HORIZON-CL5-2026-11-D3-06: Resource assessment for deep sedimentary and basement reservoirs — expected outcomes, evaluation and traps

Topic	HORIZON-CL5-2026-11-D3-06
Status	Open
Call	HORIZON-CL5-2026-11 — ENERGY
Destination	Ensuring more efficient, sustainable, secure, and competitive renewable and decarbonised energy supply (2026-27)
Type of action	Research and Innovation Actions · lump sum
Opening	4 August 2026
Deadline	1 December 2026
Budget	around EUR 4.5 million per project · 4 projects expected · EUR 18 million in total
TRL at the end	TRL 4–5
Part B page limit	45 pages (standard application form; check your call)
Template	Work Programme 2026–2027 application form

Expected outcomes

Projects should contribute to all of the expected outcomes. The topic says: “Deep sedimentary/basement reservoirs are usually characterized by low permeability, high drilling cost and a scarcity of data, as they are typically ignored by hydrocarbon exploration. Major exploration challenges relate to predicting deep sedimentary and basement reservoir structures and properties to identify suitable locations for reservoir-independent approaches, capable of overcoming the…”

EO1 Increased knowledge base for developers to unlock unexploited geothermal resources, increase drilling success rate, increase geothermal sources performance and reduce the risk of induced seismicity and deploy geothermal energy in a sustainable way in environmental (notably on biodiversity and pollution) and socioeconomic terms.
EO2 Citizens and local communities are engaged and benefit from local, more secure and affordable renewable energy sources.

Expected impacts named in the destination

The wider, long-term effects the destination seeks. Your outcomes feed them; they are not project deliverables.

EI1 Energy producers have access to efficient and competitive European renewable energy and renewable fuel technologies with a solid knowledge base and are able to deploy them to enhance the EU’s energy security and reach its climate neutrality objectives, in a sustainable way in environmental (e.g., biodiversity, multiple uses of land and water, natural resources, pollution) and socioeconomic terms, and in line with the Sustainable Development Goals.
EI2 Technology providers have access to European, competitive, resilient, reliable, sustainable, and affordable value chains of renewable energy and renewable fuel technologies including emerging ones, and with strong export potential to supply both the EU internal and global markets. They benefit also from circular renewable energy technologies that are safe and sustainable by design with reduced and diversified external dependence on critical raw materials.
EI3 Economic sectors benefit from better integration of renewable energy and renewable fuel-based solutions that are, among others, competitive, cost-effective, efficient, flexible, reliable, and sustainable. Such integration is facilitated through digitalisation and integration of artificial intelligence of renewable energy technologies that provide network stability and reliability.
EI4 European industries benefit from a reinforced export potential of renewable energy and renewable fuel technologies, also through international partnerships, and become more competitive in innovative renewable energy technologies in Europe and globally.
EI5 European researchers benefit from a stronger community and from a reinforced scientific basis on renewable energy and renewable fuel technologies including emerging ones, also through international collaborations.
EI6 European citizens have access to an energy market that is fair and equitable, more resilient, uses all different types of local renewable energy resources, and is less dependent on fossil fuels imports. Citizens experience less fuel and energy poverty, and also benefit from new employment and upskilling opportunities. Local communities benefit from a more decentralized, affordable, and secure energy system and from multiple uses of land and water.
EI7 R&I actions will support the just digital and green transformation of the energy system through advanced solutions for accelerating the energy systems integration and decarbonisation. The developed clean, sustainable solutions will contribute to making the energy system work better for actors and supply more reliable, resilient and secure energy – even under increasingly more frequent extreme climate events.
EI8 The solutions developed will contribute to increase flexibility and grid hosting capacity for renewables through optimizing cross sector integration and grid scale storage as well as cover off-grid situations. They will improve the preparedness of the electricity system to support the EU's binding target for 2030 of minimum of 42.5% renewables in the gross final energy consumption (with the aspiration to reach 45%), and full decarbonisation by 2050. They will enable further electrification of demand and will enhance the competitiveness of the European value chain, reduce pressure on resources (also by making technologies ‘circular by design’) and decrease dependencies. Such solutions would…
EI9 The solutions will improve consumer awareness and engagement in the energy transition, via innovative offers and services (e.g. demand response, energy communities) and will target different types of consumers, including “hard to reach” population groups (such as energy poor or low-income households). This will result in increased trust in, and uptake of the new products and services entering the energy system.
EI10 Accelerated deployment of carbon capture, use and storage (CCUS) as a CO2 emission mitigation option in electricity generation and/or in industry applications, as well as carbon dioxide removal for negative emissions.

What evaluators will look for in this topic

Expected outcomes

Projects should contribute to all of the expected outcomes.
For each outcome (EO1 to EO2), name who will use or adopt your results (a specific group, not “industry” or “society”), how they get them, and the indicator that shows the change, with baseline, target and date.
Use the topic's own words for each outcome, so the evaluator can tick it off.

What the scope asks for

Evaluators check the proposal against these sentences of the scope. Answer each one visibly, in the call's own words.

“The proposals are expected to contribute to the assessment of environmental and social impacts and to unlock geothermal resources marked by low natural permeability at depths between 2000-6000m.”
“The proposals are expected to take into account the impact of reservoir conditions and parameters (i.e. in-situ stress, temperature, geo-mechanical, chemical properties) on the development and performance of the geothermal resources, covering, when relevant, aspects such as the suitability for different stimulation techniques, well designs and completion technologies, the possibilities for the coproduction of raw materials, wellbore stability.”
“The proposals are expected to validate the benefit of the proposed solution in the context of state-of-the-art decision and risk analysis methods.”
“To ensure trust building and communities’ support, partners are expected to practice inclusive societal engagement, which is early, continuous, and sensitive to the technical specificities (e.g. impact on biodiversity, water balance, pollution, land occupation, visual impact, noise as well as geo-mechanical changes (e.g. seismicity) and underground changes (e.g. disturbance of non-targeted aquifers)) that could affect local communities and…”
“This topic requires the effective contribution of SSH disciplines and the involvement of SSH experts, institutions as well as the inclusion of relevant SSH expertise, in order to produce meaningful and significant effects enhancing the societal impact of the related research activities.”

Conditions that shape the proposal

Part B, sections 1–3: 45 pages (standard application form). Text beyond the limit is not read; tables and figures count.
Lump sum: the budget is fixed per work package and paid when each work package is completed. Every work package needs activities and deliverables an evaluator can verify, and the effort must match the money.
TRL: the topic expects TRL 4–5 by the end of the project. State where you start and the evidence for it.

Impact pathway and traps

The topic asks for social sciences and humanities (SSH) expertise. Evaluators look for SSH partners with a real role in the methodology, not a token task.
Users or citizens are part of the scope. Show how they take part in the design and testing, not only that they are informed.
Keep outputs, outcomes and impacts apart: what you deliver, what changes when others use it, and the long-term effect.
For each destination impact you claim, show which of your outcomes feeds it. Destination impacts are long-term effects, not project deliverables.
Name the barriers outside the project (regulation, markets, user behaviour) that could block uptake, and what you will do if they do.
Section 2.3 (the summary canvas) is optional on this call; the old split into scientific, economic and societal impact is no longer required.

The scope, as published

Advanced methods, technologies and conceptual models, for different geological settings, to identify suitable conditions for geothermal resource exploitation, tackling the issue of data scarcity and leveraging the information available. The proposals are expected to contribute to the assessment of environmental and social impacts and to unlock geothermal resources marked by low natural permeability at depths between 2000-6000m. The scope covers advances beyond the state of the art in equipment, methods and models capable of providing in-depth understanding and predictive power for properties and processes beyond conventional depths. The proposals are expected to take into account the impact of reservoir conditions and parameters (i.e. in-situ stress, temperature, geo-mechanical, chemical properties) on the development and performance of the geothermal resources, covering, when relevant, aspects such as the suitability for different stimulation techniques, well designs and completion technologies, the possibilities for the coproduction of raw materials, wellbore stability. The proposals are expected to validate the benefit of the proposed solution in the context of state-of-the-art decision and risk analysis methods. To ensure trust building and communities’ support, partners are expected to practice inclusive societal engagement, which is early, continuous, and sensitive to the technical specificities (e.g. impact on biodiversity, water balance, pollution, land occupation, visual impact, noise as well as geo-mechanical changes (e.g. seismicity) and underground changes (e.g. disturbance of non-targeted aquifers)) that could affect local communities and ecosystems. This topic requires the effective contribution of SSH disciplines and the involvement of SSH experts, institutions as well as the inclusion of relevant SSH expertise, in order to produce meaningful and significant effects enhancing the societal impact of the related research activities.

Technology readiness, as published

Activities are expected to achieve TRL 4-5 by the end of the project – see General Annex B. Activities may start at any TRL. For an example of a methodology for the assessment of sustainability, circularity and contribution to the EU resilience and technological autonomy of clean energy technology in the R&I pipeline, please see Study on circular approaches for a sustainable and affordable clean…

Source and attribution

Topic text from the official topic page on the EU Funding & Tenders Portal, retrieved 19 October 2026. © European Union, reused under Commission Decision 2011/833/EU (CC BY 4.0). Changes: the expected outcomes and impacts are split into numbered statements, long passages are shortened, and the evaluator checklist is GrantWise's own commentary. Your call and the Work Programme always win; check them before you submit. GrantWise is independent and not affiliated with, endorsed by, or acting on behalf of the European Commission.

Expected outcomes

Expected impacts named in the destination

What evaluators will look for in this topic

Expected outcomes

What the scope asks for

Conditions that shape the proposal

Impact pathway and traps

Other topics in HORIZON-CL5-2026-11

Source and attribution