The EuroHPC Joint Undertaking and Greece's research network GRNET have inaugurated Daedalus, a new supercomputer in Greece, according to DCD. The system sits at the Lavrion Technological Cultural Park, which belongs to the National Technical University in Athens.
Hewlett Packard Enterprise built the cluster around more than 2,000 Nvidia H200 Grace Hopper Superchips and cools it with direct liquid cooling. It is rated at 85.69 petaflops of sustained performance and 115 peak petaflops. Daedalus appeared on the June 2026 Top500 list in 31st place and ranked 23rd on the Green500 list of energy-efficient systems. The gap between those two positions suggests the machine performs relatively better on efficiency than on raw speed, though the source does not draw that comparison.
The machine runs in a new 6.3MW data center built inside the 1,500 sqm former Power Station building at the park. Reusing an existing industrial structure is an unusual siting choice for a system of this class. A 2MW photovoltaic array at the park generates power for self-consumption and helps cover part of the facility's energy needs. The source does not say what share of demand the array meets.
The project cost €36 million. EuroHPC JU contributed 35 percent, and the remaining 65 percent came from Greece's National Recovery and Resilience Plan, 'Greece 2.0', which is financed through NextGenerationEU. Daedalus was first announced in 2022 and went to tender in July 2024. Prime Minister Kyriakos Mitsotakis attended the inauguration and highlighted the historical significance of the building.
GRNET operates under Greece's Ministry of Digital Governance and runs several other data centers, including sites near Filippiada, at the University of Crete in Heraklion, and within the National Documentation Center of Greece. EuroHPC JU, launched in 2018 and based in Luxembourg, has now procured 12 supercomputers across Europe, with dozens more in development or planning.
Why it matters: Daedalus shows how public HPC programs are pairing GPU-dense, liquid-cooled systems with converted buildings and on-site solar. Its Top500 and Green500 placements give a first benchmark for the design, but the source gives no operating data on cooling performance, utilization or how much solar output the site actually uses.
TwinStack automated analysis, based on reporting by DCD. Check the original for full details.