No matter how your plant operates, GE’s GT26 HE upgrade helps achieve increased baseload efficiency, greater plant output, and lower CO2 emissions. The upgrade can be tailored to help you get the most value out of your investment.
Our experience doesn’t stop with the gas turbine upgrade. GE’s experts can analyze the rest of your equipment to spot potential issues and determine how the upgrade might have an impact on other areas of your plant.
2%+ CC base load efficiency improvement
Up to 1% CC part load efficiency improvement
32,000 hours maintenance interval
Up to 25 MW output increase
5% CO2 reduction
* Data as of June, 2023
The HE upgrade was fully validated in 2021 with 6 units installed and operating commercially. The fleet leader reached B inspection in 2023, and in total, the fleet has more than 47,000 WOH (weighted operating hours) and about 438 starts with the upgrade.
GE bases most gas turbine maintenance requirements on independent counts of starts and hours. Whichever criteria limit is first reached determines the maintenance interval. A graphical display of GE’s “Box Concept” approach is shown here. The inspection interval recommendation is defined by the rectangle established by the starts and hours criteria. Using this Box concept, a GT26 HE unit should run 32k Weighted Operating Hours (WOH) with no maintenance factor. If operated into the “corner” of the box, the unit can achieve 44k equivalent EOH (+16k EOH vs GT26 Rating 2006 interval).
The HE upgrade can be added to any GT26 gas turbine, and the GE team will tailor the upgrade to create a balance between cost and value. The first step is a comprehensive plant feasibility study to identify any plant requirements, which includes an analysis of all your plant assets—HRSG, generator, transformer, and OTC (once-through-cooler).
World’s first implementation of the GT26 HE upgrade
See how GE helped Uniper deliver cleaner, more efficient power from its Enfield power plant in the UK
Teaming up for outage excellence in the UK
Get a behind the scenes look at the collaboration between GE and Uniper on an outage that included the GT26 HE upgrade and shaft line services.
additional megawatts the plant expected to generate
tons of carbon reduced
"GE’s HE upgrade can help increase the output, efficiency, flexibility, lifespan, and availability of the two GT26 gas turbines installed at Coryton, while reducing fuel consumption and environmental impact. Additionally, these turbines are highly flexible and able to operate on a variety of fuels, including blends of hydrogen and natural gas, to offer InterGen pathways to reduce carbon emissions in the next decade."
CC base load efficiency improvement
Uniper’s Enfield power plant needed a solution that could increase lifecycle value and utilization of the power generating equipment, while moving towards decarbonizing the gas power plant by reducing CO2 emissions per MW. GE’s GT26 HE upgrade is enabling reliable operations that generate more energy per unit with lower carbon emissions—while also improving the plant’s performance by increasing its flexibility, efficiency and output and extend the inspection intervals of the unit.