A successful energy transition needs innovative ideas – more often than not these ideas are digital, combining energy and digital technology. Such concepts are increasingly being generated in large volumes by adept start-ups. The Cologne Chamber of Industry and Commerce and EnergyAgency.NRW would like to show how established companies can incorporate these ideas into their own business operations or even make use of them within their offices or production facilities. At the Energy 4.0 – Partnering Successfully with Start-ups Workshop held at the beginning of November, a number of successful start-ups will be putting forward their solutions for supporting a successful energy transition.