Electric and hybrid drivelines for working vessels
Find your packageZEM integrates batteries, propulsion, control and service into one system, built for each vessel and backed by Volvo Penta.
Where our systems work
More than a hundred systems in service across six kinds of vessels, each engineered around how the vessel works.
Hybrid drivelines and peak shaving for supply, service and crew transfer vessels.
The ZEM system
One ring, four parts
The ring is what we deliver: battery, driveline, control and service, integrated into one closed system. The green segment is the charge.
Integrated by one team, from concept to service
Explore the technologyBattery
Marine type-approved battery systems, water-cooled and heated, in NMC, NCA and LFP. Delivered with the battery space itself: sensors, ventilation and fire suppression.
33 kWh – 10 MWh
Driveline
Electric and hybrid propulsion that combines battery, charging, propulsion and auxiliary systems, with full integration of Volvo Penta components.
≤ 900 kW per motor
Control
ZEM master control and power management on a programmable PLC architecture, with remote access and live data. Charging from shore AC to megawatt charging.
up to 1.9 MW MCS
Service
One team from concept and engineering to commissioning, then remote support, battery testing, software upgrades and responsible recycling.
0 safety events since 2015
ZEM packages
Storm Petrel moves light. Gannet works hard. Fulmar goes further. Shearwater keeps you moving.
Deliveries so far
Every system is engineered around how the vessel or site actually works. Since the first installation in 2015, there have been zero safety events.
- Systems installed
- 114
- Battery capacity installed
- 63 MWh
- Diesel saved every day
- 10,000 L
- CO₂ avoided every day
- 26 t
People
One team, from the first drawing to the last service
Engineers, project managers and service technicians who stay with the vessel after commissioning, on the service line, remotely and on board.
Projects
Sightseeing ferries in the fjords, fish-farm workboats, offshore vessels and lifeboats. A selection of systems we have delivered.
High-speed ferry
Vision, Future and Legacy of the Fjords
- Energy storage
- 1.8 MWh
- Propulsion
- 2 × 450 kW
- Speed
- 19 kn
High-speed ferry
Ryger Elektra
- Energy storage
- 2 MWh
- Propulsion
- 2 × 375 kW
- Top speed
- 23 kn
Aquaculture workboats
Moen Marin Nabcat
- Vessels
- 30
- Energy storage
- ≤ 1,100 kWh
- Propulsion
- 2 × 100–900 kW
City ferry
Byferga
- Energy storage
- 100 / 133 kWh
- Propulsion
- 150 kW
- Charging
- 100 kW induction
Harbour workboat
Stavanger Havnevesen
- Energy storage
- 264 kWh
- Propulsion
- 2 × 80 kW
- Charging
- 22 kW
Offshore supply vessels
Viking Energy and Viking Queen
- Energy storage
- 653 kWh
- Fuel savings
- > 20 %
Electric free-fall lifeboats
Viking Norsafe E-GES
- Njord
- 3 × E-GES 52
- Scarborough
- 2 × E-GES 45
Sightseeing catamaran
MS Bard
- Length
- 26.1 m
- Passengers
- 149
- Propulsion
- 2 × 350 kW electric
Hybrid conversion
Northern Skagerrak
- Length
- 46 m
- Deadweight
- 700 dwt
- Converted
- 2022
