HPS delivers first full-scale magnet-free propulsion system on service vessel AQS Æge

HPS has delivered a complete energy system with magnet-free propulsion technology for the service vessel AQS Æge. The delivery marks an important step in AQS’s work towards a fully electric fleet by 2033, and shows how smarter system choices can reduce complexity, lower life-cycle costs and provide more predictable round-the-clock operations.

Service vessels in aquaculture often operate in demanding conditions, with limited room for unplanned downtime. At the same time, many propulsion systems have become more complex, with more specialised components, higher service requirements and longer supply chains. This can increase both costs and risk throughout the vessel’s lifetime.

On AQS Æge, HPS has chosen a different path.

As system integrator, HPS is responsible for the energy system on board. In the propulsion system, magnet-free motor technology from ABB has been selected as a key part of the solution. The technology reduces dependence on rare earth metals and contributes to simpler maintenance, more predictable access to spare parts and lower operational risk over time.

CEO of HPS, Bengt Olav Berntsen says "We must develop energy systems for the full lifetime of the vessel, not just for the day of delivery. For the operator, it's about simpler maintenance, fewer uncertainties and operations they can rely on. This is how we at HPS want to contribute to maritime electrification."

By reducing complexity in the propulsion system, using energy more efficiently and building for a long service life, HPS is helping to shape a maritime industry where the most reliable choice can also be the most sustainable one.

The energy system on board is built around the HPS cLion Light DC grid. The system distributes and controls electrical power between the battery, generators, propulsion and other energy consumers on board. With built-in redundancy based on lessons learned from offshore vessels, and automatic fault handling, the solution is designed to maintain critical functions. Combined with a 2,000 kWh battery pack and a diesel-electric hybrid system, this gives the vessel flexible and energy-efficient operation under varying conditions.

"A vessel like AQS Æge requires suppliers who understand both the technical ambitions and everyday life on board. HPS has delivered a well-thought-out energy system that is easy to integrate and built to withstand many years of demanding operation." explains Lasse Stokkeland, Managing Director, Salthammer Båtbyggeri

AQS Æge is designed by Tomra Engineering AS and built at Salthammer Båtbyggeri.