Renewables will be the main sources for supplying energy (electric, thermal and gas) to end consumers. By 2015, the European Union aims to decarbonize the energy system ba a carbon-free energy production. However, in order to integrate into energy systems (electric, thermal and gas) such a huge amount of volatile energy source more flexibility options are needed. Energy storage systems (ESS), multi energy systems (MES) are the most candidate options. Industrial manufacturing systems hide also a large potential of flexibility options, which could be offered to the system operators or be used within the manufacturing system for integrating the power generated by renewable inte the manufacturing processes.
The aim of this study is to identify and to point out the flexibility options, which industrial microgrids might use for integrating volatile energy sources inte the manufacturing process. The study analyzes the industrial microgrid from the point of view of a "net zero energy" concept and focuses mostly on the contribution theat energy storage systems, production buffer stocks and smart transformers might offer for increasing the flexibility options.