With OpenCloud, we demonstrate that high-performance systems and sustainable IT need not be mutually exclusive. Since October 2025, OpenCloud has held the Blue Angel DE-UZ 215 certification for energy- and resource-efficient software. In our whitepaper, you can find out how OpenCloud saves energy, extends the useful life of hardware and strengthens digital sovereignty without compromising on security or performance. 👉 Download the whitepaper: https://opencloud.eu/en/sustainable-cloud-infrastructure-greener-it