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Percorrer por tipo de recurso "conference paper"

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  • Application of the Play-Based Exploration Pyramid Approach Adapted to Deep Geothermal Resource Mapping at the European Scale in the EU GSEU Project
    Publication . Herms, Ignasi; Caldera, N.; Arnó, Georgina; Canteli, P.; García-Crespo, J.; Carrión, E.; Ramalho, Elsa; Carvalho, João; Nádor, A.; Steiner, C.; Janku, L.; Koevoets, M. J.
    ABSTRACT: This work introduces version 1.0 of the Pan-European Atlas of Sustainable GeoEnergy Capacities (SGC), developed within the GSEU (Geological Service for Europe) project. The Atlas applies the Play-Based Exploration Pyramid (PBEP) approach to harmonize and standardize the assessment of deep geothermal resources across Europe. The methodology follows a multiscale structure—Levels 0 to 3—that refines geothermal understanding from regional geosystems to detailed local targets. Version 1.0 has been published in spring 2025 via the European Geological Data Infrastructure (EGDI) and includes Levels 0 and 1. Level 0 provides public data from boreholes and thermal springs, serving as the base for Level 1, which maps favorable areas for geothermal exploration using Geothermal Play Typing (GPT). The release includes a catalogue of near 400 factsheets describing each GPT unit, along with a metadata report. Future versions (2.0 in 2025 and 3.0 in 2026) will introduce deeper layers of detail. Level 2 will identify potential geothermal reservoirs using 1D stochastic estimations of geothermal and heat storage potential. Level 3 will compile existing 2D/3D maps and models for detailed local-scale reservoir assessments. Altogether, the Atlas supports Europe's energy transition by enhancing knowledge and visibility of its deep geothermal potential.
    2025-06Comunicação em conferência Acesso aberto Ver mais
  • Current Progress of Activities at EU-SOLARIS ERIC: The European Research Infrastructure Consortium for CSP Technologies
    Publication . Sánchez-Moreno, Ricardo; Blanco Galvez, Julian; Guillot, Emmanuel; Flamant, Gilles; Blanco Muriel, Manuel Jesus; Benitez, Daniel; Georgiou, Marios; Fylaktos, Nestor; Cardoso, João; Canavarro, Diogo; Martín, José; Martinez, Diego
    ABSTRACT: An ERIC, established by a decision of the European Commission, is a legal entity possessing legal personality and full legal capacity acknowledged across all EU Member States. Its primary role is to establish and operate a research infrastructure on a non-economic basis. Under the initiative of Spain, France, Germany, and Cyprus as Members, with Portugal as an Observer, a European Research Infrastructure Consortium (ERIC) has been formed. This consortium, named "European Solar Research Infrastructure for Concentrated Solar Power" (EU-SOLARIS ERIC) is established in accordance with Council Regulation (EC) No. 723/2009 of 25 June 2009. The establishment of an ERIC was sanctioned by the European Commission, as evidenced in Commission Implementing Decision (EU) 2022/2297 of 19 October 2022 [1]. The inaugural assembly of the EU-SOLARIS ERIC took place at the CIEMAT Headquarters in Madrid on 12th January 2023. During this gathering, the General Assembly was officially convened, and the Statutes along with other governing documents were formally endorsed. At the time of composing this document, negotiations for the accession of three additional countries—Greece, Turkey, and Italy—are underway. This paper summarizes the R&D activities carried out during this first year of the ERIC, particularly, we describe the new projects achieved.
    2025-08Comunicação em conferência Acesso aberto Ver mais
  • Decarbonization Transition Pathways and Regional Trends: Insights from One Million Studies
    Publication . Bento, Nuno; Alves, Tiago; Ribeiro, Ricardo; Fontes, Margarida
    ABSTRACT: As global temperatures near critical thresholds and emissions continue to rise, the urgency for strategic, accelerated decarbonization grows. Despite a vast climate mitigation literature, a systematic understanding of actionable pathways remains limited. Here, we apply artificial intelligence to analyze over one million scientific papers (2011–2021), generating a data-driven typology of six archetypal decarbonization pathways: Technology Breakthrough, Electrification of Uses, Integrated Policy, Decarbonization of Electricity, Demand Reduction & Co-benefits, and Land Use & Circularity. Regional patterns show Electrification of Uses prevailing in Europe (EU27), while Technology Breakthrough dominates in China, the US, and Japan. Increasing political and societal resistance to mitigation makes the strategic selection and combination of pathways even more critical. Our analysis highlights key synergies between pathways, the scientific competencies required to support them, and persistent gaps—particularly in Land Use and Circularity. We also compare current climate policy directions with the typology, revealing alignment gaps that may weaken policy effectiveness. This framework enables policymakers to better match strategies with regional capacities and research strengths, offering a more coherent approach to decarbonization. Strengthening the integration of science, technology, and policy is essential to overcome fragmentation and deliver the emissions reductions needed to meet the net-zero climate targets.
    2025-06Comunicação em conferência Acesso embargado Ver mais
  • Deep geothermal resources in the Pan-European Atlas of Sustainable GeoEnergy Capacities (GSEU project): The Play-based Exploration Pyramid concept
    Publication . Herms, Ignasi; Caldera, N.; Arnó, Georgina; Canteli, P.; García-Crespo, J.; Carrión, E.; Ramalho, Elsa; Carvalho, João; Nádor, A.; Steiner, C.; Janku, L.; Koevoets, M. J.
    ABSTRACT: This work introduces version 1.0 of the Pan-EU Atlas of Sustainable GeoEnergy Capacities (SGC), delivered by the GSEU (Geological Service for Europe) project. It details the methodology evolving from the Play-Based Exploration Pyramid (PBEP) concept into a practical approach for sharing harmonized knowledge about deep geothermal energy potential across Europe. This Atlas aims to deliver a standardized and generalized understanding of geothermal resources, emphasizing the potential in the framework of the Europe’s sustainable energy transition. The PBEP concept of the PanEU Atlas of SGC follows a multiscale geothermal exploration approach that systematically narrows focus from a geosystem to local scale, organizing technical and scientific data from broad, low-knowledge areas to highly detailed high-knowledge regions or local targets. It aims to ensure a refined understanding of geothermal plays, improving the identification of potential areas across Europe, spanning four levels (Level 0 to Level 3) and incorporating further refined knowledge in the assessment of geothermal resource. Levels 0 and 1 GIS datasets were published along spring 2025 in the European Geological Data Infrastructure (EGDI) as version 1.0 of the Atlas. Information available includes public data from boreholes and thermal springs (Level 0), which forms the basis for Level 1 - a harmonized map highlighting favourable prospecting areas for deep-origin geothermal resources, classified according to Geothermal Play Types (GPTs). This is accompanied by a catalogue of factsheets for each delineated GPTs across EU (~ 400 in total), summarizing the generalized findings along with a report on description and metadata. This scale-dependent process will continue in version 2 of the Atlas, with Level 2 focusing on identified potential geothermal reservoirs using 1D lumped stochastic estimations for geothermal resources and medium to high heat storage potential into deep aquifers. Finally, Level 3 will provide detailed local-scale evaluations of specific targets, compiling already existing maps and models containing spatial-distributed reservoir assessed information in 2D and/or 3D.
    2025-10Comunicação em conferência Acesso aberto Ver mais
  • Driving Transformative Change: Assessing the Direction and Design of Decarbonization Policies in the EU, US, China, and Japan
    Publication . Fontes, Margarida; Sousa, Cristina; Bento, Nuno
    ABSTRACT: The transition to low‐carbon economies demands policies that drive both decarbonization and deep socioeconomic transformation. This paper assesses the “transformative potential” of 3,400 decarbonization policies from Europe, the US, China, and Japan. We define transformative potential considering both policy direction – alignment with sustainability goals, and policy design ‐ presence of mechanisms that can induce transformation, such as experimentation, actor diversity, multiscale coordination, and reflexivity. The research shows that when we consider a broad universe of decarbonization policies, transformative potential is still limited: only 20% of policies align with at least one transition pathway and include at least one transformative mechanism; and just 2% include three or more mechanisms. By identifying distinguishing features of these higher transformative potential policies, the paper contributes to understanding how technological, sectoral and contextual factors shape the capacity of policies to enable transformative change.
    2025-06Comunicação em conferência Acesso embargado Ver mais
  • Ecogeodidactic resource - A circular path for natural stone wastes: Didactic interest, economic potential and safety assessment proposal
    Publication . Torres, Maria Madalena; Alves, Raquel; Carvalho, Cristina Isabel Paulo; Figueiredo, Bruno; Vilaça, Maria Teresa
    ABSTRACT: This research project integrates Sustainable Development Goals (SDGs), specifically Quality Education (SDG4) and Responsible Consumption and Production (SDG12), and involves Education Sciences, Geosciences, and (Eco)Design. The project aims to create an ecogeodidactic resource that includes both physical and theoretical components, pedagogical strategies, and teacher training, while incorporating inputs from children and the educational community. The methodologies of action-research and cocreation have been adopted, focusing specifically on Environmental Education for Sustainability within the Geosciences (mineral resources and geological heritage). The project seeks to revalue stone waste from slab processing, by developing a high-value by-product. During the pilot phase, stone pieces (“geoelements”) were selected for interaction with preschool children, and a prototype was created to be installed in a kindergarten to monitor its impact. This resulted in a validation framework, that allowed for the discussion of the geodidactic interest, and the economic potential of this Project, as well as the definition of the initial guidelines for assessing their safety.
    2025-06Comunicação em conferência Acesso aberto Ver mais
  • 2025Comunicação em conferência Acesso aberto Ver mais
  • Estudos Geofísicos na Perspetiva de Otimização do Local de uma Captação Geotérmica em S. P. do Sul, Beira Alta, Portugal
    Publication . Ferreira Gomes, L. M.; Ramalho, Elsa; Carvalho, João; Sampaio, José; Francés, Alain Pascal; Represas, Patricia; Marques, Fábio; Morais, Igor; Pereira, Ana Paula Teixeira; Jorge, A.; Gonçalves, Liliana; Gomes, Luís M. Ferreira; Madureira, Pedro; Figueira, João; Pinto, Cláudia; Pinto, Hugo A.S.; Ferreira, Pedro Coelho
    RESUMO: As alterações climáticas têm gerado impactos significativos nos territórios termais, tanto de forma direta, por diminuição, desde logo, da recarga dos sistemas aquíferos, e indiretamente através da intensificação da procura de recursos hídricos subterrâneos e da transformação dos usos do solo, fatores que, em conjunto, podem comprometer a qualidade e a disponibilidade dos recursos hidrominerais e geotérmicos. Uma das medidas para mitigar tais problemas passa por construir captações profundas, menos suscetíveis às influências antrópicas e capazes de garantir águas minerais naturais e/ou recursos geotérmicos com maior estabilidade em termos de qualidade, quantidade e temperatura. Neste contexto, o presente trabalho, discute as principais dificuldades associadas à implementação bem-sucedida deste tipo de obras e apresenta, os resultados preliminares de estudos geofísicos, obtidos no âmbito do projeto ThermEcoWat orientados para a identificação das localizações mais adequadas à implementação de novas captações profundas. Pretende-se, assim, contribuir para o reforço da resiliência dos territórios termais face às pressões associadas às alterações climáticas.
    2025-10Comunicação em conferência Acesso aberto Ver mais
  • Experimental investigation of a novel wave energy floating platform for hybrid wind-wave applications: The OctaPlat
    Publication . Mendonça, Nuno P.; Portillo, Juan C. C.
    ABSTRACT: The work presents the process of model design and testing and the experimental results for the OctaPlat, a new wave energy floating platform, conceived at IST/ULisboa. A physical model was designed on the basis of the Octaplat concept, which comprises five oscillating water columns (OWCs). The physical model design considered only three of the five OWCs due to infrastructure constraints and was made of acrylic material on a scale of 1:100th scale. The experimental campaign comprised free decay tests and tests under both regular and irregular wave conditions. Different power take-off systems for OWCs (impulse air turbines) were approximated through small orifices. Parameters such as RAO, dimensionless pressure, and the capture width ratio (CWR) were determined and analysed to understand the model performance under different conditions. Under regular waves, the results showed that the coupled hydrodynamic interaction between pitch and surge motions mainly affects the chambers located at the outer edges of the platform. Furthermore, the RAOs of the OWCs seem to be influenced by the natural coupled heave frequency, the natural frequencies of OWC1 and OWC3, and possibly the submultiple of the coupled heave natural frequency (k=1.5). Results also show that the different orifice plates considerably affect the CWR and the peaks' frequencies of its maximum values. Under irregular waves considering full-scale values, for a 2.5 m significant wave height, the peak pneumatic power reached 1.6 MW at 0.077 Hz with an equivalent rotor air turbine diameter of 6.3 m (that is, 30 mm orifice diameter) and 1.9 MW at 0.083 Hz with an equivalent rotor air turbine diameter of approximately 4 m (i.e., 20 mm orifice diameter). For a significant wave height of 3.4 m, the 30 mm orifice produced 3.6 MW at 0.077 Hz, while the 20 mm orifice reached 3.8 MW at 0.091 Hz. These results confirm the platform's feasibility for megawatt-scale wave energy conversion, supporting a key claim of this technology. The experimental results were compared with the numerical ones in terms of CWR. Good agreement was found between both, with a coefficient of determination (R^2) of about 0.94, and the relative difference between them was always less than 20%, except for a few peak deviations.
    2025-09Comunicação em conferência Acesso aberto Ver mais
  • From Day-Ahead to a 6-Hour Period-Ahead Market Adapted to the Stochastic Behaviour of Variable Energy Renewable Sources
    Publication . Couto, António; Algarvio, Hugo; Lopes, Fernando; Estanqueiro, Ana; Santos, Gabriel; Lezama, Fernando; Faia, Ricardo; Carvalho, Rui; Vale, Zita
    ABSTRACT: The existing electricity market design challenges the fair and competitive participation of variable renewable energy sources (vRES) due to their weather dependence and limited forecasting accuracy, especially for long-time horizons, as required in the day-ahead market (DAM). These challenges impact market clearing prices and create imbalances, leading to inefficiencies, such as market-splitting events. To enhance the market efficiency and fairness for vRES producers, this work proposes a period-ahead market (PAM) with a 6-hour rolling horizon instead of the traditional 24-hour DAM. A case study of the Iberian electricity market with 2030 energy mix scenarios for Portugal and Spain, demonstrates that, in PAM, vRES producers can reduce wind and solar power forecast errors by over 7 % and 4 %, respectively, when compared with DAM. This leads to a 2 % decrease in electricity prices and an annual reduction of marketsplitting events in 158 hours thus enhancing price harmonization between Portugal and Spain. Additionally, balancing prices also decreased in PAM benefiting the balance responsible parties. The findings highlight that PAM improves the market's efficiency, a key factor in the pathway for the decarbonization of power systems.
    2025-07Comunicação em conferência Acesso aberto Ver mais