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This round is closed. The next round and similar open calls are listed below. Synced from the EU Funding & Tenders Portal on 9 November 2026.
This call is closed. These open or upcoming calls fund the closest work.
Based on projects the EU funded on the same subject in this programme.
periASTYFlexibly adjustable mobility, energy, industry, and governance innovations to improve decarbonisation of periurban areas and accelerate their integration in the transition towards climate neutrality
HORIZON-MISS-2024-CIT-01-04 · 2026 · Official record ↗
FENIXNew Life for Biowaste as a sustainable Soil Improver
HORIZON-MISS-2022-SOIL-01-10 · 2023 · Official record ↗
DANUBEAQUADEMONSTRATING RENEWABLE ENERGY AND DIGITAL SOLUTIONS FOR A RESILIENT REGIONAL AQUACULTURE
HORIZON-MISS-2025-03-OCEAN-03 · 2026 · Official record ↗
BIO-INTEL-MOBINTEGRATING SUSTAINABLE MOBILITY AND LOGISTICS WITH CITIZEN-CENTRIC INTELLIGENT SOLUTIONS FOR SAFE, SMART, GREEN, RESILIENT, AND INCLUSIVE CITIES
HORIZON-MISS-2024-CIT-01-04 · 2026 · Official record ↗
UP2030Urban Planning and design ready for 2030
HORIZON-MISS-2021-CIT-02-01 · 2023 · Official record ↗
EcoDaLLiECOsystem-based governance with DAnube lighthouse Living Lab for sustainable Innovation processes
HORIZON-MISS-2021-OCEAN-02-04 · 2023 · Official record ↗
H2-SEASCoastal Fishing Vessels Powered by Zero Emission Hydrogen Fuel Cell
HORIZON-MISS-2023-OCEAN-01-05 · 2024 · Official record ↗
DIGI-FISHDigital & Green Integration for Intelligent, Sustainable Mediterranean Fisheries & Aquaculture
HORIZON-MISS-2025-03-OCEAN-03 · 2026 · Official record ↗
Each one links to its EU funding record and the partners it works with: a starting list for building a consortium.
The projects are expected to deliver on one of or combination of the following topic outcomes:
Low-temperature district heating systems in urban areas offer higher potential for integration of renewable energy sources and waste heat, but their deployment is slowed down because the existing stock of inefficient buildings has been designed for high-temperature heat delivery systems. The topic supports the creation of the conditions necessary for the conversion of existing supply solutions – district heating, as well as individual heating ones – into low-temperature alternatives, along with reducing and optimising the heat load of buildings.
Efficient district heating systems are expected to meet increasingly stringent criteria in terms of the use of renewable energy, waste heat and/or co-generation in line with Article 26(1) of the Directive (EU) 2023/1791. To help district heating operators meet those criteria, there is a need to demonstrate solutions that support the transition to low-temperature district heating systems operating at supply temperatures at below 70°C.
There is currently a limited choice of established non-fossil fuel heating and hot water systems to replace fossil-fuel based heating systems in multi-apartment buildings. There is a need to demonstrate systems based on heat pumps solutions to replace both central and individual fossil fuel boilers in existing residential multi-apartment buildings.
Proposals are expected to address at least two of the following:
Projects are expected to demonstrate the proposed solutions in two different climate zones, at building, district and/or city level, and to assess the environmental, social and economic benefits of the proposed solutions for the local community and heating system operators while accounting for the regional economic and regulatory aspects. The system design must include advanced controls to allow exploiting the energy flexibility of individual heating systems in a collective way. Projects must present a concise state-of-the-art of existing relevant solutions, knowledge and tools from EU funded projects.
Projects are expected to contribute to the implementation of Climate City Contracts and/or Sustainable Energy Action Plans, Sustainable Energy and Climate Action Plans. Collaboration with the Cities Mission Platform is essential. The collaboration with the Cities Mission Platform must be formalized through a Memorandum of Understanding to be concluded as soon as possible after the project starting date. Under the guidance of the Cities Mission Platform, the selected projects will engage in clustering activities with other relevant projects supported under the Cities Mission to promote synergies and complementarities. Proposals should ensure that appropriate provisions for activities and resources aimed at enforcing clustering activities and cooperation with the Cities Mission Platform are included in the work-plan.
Technology Readiness Level - Technology readiness level expected from completed projects
Activities are expected to achieve TRL 7-8 by the end of the project – see General Annex B.
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
The following additional eligibility criteria apply:
At least two cities, represented by a local authority or by an entity with an explicit consent from the local authority, each from a different Member State or Associated Country, must participate as beneficiaries. At least one of the two cities must be one of the 112 cities selected for the EU Mission on Climate-Neutral and Smart Cities[[The EU Mission on Climate-Neutral and Smart Cities aims to deliver 100 climate-neutral and smart cities by 2030 and ensure that these cities act as experimentation and innovation hubs to enable all European cities to follow suit by 2050. On 28 April 2022, the Commission announced the 100 EU cities that will participate in the Mission. In addition, 12 cities have been selected from countries associated or expected to be associated the Horizon Europe programme.]].
Subject to restrictions for the protection of European communication networks.
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
To ensure a balanced portfolio covering both district heating and building-level heating solutions, grants will be awarded to proposals not only in order of ranking, but also to at least one highest-ranked proposal in each category of heating solution (district heating and building-level heating), provided all thresholds are met. This balanced portfolio is also achieved if one proposal addressing both categories (district heating and building-level heating) is funded.
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
Grants awarded under this topic will be linked to the following action(s):
HORIZON-MISS-2021-CIT-02-03
Collaboration with the Cities Mission Platform[[Set up by Horizon 2020 project NetZeroCities - Accelerating cities' transition to net zero emissions by 2030, Grant Agreement n. 101036519, and scaled up through topic HORIZON-MISS-2021-CIT-02-03: Framework Partnership Agreement (FPA) for the Climate-Neutral and Smart Cities Mission Platform.]] is essential and projects must ensure that appropriate provisions for activities and resources aimed at enforcing this collaboration are included in the work plan of the proposal. The collaboration with the Cities Mission Platform must be formalized through a Memorandum of Understanding to be concluded as soon as possible after the project starting date.
Eligible costs will take the form of a lump sum as defined in the Decision of 7 July 2021 authorising the use of lump sum contributions under the Horizon Europe Programme – the Framework Programme for Research and Innovation (2021-2027) – and in actions under the Research and Training Programme of the European Atomic Energy Community (2021-2025) [[This decision is available on the Funding and Tenders Portal, in the reference documents section for Horizon Europe, under ‘Simplified costs decisions’ or through this link: https://ec.europa.eu/info/funding-tenders/opportunities/docs/2021-2027/horizon/guidance/ls-decision_he_en.pdf]].
described in Annex G of the Work Programme General Annexes.
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)
Lump Sum MGA 
Call-specific instructions 
Detailed budget table (HE LS) 
Guidance: "Lump sums - what do I need to know?"
Additional documents:
HE Main Work Programme 2026-2027 – 1. General Introduction
HE Main Work Programme 2026-2027 – 12. Missions
HE Main Work Programme 2026-2027 – 15. 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
Applicants asked the EU 7 questions about this call and the EU published the answers. They clarify the call documents but do not replace them.
Please refer to the eligibility conditions, which clarify this point: " (…) cities, represented by a local authority or by an entity with an explicit consent from the local authority, (…) must participate as beneficiaries." This confirms that a public entity other than the city council itself may participate as a beneficiary, provided that it has the explicit consent of the local authority.
Read it on the EU portal ↗Answered 30 Sept 2026
Yes. The call title and scope clearly indicate that the focus is on the transition to low-temperature heating solutions in residential multi-apartment buildings. The includes the replacement of fossil-fuel boilers in existing residential multi-apartment buildings and demonstrations in “at least four residential multi-apartment buildings of at least 1000 m² each.”
Read it on the EU portal ↗Answered 3 Sept 2026
It means the maximum supply/flow temperature delivered to the building-level heating distribution system serving the emitters/terminals of each pilot building. The 50°C threshold was defined for the intended demonstration unit: an individual residential multi-apartment building of at least 1,000 m². Therefore, the relevant temperature must be assessed at the level of each pilot building, not only at the central plant or at the entry point of a multi-building network.
This interpretation is consistent with European Commission EPBD guidance, which defines supply temperature in hydronic heating systems as the temperature of the fluid supplied from the heat generator to the emitters.
Read it on the EU portal ↗Answered 20 Aug 2026
There is no dedicated upload location for supporting documents in the application form at proposal stage. In practice, the proposal should include an explicit statement confirming that the participating entity holds the mandate to act on behalf of the city in respect of the relevant interventions. Should the proposal be retained for funding, a formal letter substantiating the relationship between the entities and confirming the mandate will be required during Grant Agreement Preparation.
Read it on the EU portal ↗Answered 30 Sept 2026
There is no mandatory template or standard format. However, the document should be formal, dated, and signed by the mayor or another authorised representative of the public authority, and should clearly identify the entity receiving the mandate as well as its scope.
Read it on the EU portal ↗Answered 30 Sept 2026
No, not normally. The 1,000 m² threshold should be assessed per individual residential multi-apartment building. Aggregating separate buildings solely because they share a heating system or common administration is not the default interpretation of the scope, as it would deviate from the level of technical complexity envisaged in the call and reduce the comparability, standardisation, and replicability of the building-level demonstration. An applicant may justify an exception where the complex is legally and technically documented as one single building.
Read it on the EU portal ↗Answered 23 Jun 2026
The call primarily targets the retrofit or upgrade of existing high-temperature heating systems to low-temperature solutions. This is evident from key phrases in the topic text, such as:
• “Demonstrate solutions that support the transition to low-temperature district heating systems” (implying modification of existing infrastructure).
• “Replace existing fossil fuel boilers in existing residential multi-apartment buildings” (explicit focus on retrofit).
• “Reduced need for building retrofits” (addressing legacy systems).
While the bullet points under scope “Proposals are expected to address at least two of the following” do not explicitly exclude new building constructions, the overall objective of the call is to accelerate the transition from high to low-temperature systems in existing buildings. A proposal focusing solely on new builds would likely be considered not aligned with this core goal and evaluated as such. Proposals are expected to focus demonstration activities on already existing buildings.
Read it on the EU portal ↗Answered 9 Jun 2026
Confirm the current call documents and submission conditions with the funding authority.
View on EU portal ↗Source: EU Funding & Tenders Portal · synced 2026-11-09
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