“Collaborative Smart Grids” (CSGs) are a promising concept built on digital technologies and economic and organizational structures, directly linked to the empowerment of consumers, the promotion of behavioural change and increased collaboration among all stakeholders. CSGs require a new vision but also innovative business models and technology developments around energy production, distribution and consumption to be successful and sustainable. The multidisciplinary and multilayer concept embedded in CSGs is essential to contribute to greener and smarter energy systems in our societies. SMARTGYsum - SMART Green energY Systems and bUsiness Models- will train 15 ESR for 36 months to enable the implementation of the Smart Energy vision, focusing on different technical and socioeconomic aspects that conform Electric Energy Systems (EESs) and CSGs, providing an excellent basis to develop their future careers in Power Electronics, Electric Engineering, Material Sciences, ICT, Data Sciences but also energy capturing of value, value chains, finance & investments, management of energy markets, economical and policy instruments, etc. As a result, there will be a network of academic and industrial partners closely collaborating following a transferable, inter and multidisciplinary approach, aimed at raising the employability and career opportunities of ESRs within the public and the private sectors, as well as their potential for conducting innovation, entrepreneurship and for impacting in the European society at medium and long-term.