The Eco Star 36K, a newbuild ethylene tanker owned by Hartmann Reederei, features a Wärtsilä shaft generator system, comprising the controllable shaft generator and PWM converter. The building programme faced a serious challenge when the shipyard declared bankruptcy before the project was completed. Because of this, the commissioning had to be completed in an unusually short period of time in order to fulfil the owners’ contract with the charterer. Wärtsilä reacted quickly to the challenge and with extra manpower and ready engineering solutions for every situation that arose, the commissioning was completed on time.