German supermarkets usually have a very large assortment of food and other goods from all corners of the world. However, in order to score with high quality food and to offer the customer a pleasant shopping experience, supermarkets suffer from a very high energy consumption. Here, 50-60% of the energy costs alone are only accounted for by the cooling of the food in the stores, i.e. the freezers and refrigerators on the sales floor, as well as the cold rooms for storing the food in the background. Since these cooling systems are very sluggish and cooling generally represents a good way of thermal energy storage, we see a huge untapped potential for flexible load shifting.
We rely on our software-based connection of the control units of the cooling systems to our platform and can thus control them dynamically and individually for shifting their electric consumption. These systems are particularly suitable because they run 24 hours a day, 365 days a year and are largely automated. Since food quality is often the top priority for supermarket operators, reliable control within a previously defined temperature band is particularly important to us. The software can never exceed or fall below the specified limits and the reliability of the cold chain is always our top priority.