Companies all over the place benefit from SUPRENs broad experience in the development of sustainable processes considering material and energy efficiency as well as economics. SUPREN is one of the leading independent process & energy consultants in the world and extremely well qualified to conduct energy audits in chemical industry as well as the general process industry. An energy audit allows to identify economic options to improve the energy efficiency of a specific facility. This can be done at several levels of detail, depending on the situation or specific needs of the client. A thorough energy audit includes the utility systems, energy sources, process- and waste streams and performances / efficiencies of equipment being used. Pinch-Technology is one of the tools in use to support heat integration. Resulting measures and projects to improve energy efficiency of a process range from simple insulation to more radical process changes. SUPREN has a strong background and industrial experience in process design, process modelling and simulation as well as process energy efficiency optimization. Being almost 20 years in business, Dr. Gottschalk gained his knowledge and experience form over 65 industrial projects to improve sustainability, energy efficiency and economics of processes. He is member of three networks of the cluster EnergyRegion.NRW, organized by the energy agency of the State of North Rhine-Westphalia, Germany (EnergieAgentur.NRW) and gives lectures on energy efficient processes at Haus der Technik (Essen, Germany).