The ‘C/sells’ showcase spans the southern German states of Baden-Württemberg, Bavaria and Hesse. The focus is on solar energy and a regional optimization of energy production and consumption in largely autonomous cells.These cells can represent entire distribution grids, but also individual sites such as airports. For the success of this project a functioning communication between all components of a cell and between the cells is necessary. Here PPC’s experience in communication technology is of benefit. Creating a cellular energy system shall demonstrate how safe, environmentally friendly, cost-effective and robust energy infrastructure can be installed.