Battery

FAQ

Marine batteries are containers of one or more cells in which chemical energy is converted into electricity. Marine batteries are modular containers of one or more cells in which chemical energy is converted into electricity. Source: Zestas

FAQs

How do batteries work? How do batteries work?
What is the lifetime of batteries? What is the lifetime of batteries?
What standards and certification exist to ensure battery system safety and quality? What standards and certification exist to ensure battery system safety and quality?
What happens to batteries at the end of their use life? What happens to batteries at the end of their use life?
What different types of batteries exist? What different types of batteries exist?
What is thermal runaway and how is it prevented? What is thermal runaway and how is it prevented?
How is the safety of the crew and ship assured during battery installation? How is the safety of the crew and ship assured during battery installation?
What is a Battery Management System (BMS)? What is a Battery Management System (BMS)?

How is the safety of the crew and ship assured during battery installation?

The safety of crew and installation personnel is of utmost importance. A variety of hardware and integrated software protocols. These systems work together to protect the crew and system during the installation procedure.

Safety mechanisms – Image courtesy of SHIFT Clean Energy

Safe voltage isolation is provided with:

A contactor in every module
No voltage during shipping
Arc flash prevention during installation
No voltage in an emergency for personal safety
No hydrogen generation when submersed in sea water
Use breaker to isolate string instead of contactor + fuse

During start-up:

Motorized breaker connects ESS to the DC Bus
BMS checks for correct cabling prior to enabling internal contactors and switching on battery
Once setup complete, system waits for control command
to connect to the DC Bus
Final DC Bus connection performed by motorized breaker
Ensures operator/installation safety and system isolation

– Information from SHIFT Clean Energy –

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