HORIZON-CL4-2027-04-DATA-09

Energy efficiency and sustainability of AI data processing in Data Centres (IA) -

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Expected Outcome:

Pilots for new technologies including demonstration sites which contribute to energy-efficient and sustainable AI data processing in data centres, reinforcing EU strategic autonomy and climate goals. Project results are expected to contribute to one or more of the following outcomes:

  • Demonstrated innovations that substantially improve heat removal from high-power AI chips (e.g. direct on-chip cooling, advanced thermal interface materials, multi-scale thermal management), enabling higher performance without thermal throttling. This should lead to lower cooling energy needs and higher reliability for dense AI workloads.
  • Prototypes of novel backup power systems (such as graphene-enhanced batteries) that operate with minimal cooling requirements, improving data centre resilience and enabling better use of renewable power.
  • New methods and frameworks that optimise the entire data centre for energy-efficient AI processing. This includes intelligent workload scheduling and AI model optimisation techniques to reduce energy use (e.g. carbon-aware job scheduling and power capping to cut energy demand and peak temperatures), as well as designs for integrating on-site/off-site renewables and waste-heat reuse.

Outcomes should demonstrate potential for improved power usage effectiveness and utilisation of waste heat in external applications, aligned with European targets for carbon-neutral heating/cooling.

Scope:

Actions should address one or more of the following development areas:

  • Direct on-chip cooling and thermal management, including novel and innovative cooling techniques applied at chip and module level (direct liquid cooling, heat spreaders, thermal interface materials, and advanced packaging) and multi-scale thermal management techniques.
  • Energy-efficient power backup and storage systems: Innovations in early-stage energy storage concepts (graphene-enhanced batteries, supercapacitors, and other emerging battery chemistries) and approaches for net-zero backup.
  • Sustainable data centre architectures and AI workload optimization: addressing AI-driven workload scheduling, adaptive power management, dynamic resource allocation and integration of data centre heat capture and reuse.
  • Materials research for energy efficiency: Projects to make use of existing research in new materials and components supporting energy efficiency and thermal management, and to employ these for data centres benefit.
  • Optimisation of data centre operation and functioning: explore AI solutions to optimize the Data centre functioning, computing architecture, and virtualization, minimizing its carbon and environmental footprint.
  • Integration of data centres into energy systems and the wider region: including solutions that integrate Data centres into energy system planning and operation.
  • In addition, actions should establish open pilot demonstration sites to test and integrate research results, and to demonstrate, benchmark, and disseminate findings among relevant industrial stakeholders, including the European data centre and colocation industry, cloud providers, and edge computing operators. These pilot sites should furthermore serve as European reference points for showcasing breakthroughs and cutting-edge technologies for energy-efficient and sustainable data centres developed under this topic, acting as models for technology uptake across the European data centre industry.

    Projects funded under this topic are encouraged to build synergies and leverage their results with funded projects from Cluster 5 HORIZON-CL5-2027-05-D4-06: Thermal energy optimisation and waste heat recovery of high energy demand IT rooms in buildings or small edge data centres.

    Technology Readiness Level - Technology readiness level expected from completed projects

    Activities are expected to start at TRL 6-7 and achieve TRL 8 by the end of the project – see General Annex B.

    News flashes

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    call topic details
    Call status: Forthcoming
    Opening date: 2026-11-17 (1 month from now)
    Closing date: 2027-03-18 (5 months from now)
    Procedure: single-stage

    Budget: 39,000,000
    Expected grants: 4
    Contribution: 9,000,000 - 10,000,000
    News flashes

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    • 2026-10-06_06-35-43
    • 2026-03-03_06-30-40
    • 2026-01-20_06-30-33
    • 2025-12-16_06-30-33

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    Work Programme info
    Added 8 months ago by Alrun Hauke
    Eligibility for this topic is restricted under art. 22.5 of the Horizon Europe regulation (see [1]). Specifically, under art. 22.5, participation for projects under this call topic is forbidden for legal entities established in an eligible country, but which are directly or indirectly controlled by China or a legal entity established in China. As part of the proposal submission for this topic, consortium members have to fill in the ownership control declaration (see [2]). The coordinator has to collect these forms from all partners and submit them as a single appendix to the proposal. The ownership control declarations are examined by the EC as part of the evaluation process. If it is found that a consortium partner is established in an eligible country, but controlled by an entity established in China, the partner in question will will have to be removed from the consortium and its efforts distributed elsewhere. [1] https://eur-lex.europa.eu/eli/reg/2021/695/oj/eng [2] https://ec.europa.eu/info/funding-tenders/opportunities/docs/2021-2027/common/temp-form/af/ownership-control-declaration_en.docx

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    Work programme published · 17 Sep 2026 (3 weeks ago)

    Next: Call opens, 1 month from now (17 Nov 2026)

    Today

    Call published

    16 Dec 2025

    Work programme published

    17 Sep 2026 · est.

    Call opens

    17 Nov 2026

    Call closes

    18 Mar 2027

    Outcome expected

    18 Aug 2027 · est.

    Grant agreement signed

    18 Nov 2027 · est.

    Preparation Open for submission Evaluation Grant preparation Not yet reached
    1. Call published

      16 Dec 2025 · 9 months ago

      This topic was first published in TopicTree.

    2. Work programme published Estimated

      17 Sep 2026 · 3 weeks ago

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    3. Call opens

      17 Nov 2026 · 1 month from now

      Submissions can be made from this date.

    4. Call closes

      18 Mar 2027 · 5 months from now

      Deadline to submit a proposal.

    5. Outcome expected Estimated

      18 Aug 2027 · 10 months from now

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    6. Grant agreement signed Estimated

      18 Nov 2027 · 1 year from now

      The maximum time to sign the grant agreement is three months after applicants are informed of the outcome.

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