EESAP14 PRESENTATION_JM Hidalgo et al.pdf
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The document discusses housing renovation strategies and goals in the Basque Country, highlighting a recent 1.5% renovation rate in 2022 and the significant impact of grant programs. It identifies barriers to achieving the European target of 3% renovation, including administrative challenges and a shortage of skilled workers, while providing recommendations for both public and private sectors to accelerate the renovation process. An exploratory workshop engaged stakeholders to evaluate the situation and promote trust in the renovation sector to support future improvements.
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Puedes ver todo el artículo en abierto:
https://www.mdpi.com/3158484
Conclusiones:
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2023-04-20 Zero Plana - Tipologías Estrategias Rehabilitacion_JM Hidalgo AT-LCCEJuan Maria Hidalgo BetanzosEl documento presenta estrategias para la rehabilitación energética del parque edificado en el País Vasco, enfocándose en la descarbonización, el uso de energías renovables y la mejora de la eficiencia energética. Se analiza un total de 7700 viviendas, proponiendo diversas medidas de rehabilitación y auditorías energéticas para optimizar el consumo y reducir costos. Además, se incluyen metodologías y ejemplos prácticos de implementación de dichas estrategias a largo plazo.
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The AI tool performed well in generating broad and diverse recommendations, often surpassing conventional internet searches in scope and accessibility. This capacity to provide initial insights quickly can enhance understanding and support early-stage planning in energy renovation projects. However, its limitations include medium-quality responses in general and the need for an experienced user to obtain better responses, as proven by the Q2 and Q3 preparation and responses. In addition, inconsistent citation of references and reliance on outdated or public information are present in many answers. These factors highlight the necessity of building renovation experts’ involvement to verify, refine, and tailor AI-generated recommendations to each specific building context. In any case, the iterations evidence that AI’s response quality may still be unpredictable in complex scenarios.
The second stage, conducted with recent versions and other AI tools in late 2024, found promising results that can apply more quantitative calculations to improve the original trend of 2023 AI chatbots. For future studies, the instructions given and, in particular, the definition of the prompt should be reviewed to fulfil AI chatbots’ potential.
During this study, the given building renovation recommendations were more focused on passive improvements (thermal envelope, airtightness, and ventilation) and less focused on active improvements, where they mainly mentioned solutions like PV panels and heat pump devices. Further studies would be required to continue assessing the validity of these recommendations and the AI’s given calculations.
Overall, while ChatGPT can complement building renovation expert efforts, it cannot yet replace the nuanced judgment and adaptability of human professionals in the challenging field of building energy renovation.
2023-04-20 Zero Plana - Tipologías Estrategias Rehabilitacion_JM Hidalgo AT-LCCEJuan Maria Hidalgo BetanzosEl documento presenta estrategias para la rehabilitación energética del parque edificado en el País Vasco, enfocándose en la descarbonización, el uso de energías renovables y la mejora de la eficiencia energética. Se analiza un total de 7700 viviendas, proponiendo diversas medidas de rehabilitación y auditorías energéticas para optimizar el consumo y reducir costos. Además, se incluyen metodologías y ejemplos prácticos de implementación de dichas estrategias a largo plazo.
EESA TT Workshop EE8 Net Zero Energy Clusters NZEC
EESA TT Workshop EE8 Net Zero Energy Clusters NZECJuan Maria Hidalgo BetanzosThe document outlines a workshop by the Sustainable Buildings Think Tank focused on energy efficiency and net zero energy clustering, held in Madrid from January 23-27, 2023. It discusses various strategies for enhancing building performance, such as active technologies and digital innovations, while emphasizing collaboration among stakeholders to achieve energy flexibility. Additionally, it highlights the importance of renewable energy sources, smart management systems, and adapting building designs for improved energy efficiency at both individual and cluster levels.
Confort térmico y riesgo de sobrecalentamiento en viviendas plurifamiliares E...Juan Maria Hidalgo BetanzosEl documento evalúa el confort térmico y el riesgo de sobrecalentamiento en viviendas colectivas en Madrid mediante simulaciones dinámicas. Se comparan dos configuraciones de un edificio real, analizando aspectos como el consumo energético, temperaturas interiores y medidas de confort térmico. Los resultados muestran mejoras significativas en el confort y eficiencia energética del edificio mejorado en comparación con el base.
Riesgo Sobrecalentamiento EECN multifamiliares - Conferencia Passivhaus 2019 ...Juan Maria Hidalgo BetanzosEl documento analiza el confort térmico y el riesgo de sobrecalentamiento en edificios de viviendas colectivas en un clima mediterráneo-continental, utilizando simulaciones para comparar dos diseños de edificios. Se evaluaron configuraciones de fachada y sistemas de ventilación, mostrando que las mejoras pueden reducir significativamente el consumo de energía y mejorar el confort térmico. Los resultados indican un aumento en el confort y una disminución de horas de disconfort en los edificios mejorados respecto a las condiciones estándar.
Aspectos energeticos programa RENOVE 2018 - Area Térmica del LCCE-GVJuan Maria Hidalgo BetanzosEl documento detalla los aspectos energéticos del Plan Renove 2018, enfocado en mejorar la eficiencia energética en la edificación mediante requisitos para la obtención de certificados de eficiencia energética. Se establecen condiciones para intervenciones en edificios, incluyendo mejoras pasivas y activas, control de calidad de obra y monitorización de consumo energético. Además, se menciona la evolución de la normativa y nuevas exigencias para la rehabilitación de edificios en el contexto europeo.
Medidas para promover la EE frente a la Pobreza energética LCCE-GVJuan Maria Hidalgo BetanzosEste documento presenta medidas para promover la eficiencia energética en edificios existentes y describe cómo serán los edificios del futuro. Se describen medidas para mejorar la eficiencia energética en edificios existentes como cultura energética, micro reformas, mejora de ventanas, aislamiento e instalaciones. También se explica que los edificios del futuro deberán ser Edificios de Consumo de Energía Casi Nulo y cumplir objetivos europeos para 2030 y 2050, reduciendo drásticamente el consumo energético.
Nuevos retos en Eficiencia Energética: se acercan los requerimientos y normat...Juan Maria Hidalgo BetanzosEste documento resume los nuevos retos en eficiencia energética en Europa y España. Presenta los objetivos de reducción de emisiones para 2020, 2030 y 2050. Explica la definición de edificios de consumo de energía casi nulo y los indicadores propuestos para España. Resalta la importancia del control de calidad en obra para cumplir los requisitos. Muestra un ejemplo de edificio calificado A+ en Vitoria-Gasteiz que cumple los objetivos de bajas emisiones y uso de energías renovables.
Borrador CTE HS 2016 - ComparativaJuan Maria Hidalgo BetanzosEl documento presenta un borrador de modificaciones sobre caudales de referencia de CO2, estableciendo niveles medios anuales por debajo de 900 ppm y acumulados por encima de 1600 ppm con límites de tiempo. Se indica que los caudales generales han sido reducidos y se mantiene un caudal variable mínimo de 1.5 l/s. El autor, Juan María Hidalgo Betanzos, es arquitecto e investigador asociado al área térmica del LCCE-GV.
convocatoria sostenibilidadJuan Maria Hidalgo BetanzosEste documento anuncia una reunión para presentar la nueva Comisión de Sostenibilidad del COAVN-GI. La comisión tiene como objetivo canalizar las inquietudes sobre sostenibilidad de los profesionales asociados y encontrar formas prácticas de ayudar a crear un futuro más sostenible en Gipuzkoa. La reunión se llevará a cabo el 17 de febrero para debatir las principales ideas de la comisión y unir fuerzas entre los asociados comprometidos con la sostenibilidad.
Bioclimatic Houses: a visual summary of this sustainable & healthy buildings ...
Bioclimatic Houses: a visual summary of this sustainable & healthy buildings ...Juan Maria Hidalgo BetanzosThe document discusses bioclimatic architecture, emphasizing its historical roots and benefits such as reduced energy use and increased comfort. It outlines key principles including solar design, comfort, and the use of natural materials, while addressing common questions about its efficacy and adoption. Additionally, it highlights lessons learned and advocates for bioclimatic design as a sustainable alternative to conventional building methods.
Overheating Assessment of a Passive House Case Study in Spain
Overheating Assessment of a Passive House Case Study in SpainJuan Maria Hidalgo BetanzosThe document summarizes an overheating assessment of a Passive House case study in Spain. Monitoring was conducted over a year to evaluate overheating risks using several methods: ISO 7730 found 10% of hours too hot; EN 15251 found 0.2% too hot; CIBSE TM52 found no exceedances; and Passivhaus standard found 11.8% of hours over 25C, not meeting its criteria. While conclusions varied, all methods provided useful insights. Recommendations include evaluating overheating separately in different zones, improving shading, and considering occupancy variations in future assessments.
Termografia y rehabilitaciónJuan Maria Hidalgo BetanzosEl documento aborda la utilización de la termografía en la rehabilitación de edificios, destacando su capacidad para detectar irregularidades, problemas de aislamiento y defectos constructivos sin causar molestias a los habitantes. Se exploran errores comunes en mediciones, la importancia de la emisividad y las condiciones climáticas adecuadas para su aplicación. Finalmente, se presentan casos prácticos y se menciona la normativa europea relevante para asegurar la calidad en estos estudios.
Rehabilitacion de edificios. Termografía aplicada. Juan Maria HidalgoJuan Maria Hidalgo BetanzosEl documento presenta los beneficios de la termografía en la rehabilitación de edificios, destacando su capacidad para detectar irregularidades térmicas, errores de aislamiento y problemas de construcción. También se analizan errores comunes en la medición y se introducen las normativas europeas relevantes para el estudio de la eficiencia energética en edificios. Se subrayan procedimientos de evaluación y conclusiones sobre la identificación de defectos constructivos basados en datos termográficos.
Presentacion corta - JM Hidalgo et al - ChatGPT Ayudando a Rehabiltiacion Ene...
Presentacion corta - JM Hidalgo et al - ChatGPT Ayudando a Rehabiltiacion Ene...Juan Maria Hidalgo Betanzos
2023-04-20 Zero Plana - Tipologías Estrategias Rehabilitacion_JM Hidalgo AT-LCCEJuan Maria Hidalgo Betanzos
EESA TT Workshop EE8 Net Zero Energy Clusters NZEC
EESA TT Workshop EE8 Net Zero Energy Clusters NZECJuan Maria Hidalgo Betanzos
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- 2. Department of Housing, Basque Government termica@euskadi.eus www.euskadi.eus/lcce +34 945 011 800 linkedin.com/at-lcce @AT_LCCE https://www.ehu.eus/es/web/enedi
- 7. Parámetro Objetivo Min % P.Proteg. y lim. ayuda vivienda Objetivo Medio % P.Proteg. y lim. ayuda vivienda Objetivo Maximo % P.Proteg. y lim. ayuda vivienda Exigencias CTE Aplicación del DB-HE1 (envolvente, Ulim, kg), DB-HE0 (consumos CEPNR y CEPT) y del DB-HE4 (contribución renovable ACS), “Criterio de flexibilidad - Env. EECN” Reducción Demanda Energética EDIFICIOS y BARRIOS: 25% (zonas C) y 35% (zonas D - E) VIVIENDAS INDIVIDUALES: 7% o 30% de reducción CEPNR (todas las zonas) Prog 1: REHAB BARRIOS* Reducción CEPNR 30 – 45 % 40% 8.100 €/v 45 - 60 % 65% 14.500 €/v > 60 % 80 % 21.400 €/v Prog 3: REHAB EDIFICIOS* Reducción CEPNR 30 – 45 % 40% 6.300 €/v 45 - 60 % 65% 11.600 €/v > 60 % 80 % 18.800 €/v Prog 4: REHAB VIVIENDAS 30% 40% 3.000 € -
- 9. • Exploratory workshop, with all the actors to evaluate the building renovation difficulties, in person and online. o Analysis of the current strategy for residential building renovations, grant numbers, and future goals. o Building renovation examples in literature and quality control of the works o Round table 1 to analyze NG grants management, focused on the public sector. o Round table 2 to analyze housing renovation situation and NG grants, focused on the private sector. o Online survey to gather wider views and numerical assessment of the situation and NG grants.
- 10. • 93 people in person and 43 answers online, 136 in total
- 14. • The housing renovation in the Basque Country improved very significantly in recent years: achieved 1.5% renovation in 2022. • Promoting the sector’s trust with a decade of renovation policies and grants from the Department of Housing. • What barriers hinder housing renovations from reaching the European 3% goal: • Main difficulties: administrative paperwork and the decision-making processes of communities of owners. • Easier aspects: technical documents for project and construction, and the building renovation legal requirements (insulation, savings,…). • All the participants say the building renovation sector is not ready for the renovation wave and to double the renovation ratio, issues: • The renovation grants short deadlines. • Lack of skilled construction workers.
- 15. • PUBLIC side recommendations to speed up the renovation ratio: • Provide a stable background (longer grants programs) • Simplify the administrative side of grants • Offer more public support with transparent information and templates (company selection for example) • More education programs about construction training. • PRIVATE side recommendations to speed up the renovation ratio: • Communities of owners: should acknowledge the importance of experienced professionals and building managers to facilitate the decision-making process, these decisions should consider wider technical aspects rather than the price alone. • Construction companies: should improve the working conditions and salaries to attract young people to this sector.