Onsite – Combined Cycle Journal

Protecting MK4, MK5 & EX2000 turbine controls from costly failures

If you’re managing MK4, MK5, or EX2000 platforms, this Technical Information Post (TIP) from AP4 Group demands your attention (Download here). These “classic” control systems rely on EEPROMs—and in the case of MK5 and EX2000, the U9 chip—to store essential software and configuration data. Failures of these components, increasingly common in systems over 25 years […]

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Six reasons to attend the 2025 Air-Cooled Condenser Users Group (ACCUG) Conference in Granbury, Texas

Each year, the Air-Cooled Condenser Users Group (ACCUG) brings together engineers, plant managers, OEM experts, and operations professionals to tackle the most pressing challenges facing air-cooled condenser (ACC) systems. In 2025, this highly anticipated gathering returns to Granbury, Texas—a fitting venue for an event dedicated to advancing power plant cooling technologies in water-constrained environments. With

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Hunterstown: Closing gaps in O&M knowledge through enhanced workforce development

Hunterstown Generating Station Owned by LS Power Asset management by Competitive Power Ventures Operated by NAES Corp 810 MW, 3 × 1 7F.04-powered combined cycle equipped with a GE D11 steam turbine, located in Gettysburg, Pa Plant manager: Mark Kadon Challenge. Anticipating industry-wide knowledge-gap challenges resulting from retirements and staff turnover, Hunterstown Generating Station saw

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River Road advances safety, efficiency, and reliability with practical onsite improvements

River Road Generating Plant Owned by Clark Public Utilities Operated by GE Vernova O&M 248 MW, gas-fired 1 × 1 7F.02-powered combined cycle (STAG configuration) equipped with a Foster Wheeler HRSG, GE A12 steam turbine, and GE 324 generator, located in Vancouver, Wash Plant manager: Robert Mash Safer handling of chemical totes Challenge. Gravity feeding

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Empire enhances safety, maintenance access, and workforce versatility through smart operational upgrades

Empire Generating LLC Owned by Empire Acquisitions LLC Operated by NAES Corp 635 MW, gas-fired 2 × 1 7F.03-powered combined cycle with Alstom HRSGs and a GE D11 steam turbine, located in Rensselaer, NY Plant manager: Chet Szymanski Cooling-tower mod improves maintenance access Challenge. Empire Generating’s cooling tower is designed with a dry section that

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Faribault: Protective-relay trip logs reduce errors

Faribault Energy Park Owned by Minnesota Municipal Power Agency (MMPA) Operated by NAES Corp 265 MW, 1 × 1 7F.03-powered combined cycle equipped with a GE A10 steam turbine and CMI HRSGs, located in Faribault, Minn Plant manager: Shawn Flake Challenge. Accurate and complete gathering of data during abnormal plant operations can be difficult and

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ACCUG: Global collaboration drives air-cooled condenser innovation

The 15th annual meeting of the Air-Cooled Condensers Users Group (ACCUG) was held at the University of East London (UK) July 23-25, 2024. Principal content categories were chemistry and corrosion, air-cooled condenser (ACC) design and performance, and system operation and maintenance. The event was chaired by Andy Howell, EPRI; Barry Dooley, Structural Integrity (UK); and

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St. Charles continually innovates in water monitoring, emissions control, and drone-driven inspections

CPV St. Charles Energy Center Owned by CPV Maryland LLC Operated by Consolidated Asset Management Services 745 MW, 2 × 1 7F.05-powered combined cycle equipped with a GE D11A steam turbine, located in Waldorf, Md Plant manager: Nick Bohl Influent water monitoring upgrade for permit compliance Challenge. St. Charles Energy Center uses recycled wastewater from

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Jackson Generation improves operations with digital P&ID access and proactive varnish mitigation

Jackson Generation Owned by J-Power USA Operated by NAES Corp 1200 MW, two 1 × 1 combined cycles powered by Mitsubishi 501 JAC gas turbines and SRT40AX steam turbines with HRSGs from John Cockerill, located in Elwood, Ill Plant manager: Scott Freese Share current drawings plant-wide to assist operations personnel Challenge. Plant personnel use many

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