Significant Energy Savings on Ships

Hoyer VMS Group has developed a system, Hoyer VMS EnergyEdge^TM that leads to significant reductions in energy consumption by cooling pumps and fans on ships and cuts emissions of CO2, sulfur, and nitrogen, among other pollutants. The growing focus on energy efficiency makes the technology attractive to shipowners worldwide.

For many years, pumps and HVAC systems on ships have operated like a faucet with no ability to adjust the flow: maximum flow regardless of demand. Hoyer VMS Group has introduced an innovative solution, Hoyer VMS EnergyEdge^TM (Energy Savings Solution), which optimises energy consumption in refrigeration pumps and fans on ships. Energy savings typically range from 45 to 70 percent. In addition, shipowners achieve a significant reduction in emissions of, among other things, CO₂, sulfur (SOx), and nitrogen (NOx), as well as less wear and tear on critical components, which limits the need for replacement.

The rationale behind the solution is that pumps and HVAC fans on ships have, for many years, been running constantly at maximum capacity because the systems are designed to handle the most demanding scenarios, including high-speed sailing. 

- It is a waste of resources to let pumps and fans run at full power during, for example, slow sailing or pilotage. That is why we have developed a system tailored to the shipping industry, which in recent years has faced increasing demands for energy efficiency on ships. We have no doubt that there is great potential for our EnergyEdge solution, because everyone has an interest in reducing energy consumption, says Palle Grankvist, Director Automation Sales, Hoyer VMS Group.

Hoyer VMS EnergyEdge^TM is a user-optimised solution that combines the use of variable-speed drives, sensors, and automation to reduce energy consumption. The system analyses real-time data and continuously adjusts the speed of fans and pumps when, for example, sailing speed and ventilation requirements change. 

- We’re seeing a trend where shipowners are becoming increasingly aware of the requirements, which will be tightened in the coming years. They want to comply with the new climate and environmental requirements, and at the same time, they gain a financial advantage, as the Hoyer VMS ESS is a cost-effective way to reduce energy consumption and lower emissions from ships, says Palle Grankvist.