
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Solars Packaging Facility
San Diego, California
VPSolarF(98)-004
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Gas Turbine Generator Set
VPIPG(98)-011
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Mercury Generator Set
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Gas Turbine Peaking Power

• 5.2 MW Output
• City of Douglas, Georgia
• Natural Gas Fuel

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Peak Power Characteristics

• Electrical Power
• No Thermal Load
• Limited Hours of Operation
• Simple, Low Cost Installation
• Environmental Considerations

121-080
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Taurus Mobile Power Unit5.2 MW

• Taurus 60 Generator Set Module (foreground)
• Power Control Module (back)

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Titan Mobile Power Unit14.2 MW

• Titan Generator Set Modules (left and right)
• Power Control Module (back)

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Easy to Permit Features

• SoLoNOx Combustion System
• 15 ppmv NOx .64 lb/MW-hr
• SCR System Available
• Sound Attenuated Package
• 87 dbA _at_ 3
• 76 dbA _at_ 50
• 64 dbA _at_ 200
• Low Profile Design
• Stack height lt 24
• No Concrete Foundations

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Footprint Comparison

• Taurus 60 Mobile Unit Features
• Smallest Footprint (1 798 sq ft)
• Highest Power Density

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Gas Turbine Peaking PowerMobile Peaking
VP36-092
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Gas Turbine CHP FacilityCF Braun
118-035
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CHP Characteristics

• Reliable Power Requirement
• Utilization of Thermal Energy
• Ratio of Thermal Energy to Electrical Energy gt
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• Ratio of Electrical Cost to Fuel Cost gt 21
• High Operating Hours
• Environmental Considerations

121-080
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Typical CHP System
Exhaust Silencer
Exhaust Bypass Silencer
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CHP Installation with Centaur 40

• Childrens Hospital and Health Center, San Diego,
  CA
• CHP Application
• Developed by Cinergy Solutions
• Operational late 2004

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Childrens Hospital

• ONE MILLION DOLLARS FOR THE KIDS

Current Cost of Energy 3300 kW of Power from
SDGE 3,380,000 23 mmBtu/hr of Hot Water
1,080,000   Cost of Cogeneration
System Fuel for Centaur 40S 2,160,300 Increas
ed Maintenance 115,800 Stand-by
Power from SDGE
0 Departing Load Charges
202,300 Capital Lease Payment
722,000   Net Cash Flow 1,259,600
121-080
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CHP Installation with Mercury 50

• VA Medical Center, San Diego, CA
• CHP Application
• Developed by Sempra Energy Solutions
• Operational late 2004

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San Diego VA Hospital

• BIG NOx CREDITS

OLD SATURN COGENERATION SYSTEM 800 kW of
Power Generation 6000 Lbs/Hr of Steam 30
Tons of NOx   NEW MERCURY COGENERATION
SYSTEM 4400 kW of Power Generation 12,000 Lbs/Hr
of Steam 5 Tons of NOx   EMISSION CREDITS 25
Tons of NOx _at_ 100,000 per ton 2,500,000
121-080
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Typical CHP System with Direct Absorption Chiller
Exhaust Stack
Diverter Valve and Stack
Indirect Fired Absorption Chiller
Gas Turbine/Generator
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CHP Installation with Mercury 50

• Qualcomm Building W, San Diego, CA
• CHP Application
• Walsh Engineers and AO Reed
• Operational early 2005

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Qualcomm

• CRITICAL POWER

  NEW MERCURY COGENERATION SYSTEM 8000 kW Total
Load 4000 kW Critical Load 4400 kW of Power
Generation _at_38.5 Efficiency 1200 tons of free
Chilling 5 Tons of NOx  
121-080
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Gas Turbine Combined Cycle UCSD
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Typical STAC System
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Combined Cycle Characteristics

• High Operating Hours
• Higher Electrical Efficiency than Peaking
• Varying Thermal Load
• Higher Complexity Than Cogeneration
• Flexibility With Electrical / Thermal Loading

121-080
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Combined Cycle Installation

• San Diego State University, San Diego, CA
• CHP in Combined Cycle Application
• University Mechanical
• Operational 2002

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San Diego State University

• CAMPUS GROWTH

OLD CENTAUR COGENERATION SYSTEM 3200 kW of
Power Generation 18,000 Lbs/Hr of
Steam Generation 38 Tons of NOx   NEW TWO TAURUS
COGENERATION SYSTEM 10,400 kW of Gas Turbine
Power Generation 50,000 Lbs/Hr of Steam Steam
Turbine to Balance Thermal/Electrical Loads 30
Tons of NOx   EMISSION CREDITS 8 Tons of NOx for
Other Uses
121-080
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Equipment Selection Criteria
118-029
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Recommendations
Selecting On-Site Generating Equipment

• Determine Electrical and Steam Load Profiles
• Consider Gas Turbines For Projects Over 3000 kW
• Gas Turbines Have Low Emission Profiles
• Manage Your Gas/Fuel upply Contracts
• Regulations Have a Major Impact on Equipment
  Selection

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