Working with the designer, naval architects and system integrators, Nidec Industrial Solutions designed a 500 kWh solution to match the vessel’s expected load profiles and physical layout. By using lightweight aluminum frames for the storage systems, Nidec supported the architect’s goals for the ferry’s overall low weight. Because storage space was limited, the BESS was designed to fit inside the port and starboard hulls of the vessel.
To prevent humid, salty air coming in contact with the batteries’ modules, the BESS is housed in an unventilated, air-tight room. Nidec’s design of a closed-loop dual heating and cooling system uses an air-to-water heat exchanger to maintain the battery’s internal temperature within the prescribed range of 18°C to 28°C.
Battery Energy Storage System
- Total energy: 500 kWh
- Maximum C rate: 3
- DC network voltage range: 600-825 V
- Earth connection diagram: IT (no pole grounded)