As a main theme at the 19th Annual Conference of the German Biogas Association and the Biogas Trade Fair from 2 to 4 February in Leipzig, Germany, biogas is an energy source for future generations. The Siemens Industry Automation Division will present products and systems for integrated, economic and safe automation in the biogas industry, both for smaller agricultural biogas plants and for large industrial plants. Siemens products like the modular and scalable Simatic PCS 7 process control system can also be used to automate several plants networked together, such as a sewage or waste processing plant in combination with a biogas plant. Use of process instruments to monitor pressure, temperature, flow, levels and limits will also be demonstrated.