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HORIZON EUROPE TOPIC · Cluster 4 · Digital, Industry and Space

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

HORIZON-CL4-2027-04-DATA-09 — the expected outcomes as checkable statements, what evaluators look for in this topic, and the conditions that shape the proposal.

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ForthcomingIADeadline 18 March 2027EUR 9 million to EUR 10 million per project

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TopicHORIZON-CL4-2027-04-DATA-09
StatusForthcoming
CallHORIZON-CL4-2027-04 — DIGITAL
DestinationDeveloping an agile and secure single market and infrastructure for data-services and trustworthy artificial intelligence services (2026-27)
Type of actionInnovation Actions
Opening17 November 2026
Deadline18 March 2027
BudgetEUR 9 million to EUR 10 million per project · 4 projects expected · EUR 39 million in total
TRL at the endTRL 8
Part B page limit40 pages (standard application form; check your call)
TemplateWork Programme 2026–2027 application form

Expected outcomes

Projects may contribute to some of the expected outcomes; say which ones and why. The topic says: “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:”

  1. EO1 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.
  2. EO2 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.
  3. EO3 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.

What evaluators will look for in this topic

Expected outcomes

  • Projects may contribute to some of the expected outcomes; say which ones and why.
  • For each outcome (EO1 to EO3), name who will use or adopt your results (a specific group, not “industry” or “society”), how they get them, and the indicator that shows the change, with baseline, target and date.
  • Use the topic's own words for each outcome, so the evaluator can tick it off.

What the scope asks for

Evaluators check the proposal against these sentences of the scope. Answer each one visibly, in the call's own words.

  • “Actions should address one or more of the following development areas:.”
  • “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.”

Conditions that shape the proposal

  • Part B, sections 1–3: 40 pages (standard application form). Text beyond the limit is not read; tables and figures count.
  • TRL: the topic expects TRL 8 by the end of the project. State where you start and the evidence for it.
  • Innovation action: evaluators expect a plausible path to commercialisation and named first users or customers.
  • Other Eligible Conditions: “In line with the “ restriction on control in innovation actions in critical technology areas ” delineated in General Annex B of the General Annexes, entities established in an eligible country but which are directly or indirectly controlled by China or by a legal entity established in China are not eligible to…”

Impact pathway and traps

  • The scope expects pilots or demonstration. Name the sites, the partners who run them and what is measured there.
  • Keep outputs, outcomes and impacts apart: what you deliver, what changes when others use it, and the long-term effect.
  • Link your outcomes to the destination's expected impacts in the Work Programme. Destination impacts are long-term effects, not project deliverables.
  • Name the barriers outside the project (regulation, markets, user behaviour) that could block uptake, and what you will do if they do.
  • Section 2.3 (the summary canvas) is optional on this call; the old split into scientific, economic and societal impact is no longer required.
The scope, as published

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, as published

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

Other topics in HORIZON-CL4-2027-04

Source and attribution

Topic text from the official topic page on the EU Funding & Tenders Portal, retrieved 19 October 2026. © European Union, reused under Commission Decision 2011/833/EU (CC BY 4.0). Changes: the expected outcomes and impacts are split into numbered statements, long passages are shortened, and the evaluator checklist is GrantWise's own commentary. Your call and the Work Programme always win; check them before you submit. GrantWise is independent and not affiliated with, endorsed by, or acting on behalf of the European Commission.