Everllence PrimeServ Enters Long-Term Service Agreement at Finnish Power Plant

Everllence PrimeServ recently signed a long-term service agreement (LTSA) with TVO to conduct the intermediate maintenance of emergency generator units and execute monthly performance tests at TVO’s Olkiluoto 3 nuclear power plant. The four-year LTSA covers dismantling, cleaning, reconditioning, parts replacement, and reassembly with a maximum completion time of 30 days per unit.

“The success of this contract is based on the coordination and responsiveness of the Everllence teams, who are capable of combining technical expertise, rigorous planning, and execution in demanding conditions,” said Laurent Cado, PrimeServ Sales Manager, Everllence France. “For TVO, this guarantees a reliable and committed partner capable of ensuring the availability of its strategic equipment.”

Everllence PrimeServ will mobilize approximately 15 specialists on site, tackling major technical challenges in an environment that demands safety, quality, and meeting tight deadlines. Olkiluoto, one of the most iconic sites in the European nuclear program, recently entered operation and must meet significantly high reliability, safety, and security requirements, presenting equipment maintenance as a major challenge.

The Finnish power plant is equipped with four Pielstick 18 PA6 B engines as a backup power source, which must be maintained to the highest standards despite their low operational demands.

Hydrogen Propulsion

In late February 2026, Everllence upgraded a research-engine test bench at its Augsburg site to allow hydrogen combustion, representing a pivotal step toward the development of CO₂-neutral propulsion systems under the HydroPoLEn project. Dedicated hydrogen infrastructure is also established alongside the project in Augsburg, supporting current research and positioning the site as a key hub for developing future technologies.

The HydroPoLEn project is creating sustainable propulsion solutions for the maritime sector, addressing the immediate need for environmentally friendly technologies in global shipping. Currently, the project has designed and successfully validated a combustion process, mechanical components, and parts specifically for hydrogen-based propulsion. The newly developed combustion process allows a significant increase in power density under hydrogen operation.

Everllence is partnering with industry leaders and research institutes, including WTZ GmbH, NMA at the Technical University of Munich, Tenneco, and Carnival Maritime acting as associated partner. The project is funded by the German Federal Ministry for Economic Affairs and Energy within the framework of its Maritime Research Program. This development highlights a commitment to sustainability and greener propulsion systems in maritime applications.

Malaysian Power Plants

In December 2025, Everllence agreed to deliver 14 large-scale gas engines, totaling over 240 MW of combined output, to three new power-plant projects on Malaysian Borneo. Once operational, the plants will generate energy for a solar glass production facility and Malaysia’s national power grid. This significant order aligns with Malaysia’s initiative to achieve decarbonization and climate-neutrality by 2050, primarily leveraging hydropower and solar energy.

The power generation market is typically dominated by gas turbines, but engine-based power plants are gaining traction due to short response times and high efficiency at partial loads. Everllence’s gas engines, specifically the 18-cylinder 51/60DF, are designed to balance fluctuating renewable input for grid stabilization or continuous operation.