Living in a modern world wouldn't be possible without energy. To generate energy several methods are used. For some of these processes vacuum is inevitable. The growing global importance of energy efficiency and environmental awareness causes an increasing demand for low emission coatings to produce thin-film solar cells. Furthermore energy production using nuclear fusion is becoming increasingly important in the research for clean alternative sources of energy. With vacuum technology conditions for fusion reactors can be established. Pfeiffer vacuum offers a comprehensive product portfolio for the energy generation market and can meet requirements such as carbon free vacuum, low end pressure, low cost of ownership, highest uptime and high suction speed.