GE Vernova and ESB to modernize Dublin Bay power plant to help boost efficiency and grid reliability

DUBLIN, IRELAND (September 8, 2025) - Electricity Supply Board (ESB) of Ireland and GE Vernova (NYSE: GEV) have announced a major life extension and modernization project for the Dublin Bay power plant, aimed at enhancing performance, reliability, increasing output, and supporting Ireland's energy transition goals in line with ESB's Net Zero by 2040 carbon emissions strategy.

Under a new contractual service agreement, GE Vernova will implement its GT26 High Efficiency (HE) upgrade along with its SEMIPOL^TM technology for Static Excitation Equipment (SEE) and Startup Frequency Converter (SFC). This life extension project is expected to be completed in 2026.

Commissioned in 2002, the Dublin Bay facility currently generates up to 415 Megawatts (MW) using a single -shaft GT26 gas turbine.

The major life extension project is expected to deliver:

· Up to 30 MW of additional power, which is the power needed to supply the equivalent of approximately approximately 30,000 Irish homes annually

· Efficiency gains of up to 1.8% at baseload, leading to 5% carbon dioxide (CO2) reduction

· Improved grid stability through advanced excitation and frequency conversion systems

· Lower carbon intensity, supporting ESB's decarbonization strategy and enabling future use of hydrogen fuel blends.

"Although Dublin Bay is already one of our most efficient plants, we saw an opportunity in having an even more important role in delivering our Net Zero carbon emissions strategy by further enhancing its performance, reliability and sustainability." said Arkadiusz Galant, Dublin Stations Manager, ESB. "Our life extension project in 2026 will help us to deliver more power allowing us to provide electricity for Irish households over the next decade while being more efficient with lower emissions and enabling possible future hydrogen blends."

"This project builds on our long-standing partnership with ESB," said Joseph Anis, President and CEO of GE Vernova's Gas Power business in Europe, Middle East, and Africa "The GT26 HE upgrade and SEMIPOL™ technologies will not only increase output and efficiency

but also provide the flexibility and reliability needed to support Ireland's evolving energy landscape."

About the GT26 HE Upgrade

Introduced in 2019 to support the utilization and competitiveness of the GT26 gas turbine, this upgrade integrates advanced technology from GE Vernova's F and H class fleets, including additive manufactured parts and innovations in aerodynamics, materials and combustion. The performance improvement that the HE solution can deliver is attributable to technology breakthroughs across every major component of the GT26 gas turbine - turbine, compressor and combustor - that helps decrease fuel costs while increasing full-load output and extend maintenance intervals.

Located mostly in Europe, Middle East, Latin America and Asia, the GT26 gas turbine fleet of more than 100 units delivers an approximate total of 37 gigawatt of power capacity and can combust up to 40 percent of hydrogen with natural gas.

About SEMIPOL™ Static Excitation and Startup frequency converter technology

The Power Conversion & Storage business works with customers in utilities and industries that benefit from power stability solutions. The combination of SEMIPOL™ SEE and SFC conversion systems are crucial for generator startups in gas power plants, synchronizing the generator on the grid, and managing the effects of grid power and frequency variation. This allows for smooth startups and helps to reduce mechanical stress, extend equipment life, and lower maintenance cost. It has an installed base of over 1,000 SEE & SFC systems.

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Notes to editors

Financial Editors: Please note this order was booked in the first quarter of 2025.

© 2025 GE Vernova and/or its affiliates. All rights reserved. GE and the GE Monogram are trademarks of General Electric Company used under trademark license.

To learn more on the upgrade: https://www.gevernova.com/gas-power/services/gas-turbines/gt26-service-solutions/high-efficiency?gecid=GT26HE_int_pr_ESB-GT26HE

Forward Looking Statements:

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"intend," "plan," "believe," "seek," "see," "will," "would," "estimate," "forecast," "target," "preliminary," or "range." Forward-looking statements by their nature address matters that are, to different degrees, uncertain, such as statements about planned and potential transactions, investments or projects and their expected results and the impacts of macroeconomic and market conditions and volatility on the Company's business operations, financial results and financial position and on the global supply chain and world economy.

About ESB:

ESB was established in 1927 as a statutory body under the Electricity (Supply) Act, 1927. With a holding of 97.1%, ESB is majority owned by the Irish Government. The remaining 2.9% is held by the trustees of an Employee Share Ownership Plan. As a strong, diversified utility, ESB operates across the electricity market, from generation through transmission and distribution, to supply of customers in addition to using our networks to carry fibre for telecommunications. ESB is the leading Irish utility with a regulated asset base of approximately €14 billion (comprising ESB Networks €11bn and NIE Networks €3bn), a 25% share of generation in the all-island market and retail businesses supplying electricity and gas to almost 1.9 million customer accounts throughout the island of Ireland and Great Britain. During the year ended 31 December 2024, ESB Group employed an average of 9,600 people. 

Visit esb.ie to learn more about ESB.   

For more information, contact:

Graham King
Press Officer & Digital Content Editor
[email protected]

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© 2025 GE Vernova and/or its affiliates. All rights reserved.
GE and the GE Monogram are trademarks of General Electric Company used under trademark license.