As an operator of financial market infrastructure and as a global supplier of financial information, SIX operates data centers in several countries. To make those data centers as sustainable as possible, a project to consolidate them was initiated in 2020. The project is scheduled to be completed by the end of 2024. Key milestones reached by 2023 included the closure of the group’s Nordic data center and the continual optimization of the energy efficiency of its data centers in Spain and Switzerland. In the final stage of the project, the data centers in France and England will be decommissioned, leaving a total of five data centers left in operation in the end: in Switzerland, Spain, Japan, Singapore, and the USA.
SIX operates its proprietary data center in Spain using 100% renewable energy. In Switzerland, a small percentage of nuclear-generated electricity is still utilized alongside renewable energy. The majority of the IT workloads at SIX are processed at those two data centers.
The data centers in Singapore, Japan, and the USA are managed by external suppliers. Electricity entirely from renewable energy sources is likewise deployed in Singapore and Japan. Some electricity derived from non-renewable energy sources is used only in the USA.
SIX embraces a hybrid cloud approach and evaluates the use of public cloud solutions on a case-by-case basis. Efforts are also underway to make the existing data centers as energy-efficient as possible, for example by cooling with outside air and by installing hot and cold aisles. Those efforts have already borne fruit. In August 2023, the data center in Zurich was awarded the SDEA SILVER Plus certification for its extraordinary efficiency and its minimal emissions. SIX is the first company in Switzerland to receive the SILVER Plus certification.