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Hybrid Electric Gas Turbine (EGT®)
Technology: Examples & Opportunities
2020 DOE Energy Storage Peer Review
Innovative Projects Panel
September 29, 2020
Dr. Craig R. Horne
Wellhead Electri
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LM6000 Hybrid-EGT® Plant
Copyright General Electric and Wellhead Power Solutions© 2020
Copyright © General Electric Company. 2
WELLHEAD ELECTRIC
SNAPSHOT
Wellhead Power Solutions© 2020
• California-based
• Privately held, 61 employees & > 500 MW assets
• Developer, owner, operator, builder of power generation & storage since 1985
• Utility experience – SDG&E, PNM, SCE (Hybrid), Ghana utility
• Own/operate/EPC all technologies:CHP, Solar, PV, LFG, Gas, Energy Storage
Result ➔ we experiment, invent, innovate
GE exec: “you let your team experiment with your plants”
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Copyright General Electric and Wellhead Power Solutions© 2020
OPTIMIZING THE GENERATION MIX WITH THERMAL HYBRIDS
Introducing thermal hybrids on their system allowed SCE to change how and when its other assets were dispatched• Saves 2 million gallons of water per year• Reduces starts by half, GHG and other emissions by as much as 60%
CUSTOMER Southern California Edison
CHALLENGEAddressing local grid reliability concerns
GE SOLUTION10MW / 4.3MWh BESS, integrated controls
APPLICATIONHybrid - Thermal (EGT) Spinning reserve
LOCATIONSouthern California (US)
STATUSIn operation
This project consists of two 10 MW of battery energy storage systems, each paired with GE’s proven 50 MW LM6000 aeroderivativegas turbines, capable of providing instantaneous response during a spinning reserve event.
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2017
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THERMAL HYBRID: Simple Cycle, Generator Configuration
CAPABILITIES (FULLY AUTOMATED POWER PLANT IN HYBRID MODE)
• Pmin = 0.00 MW• Pmax = GT Pmax (47.00 to 49.90 MW)• Commitment time = 0.00 minutes• GT start/stop managed by the Hybrid Control System (HCS)
• GT stop can be delayed during high market volatility • Used to manage air permit start limits
• Minimum Down Time = 0.00 minutes• Minimum Up Time = 0.00 minutes• Battery SOC managed by the HCS• Precise Net MW Control • Smart Water Control (allows for full GT turndown and longer hot section life)• ISO AGC Control (25 to 30 MW of high-quality regulation)• Automated response to grid events• Primary Frequency Response
• Will start GT only if required• Voltage Regulation• Adjustable Trickle Charge to maintain battery SOC when GT is not running• Peak Mode allows for battery output on top of GT
Copyright General Electric and Wellhead Power Solutions© 2020
TYPICAL PROFILE
Spinning reserve
Regulation
Frequency response
Load following
Voltage support
USE CASES / APPLICATIONS
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THERMAL HYBRID: Simple Cycle, Non-Generator (NGR) Configuration
CAPABILITIES
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EXAMPLE PROFILE
All attributes of generator configuration plus:• Charge from grid or gas • Grid sees one large battery without SOC
constraints• Single bid set drives natural outcome• Gas is only used if power or energy range
beyond battery is required• 1-hour minimum battery • Ideal for load following, regulation and
operating reserves• Example Use Case 150MW Hybrid NGR:• 150 MW of load following or• 100 MW of load following, or Regulation,
AND 50 MW of spinning reserve without burning fuel
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Contacts Craig R. Horne, Ph.D.(415) [email protected]
Turner Scholl(916) [email protected]
Grant McDaniel(530) [email protected]
Jim Prochaska(713) [email protected]
