7F Users Group

7F Users Group, Inc. has grown dramatically since its first meeting in Baltimore, November 19-20, 1991, attended by 14 O&M personnel from four companies. The only 7F engine in service at that time was Virginia Electric & Power Co’s Chesterfield 7. It had been integrated with an existing steamer and new heat-recovery steam generator to configure a 1 x 1 combined cycle.

Fast forward to today: The OEM has shipped to customers more than 1000 F-class gas turbines since Chesterfield 7 left the shop. the majority of these units are 7FAs.

7F Users Group Steering Committee

2022 Conference, Dallas, TX

Front Row, Left to Right: Tim Null, Dave Such, Terry Toland, Ed Maggio, Zach Wood, John Rogers
Back Row, Left to Right: Clinton Lafferty, Doug Leonard, Luis Barrera, Riz James, Justin McDonald

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2024 Chairman: Dave Such, Xcel Energy
2024 Vice-Chairman: Zach Wood, Duke Energy
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2024 STEERING COMMITTEE

Luis Barrera, Calpine
(34 units across 14 sites)
(28) 7FA.03 (21 flared and 13 unflared); (6) 7FA.04/AGPs
Committee member since 2014 (2018 Chairman)
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Sam Graham, Tenaska
(24 units across 6 sites)
(20) 7FA.03; (3) 7FA.04
Committee member, 2007-2018, 2022-Present (2011 & 2013 Chairman)
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Clinton Lafferty, TVA
(15 units across 5 sites)
(12) 7FA.04; (3) 7FA.05
Committee member since 2020
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Doug Leonard, ExxonMobil
(7 units across, 4 sites)
(5) 7FA.03, (2) 6FA
Committee member since 2020
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Justin McDonald, Southern Company Generation
(39 units across 10 sites)
(28) 7FA.o4; (11) 7FA.03
Committee member since 2013 (2022 Chairman)
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Dan McQuade, Vistra Corporation
(?? units across ?? sites)
Committee member since 2023
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Brian Richardson, FPL
(?? units across ?? sites)
Committee member since 2022
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Edwin Rivera Hernandez, Dominion Energy
(19 units across 6 sites)
(2) 7FA.01; (9) 7FA.03; (8) 7FA.04
Committee member since 2023
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John Rogers, SRP
(16 units across 3 sites)
(16) 7FA.03
Committee member since 2019 (2023 Chairman)
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Dave Such, Xcel Energy (2024 Chair)
(15 units across 7 sites)
(1) 7FA.01; (1) 7FA.02; (10) 7FA.03; (3) 7FA.05
Committee member, 2006-2019; 2022 – Present
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Zach Wood, Duke Energy (2024 Vice-Chair)
(25 units across 8 Sites)
(3) 7FA.02; (12) 7FA.03; (8) 7FA.04; (2) 7FB SynGas
Committee member since 2020
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7F Users Group – Founders:
Bill Wimperis – Constellation Energy
Pierre Bohler
Larry Rose

Past 7F Committee Members:
Don Barnett
Tom Berry
Carine Bullock
Richard Clark, (2010 & 2014 Chairman)
Ben Cowart
Matt Dineen, 2016 – 2021 (2020 Chairman)
Carey Frost
Ed Fuselier, 2005 – 2019 (2009 Chairman)
Dan Giel
William (Jeff) Gillis, 2007-2020
Bryan Graham, 2014 – 2022 (2019 Chairman)
Ken Gross
Art Hamilton
Jim Harbaugh
Bob Holm
Joel Holt
Kaitlyn Honey, 2017-2022
Tricia Keegan, 2017-2019
Bill Kessler
Rizwan James (2021-2023)
Robert LaRoche, 2013-2019 (2015 Chairman)
Ed Maggio, 2013-2023 (2016 Chairman)
Peter Margliotti, 2014-2020
Robert Mayfield
Marshall McDuffie
Ben Meissner, (2012 Chairman)
Dave Merkley
Timothy Null, 2019-2023
Clift Pompee (2017 Chairman)
Jim Sellers
Peter So, 1999-2019
Chuck Spanos, ?? – 2021
Jennifer Stenger
Eugene Szpynda, 2008-2019
Larry Swan
Terry Toland, 2020-2022
Scott Trantham
Miles Valentine
KK Venkataraman, 2019-2019
Christa Warren, 2016-2021 (2021 Chairman)
Paul White (2008 Chairman)
Paul Whitlock

Mission Statement of the GE7FA Users Group

7F Users Group, Inc. is organized to provide an open forum through conferences and technological aids to the Owners/Operators of 7F Combustion Turbine generator systems for effective communication, discussion, and information dissemination regarding the operation, maintenance, inspection, troubleshooting, and repair of such systems to maximize equipment performance and reliability. These purposes will be achieved through providing an opportunity at meetings, conferences, company email, and website for the open exchange of ideas between owner / operators and owner / operators with vendors.

This site is managed by Users for Users!

2024 ANNUAL CONFERENCE

May 20-24, 2024

Marriott St. Louis Grand
800 Washington Ave
St. Louis, MO 63101

Open Conference Details