Frese FUELSAVE® - Intelligent FlowManagement for Marine Fuel Savings
Overview?Frese FUELSAVE® is a patented, energysaving solution designed for marine cooling water systems. By combining dynamic control valves, frequency converters, sensors, and automation in a fully managed installation package, FUELSAVE® optimizes flow and temperature control to significantly reduce pump and boiler energy consumption onboard vessels

How It Works
Dynamic pressure independent valves continuously adjust flow based on real-time system demand, eliminating overflow and preventing excess pumping energy.
Integrated automation and frequency drives ensure precise temperature and flow regulation across seawater and freshwater cooling loops.
Turnkey retrofit implementation includes mechanical and electrical installation, crew training, and remote performance monitoring for ongoing optimization

Key Benefits
Substantial Fuel & Energy Savings
Pump energy reductions of 50-70?%, depending on operational mode
On DFDS ferries Luna Seaways and Aura Seaways, FUELSAVE® delivered 48?% savings at sea and up to 71?% in port, translating to 130 tonnes of fuel and ~404 tonnes of CO? saved annually on just one vessel.
Additional reductions in boiler fuel consumption (??0.25?tonne per port call) were achieved using Frese’s OMEGA Compact 3way rotary valve to regulate condensate temperatures
Improved Regulatory Compliance
Helps improve vessel carbon intensity indexing (CII) scores and supports compliance with EEXI, FuelEU Maritime, and IMO emissions mandates
Fast Payback & Scalable Design
Typical ROI within under two years, depending on vessel type and operation pattern frese.uk.
Compatible with a wide range of ship types (RoPax ferries, WTIVs, container ships, tankers, etc.), and flexible enough to adapt to system modifications or expansions.

Ideal Applications
Cooling water circuits in engine rooms
Heat recovery systems needing precise flow and temperature balancing
Retrofit projects seeking turnkey energy-efficiency upgrades

Why Choose Frese FUELSAVE®
Developed by Frese A/S—a Danish company based in Slagelse, with decades of expertise in dynamic valve technology for marine and industrial applications.
Delivered as a complete, project-managed solution—from pre-installation survey to commissioning and remote monitoring, with minimal vessel downtime.
Supported by global partnerships with agents and installers like Goltens Worldwide, enabling efficient deployment in key maritime markets worldwide

Summary
Frese FUELSAVE® is a proven marine energysaving system that delivers rapid ROI, lowers fuel and CO? emissions, supports regulatory compliance, and enhances onboard operational efficiency. It offers shipowners a reliable, scalable, and futureready retrofit option for longterm performance improvements.