france 2030

ECO‑GSC‑LDC is an R&D and industrial innovation project aiming to significantly reduce the energy consumption and environmental footprint of high‑performance and enterprise computing infrastructures. The project focuses on the development and validation of an optimized, full liquid‑cooling solution for standard 19‑inch Enterprise servers, which are traditionally air‑cooled.

By capturing heat directly at component level—particularly from CPUs and other high‑power elements—the project enables higher thermal efficiency, increased computing density and improved overall system reliability. This liquid‑first approach allows the use of latest‑generation free‑cooling and adiabatic technologies, operating at extended temperature ranges of approximately 20 °C to 40 °C at the rack inlet, well beyond the limits of conventional air‑cooled data centres.

The ultimate goal of the project is to achieve Power Usage Effectiveness (PUE) values below 1.2, representing an average 20% reduction in the carbon footprint of a mid‑sized data centre. ECO‑GSC‑LDC directly contributes to national and European objectives for sustainable digital infrastructures and low‑carbon high‑performance computing.

Our role

Bull contributes to ECO‑GSC‑LDC through applied research and innovation activities supporting the design, evaluation and integration of energy‑efficient server architectures based on full Liquid Direct Cooling. Our role includes contributing to eco‑design principles for large‑scale enterprise servers, assessing thermal behaviour and energy‑efficiency gains enabled by liquid cooling technologies, and supporting their deployment within enterprise and high‑performance computing environments.

In particular, Bull contributes to enabling the operational use of free‑cooling and adiabatic cooling technologies at extended temperature ranges, supporting the achievement of PUE values below 1.2 and a significant reduction in data‑centre carbon footprint. Through this project, Eviden strengthens its expertise in sustainable computing architectures while reinforcing its strategy around green HPC, energy‑efficient data centres and low‑carbon digital infrastructures.

Funding Program
France 2030 – ADEME
Project Duration
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