7F Users Group – Combined Cycle Journal

7F Users Group

7FUG24: Frustration mounts as users take more control over their machines’ destinies

Relative to what was presented at previous meetings, the matrix of issues facing users expanded and the sentiments about the OEM didn’t get any kinder at the 2024 7F Users Group Conference, held in St. Louis, MO, May 20-24. Those wishing a refresh on earlier conference summaries can refer to CCJ, No. 78 (2023) and […]

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7F Users Group: 35 years serving 7F owners and operators

The 2025 7F Users Group Annual Conference brings together the largest gathering of 7F gas turbine owner/operators in the world. This year’s event promises a comprehensive and collaborative forum focused on technical knowledge-sharing, hands-on solutions, and the evolving role of the 7F fleet in the energy landscape. Access the latest official conference details at the

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From wear to repair: Managing exhaust-frame health

The exhaust frame faces several critical operational and maintenance challenges primarily because of cyclic, variable, and minimal load operations. No matter the turbine model, end users and solutions providers are reporting more frequent inspections and maintenance on this vulnerable equipment. Here, David Clarida of Integrity Power Solutions (IPS) reviews his recent experience at a Texas

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WATER TREATMENT: Faribault’s 14 years of performance, financial success

By Shawn Flake, NAES Corp, and Stacy Willis and Dave Gebhard, Veolia Water Technologies and Solutions Faribault Energy Park, a 300-MW gas-fired combined-cycle facility located in southern Minnesota, represents a significant investment in sustainable energy infrastructure. Owned by the Minnesota Municipal Power Agency (MMPA) and operated by NAES Corp, the plant was commissioned in 2007.

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TBC DURABILITY, PART I: Effect of hydrogen combustion on thermal barrier coatings

Decarbonization of the electric power industry will increase the use of hydrogen as a gas-turbine (GT) fuel—alone or in combination with natural gas. Issues for hot-section components when burning hydrogen include the following: increased flame speed, temperature, quenching distance, steam in combustion products (from 12% to 21%), and loading. The resulting increase in erosion and

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2024 PSM ASSET MANAGERS CONFERENCE: Celebrating 25 Years of Innovation

Origin story sets the trajectory towards user-focused solutions Psychologists tell us that our personalities are largely established early in life. Some even argue that by the time you turn seven, how you behave is pretty much set for life. In other words, your origin story is really, really important. Think about that as you read

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EUROPEAN TECHNOLOGY DEVELOPMENT: MIMA-3 conference targets sustainable power

By Steven C Stultz, Consulting Editor The third conference on Materials, Inspection, Monitoring, and Assessment (MIMA-3), conducted by UK-based European Technology Development Ltd (ETD) last October (2023), in London, focused on sustainable power generation. Discussions and presentations addressed challenges associated with fossil and nuclear power generation, low- or no-carbon fuels, and renewables technologies. Highlights of

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Groome positioned for growth, acquires W-S Companies

Groome Industrial Service Group, a recognized leader in specialty maintenance services across a broad range of industrial markets, is always working toward one goal: Provide top notch turnkey industrial services to every one of its clients, anywhere in the country. Groome took a huge step towards that goal when it recently announced the acquisition of

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Simple solution removes varnish, increases turbine efficiency

Tackle varnish and improve turbine efficiency with Shell EcoSafe Revive Shell EcoSafe Revive is a solvency enhancer fluid that can be incorporated into most turbine oils to reduce the issues associated with varnish formation and fluid instability. Adding the recommended amount of Shell EcoSafe Revive requires no conversion process and reduces reliance on expensive varnish

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HERMISTON GENERATING PLANT, UNIT 2: Successful complete CCGT major outage with OOEM

Mechanical Dynamics & Analysis (MD&A) recently completed the major inspection and refurbishment of a 1 × 1 combined cycle at the Hermiston Generating Plant that successfully returned the facility’s turbines and generators to full and reliable operation. The project began with the full major inspection of a late-1990s-vintage, 170-MW 7FA gas turbine—including the robotic inspection

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