Battery
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
ZEM technology
One system, from battery to propeller
Batteries, propulsion, control and service from one integrator. More than a hundred projects delivered, backed by Volvo Penta's global network.
Why one integrator
A battery, a motor and a charger do not make a vessel electric. The system has to be engineered around how the vessel works: its route, its load profile, where and how fast it can charge.
ZEM has worked with marine batteries since 2010, helped write the first battery guidelines with DNV, and has had zero safety events since the first installation in 2015.
One ZEM system: batteries, the ZEM control cabinet, gensets for hybrid operation, electric propulsion, shore power and remote monitoring.
The four parts of the ring
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
Battery
From 33 kWh to 10 MWh
Scalable battery systems, chosen for the vessel’s drive cycle and approved for marine use.
- Marine type-approved NMC Flatpack and NCA Volvo Cube
- LFP Power and Energy packs
- All systems water-cooled and heated
- Battery space designed by ZEM, with sensors, ventilation and fire suppression
Control
Master control and power management
One control system for the whole driveline, built on open industrial hardware so it can be serviced and upgraded.
- Full integration of Volvo Penta components
- Advanced power management across battery, gensets and shore power
- Programmable PLC architecture
- DC control systems in standard cabinets
- Remote access and live data
Charging
From shore power to megawatt charging
Each vessel is tailored to the charging it will actually have at the quay.
| AC chargingWith onboard transformers | 125 A · 400 V |
|---|---|
| DC fast charging | CCS2 · up to 350 kW |
| Megawatt charging L1 | MCS · up to 600 kW |
| Megawatt charging L2 | MCS · up to 1.9 MW |
Driveline
Electric and hybrid propulsion
Propulsion motors and generators up to 900 kW each, combined with battery, charging and auxiliary systems into one driveline, with full integration of Volvo Penta components. Shown here in a high-speed ferry.
Hydrogen
Fuel cells in place of diesel gensets
In the Pilot E project, ZEM integrates PEM fuel cells that replace diesel generator sets on board.
- Fuel cell type
- PEM
- Output
- 145 kW
- Design life
- 25,000 h
- Approval
- DNV