GE Vernova’s GT26 HE Upgrade Boosts Efficiency at Uniper’s Grain Power Station

GT26 HE Upgrade at Grain Power Station to Elevate Output and Efficiency

GE Vernova will upgrade three GT26 gas turbines at Uniper’s Grain power station in Kent, UK, starting in 2026. This strategic move aims to improve power output, efficiency, and emissions performance at one of Britain’s key combined cycle gas turbine (CCGT) facilities.

The GT26 HE upgrade aligns with Uniper’s broader decarbonization efforts, targeting a lower carbon footprint per megawatt produced. The same upgrade was successfully implemented at Uniper’s Enfield facility in 2021, demonstrating increased output and extended maintenance cycles.

The technology promises major performance gains: an additional 25MW per unit, a 1.8% efficiency boost at baseload, and significant fuel savings. Maintenance intervals will also increase to 32,000 hours, improving operational reliability.

GE Vernova’s Innovation in Gas Turbines Sets New Industry Standards

GE Vernova is leveraging its deep experience in turbine design and material science to modernize Uniper’s gas fleet. The GT26 HE upgrade uses advanced combustion technologies, 3D-printed parts, and engineering insights from the F- and H-Class fleets.

As of March 2025, the GT26 HE fleet has surpassed 100,000 operational hours across 15 units sold. Eight are already in service globally. This track record of success underscores the reliability and ROI for power generators like Uniper.

Joseph Anis, President & CEO of GE Vernova Gas Power EMEA, emphasized the long-standing partnership with Uniper. He noted that this upgrade will increase the Grain station’s reliability, output, and long-term viability in the UK energy market.

SuperMetalPrice Commentary:

Gas turbines remain vital in the energy transition, bridging renewables with grid stability. GE Vernova’s GT26 HE upgrade reflects how innovation in material science and thermal efficiency directly supports decarbonization goals. For metals and industrial commodities, turbine upgrades like this drive demand for high-performance alloys and additive manufacturing powders. As utilities modernize aging infrastructure, such investments signal strong tailwinds for advanced materials and energy tech suppliers.