The electricity grid is seen as a wide-area distributed process, determined by its sub-processes - in our case the loads and distributed generation. Network-based coordination needs to be done very carefully and properly timed to avoid instabilities. Luckily, every point of the grid has the same grid frequency and the same time. Integrating these two trivial things (implicit communication) into one consistent communication model might complement a low-quality (explicit) best-effort communication channel (e.g. Internet, GPRS) for real time applications. A simulation shall clarify how far we can go with this trick and what applications are possible.