The concept is based on a network of open access charging points. Here, depleted battery containers can be exchanged for fully charged replacements. A ‘pay-per-use’ model has been set up whereby ZES charges only for the cost of consumed renewable energy. This allows the vessel’s operating costs to remain competitive.” ZES (Zero Emission Services) is the company that bought the initial units. ZES was founded just last year by ING Bank, Engie, the Port of Rotterdam, and Wärtsilä. So, yes, a company cofounded by Wärtsilä bought the battery units from Wärtsilä — but I’m sure everything was done legally and fairly, especially since you can see that some very big players have been involved with Wärtsilä from early on.
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