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Horizon Europe · European Union

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

Opens 17 Nov 2026

The EU's Horizon Europe programme expects to make 4 awards of €9 million – €10 million each, from a total budget of €39 million. Applications close on 18 Mar 2027 (EU calls usually close at 17:00 Brussels time). Organisations in EU member states and Horizon Europe associated countries such as Türkiye can usually take part; the topic conditions control.

Deadline
18 Mar 2027 (in 123 days)
Opens
17 Nov 2026
Grant amount
€9 million – €10 million per project
Total budget
€39 million
Funding rate
70% for companies, 100% for non-profits Standard rule for this programme; the call can differ.
Total budget
€39 million
Expected awards
4
Type of action
HORIZON Innovation Actions · HORIZON Action Grant Budget-Based
Likely applicant types
Companies, SMEs / start-ups, Non-profits, Universities & research, Public bodies From source categories or programme rules; the call decides.
Funder
Horizon Europe (HORIZON)
Reference
HORIZON-CL4-2027-04-DATA-09
Call
HORIZON-CL4-2027-04
Last checked
14 Nov 2026

Open the official call ↗ Add deadline to calendar

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.

Read the full text

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.

Read the full text

• 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.

Who can apply

Consortium of at least 3 independent legal entities from 3 different EU Member States or associated countries, at least one in a Member State (Horizon Europe standard rule).

Applicant categories are a starting point. The official call decides eligibility.

Topics

Computer sciences, information science and bioinformatics Cloud computing Edge computing data centre technologies energy efficiency

Timing

Single-stage call. Next deadline 2027-03-18. The portal states the exact cut-off time (EU calls usually close at 17:00 Brussels time).

How to apply

  1. Read the full topic on the Funding & Tenders Portal: expected outcome, scope, type of action and the topic conditions, including any country restrictions.
  2. Register each participating organisation in the Funding & Tenders Portal to get a PIC.
  3. Consortium of at least 3 independent legal entities from 3 different EU Member States or associated countries (Horizon Europe standard rule; Türkiye is associated). Confirm in the topic conditions.
  4. Prepare Part A (administrative forms and budget, completed in the portal) and Part B (the technical description on the official template for this type of action).
  5. Submit in the portal before the cut-off time on the deadline day. Late submissions are not accepted.

From the call text

Who can apply
Not stated in the call text we hold — check the official page
Company stage
Not stated in the call text we hold — check the official page
Single applicant or consortium
Read the topic conditions on the EU Funding & Tenders Portal for eligible countries, consortium requirements, budget and the application route.
Where applicants must be based
Read the topic conditions on the EU Funding & Tenders Portal for eligible countries, consortium requirements, budget and the application route.
Where to apply
Read the topic conditions on the EU Funding & Tenders Portal for eligible countries, consortium requirements, budget and the application route.

Read the EU application guide

Where these facts come from

FactValueHow we knowTaken from the source
Deadline18 March 2027
“Single-stage call. Next deadline 2027-03-18. The portal states the exact cut-off time (EU calls usually close at 17:00 Brussels time).”
official data field15 Nov 2026
Amount per applicantUnknown — not stated in the source we holdunknown—
Total budget€39 millionofficial data field15 Nov 2026
Funding rate70% for companies, 100% for non-profitsprogramme standard rule15 Nov 2026
Who can applyConsortium of at least 3 independent legal entities from 3 different EU Member States or associated countries, at least one in a Member State (Horizon Europe standard rule).programme standard rule15 Nov 2026
Where to applyRead the topic conditions on the EU Funding & Tenders Portal for eligible countries, consortium requirements, budget and the application route.read from the official text15 Nov 2026

Official sources

Official call page

Facts on this page come from the funder’s official data, taken on 14 Nov 2026. The funder's own documents, including later amendments, always take precedence.

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