Marine battery maker AYK Energy completed the largest retrofit ever on the hybrid-electric Ro-Pax ferry Aurora Botnia, operated by Finnish shipping line Wasaline. The upgrade took place at Turku Repair Yard in Finland. The vessel is now back in year-round service on the green corridor route between Vaasa, Finland, and Umeå, Sweden. The new AYK […] The post AYK Energy delivers world’s largest battery retrofit to Wasaline Ferry appeared first on Container News .