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Horizon Europe · European Union

Prospective evaluation of nuclear power potential for shipping (ZEWT Partnership)

Opens 15 Dec 2026

The EU's Horizon Europe programme expects to make 1 award of €2 million, from a total budget of €2 million. Applications close on 14 Apr 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
14 Apr 2027 (in 150 days)
Opens
15 Dec 2026
Grant amount
€2 million per project
Funding rate
100% of eligible costs Standard rule for this programme; the call can differ.
Total budget
€2 million
Expected awards
1
Type of action
HORIZON Coordination and Support Actions · HORIZON Lump Sum Grant
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-CL5-2027-03-D5-15
Call
HORIZON-CL5-2027-03
Last checked
14 Nov 2026

Open the official call ↗ Add deadline to calendar

Expected outcome

Project results are expected to contribute to all the following expected outcomes:

• Drafting of a R&I roadmap towards deploying nuclear power in commercial shipping, including small modular reactors (SMRs) and other advanced nuclear technologies (e.g. complementing the latest European Industrial Alliance on SMRs technology roadmap [1] ), including identification of research gaps, infrastructures and future innovation needs

• Mapping of relevant regulatory regimes nationally, regionally and internationally for the use of nuclear-powered shipping, including recommendations on regulatory frameworks and international cooperation.

• Development of scenarios for the use of the technology, including potential damage scenarios.

• The implications for National Energy and Climate Plans and National Air Pollution Control Programmes as well as water pollution policies required by EU legislative framework.

Read the full text

• Assessment of total cost of ownership for the deployment of current and potential technologies.

• Development of safety, training and operational guidelines for nuclear-powered ships.

Scope

Nuclear propulsion has the potential to reduce emissions of air pollutants and to decarbonize the shipping sector, producing zero GHG tank-to-wake emissions and low upstream well-to-tank emissions. A coordinated effort among various stakeholders including industry partners, research performing organisations, NGOs, the European Commission, the International Atomic Energy Agency (IAEA), and the International Maritime Organisation (IMO) should help evaluate such prospective potential. It should benefit from the latest Research and Innovation (R&I) results, technical, socio-economic and environment studies, or initiatives being capitalised at EU and international level, to ensure a comprehensive assessment.

The main objectives are to assess the feasibility, safety, and environmental impact of using nuclear power for shipping to achieve zero-emission of GHG, air and water pollutants in maritime transport. Following a preliminary assessment and literature review, as well as detailed technical and economic studies regulatory and technical recommendations should be developed, along with a review of on-going pilot projects aimed at demonstrating the feasibility of nuclear-powered vessels.

Read the full text

The project should help evaluate the technical, economic, regulatory, environmental and social aspects of deploying nuclear power in commercial shipping, including small modular reactors (SMRs) and other advanced nuclear technologies.

Actions should address all the following aspects:

• Technical Feasibility: a) To assess the suitability of SMRs and other nuclear technologies for maritime use; b) To evaluate any integration challenges with existing and potential new ship designs, including modular designs.; c) To study the lifecycle of nuclear-powered vessels, including construction, operation, and decommissioning.

• Economic Viability: a) To conduct cost-benefit analyses comparing nuclear-powered shipping to conventional and renewable low and zero-carbon fuel options, taking into account the long-term availability of fuel and the cost of disposal of residues; b) To evaluate infrastructure requirements in the EU, such as port facilities for nuclear vessels; c) Mapping full costs for a nuclear propelled ship on a life cycle basis.

• Safety and Security: a) To develop safety protocols for nuclear-powered ships, including emergency response and accident mitigation; b) To address cybersecurity risks, external threats and proliferation concerns and safety in ports. c) Assessing long-term crew training requirements for nuclear operations, safety and security and their implementation in international training and certification regulations.

• Environmental Impact: a) To analyze the potential reduction of greenhouse gas emissions, air and water pollutants caused by mining, refining, use and disposal of spent nuclear fuel; b) To assess the impact of nuclear waste management, disposal as part of implementation of a circular economy approach; c) To assess the impact of…

Who can apply

A single organisation from an EU Member State or associated country can apply (Horizon Europe standard rule).

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

Timing

Single-stage call. Next deadline 2027-04-14. 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. This topic is for a single applicant: no consortium is needed (check the topic conditions for who qualifies).
  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
Deadline14 April 2027
“Single-stage call. Next deadline 2027-04-14. 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€2 millionofficial data field15 Nov 2026
Funding rate100% of eligible costsprogramme standard rule15 Nov 2026
Who can applyA single organisation from an EU Member State or associated country can apply (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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