Cluster 5: Climate, Energy and Mobility

March 27, 2025

Time to read: 11 minutes

Cluster 5 aims to combat climate change by better understanding its causes, evolution, risks, impacts and opportunities, while making the energy and transport sectors more climate- and environment-friendly, more efficient and competitive, smarter, safer and more resilient.

Visit the Cluster 5 webpage for more information, or use the EU Funding & Tenders Portal to search for funding opportunities from all clusters.

Areas of Intervention

Climate science and solutions
Energy supply
Energy systems and grids
Buildings and industrial facilities in energy transition
Communities and cities
Industrial competitiveness in transport
Clean, safe and accessible transport and mobility
Smart mobility
Energy storage

Calls for Proposals

: HORIZON-CL5-2026-05-D5-07
AI-assisted digital aircraft design, manufacturing and MRO, towards a competitive aviation
Sub-Division: Aviation
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2027-03-D5-08
Sustainable aircraft circular design and additive manufacturing, towards a climate neutral aviation
Sub-Division: Aviation
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-04-Two-Stage-D5-09
Noise reduction breakthroughs for new ultraefficient aircraft
Sub-Division: Aviation
Open: December 15, 2026
Deadlines: April 14, 2027 (stage 1) and October 7, 2027 (stage 2)

HORIZON-CL5-2026-06-Two-Stage-D5-19
Non-exhaust emissions in road and railway transport
Sub-Division: Transport-related health and environment
Open: December 18, 2025
Deadlines: April 14, 2026 (stage 1) and October 8, 2026 (stage 2)

HORIZON-CL5-2027-03-D5-20
Assessing the effect of airport operations on air quality and noise in nearby communities
Sub-Division: Transport-related health and environment
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2026-06-Two-Stage-D5-10
Disruptive Technologies and Innovative Concepts for Energy Saving Onboard of long-distance ships (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 18, 2025
Deadlines: April 14, 2026 (stage 1) and October 8, 2026 (stage 2)

HORIZON-CL5-2026-05-D5-11
Ports of the future (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2026-05-D5-12
Shipyards of the future (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2026-05-D5-13
Safety of renewable low and zero-carbon waterborne fuels in port areas: risk assessment, regulatory framework, and guidelines for safe bunkering, handling and storage (ZEWT partnership)
Sub-Division: Waterborne transport
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2027-03-D5-14
Onboard renewable energy solutions and energy saving measures to reduce the fuel consumption of ships by at least 55% (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-15
Prospective evaluation of nuclear power potential for shipping (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-16
Autonomous vessels in short sea shipping and inland waterways
Sub-Division: Waterborne transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-17
Innovative Solutions for mitigating the environmental impact of waterborne transport in marine and aquatic Ecosystems (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-18
Enhanced electric operation and battery durability (ZEWT Partnership)
Sub-Division: Waterborne transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2026-05-D5-01
Large-scale demonstration of Heavy-Duty Battery Electric Vehicles (HD BEV) towards long-haul logistics operations (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2026-05-D5-02
Energy-efficient software-defined EVs (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 18, 2025
Deadline: April 14, 2026

HORIZON-CL5-2027-03-D5-03
Data-driven circular economy for e-mobility ecosystem (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-04
Demonstration of zero emission coaches and buses in long distance operations (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-05
Higher Voltage, Megawatt Charging System compatible, modular powertrain for Heavy Duty Vehicles (HDV) (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 15, 2026
Deadline: April 14, 2027

HORIZON-CL5-2027-03-D5-06
Fire prevention and mitigation for EVs in confined areas (2ZERO Partnership)
Sub-Division: Zero-emission road transport
Open: December 15, 2026
Deadline: April 14, 2027
: HORIZON-CL5-2026-07-D1-01
Next generation climate monitoring and related capabilities
Open: December 18, 2025
Deadline: April 15, 2026

HORIZON-CL5-2026-07-D1-02
Advancing European climate risk assessments
Open: December 18, 2025
Deadline: April 15, 2026

HORIZON-CL5-2026-07-D1-03
Economics of climate change and cost of inaction
Open: December 18, 2025
Deadline: April 15, 2026

HORIZON-CL5-2026-07-D1-04
Fighting disinformation and effectively communicating on climate change
Open: December 18, 2025
Deadline: April 15, 2026

HORIZON-CL5-2026-07-D1-05
Improving climate and weather models for Africa
Open: December 18, 2025
Deadline: April 15, 2026

HORIZON-CL5-2026-08-Two-Stage-D1-06
Closing knowledge gaps on Earth system science in support of global and regional assessments and climate policy
Open: December 18, 2025
Deadlines: April 15, 2026 (stage 1) and October 8, 2026 (stage 2)
: HORIZON-CL5-2026-09-D2-01
Producing battery-grade materials for electrodes through sustainable processing and refining of raw materials or developing bio-based materials (BATT4EU Partnership)
Sub-Division: Batteries
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2026-03-D2-02
Development of direct recycling processes (BATT4EU Partnership)
Sub-Division: Batteries
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-10-D2-03
Integrated Production and Product Development for Next-Generation Lithium-based Batteries for Mobility (BATT4EU and Made in Europe Partnerships)
Sub-Division: Batteries
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2026-09-D2-04
Coordinated topic with India on recycling of EV batteries
Sub-Division: Batteries
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2027-02-D2-05
Improvement of Adaptability, Flexibility and Efficiency of Existing Recycling Processes (BATT4EU Partnership)
Sub-Division: Batteries
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-02-D2-06
Sustainable and Competitive Cell Production Techniques for Lithium-ion And Sodium-ion Batteries (BATT4EU Partnership)
Sub-Division: Batteries
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-04-Two-Stage-D2-07
Novel approaches towards next-generation battery concepts, leveraging the enabling role of innovative advanced materials (BATT4EU and IAM4EU Partnerships)
Sub-Division: Batteries
Open: December 15, 2026
Deadlines: April 14, 2027 (stage 1) and October 7, 2027 (stage 2)

HORIZON-CL5-2027-05-D2-08
Demonstration for Long-duration Battery Energy Storage Systems (BATT4EU Partnership)
Sub-Division: Batteries
Open: May 5, 2026
Deadline: September 15, 2026
: HORIZON-CL5-2026-09-D4-01
Researching the technical, social & economic factors impacting the energy performance of Smart Buildings (Built4People Partnership)
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2026-09-D4-02
Low disturbance prefabrication approaches for deep renovation of multi-storey buildings (Built4People Partnership)
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2026-09-D4-03
Advanced data platforms to integrate whole life carbon in building information tools, assessments, and certification (Built4People Partnership)
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2026-09-D4-04
Validating policies and business models for affordable and sustainable housing (Built4People Partnership)
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2027-05-D4-05
On-site robotic and automated techniques for building renovation and new construction
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2027
Deadline: September 15, 2027

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
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2027
Deadline: September 15, 2027

HORIZON-CL5-2027-05-D4-07
Integrating circularity in LCA-based modelling frameworks for renovation of buildings (Built4People Partnership)
Sub-Division: Highly energy-efficient and climate neutral European building stock
Open: May 5, 2027
Deadline: September 15, 2027

HORIZON-CL5-2026-09-D4-08
Full-scale demonstration of heat upgrade solutions in industrial processes
Sub-Division: Industry
Open: May 5, 2026
Deadline: September 15, 2026

HORIZON-CL5-2027-05-D4-09
Demonstration of industrial excess/waste heat conversion to mechanical or electrical power
Sub-Division: Industry
Open: May 5, 2027
Deadline: September 15, 2027
: HORIZON-CL5-2026-10-D6-01
Flagship-pilot: large-scale demonstrations of CCAM (CCAM Partnership)
Sub-Division: Connected, Cooperative and Automated Mobility (CCAM)
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2026-10-D6-02
Geopolitical competition and socioeconomic resilience in CCAM: an innovation and policy roadmap for EU leadership (CCAM Partnership)
Sub-Division: Connected, Cooperative and Automated Mobility (CCAM)
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2026-10-D6-03
Generative AI for smarter CCAM: enhancing perception, decision-making, and validation (CCAM Partnership)
Sub-Division: Connected, Cooperative and Automated Mobility (CCAM)
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2027-06-D6-04
Holistic solutions for CCAM integration in critical scenarios (CCAM Partnership)
Sub-Division: Connected, Cooperative and Automated Mobility (CCAM)
Open: June 3, 2027
Deadline: October 7, 2027

HORIZON-CL5-2027-06-D6-05
European CCAM knowledge hub and tools for safe and scalable deployment (CCAM Partnership)
Sub-Division: Connected, Cooperative and Automated Mobility (CCAM)
Open: June 3, 2027
Deadline: October 7, 2027

HORIZON-CL5-2027-06-D6-12
Support for dissemination events in the field of Transport Research
Sub-Division: Cross-cutting issues
Open: June 3, 2027
Deadline: October 7, 2027

HORIZON-CL5-2026-10-D6-06
Increasing competitiveness and resilience of multimodal freight transport and logistics for competitive supply chains
Sub-Division: Multimodal transport, infrastructure and logistics
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2026-10-D6-07
Supporting sustainable and smart urban mobility in Europe (CIVITAS)
Sub-Division: Multimodal transport, infrastructure and logistics
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2027-06-D6-08
Enhancing Mobility for All: affordable, reliable, and accessible multimodal transport for inclusive rural and urban connectivity — Societal Readiness pilot
Sub-Division: Multimodal transport, infrastructure and logistics
Open: June 3, 2027
Deadline: October 7, 2027

HORIZON-CL5-2026-10-D6-09
Road Safety and resilience of rural areas
Sub-Division: Safety and resilience
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2026-10-D6-10
Enhanced resilience in multimodal passenger transport through digital technologies and generative and discriminative AI
Sub-Division: Safety and resilience
Open: June 4, 2026
Deadline: October 8, 2026

HORIZON-CL5-2027-06-D6-11
Enhancing Resilience and Accuracy in Positioning, Navigation, and Timing (PNT) Systems and e-conspicuity solutions
Sub-Division: Safety and resilience
Open: June 3, 2027
Deadline: October 7, 2027
: HORIZON-CL5-2026-03-D3-29
Pre-commercial appraisal for CO2 aquifer storage
Sub-Division: Carbon Capture, Utilisation and Storage (CCUS)
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2027-02-D3-30
Advancements in Direct Air Capture
Sub-Division: Carbon Capture, Utilisation and Storage (CCUS)
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-02-D3-31
Support to the implementation of an EU policy framework for CO2 transport and storage infrastructure
Sub-Division: Carbon Capture, Utilisation and Storage (CCUS)
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-07-D3-32
Delivery of industrial CCUS clusters — Societal Readiness pilot
Sub-Division: Carbon Capture, Utilisation and Storage (CCUS)
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2026-03-D3-18
Grid-forming capabilities for more resilient and RES-based electricity grids
Sub-Division: Energy systems, grids and storage
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-03-D3-19
Affordable and sustainable primary equipment for Future-Ready multi-terminal HVDC Systems
Sub-Division: Energy systems, grids and storage
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-03-D3-20
Hybrid AI-Control Framework for a next-generation grid-scale energy storage and system integration
Sub-Division: Energy systems, grids and storage
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-03-D3-21
Novel solutions for off-grid storage of renewable energy for critical infrastructures
Sub-Division: Energy systems, grids and storage
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-03-D3-22
AI-driven forecasting algorithms for Grid and Consumer friendly Energy Sharing — Societal Readiness pilot
Sub-Division: Energy systems, grids and storage
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-11-D3-23
Data sharing to support the training and development of AI foundation models in the energy sector
Sub-Division: Energy systems, grids and storage
Open: August 4, 2026
Deadline: December 1, 2026

HORIZON-CL5-2027-02-D3-24
Large scale operational validation and upscaling of state-of-the-art (Generative) AI tools and models powering a next generation digital energy system
Sub-Division: Energy systems, grids and storage
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-07-D3-25
Advanced TSO control rooms to enhance grid observability, stability and resilience
Sub-Division: Energy systems, grids and storage
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2027-07-D3-26
Advanced Distribution Management Systems (ADSM) for more efficient and flexible distribution grids
Sub-Division: Energy systems, grids and storage
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2027-07-D3-27
Integrated Approaches for Retrofitting Infrastructures with Innovative Energy Storage Technologies
Sub-Division: Energy systems, grids and storage
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2027-07-D3-28
Community of practice — Data-Driven Decision-Making in Energy
Sub-Division: Energy systems, grids and storage
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2026-03-D3-01
Targeting key value chain components for increasing the competitiveness of renewable energy technologies in Europe
Sub-Division: Global leadership in renewable energy
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-04-Two-Stage-D3-02
Next generation of renewable energy technologies
Sub-Division: Global leadership in renewable energy
Open: December 18, 2025
Deadlines: March 31, 2026 (stage 1) and October 20, 2026 (stage 2)

HORIZON-CL5-2026-09-D3-03
Innovative technologies and solutions to improve wind energy systems supporting the Strategic Energy Technology (SET) Plan on wind
Sub-Division: Global leadership in renewable energy
Open: May 5, 2026
Deadlines: September 15, 2026

HORIZON-CL5-2026-11-D3-04
De-risking renewable fuel technologies through transnational pre-commercial procurement of renewable fuel industrial value chains
Sub-Division: Global leadership in renewable energy
Open: August 4, 2026
Deadline: December 1, 2026

HORIZON-CL5-2026-11-D3-05
Demonstration of solid biofuel supply and conversion to high efficiency CHP from fully sustainable regional value chains
Sub-Division: Global leadership in renewable energy
Open: August 4, 2026
Deadline: December 1, 2026

HORIZON-CL5-2026-11-D3-06
Resource assessment for deep sedimentary and basement reservoirs
Sub-Division: Global leadership in renewable energy
Open: August 4, 2026
Deadline: December 1, 2026

HORIZON-CL5-2026-03-D3-12
Long-lifetime and optimised use of materials in recyclable Ag and In-free Si PV modules (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-03-D3-13
Industrial scale up and circularity pathway for IPV technologies (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: December 18, 2025
Deadline: March 31, 2026

HORIZON-CL5-2026-11-D3-14
Improved system design for innovative PV applications (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: August 4, 2026
Deadline: December 1, 2026

HORIZON-CL5-2027-02-D3-07
Concentrated solar thermal systems for decarbonising industrial processes
Sub-Division: Global leadership in renewable energy
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-02-D3-08
Co-funding Strategic Energy Technology (SET) Plan renewable fuel value chains at EU, national, regional, and local level
Sub-Division: Global leadership in renewable energy
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-02-D3-09
Innovative technologies and solutions to improve wave and tidal energy systems
Sub-Division: Global leadership in renewable energy
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-02-D3-10
Renewable Energy Valleys in Africa to increase energy security and energy access in Africa
Sub-Division: Global leadership in renewable energy
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-07-D3-11
Demonstration of hydropower technologies for efficient and forward-looking refurbishment of existing hydropower plants
Sub-Division: Global leadership in renewable energy
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2027-02-D3-15
Production technologies for solar photovoltaics beyond the state-of-the-art (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: December 3, 2026
Deadline: March 31, 2027

HORIZON-CL5-2027-07-D3-16
Industrial processes and equipment for innovative, reliable and scalable tandem technologies (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: August 4, 2027
Deadline: December 1, 2027

HORIZON-CL5-2027-07-D3-17
PV based electrification of the economy: Designing & optimising PV systems supporting industrial electrification and promoting participation in electricity markets (EUPI-PV Partnership)
Sub-Division: Global leadership in renewable energy
Open: August 4, 2027
Deadline: December 1, 2027