Onsite – Combined Cycle Journal

7F Users Group: 2026 conference focuses on fleet reliability, outages, and controls

The 2026 7F Users Group Annual Conference is scheduled for May 18-22 at The Woodlands Waterway Marriott Hotel & Convention Center in The Woodlands, Tex. The agenda combines offsite shop tours, vendor solutions presentations, user-only technical sessions, and GE Vernova sessions addressing outage execution, controls modernization, casing condition, TILs, and RCAs. 2026 steering committee Chair: […]

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7FUG 2025: First-time users reap a wealth of experience from veterans

Among the portfolio of conferences under the umbrella of Power Users, the 2025 7F Users Conference certainly vies for the one with the most content shared directly from owner/operator (O/O) organization representatives. Which makes it especially valuable for the ~50% of attendees who were first timers. One key take-home tidbit: Most, if not all, of

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7FUG 2025: Aftermarket suppliers target fleet life extension

The 7F Users Group’s 2025 vendor and solutions-provider program highlighted how much of the reliability discussion now extends beyond the gas turbine itself. Presentations covered rotor life extension, compressor stator-vane looseness, generator inspection and hydrogen-purge safety, controls calibration, intake filtration, lube-oil varnish, leak detection, coupling-bolt replacement, and owner’s-engineer support. Together, the sessions gave users a

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Legacy users compare notes on cycling duty, exhaust distress, and repair strategy

Users compare notes The 2025 Legacy Turbine Users Group, consisting of tracks for the GEV 7E, 6B, and 5 fleets, in Minneapolis again demonstrated why user-group meetings still matter for mature fleets. LTUG is not where owner/operators go to hear that legacy machines are old. Everyone in the room already knows that. They go to

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PACESETTER PLANT: Converted M501GAC reaches 50% H2 blend at Plant McDonough-Atkinson

By Jeff Porubcan, in conjunction with representatives from Mitsubishi Power, EPRI, and Georgia Power Editor’s note: Hydrogen has moved past white-paper status and onto utility hardware. At Plant McDonough-Atkinson, Southern Company and its partners pushed a converted M501GAC gas turbine to hydrogen blend levels and flow rates that matter to combined-cycle operators, not just lab

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PACESETTER PLANT: Quantum Energía uses Altamira V outage to reset plant reliability

Quantum Energía emerged as a major player in Mexico’s power sector after Mexico Infrastructure Partners along with Federal Government and Mexico’s pension funds acquired Iberdrola’s 13-plant portfolio in 2024. The company now manages about 8.5 GW of generation, nearly all modern combined-cycle capacity. At Altamira V, a 2025 major outage on Block 2 shows how

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Maximizing the lifespan of CO catalyst: What operators should check before ordering replacement

For many gas-turbine users, CO-catalyst trouble shows up first as a compliance headache: stack CO starts climbing at low load, differential pressure changes, and the plant is forced to decide whether it is looking at a cleaning issue, a system issue, or end-of-life catalyst. That decision now carries more economic weight than it did a

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HV ELECTRICAL: Closing the inspection gap on switchyard high-voltage assets

Tip: Implement a structured visual inspection program for switchyard high-voltage equipment between scheduled maintenance intervals, supported by periodic thermal and acoustic diagnostics, to catch early indicators before they become forced outages. Bryan Miller of RATTLIR LLC recently called CCJ editorial offices to flag something he keeps seeing at gas turbine sites: a significant gap between

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Hanwha Power and the new value of the installed fleet

The recent rebranding of Power Systems Manufacturing LLC (PSM) to Hanwha Power is not a cosmetic move. It is a signal that the gas-turbine aftermarket has become strategic again, and an aggressive growth plan paired with innovative engineering is needed to keep up with unprecedented demand. At January’s PSM Asset Managers Conference, a few months

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