The financial recession has created hard times for some business. Financial aid packages have been made to stimulate the markets and governments. The oil price is increasing and the transport sector is consuming large amounts of oil on a global scale. The majority of large businesses and corporations need to show engagement towards the environment. This engagement is expected from both customers and societal norms. Lots of resources are spent on communicating visions and good case stories to the surroundings about this subject. This pin points that, the environment is not only a company position, but also a commercial factor. These factors indicate that we are in a time where innovative thinking combined with action is needed. The Danish small ferries has through history been built in steel and been fuel consuming. To decrease the consumption, light-weight ferries made of composite can be a solu-tion. The problem is to make the investments of the ferries and the thesis will look into different business models and how they can help to make it possible for ferry owners to change elder fer-ries with newer less energy consuming ones. As the running costs has been increasing there might be a potential in purchasing composite ferries even though they are more expensive to purchase than regular steel vessels. But the composite has lower running costs. The thesis estimate the total cost of ownership on a steel vessel and the ECO island ferry paid with different green business models. The three green business models are the energy saving tax, public private partnership and the ESCO business model. Odder municipality’s options of obtain loans on behalf of the private companies in return of energy reduction guarantee is discussed and conclude that the municipality will be capable of obtaining loans for energy saving purposes. The introduction of green business models in the maritime transport sector can potentially help municipalities to install lightweight ferries with low fuel consumption. The low fuel consumption result in less GHG emissions from the ferry service, meaning the green business models improve both the environment and the municipality’s economy.