Sometime { probably quite at the beginning { in any ship design process the question raises about what propulsion and power generation configuration should be installed on the ship. A methodology is developed to design and evaluate different configurations, and finally come to the 'best' solution. Different components, with all different characteristics, have to be put together on the platform, in order to meet the requirements and perform its tasks successfully. The performance of the propulsion and power generation configuration can be assessed on a number of criteria. A multiple criteria analysis will reveal the 'best' solution.