The project "Eco - sustainable innovation" was developed by Polish young people who had the idea to create a project related to ecology and sustainability. They were assisted by young people from Croatia, Italy, Romania and Lithuania, who helped prepare the project. The aim of the project was not only to develop the creativity and broaden the horizons of young people, but above all to gain knowledge in environmental protection, efficient use of energy resources and use of sources of renewable raw materials. The main goal of the project was to strengthen the competence and initiative of the project participants by promoting pro-environmental attitudes and creating models of societies focused on sustainable energy development. The specific objectives of the project were: - increase participants' knowledge of renewable energy - preparing presentations on energy consumption in the local environment by each national group - researching the local community's knowledge and awareness of renewable energy sources - promoting knowledge about obtaining and using energy from renewable sources and the need to conserve natural resources, - forming appropriate social attitudes towards natural resources - learning about the principles of sustainable development - exchanging views and developing skills in an international team - improving skills of creative activity - learning about the culture of countries participating in the exchange - ability to overcome language and cultural barriers - establishing dialogue and cooperation with the local community through active participation in the exchange and using a range of formal and informal learning methods.