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IEA EBC Annex 72: Assessing life cycle related environmental impacts caused by buildings
The construction sector has great potential to reduce its energy consumption and the associated environmental impacts. The IEA EBC Annex 72 therefore focuses on the harmonization of methods for the assessment of construction-specific and operational environmental impacts (primary energy requirements, greenhouse gas emissions and other indicators) throughout the life cycle of buildings.
IEA EBC Annex 73: Towards Net Zero Energy Resilient Public Communities
Public buildings such as hospitals and educational institutions often house critical infrastructure that depends on sufficient energy and resource supply. The aim of the annex was to develop tools for the planning process of resilient, efficient and low-emission energy systems for such building clusters.
IEA EBC Annex 75: Cost-effective Building Renovation at District Level Combining Energy Efficiency & Renewables
For the conversion of existing buildings into low(st) energy buildings with low greenhouse gas emissions, it is important to know which strategies are most cost-effective to reduce emissions and primary energy consumption of the buildings. In particular, it is important to find the right balance between energy efficiency measures and renewable energy measures. This question is addressed in this project.
IEA EBC Annex 79: Occupant-Centric Building Design and Operation
The IEA EBC Annex 79 aims to provide new insights into comfort-related occupant behaviour in buildings and its impact on building energy performance as well as occupant-centric building design and operation.
IEA EBC Annex 80: Resilient Cooling for Residential and Small Non-Residential Buildings
In the project cost and energy-efficient and non-fossil solutions for cooling and ensuring summer suitability are systematically analyzed and further developed. As part of the international R&D co-operation, fragmented knowledge is bundled and made available to the Austrian construction and mechanical engineering industry. Austrian expertise in climate-sensitive building optimization is disseminated internationally through leading participation in this international research.
IEA EBC Annex 81: Data-Driven Smart Buildings
The latest developments in digitization have the potential to significantly reduce the costs of building operations. The annex is intended to improve access to low-cost, high-quality data from buildings and to support the development of data-driven energy efficiency applications and analyses. This enables the optimization of building controls in real time and offers energy efficiency data and decision support for building managers.
IEA EBC Annex 82: Energy flexible buildings towards resilient low carbon energy systems
The aim of the Annex is to gain knowledge about the energy flexibility services that buildings and clusters of buildings may deliver to different types of energy networks. The project increases the knowledge about the barriers and motivation for the stakeholders. Their constructive involvement is a key for making building energy flexibility a value for the resilience of future energy networks.
IEA EBC Annex 83 - Positive Energy Districts
A positive energy district (PED) is an urban area/neighbourhood that is able to generate more energy than it consumes and is agile/flexible enough to respond to energy market fluctuations. This is where the IEA-Annex 83 and commissioned leading Austrian research institutions come in to collect, systematise, synthesise and process the knowledge and experience of the international scientific community on PEDs in a form that is understandable for practitioners.
IEA EBC Annex 84: Demand Management of Buildings in Thermal Networks
The concept of demand-side management (DSM) in buildings to reduce peak loads in the grid is well established in the power sector. The same concept can be applied to shift thermal loads in buildings connected to thermal networks. This project addresses the topic of demand response in buildings, focusing on the collection of case studies, technologies and collaboration models.
IEA EBC Annex 86: Energy Efficient Indoor Air Quality Management in Residential Buildings
Residential buildings should be able to provide good indoor air quality while ensuring high comfort and low energy use at lowest possible cost. This project will develop methods and compile data to evaluate different indoor air quality management strategies. Furthermore, innovative control strategies will be evaluated and tested in order to develop concrete recommendations for possible implementations of innovative ventilation systems for residential buildings.
IEA EBC Annex 89: Ways to Implement Net-zero Whole Life Carbon Buildings
IEA EBC Annex 89 focuses on the pathways and actions needed by various stakeholders and decision-makers to implement whole life cycle based net-zero greenhouse gas (GHG) emissions from buildings in policy and practice. Annex 89 will support key stakeholders and decision-makers in developing and implementing effective Paris-goal compatible schemes and solutions to achieve NetZ-WLC buildings at multiple scales.
IEA EBC Annex 91: Open BIM for Energy Efficient Buildings
Building Information Modeling (BIM) is considered a key technology for optimising the overall energy performance of buildings. The project lays the foundations for OpenBIM tools to include the assessment and optimisation of the energy efficiency of buildings in the future, for Open BIM processes and data models to be increasingly harmonised and standardised, and thus for smaller construction companies to have the opportunity to work on complex BIM projects in the future.
IEA EBC Working Group on Cities and Communities (WGCC)
The WGCC enables information and experience exchange, the identification of bottlenecks that lead to specific research questions and a direct communication with cities on their needs, to enable them to transform their energy systems. The working group is a joint initiative across several TCPs with in-depth participation of technical and non-technical (external) experts.
IEA ES Annex 35: Flexible Sector Coupling through Energy Storage Implementation
The aim of the IEA ES Annex 35 is to investigate and evaluate the potential of different storage technologies and configurations for the application to the sector coupling of electricity, heat and mobility sector and to draft recommendations for politics, research and industry based on the results.
IEA ES Annex 39: Large Thermal Energy Storages for District Heating
Large-scale heat storage systems will play a central role in increasing the necessary flexibility of district heating networks and enable the further expansion of renewable energies. The main objective of the Annex is to determine the aspects that are important in planning, decision-making and implementing large thermal energy storages for integration into district heating systems and for industrial processes, given the boundary conditions for different locations and different system configurations.
IEA ES Annex 49: Low Exergy Systems for High-Performance Buildings and Communities
The objective of Annex 49 is the development of approaches for reducing the exergy demand of buildings, so as to reduce the CO2 emissions of the building stock and support structures for sustainable and reliable energy systems in the building sector. To achieve the objectives of Annex 49, the following activities have been carried out:Application of exergy analysis and providing tools, guidelines, best-practice examples and background information for planners and decision makers in the fields of construction, energy and politics Support of cost-efficient low-energy/exergy measures for renovation and new building taking into account both the residential and the service sector Promotion of exergy-related performance analysis of buildings, particularly from the perspectives of communities / regions
IEA ES Annex 50: Prefab Systems for Low Energy/High Comfort Building Renewal
Development of integrated concepts for multi-storey buildings, which enable renovations of buildings with high energy efficiency at good user acceptance during the realisation phase as well as afterwards (comfort, affordability). Relevant components: integrated solutions of roof and façade with high rate of pre-fabrication, the possibility of integrating the energy façade/roofs and energy distribution and supply.
IEA ES Task 36: Carnot Batteries
Carnot Batteries are an emerging technology for the inexpensive and site-independent storage of electric energy at medium to large scale (> 1.000 MWh). The technology transforms electricity into thermal energy, stores it in inexpensive media such as water or molten salt and transforms the thermal energy back to electricity as required. Carnot Batteries have the potential to solve the global storage problem of renewable electricity in a more economic and ecologic way than conventional batteries.
IEA ES Task 41: Economics of Energy Storage
What is the value of energy storage and how can it be quantified? How can the benefits and value of energy storage be translated into promising business models? The Task will conduct a coordinated methodological assessment of the economic viability of energy storage (electrical, thermal, and chemical) in applications relevant to the energy system. This will be used to derive preferred conditions for energy storage configurations.
IEA ES Task 43: Storage for renewables and flexibility through standardized use of building mass
Thermal building mass activation uses building masses to condition interior spaces, but can also function as energy storage through targeted overheating/undercooling. This storage potential can be used for local and grid-connected renewable thermal and electrical energy (Power2Heat). The project develops new content on the construction, control and business models of such storages and disseminates it as guidelines, data and on the basis of best-practice objects that have been implemented.