There are 861 results.
IEA DSM Task 24: Behaviour Change in DSM – Helping the Behaviour Changers (Working period 2015-2017)
More than 20% of the use of energy for small consumers can be saved by changed behaviours. Past efforts to tap these potentials through DSM-interventions are not effective. The Task 24 dealt with the most important actors groups as well as tools, which support the behaviour changers in their daily work. In addition, an assessment method for DSM-interventions in the frame of the Austrian law on energy efficiency was elaborated.
This task aims at the identification and development of effective business models for energy services, which lead to a sustainable growth of energy efficiency services. Therefore the various national framework conditions and contexts have been analysed, that are necessary for a successful development of such business models. Examples for start-ups and entrepreneurs have been discussed, their challenges and deficits as well as success factors in terms of capabilities/skills identified and out of these findings a web based analysis tool been developed.
Demand Side Management (DSM) refers to the implementation of energy efficiency improvements and service management measures on the side of end users for optimising energy systems overall. This IEA-research programme pushes development of suitable technologies, applications and methods for end users and thus facilitates their preferential adoption in all political decisions on energy policy.
IEA EBC Annex 55: Reliability of Energy Efficient Building Retrofitting - Probability Assessment of Performance & Cost (RAP-RETRO)
The scope of the project is to develop and provide decision support data and tools for energy retrofitting measures. The tools will be based on probabilistic methodologies for prediction of energy use, life cycle cost and functional performance. The impact of uncertainty on the performance and costs will be considered. Methods based on probability give powerful tools that can provide us with reliable ranges for the outcome.
The objective of the IEA EBC Annex 56 project was to develop a methodology for cost effective energy and carbon emissions optimization in building renovation. Within the frame of the project this methodology was developed and furthermore also innovative renovation projects were collected and analyzed, which should perform as best practice examples.
The IEA-EBC Annex 57 evaluated methods of construction-related embodied environmental impacts and embodied energy and related international best practice projects and their approaches. Based on these findings, methodological guidelines as well as measures for their application at the international level and for the planning of buildings - with lower embodied energy and embodied greenhouse gas emissions - were derived.
IEA EBC Annex 60: New generation computational tools for building and community energy systems based on the Modelica and Functional Mockup Interface standards
The objective was to develop and demonstrate next-generation computational tools that allow building and community energy grids to be designed and operated as integrated systems. The work conducted in Annex 60 has helped to share, further develop and deploy free open-source contributions of previously uncoordinated activities in modeling and simulation, based on the Modelica and Functional Mockup Interface standards.
Target of IEA EBC Annex 61 was the development of technical and economical concepts for Deep Energy Retrofit of public buildings. To force high-quality and energy efficient retrofit, besides the enhancement and dissemination of innovative, technical retrofit concepts, the focus was in the development of innovative business models (energy-contracting).
The main goal of the Annex 62 is to make ventilative cooling an attractive and energy efficient cooling solution to avoid overheating in buildings. Ventilation is already present in buildings through mechanical and/or natural systems and it can remove excess heat gains as well as increase air velocities to widen the thermal comfort range. The results from the Annex facilitate better possibilities for both design purposes and for energy performance calculation.
To reduce CO2 emissions in cities, an overall understanding of energy conversion processes is necessary, which also takes temperature levels into account. This is particularly important when alternative heat sources such as waste heat, ambient heat, solar and geothermal energy are to be used, as these often have a low temperature level, i.e. a low exergy content. Accordingly, urban energy systems are analysed and optimised within the framework of the IEA EBC Annex 64 with the help of the exergy approach.
Given the considerable implications of occupants' presence and behavior for buildings’ performance, IEA EBC Annex 66 aims to set up a standard occupant behavior definition platform, establish a quantitative simulation methodology to model occupant behavior in buildings, and understand the influence of occupant behavior on building energy use and the indoor environment.
Adaptation of energy consumption of buildings and building clusters to future energy generation from renewable energy sources intended for growth is rational and mandatory. The objective of this Annex is to analyze and characterize the related future role of „energy flexibility“ of buildings, to identify potentials, and to offer and test control strategies.
It is the aim of Annex 68 to gather and extend the scientific basis and data for a coupled calculation and evaluation of indoor air quality and energy efficiency of residential buildings. Detailed pollutant models will be integrated in energy building simulation to derive design and operational guidelines for energy-efficient buildings.
Annex 70 will focus on identifying, reviewing, evaluating and producing leading edge methods for studying and modelling the building stock including: data collection techniques on energy use, building features and building morphology; analysis of smart meter energy data, building systems, and user behaviour; and modelling energy demand among sub-national and national building stocks.
The requirements on building envelope and on building technology are steadily increasing. There is a lack of monitoring and analysis methods to control the quality of the built implementation. The objective is to provide methods for an on-site (in situ) assessment of the actual energy performance. Based on the results from EBC Annex 58, this Annex takes the step towards practicable characterization procedures.
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.
Clusters of public buildings like hospitals or university campuses often include critical infrastructure which relies on sufficient energy supply. The Annex aims at developing tools for the planning process of resilient, efficient and low carbon energy systems for such building clusters.
IEA EBC Annex 75: Cost-effective Building Renovation at District Level Combining Energy Efficiency & Renewables
For the transformation of existing buildings to nearly zero energy buildings with low greenhouse gas emissions it is important to know which strategy is most cost efficient to reduce primary energy demand and greenhouse gas emissions of the buildings. Especially the right balance between renewable energy measures und energy efficiency measures is of high importance. To give an answer to this topic is goal of this project.
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.
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.