REHVA is hosting technical workshops at CLIMA 2025 to advance and share the most reliable knowledge in the HVAC field. To achieve this, REHVA is collaborating with a diverse range of partners:
REHVA workshops with international partners
REHVA - ISHRAE: Indoor climate targets and design requirements in Indian and European education buildings
Poor indoor air quality in schools is a growing concern, with inadequate ventilation, exposure to outdoor pollutants, and thermal discomfort affecting students' well-being and performance. While energy efficiency in buildings has been prioritized in recent years, it has sometimes come at the cost of indoor environmental quality.
This workshop will explore the challenges of balancing energy efficiency with a healthy indoor climate in educational buildings. Participants will discuss strategies to improve IAQ, thermal comfort, and overall environmental conditions while maintaining sustainable energy use.
REHVA - CAHVAC: Healthy Sustainable Buildings in Europe and China
This workshop explores the integration of innovative HVAC technologies and sustainable building solutions, drawing from collaborative research by REHVA and CAHVAC. Presentations will address emerging challenges in energy efficiency, indoor environmental quality, and the health impacts of building designs.
Discussions will focus on multidisciplinary approaches and cutting-edge methodologies for optimizing HVAC systems. Experts will present insights into advanced energy performance assessments, case studies, and strategies to enhance both sustainability and occupant well-being. The session aims to foster knowledge exchange and collaboration among researchers, practitioners, and policymakers.
REHVA - SHASE: Introduction of Joint position document by REHVA (EU) and SHASE (Japan) and ZEB case studies
This workshop presents findings from a joint study by SHASE and REHVA on the definitions and calculation methods for Zero Energy and Zero Emission Buildings. Experts will discuss the latest updates following the 2024 EPBD revision and Japan's ZEB framework.
Key topics include energy performance assessments, results from model energy simulations in three European climates for ZEB apartments, and evaluations of office buildings in Japan. Additionally, the workshop will explore HVAC system comparisons, analyzing thermal comfort, air quality, and energy performance to determine the most efficient solutions for ZEBs.
REHVA workshop on IEQ in EPBD
Long term assessment by simulation or monitoring, labels and regulation
The 2024 recast of the Energy Performance of Buildings Directive introduces significant new requirements for indoor environmental quality, setting a new standard for national regulations. This workshop will explore key changes, including the principle of optimal IEQ, the establishment of national IEQ requirements, and the mandatory integration of indoor air quality monitoring and regulation devices in new non-residential buildings.
Discussions will focus on the growing need for demand-controlled ventilation systems, which will become essential from 2028/2030, and the challenges of ensuring their long-term performance. With continuous monitoring generating vast amounts of data, we will examine tools and methodologies for assessing IAQ and thermal comfort, optimizing system operation, and improving occupant well-being.
Workshops by EU Projects
Energate & Moderate: Facilitating energy efficiency in buildings: smart solutions for real estate, energy service companies and financiers
The building sector is a significant contributor to global energy consum-ption and greenhouse gas emissions, accounting for approximately 36% of energy use worldwide. Despite the vast potential for energy efficiency improvements in building renovations, progress remains limited. Challenges include high upfront costs, complex regulatory requirements, and often lengthy return-on-investment periods, which deter many property owners. Additionally, awareness and access to information about available financial incentives and technical solutions are frequently insufficient. Overcoming these barriers requires streamlined financing options, more accessible policy frameworks, and broader awareness of the long-term cost savings and environmental benefits of energy-efficient renovations.
Given the urgent need for energy efficiency improvements to meet climate goals, it is crucial to harness new and innovative technologies that make buildings more sustainable, smarter, and cost-effective.
This workshop will be an opportunity for the MODERATE and ENERGATE projects to share insights, technologies, and best practices, as well as to explore synergies. The event will serve as a platform for stakeholders to discuss the barriers, opportunities, and actionable strategies for advancing energy efficiency in buildings using smart technology and innovative financial models.
Funded by the European Union
SmartSquare: Advancing SRI Implementation: Connecting EPBD provisions and regional adoption with project outcomes
The workshop will focus on discussing the project’s Key Exploitable Results (KERs) and their contribution to the Smart Readiness Indicator (SRI) implementation. It will connect the project's outcomes with EU plans and explore the necessary steps to advance SRI adoption at regional and national levels. This will be supported by real case studies, showcasing the impact and opportunities from technical and market perspectives, particularly in design consulting and support services.
Funded by the European Union
Next Gen EPC cluster (tunES,SmarterEPC and iEPB projects): Practical Pathways to EPBD IV Implementation
This workshop, convened by the EPB Center and the Next Gen EPC cluster of EU funded project, explores how innovative policy implementation approaches and digital & technical solutions are facilitating practical EPBD IV implementation across the European Union. The session brings together representatives of the European Commission (DG ENER, CINEA), national authorities (e.g., ENEA Italy), and key EU funded projects, tunES, SmarterEPC and iEPB, to showcase how a new wave of EPC/SRI tools, data models, and auditing methods are enabling convergence with the EPBD IV provisions and guidance. Each project contributes with a unique technical focus: from innovative policy training, implementation and compliance tools (tunES) to harmonised onsite audits and joint EPC+SRI certificates (SmarterEPC), and to integrated data structures and calculation engines (iEPB).
The workshop will conclude with an interactive panel discussion, providing a space for critical insights and suggestions from EU officials, lessons learned from the EU project teams and the broader HVAC and building performance community. By weaving together policy, practice, and innovation, this session aims to help stakeholders navigate the EPBD IV rollout with actionable insights and collaborative pathways forward.
tunES, SmarterEPC and iEPB projects have received funding from the European Union’s LIFE Clean Energy Transition subprogramme.
