Take control of performance and asset lifecycle through retrofits

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Future-ready your vessel or power plant with our retrofit solutions

Decarbonization

Increase your vessel’s sustainability profile, save fuel oil, and support your decarbonization regulatory compliance.

Operational efficiency

Improve your efficiency and reliability by optimizing lube oil consumption, maintenance, and legacy management.

Regulatory compliance

Support your vessel’s regulatory compliance and protect your fleet’s engines systems from external threats.

Safety improvement

Optimize safety on board your vessel to help protect your crews, assets, and operational stability.

Global service network

Always get the support you need, wherever you sail, with our skilled, experienced team and worldwide service locations.

Two-stroke engines

Lower emissions with power plant and marine retrofits

Everllence supports the decarbonization of the maritime and energy sectors with targeted retrofit solutions that support the efficiency, flexibility, and environmental performance of existing power plant and marine engines. Our retrofit portfolio helps operators reduce fuel consumption, lower CO₂, NOₓ, and other greenhouse gas emissions, and meet regulatory requirements. Depending on the engine type, operating profile, and business objectives, solutions can range from performance optimization and efficiency upgrades to fuel-flexibility enhancements and alternative-fuel conversions. By extending asset lifetime and enabling a smoother transition toward low-carbon and future fuel technologies, Everllence retrofits help customers improve operational resilience, maximize return on existing investments, and support their long-term decarbonization strategies.

Everllence PrimeServ can retrofit 30,000 vessels worldwide with leading decarbonization solutions

Our two-stroke dual-fuel retrofits can reduce the world's merchant fleet's CO2 emissions (above 5000 GT) by over 20%

Everllence PrimeServ offers +60 retrofit and upgrade solutions ready for your in-service fleet

Comprehensive ship and power plant retrofit solutions

Everllence offers a comprehensive portfolio of retrofit solutions for two-stroke and four-stroke engines, turbochargers, GenSets, and propellers, engineered for the marine and power sectors. From fuel conversions and digital optimization to propeller redesigns and turbocharger upgrades, Everllence provides end-to-end support to future-proof your assets.

Stay flexible and compliant

We offer a comprehensive suite of retrofit solutions for two-stroke engines, aimed at improving efficiency, compliance, and operational flexibility. These retrofits are particularly relevant for vessel operators seeking fuel oil savings and meeting stringent environmental regulations, such as IMO's EEXI and CII standards.Key retrofit offerings include powerful engine optimization, full-scale dual-fuel conversions, derating, and propeller optimization. These solutions offer existing fleets significant operational upgrades and extended lifetime while ensuring they meet modern performance and emissions requirements.A central focus of Everllence’s retrofit strategy is the integration of digital and automation upgrades. Solutions like EcoTuning and EcoCam are designed to reduce fuel consumption and CO₂ emissions by optimizing engine performance across a range of operating profiles.We also offer full dual-fuel conversions, enabling your vessels to switch between conventional fuels and cleaner alternatives, such as LNG or methanol. These methanol and LNG ship retrofits not only ensure regulatory compliance but also enhance fuel flexibility and future-proof your investments.

Discover more about our two-stroke solutions here

Cut costs and emissions

We provide a range of retrofit solutions for four-stroke engines designed to enhance performance, meet evolving environmental regulations, and reduce operational costs. These solutions are suitable for a wide range of marine and stationary applications, including propulsion engines and GenSets, to bring older engines up to current performance standards.The retrofit portfolio of Everllence, with a focus on emissions reduction, fuel flexibility, and efficiency improvements, helps you align with regulations including IMO Tier III, EEXI, and CII, while also optimizing engine lifecycle value.Our four-stroke retrofit offerings include the integration of selective catalytic reduction (SCR) systems and exhaust gas recirculation technologies to significantly cut NOₓ emissions. We also offer dual-fuel solutions for methanol or LNG ship retrofits, or other alternative fuels, helping you to reduce greenhouse gas emissions and ensure regulatory compliance in emission control areas.Additional upgrades of engine control systems and electronic fuel injection systems, as well as performance tuning kits, further enhance fuel economy and reliability.

Discover more about our four-stroke solutions here

Discover more about our Pielstick retrofit solutions here

Boost efficiency and compliance

We offer retrofit solutions for turbochargers that boost efficiency, prolong component lifespan, and help to ensure compliance with emission regulations. These are suitable for both two-stroke and four-stroke engine applications, regardless of the engine supplier.A turbocharger retrofit from Everllence provides you with newer, more efficient models from our latest TCT and TCF generations, helping you to optimize engine performance at part-load conditions, reduce fuel consumption, and lower emissions. This is especially relevant in slow-steaming or load-variable operations.Everllence supports each turbocharger retrofit with detailed feasibility studies, performance simulations, and end-to-end project execution.

Discover more about our turbocharger solutions here

Optimize fuel efficiency

By upgrading and retrofitting existing vessels' Controllable Pitch propeller (CPP) systems, you will achieve better energy efficiency, lower actual fuel consumption, reduced emissions, and support compliance with the latest CII regulations.With state-of-the-art technology, hydrodynamic know-how, and advanced Computational Fluid Dynamics (CFD) analysis, design and optimization tools, we provide tailored solutions for improved propulsion efficiency – considering the actual propeller configuration, hull and rudder design parameters, and the operational profile of the specific vessel.Our solutions feature an optimized propeller blade design, often combined with a power limitation introduced in the existing remote control system. Other efficiency-improving devices, such as EcoBulb and fairing cone solutions, are often considered as well. This gives you an attractive decarbonization business case with a short return on investment – keeping vessels competitive in the market for an extended lifetime.We guide our customers through the entire process, from the initial assessment and clarification of optimization potential to installation and beyond. We're committed to helping you navigate regulatory changes smoothly and efficiently.

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Discover our retrofit portfolio

Future‑ready dual‑fuel conversions from Everllence PrimeServ enable significant emission and fuel‑cost reductions. Our retrofit solutions prepare existing fleets for evolving regulations and support operation on alternative fuels such as LNG, ammonia, and methanol.

Everllence Asset+ is a portfolio of digital retrofit solutions designed to enhance the efficiency, reliability, and performance of your marine and power plant assets. It integrates advanced monitoring, data analytics, and engine control capabilities to optimize operations in real-time.

Four- stroke marine engines and GenSet retrofit solutions

Everllence PrimeServ offers advanced retrofit and upgrade solutions that cut fuel use, optimize lubrication, extend asset life, and strengthen compliance. With smart digital tools for