In addition to Chalmer’s activities, E.ON Sverige also contributes to the Field Test Sweden. They have developed the smart grid platform “CESO“, which enables a digital connection of the customer to E.ON grids. The platform focuses on optimizing energy carriers‘ district heating, district cooling and electricity production and distribution. Following pilots and first advanced physical tests, CESO has proven to be a promising solution for both heating and cooling by using the thermal capacity of buildings to store energy.
CESO consists of a local gateway (Energy Manager) and central cloud-based system (Portfolio Manager) that communicate in order to optimize both the building as well as the system: The Energy Manager communicates with the building management system (BMS), which is still the master, through a Modbus interface. In order to be able to communicate with CESO, the installation requires an adaptation of the BMS.
In a situation where the heat demand is larger than the available heat production, CESO can prioritize certain building or functions, resulting in reduced investment need in redundant production and distribution capacity. CESO can prolong the use of a started production unit by reducing the demand upon reaching its current capacity limit. As a result, the need for switching to a more expensive fuel type can be reduced and short start and stop costs can be avoided. Lastly, CESO as an established platform and infrastructure can be of great interest for service solution providers but also act as a supplier to end customer solutions, enhancing relationships between customers and new business opportunities.
The activities within the Field Test Sweden fully correspond to Sweden’s remarkably forward attitude to energy sustainability and innovation. The City of Malmö, the third partner of the Swedish consortium, is already the world leader when it comes to developing the sustainable urban systems of the future. And they have big plans: by 2020, the Malmö city district Hyllie is supposed to be powered by 100% renewable and recycled energy and by 2040 all, of Sweden is set to be using 100% renewable electricity.