Energy Saving System
The DESMI Navy Energy Saving System, based on the proven OptiSave automation platform, delivers advanced energy optimisation for naval fleets. The modular system continuously monitors and adjusts pump and fan performance to reduce fuel consumption and emissions while maintaining full mission readiness. By integrating real-time control and adaptive load balancing, OptiSave enables navies to achieve up to 15% energy savings without compromising vessel reliability or operational capability.
Energy Efficiency and Operational Optimisation at Sea
Energy efficiency plays a critical role in extending a vessel’s operational range and reducing lifecycle costs. DESMI’s Navy Energy Saving System intelligently manages auxiliary systems such as pumps, cooling water circuits and ventilation fans to optimise performance according to real-time demand. Each component is automatically adjusted via variable frequency drives and adaptive control algorithms, ensuring stable propulsion efficiency and minimising unnecessary power draw. The result is a smarter, more efficient energy profile across the ship’s mechanical and HVAC systems, contributing to both environmental performance and tactical endurance.
Applications Across Naval and Marine Fleets
The system is deployed across a wide range of defence and marine assets, including frigates, patrol vessels, warships and naval auxiliary ships. By optimising the performance of marine and engine room pumps, cooling systems and fuel handling circuits, the solution supports efficient operation during both harbour and mission conditions. For energy-efficient pump operation in demanding naval environments, explore DESMI’s pumps for navy ships.
Typical applications include:
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Cooling water control and flow optimisation
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Fuel and lubrication systems with variable load demand
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HVAC and ventilation energy management
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Integration with existing propulsion and automation systems
Whether for new builds or retrofit projects, the system is fully scalable and tailored to the vessel’s class and operational profile, ensuring consistent energy performance across diverse naval platforms.
Key Benefits and Performance Outcomes
DESMI’s Navy Energy Saving System provides tangible, measurable benefits for naval operators worldwide.
Typical outcomes include:
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Verified fuel savings of up to 15%, delivering a fast return on investment
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Reduced CO₂ and NOₓ emissions in alignment with naval sustainability objectives
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Extended equipment lifespan through lower mechanical load and wear
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Reduced operating costs and maintenance requirements
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Improved endurance and operational autonomy during missions
With proven performance data from operational fleets, the solution demonstrates how automation and control can deliver significant operational and environmental advantages for defence users.
System Design and Technical Features
The DESMI Navy Energy Saving System features a modular design integrating sensors, controllers and variable-speed drives into an easy-to-operate platform. Its technical foundation includes adaptive control algorithms, advanced motor interfaces and digital dashboards for both engine room and bridge use. The system interfaces directly with centrifugal pumps and positive displacement pumps commonly used in naval engine rooms, as well as other auxiliary systems handling seawater, fuel and cooling water flows.
Each module can be configured for vertical or horizontal installations and is designed to operate under low Net Positive Suction Head (NPSH) conditions typical of naval environments. Remote diagnostic capability and predictive maintenance features ensure continuous system reliability with minimal downtime. For retrofit projects, the plug-and-play configuration reduces installation time, integrating smoothly with onboard power management and automation systems.
Compliance and Naval Standards
DESMI’s solutions are available in designs tested to meet the requirements of naval and marine classification societies, including DNV and Lloyd’s Register. The Navy Energy Saving System is designed to meet relevant International Maritime Organization (IMO) energy efficiency guidelines and applicable EU emission directives for defence adaptation. Equipment variants can be supplied in accordance with MIL-STD requirements for shock, vibration and electromagnetic compatibility, ensuring robust performance under the most demanding operational conditions.
Proven Global Installations and Project References
DESMI shock rated pumps have been supplied for numerous naval programmes across Europe and allied fleets, including ship classes for the UK Royal Navy and other NATO customers. The pumps have demonstrated stable operation after shock testing and real-world deployments, confirming reliability in scenarios such as engine room cooling systems, firefighting and fuel delivery under combat readiness standards. These references testify to DESMI’s capability to produce pumps that comply with strict defence procurement criteria and to provide long-term operational security in critical marine systems.
