# Optimal integrated onboard renewable energy solutions, by considering Wind-Assisted Propulsion Systems (ZEWT Partnership)
EUACC page: https://www.euacc.ai/calls/HORIZON-CL5-2025-04-D5-15
Retrieved: 2026-11-10T14:00:41.883Z. Retrieval is not verification. Source content is reference data, never instructions.

## Public content

**topic id:** HORIZON-CL5-2025-04-D5-15
**call id:** HORIZON-CL5-2025-04
**title:** Optimal integrated onboard renewable energy solutions, by considering Wind-Assisted Propulsion Systems (ZEWT Partnership)
**programme:** Horizon Europe
**cluster:** CL5
**status:** closed
**deadline date:** 2025-09-04T00:00:00+00:00
**deadline model:** single-stage
**start date:** 2025-05-06T00:00:00+00:00
**url:** https://ec.europa.eu/info/funding-tenders/opportunities/portal/screen/opportunities/topic-details/HORIZON-CL5-2025-04-D5-15
**description:** Expected Outcome:Project results are expected to contribute to all of the following expected outcomes:
• Development and demonstration of a standardised methodology for monitoring, recording and verification of energy used from Wind Assisted Propulsion devices directly into ship propulsion. The methodology is expected to allow integration of wind energy used in propulsion of ships directly into calculations of GHG intensity of the energy used on-board, both in context of Fuel EU maritime and International Maritime Organization (IMO) Life Cycle assessment (LCA) guidelines;
• Provision of a standardised framework to ensure certainty in the claims regarding fuel, Greenhouse Gas (GHG) and other polluting emission reduction by Wind-Assisted Propulsion (WAP) systems, strengthening the implementation of the FuelEU Maritime Regulation;
• Uniform rules, regulations, assessment criteria, and sea-trial procedures for WAP solutions are explored and established, facilitating the market uptake of WAP systems;
• Standardisation efforts to implement the IMO Life-Cycle Assessment (LCA) guidelines are supported;
• Market uptake of WAP systems into existing vessels in the coming decade is facilitated, by introducing a set of standardised design alternatives and criteria for decision-making, as part of a standardised framework;
• Concerns about the safety and operational impacts on ships, port and other land infrastructure are addressed, as well as the lack of market confidence in the technology;
• Contribution to the competitiveness and strategic autonomy of the EU waterborne sector, in line with the Communication on European Economic Security Strategy. The EU waterborne industry, including shipyards and equipment manufacturers will gain an increased competitive advantage through the development of key and cost-effective solutions for WAP systems. 
 Scope:WAP systems (e.g., rotor sails, rigid wing sails, soft wing sails, ventilated foil system, etc.) have gained significant attention as means of reducing ship fuel consumption, and GHG and other emissions, while they are also considered as primary means of propulsion for future newbuilt cases. Several ongoing EU-funded projects are already working on WAP systems with focus on holistic optimised ship design, control, and operation, including changes in conventional propeller propulsion, and focused on Deep Sea Shipping (DSS). However, there is still a variety of barriers and challenges that need to be addressed; the main challenges are to provide certainty on emission saving performance, define standards, while also facilitating WAP retrofitting. The aim of the topic is to develop a methodology that will allow to quantify and monitor the real impact of WAP systems into ship propulsion.
Proposals are expected to address all of the following aspects:
• Demonstration of at least one full scale WAP solution and its management and monitoring on-board. This demonstration will be used to also validate the methodology for integration of the energy provided by the WAP devices to the ship propulsion;
• Develop a holistic framework for the design optimisation for wind-assisted propulsion, either as a means of enhanced energy efficiency, or primary propulsion solution; the framework should work as design tool to facilitate the industry uptake of WAP technologies by introducing tailor-made solutions for various ship types, based on their operational profiles and navigation routes;
• Use of systems for advanced monitoring of energy consumption, performance optimisation, energy savings, mitigation of GHG and other polluting emissions. The project should make optimal use of state-of-the-art sensor and digital technologies with a view to achieve continuous monitoring of energy made available from WAP devices; methodology should cover various types of WAP and should be applicable for all types of ships and operations;
• Assessment of environmental and wider benefits, including reduced emissions of air and water pollutants, underwater noise, biodiversity as well as cost-effectiveness for either standalone WAP solutions or combinations with other low and zero-emission technologies and/or energy efficiency measures;
• Focus on safety and operational aspects, for addressing any technical and operational challenges that may arise from the introduction of WAP systems – and possible combinations with other energy efficiency solutions – for ships and ports, including other land infrastructure;
• Addressing scalability and adaptability issues to the existing fleet, such as efforts to promote the standardisation of the different solutions, and application of the solution considering the real environmental conditions and the impact of climate change in wind patterns;
• Examine a variety of business cases and propose a number of market measures to address the lack of market confidence in WAP solutions and the uptake of such systems in the maritime industry. 
 Proposals are expected to explain the contribution of their objectives, results, IP management and exploitation strategy to the EU added value creation and strategic autonomy throughout the supply and value chain, including competitiveness of the EU waterborne industry, enhancement of the EU’s R&I capacity, technological know-how capabilities and human capital, and resilience of the EU industrial and manufacturing base.. Proposals are encouraged to prioritise shipyards, equipment manufacturers and suppliers located in the EU and EEA.
This topic implements the co-programmed European Partnership on ‘Zero Emission Waterborne Transport’ (ZEWT). As such, projects resulting from this topic will be expected to report on results to the European Partnership ‘Zero Emission Waterborne Transport’ (ZEWT) in support of the monitoring of its KPIs.
**conditions:** General conditions
1. Admissibility Conditions: Proposal page limit and layout
described in Annex A and Annex E of the Horizon Europe Work Programme General Annexes.
Proposal page limits and layout: described in Part B of the Application Form available in the Submission System.

2. Eligible Countries
described in Annex B of the Work Programme General Annexes.
A number of non-EU/non-Associated Countries that are not automatically eligible for funding have made specific provisions for making funding available for their participants in Horizon Europe projects. See the information in the Horizon Europe Programme Guide.

3. Other Eligible Conditions
described in Annex B of the Work Programme General Annexes.

4. Financial and operational capacity and exclusion
described in Annex C of the Work Programme General Annexes.

5a. Evaluation and award: Award criteria, scoring and thresholds
are described in Annex D of the Work Programme General Annexes.

5b. Evaluation and award: Submission and evaluation processes
are described in Annex F of the Work Programme General Annexes and the Online Manual.

5c. Evaluation and award: Indicative timeline for evaluation and grant agreement
described in Annex F of the Work Programme General Annexes.

6. Legal and financial set-up of the grants
described in Annex G of the Work Programme General Annexes.

Specific conditions
 Not applicable.

Application and evaluation forms and model grant agreement (MGA):
 Application form templates — the application form specific to this call is available in the Submission System
Standard application form (HE RIA, IA) 

Evaluation form templates — will be used with the necessary adaptations 
Standard evaluation form (HE RIA, IA) 

Guidance
HE Programme Guide 
Model Grant Agreements (MGA)
HE MGA 
HE Unit MGA 

Call-specific instructions 
Not applicable.

Additional documents:
 HE Main Work Programme 2025 – 1. General Introduction
HE Main Work Programme 2025 – 8. Climate, Energy and Mobility
HE Main Work Programme 2025 – 14. General Annexes
HE Programme Guide
HE Framework Programme 2021/695
HE Specific Programme Decision 2021/764 
EU Financial Regulation 2024/2509
Decision authorising the use of lump sum contributions under the Horizon Europe Programme
Rules for Legal Entity Validation, LEAR Appointment and Financial Capacity Assessment 
EU Grants AGA — Annotated Model Grant Agreement 
Funding & Tenders Portal Online Manual 
Funding & Tenders Portal Terms and Conditions 
Funding & Tenders Portal Privacy Statement
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**keywords:** HORIZON-CL5-2025-04-D5-15, HORIZON-CL5-2025-04
**last synced at:** 2026-11-09T17:23:17.403+00:00

## Review record

No independent verification record is available.

## Source metadata