We will need technological solutions which use less energy and utilize materials more efficiently than existing ones. Engineers are one of the key actors for planning environmentally sustainable technology. In addition, more and more services are designed alongside aiming at extended life cycle for products. To be able to design clean technology, new knowledge and skills are needed for next generation engineers. Here, clean technology means all products, processes, systems and services, which harms environment less than their alternatives. Clean technology brings added value to the customer and at the same time either directly or through the value chain reduces the harmful environmental effects. We present here Cleantech Engineers - project aiming at developing a new operation model for integrate clean technology knowledge and skills into the curriculum of the engineering. At present project has been underway for a year. Here we present results from the workshop organised for teachers from the faculty of technology aiming at define clean technology needs from their degree program point of view. In addition, an interview of a student group involved in clean a technology project in last academic year is presented. The relevancy of the CDIO framework to promote clean technology subjects is discussed as well as the expected outcomes of the project.