Advanced GTs – Combined Cycle Journal

Collaboration may not be a choice as screws tighten on CC plants

Advanced GTs, CCUG, Controls, Generator Users Group, HRSGs, STUG / By Team-CCJ

2025 POWER USERS COMBINED CONFERENCE RECAPS Combined Cycle Users Group Steam Turbine Users Group Generator Users Group Power Plant Controls Users Group Future electricity demand growth accelerates. Supply chain constraints intensify. Carbon emissions rules ease. Existing combined cycle (CC) major equipment from the last boom (1997-2003) closes in on original end-of-life dates. Construction of hyper-scale data […]

Collaboration may not be a choice as screws tighten on CC plants Read More »

Built megawatts are setting the pace for AI

Advanced GTs, CCUG / By Team-CCJ

By Peter Perri III The AI infrastructure market has stopped paying for promises. It is paying for completed megawatts, turbine positions, energized substations, interconnection rights, and the people who can put all of them together before the next model release. If you own or operate a gas-fired plant, that shift is no longer a side

Built megawatts are setting the pace for AI Read More »

Pump health audit sharpens outage planning

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, HRSGs, STUG / By Team-CCJ

Planned work outages are an exercise in efficiency and preparation. As global power demand continues to increase, plant operators are compelled to execute required maintenance within increasingly shorter outage windows. The pressure on already stretched labor resources and the strict O&M budgets compounds the challenge of outage planning. Getting better information on equipment health offers

Pump health audit sharpens outage planning Read More »

Turbine tips: White powder and blueish buckets

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Aeros, Alstom Owners Group, Best Practices, D5-D5A Users, Frame 6, V Users / By Team-CCJ

By David Such, Such Turbine Consulting LLC Editor’s Note: CCJ welcomes Dave Such as a regular contributor to Turbine Tips. Dave recently retired from Xcel Energy after a 40-year career focused on the operation and maintenance of GE 7F gas turbines. The Combined Cycle Users Group recognized his contributions to the industry with its Individual Achievement

Turbine tips: White powder and blueish buckets Read More »

Exhaust liner failures: Why small defects turn into forced outages

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Frame 6, HRSGs / By Team-CCJ

Ask Scott Schreeg of SVI Bremco what turns a manageable exhaust-liner repair into a forced outage and the answer gets specific fast: a failed stud weld, a loosened sheet, or a hotspot hidden behind the liner system. None looks catastrophic at first glance. But once exhaust flow starts working behind the liner, the problem can

Exhaust liner failures: Why small defects turn into forced outages Read More »

How GE Vernova’s Houston Learning Center drives plant performance

7EA Users Group, 7F Users Group, Advanced GTs, Aeros, Alstom Owners Group, Controls, Frame 6, Generators, HRSGs / By Team-CCJ

As the power industry evolves to meet growing demands for reliability, flexibility, and decarbonization, the success of any power plant depends on one constant: the expertise of the people who operate and maintain it. While advanced technology drives the energy transition, it is a skilled workforce that keeps critical assets running safely and efficiently. At

How GE Vernova’s Houston Learning Center drives plant performance Read More »

June 16 Webinar: Proactive Turbine Oil Maintenance and Varnish Control

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Best Practices, CCUG, Frame 6, STUG / By Team-CCJ

This joint educational webinar equips gas turbine operators and maintenance leaders with guidance and best practices for proactive turbine oil maintenance and varnish control, enabling high turbine availability, long‑term reliability, stable performance, and lower O&M cost. Eddie Rowland, CC Jensen’s clean‑oil expert, will outline modern oil‑management strategies, while Steve Malec, reliability expert at Duke Energy,

June 16 Webinar: Proactive Turbine Oil Maintenance and Varnish Control Read More »

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

Advanced GTs / By Team-CCJ

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

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

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

501 F&G Users Group, 7EA Users Group, 7F Users Group, Advanced GTs, Aeros, Alstom Owners Group, Best Practices, CCUG, Frame 6, HRSGs / By Team-CCJ

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

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

Stop compressor debris at the source with field-applied HVTS

Advanced GTs / By Team-CCJ

“Stop debris at its source, not after it forms,” cautions Eric Duvekot, VP of Engineering at Integrated Global Services (IGS), as he explains how field-applied high-velocity thermal spray (HVTS) addresses oxide flaking in the hot, high-pressure compressor sections of advanced-class gas turbines, and outlines proof points from OEM testing and fleet experience (Fig 1). The

Stop compressor debris at the source with field-applied HVTS Read More »