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IEA EBC Annex 67: Energy Flexible Buildings (working period 2015 - 2019)
The project increased the knowledge on building Energy Flexibility and the regarding potential buildings can provide to energy grids. The critical aspects and possible solutions to utilize the Energy Flexibility that buildings can provide were identified and a report of the “Principles of Energy Flexible Buildings” will be published in 2019.
IEA EBC Annex 68: Indoor Air Quality Design and Control in Low Energy Residential Buildings
In this project, the scientific basis and data for a coupled calculation and evaluation of indoor air quality and energy efficiency of residential buildings were developed. Assessment metrics and detailed air pollutant models were developed and integrated into the building simulation to derive guidance for the planning and operation of energy-efficient residential buildings.
IEA EBC Annex 70: Building Energy Epidemiology: Analysis of Real Building Energy Use at Scale
Within the framework of the IEA-EBC Annex 70, causes of deviations between calculated and actual energy consumption in buildings were empirically investigated and requirements for data quality, characteristics and security were developed. Furthermore, recommendations were developed regarding the use of internationally uniform standards and methods for data collection, processing and evaluation.
IEA EBC Annex 71: Building Energy Performance Assessment Based on In-situ Measurements
The requirements on building envelope and on building technology are steadily increasing. There is a lack of measurement and analysis methods to control the quality of the built implementation and to optimize the building operation. This project developed a methodological basis to enable an in-situ evaluation of the actual energy performance and building operation. For this purpose, it investigated methods to generate data-driven building models favouring the use of already available on-board data.
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. Therefore. the IEA EBC Annex 72 focuses on the harmonization of methods for the assessment of construction-specific and operational environmental impacts (primary energy requirements, greenhouse gas emissions and otherindicators) 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
The rapidly increasing cooling demand for buildings - internationally as well as in Austria - requires further development and application of low energy and low carbon cooling solutions on a large scale. The Annex 80 is meeting this challenge boosting the development and implementation of appropriate cooling solutions by transferring knowledge and coordinating international research endeavours.
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