The teaching material consists of freely usable slide presentations, as well as an energy calculator, example cases, educational videos, etc. The online materials are useful both for teaching and self-learning. The topics cover all the different phases of the building life cycle (project design, designing and constructing the building, maintenance and demolition) including solutions related to architecture, structures, building services and renewable energy. The material is suitable both for teaching and self-learning. Thanks to the wiki feature, information can be constantly updated and commented on by visitors and maintenance. Only neutral and reliable materials are used as sources and carefully referenced and linked. At the heart of the project is the need to get all the relevant information about carbon-neutral construction in one place, where the necessary information, useful projects and actors can be found quickly at the very moment when the information is needed.