Thomassen Energy Provides a Hydrogen Fuel-Flexible Retrofit Solution to Support Decarbonization of Uniper Gas Turbine Power Plant

RHEDEN, Netherlands (May 9, 2022) – Thomassen Energy will retrofit one of Uniper’s Rotterdam Capelle (RoCa) power plant’s gas turbines with their HyFlex LEC-III™ combustion system, capable of being operated with a variable blend of hydrogen (H2) and natural gas fuel. The RoCa power plant, located in the Zuid-Holland Province of The Netherlands, has a net electrical output of 264MW. It has two Frame 5 gas turbines commissioned in 1983 (RoCa 1 & 2) and one Frame 9E (RoCa3), manufactured by Thomassen, commissioned in 1996.

In 2023, Uniper is planning to switch the RoCa plant’s fuel source from Groningen natural gas to a high
caloric gas supply. To support their desired gas-fired power decarbonization objectives, Uniper
anticipates blending the new gas supply with upwards of 30% H2. When installed into the RoCa3 Frame
9E turbine in early 2023, Thomassen’s HyFlex LEC-III™ combustion retrofit system, developed jointly
with their sister company PSM, based in the US, will be capable of handling this enhanced fuel flexibility
requirement with ultra-low emissions when coupled with the delivery of their combustion AutoTune
digital solution.

Peter Stuttaford, CEO of Thomassen Energy: “Our H2 fuel-flex retrofit solution selected by Uniper for
RoCa3 has been operating successfully on three (3) Frame 9E turbines in the Netherlands at another customer location since 2018 with hydrogen (up to 35% H2 demonstrated) fuel blending. These projects
confirm our vision in supporting the power industry’s urgent net-zero carbon reduction requirements.
Having retrofit options for the installed fleet of gas turbines today, which will ultimately allow
operational flexibility with 0 – 100% H2, will provide clean, carbon free, firming capacity to balance the
inherent intermittency of grid-scale renewable generation.

Contacts for Journalists:

Thomassen Energy B.V.                                                                                      Power Systems Mfg., LLC (PSM)
Peter Stuttaford                                                                                                   Jeff Benoit
Chief Executive Officer                                                                                       VP - Clean Energy Solutions
T (+31) 62 292 9656                                                                                            T (+1) 561 262 5211
peter.stuttaford@thomassen.psm.com                                                        jeffrey.benoit@us.psm.com

About Thomassen Energy & PSM

Thomassen Energy and PSM are the leading high-technology aftermarket service providers for multi-
OEM platform gas turbine plants worldwide. Our mission is to support power asset customers with their
operational and maintenance power needs by providing flexible and reliable gas turbine products and
services to improve the total maintenance life cycle costs and to eliminate their carbon footprint with
advanced high hydrogen fuel flex combustion retrofit solutions.

For more information, visit: https://thomassen.energy or https://www.psm.com


This press release may contain forward-looking statements based on current assumptions and forecasts made by Thomassen Energy B.V. Management and other information currently available to Thomassen. Various known and unknown risks, uncertainties and other factors could lead to material differences between the actual future results, financial situation, development or performance of the company and the estimates given here. Thomassen Energy B.V. does not intend, and does not assume any liability whatsoever, to update these forward-looking statements or to modify them to conform with future events or developments.

Questions? Contact PSM
350+

Gas Turbine upgrades to date

230,000

CARS OFF THE ROAD =1
DECARBONIZED GAS TURBINE

100%

Hydrogen combustion target

1999

POWER SYSTEMS MFG., LLC founded