7F Users Group – Page 3 – Combined Cycle Journal

7F Users Group

AES Huntington and Alamitos realize value of process optimization

AES Huntington Beach Energy AES Alamitos Energy Owned by AES Southland Operated by AES Corp Each plant, rated a nominal 674 MW, is a 2 × 1 combined cycle powered by GE 7F.05 gas turbines and Siemens SST6-5000 steam turbine, located in Huntington Beach, Calif Plant manager: Weikko Wirta Challenge. Achieve world-class starting reliability. Solution. […]

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Faribault: Agility solution reduces steam turbine start time, rotor stress

Faribault Energy Park Owned by Minnesota Municipal Power Agency Operated by NAES Corp 265 MW, 1 × 1 7F-powered combined cycle equipped with a GE A10 steam turbine, located in Faribault, Minn Plant manager: Shawn Flake Challenge. Combined-cycle powerplants have changed their operating profiles to accommodate grid demands for flexible generation. Example: MISO territory has

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Plant Wansley: Know at a glance the gas in your generator cooling system

Plant Wansley CC Owned by Southern Company Operated by Southern Power 1073 MW, two 2 × 1 7F.04-powered combined cycles equipped with GE D11 steam turbines, located near Carrollton, Ga Plant manager: Mike Moro Challenge. During an outage, when the generator does not contain hydrogen, the control system didn’t have an obvious way of indicating

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7F Users Group 2023: User Presentations and Discussion

Seasoned owner/operator personnel tackle the biggest industry issues  The depth and breadth of experience represented by 11 owner/operator presentations at the 2023 7F Users Group Conference can be summed up like this: Chronologically, they represent machines dating back to the original F-class gas turbines (GT) off of the test stands in 1988. Numerically, these users

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WORK MANAGEMENT: A proven method for improving operational reliability

By Rishi Velkar and Todd Robison, NV Energy Combined-cycle plants built during the construction boom of the late 1990s/early 2000s are now about 70% through their 30-yr design lives. Although not originally designed to cycle, ever-increasing amounts of solar energy readily available on the grid, especially in the Southwest, make it economically prudent for these

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Webinar Series: Machine learning improves CCGT availability, capacity, and efficiency

Case studies on generation M&D, predictive analytics, capacity/fuel demand forecasting As a follow-on to its popular 2023 webinar series, Primex presents a new and improved series to help power plant managers understand machine-learning basics and learn how this rapidly evolving technology can improve power plant availability, capacity, and efficiency. Each webinar includes a 20-30 minute

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Non-OEM solutions providers talk generators, turbine upgrades, and more

As we prepare for the upcoming 7F Users Group annual conference in Atlanta, May 15-19, let’s take a look back at some of the most pertinent vendor presentations from last year, many of which will be updated and presented this year. Good to have some background details and foundational information of the non-OEM solutions for

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Rumford best practices cut O&M costs, reduce hot start duration

Rumford Power LLC Owned and operated by Cogentrix Energy Power Management 270 MW, gas-fired 1 × 1 7FA.03-powered combined cycle equipped with a Nooter Eriksen HRSG and a GE A10 steam turbine, located in Rumford, Me Plant manager: Justin Castagna Reduce O&M cost by cutting energy consumption when offline Challenge. The operational profile for Rumford

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