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Task 58 - Material and Component Development for Thermal Energy Storage
Task 57 - Solar Standards and Certification
Task 56 - Building Integrated Solar Envelope Systems for HVAC and Lighting
Task 55 - Towards the Integration of Large SHC Systems into District Heating and Cooling (DHC) Network
Task 54 - Price Reduction of Solar Thermal Systems
Task 53 - New Generation Solar Cooling and Heating
Task 52 - Solar Energy and Energy Economics in Urban Environments
Task 51 - Solar Energy in Urban Planning
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Position Paper: Net Zero Energy Solar Buildings
IEA SHC Task 40: Position Paper
June 2015 - PDF 0.35MB
The aim of this Position Paper is to present the current status of the various research and pathways in designing and constructing net-zero energy buildings (NetZEBs). It is written to provide general information on this topic to policy and decision makers who may be in positions to facilitate the market uptake of NetZEB practices. The information therein draws from the work of the 82 National Experts from the 19 member countries that participated in the Task/Annex and have contributed so much knowledge to advancing this field.
Task 40: What Market Adoption of NetZEBs Need
May 2015 - PDF 0.08MB
Editor: Pamela Murphy
To mainstream market adoption of NetZEBs, what is needed is a wide consensus on clear definitions and agreement on the measures of building performance that could inform “zero energy” building policies, programs and industry building practices, as well as design tools, case studies and demonstrations that would support industry adoption.
Modelling, Design, and Optimization of Net-Zero Energy Buildings
By: Andreas Athienitis
Editor: William O'Brien
Building energy design is currently going through a period of major changes. One key factor of this is the adoption of net-zero energy as a long term goal for new buildings in most developed countries. To achieve this goal a lot of research is needed to accumulate knowledge and to utilize it in practical applications. In this book, accomplished international experts present advanced modeling techniques as well as in-depth case studies in order to aid designers in optimally using simulation tools for net-zero energy building design. The strategies and technologies discussed in this book are, however, also applicable for the design of energy-plus buildings. This book was facilitated by International Energy Agency?s Solar Heating and Cooling (SHC) Programme and the Energy in Buildings and Communities (EBC) Programme through the joint SHC Task 40/EBC Annex 52: Towards Net Zero Energy Solar Buildings R&D collaboration.
Development of an energy evaluation methodology to make multiplepredictions of the HVAC&R system energy demand for office buildings
May 2014 - PDF 4.88MB
By: Jinkyun Choa, Seungho Shina, Jonghurn Kimb, Hiki Hong
HVAC&R systems are the most energy consuming building services, representing approximately half of the final energy use in the building sector. Despite their significant energy use, there is a lack of a consistent and homogeneous framework to efficiently guide research, mainly due to the complexity and variety of HVAC&R systems, but also to insufficient rigor in their energy analysis. Quantifying the energy consumption characteristics of HVAC&R system is complicated, because the energy savings provided by this system depend on various factors. This research evaluates energy consumption characteristics of HVAC&R systems, with the aim of establishing a common idea for the analysis of building energy efficiency. The objective of this study is to develop an energy evaluation methodology and a simple simulation program that may be used by engineers and designers to assess the effectiveness and economic benefits of HVAC&R systems. Our approach deals with the concept of HVAC&R system energy use aggregation levels that are composed of subsystems. To carry out a techno-economical estimation of HVAC&R systems considering different types of subsystems, the matrix combination analyzed, and a total of 960 HVAC&R systems can be implemented for a large-scale office building. The methodology of energy analysis that was carried out in this study highlights how to plan and design toward utilizing the most effective HVAC&R systems.
Solution Sets and Net Zero Energy Buildings: A review of 30 Net ZEBs case studies worldwide
A report of Subtask C
May 2014 - PDF 11.74MB
By: François Garde and Michael Donn
This technical report gives a review of 30 fully documented net ZEBs case studies that have been
identified by the Sub Task C participants. It reports a compilation of all technical and non-technical
information of the 30 case studies that formed the foundation on which the analysis of Volume 3 of the
Source Book was based.
Task 40 Highlights 2013
Towards Net--Zero Energy Solar Buildings
February 2014 - PDF 0.18MB
Energy use in buildings worldwide accounts for over 40% of primary energy use and 24% of greenhouse gas emissions. Several International Energy Agency (IEA) countries have adopted a vision of so-called ‘net zero energy buildings’ as a longterm goal of their energy policies. However, what is missing is a clear definition and international agreement on the measures of building performance that could inform 'zero energy’ building policies, programs and industry adoption around the world.
Evaluation Tool for Net Zero Energy Buildings: Application on Office Buildings
March 2013 - PDF 0.29MB
By: Annamaria Belleri, Federico Noris, Ulrich Filippi Oberegger, Roberto Lollini
Within the research project “IEA SHC Task 40 – ECBCS Annex 52: Towards Net Zero Energy Solar Buildings” an excel-based tool was developed to assess balance, operating costs and load match index for predefined selected Net ZEB definitions . The tool can be of assistance for different stakeholders, including building designers (evaluation of building design solutions with respect to different Net ZEB definitions), energy managers (assess the balance in monitored buildings) and policy makers (assist in the upcoming implementation process of Net ZEBs within the national normative framework).
Task 40 Highlights 2012
January 2013 - PDF 0.54MB
Energy use in buildings worldwide accounts for over 40% of primary energy use and 24% of greenhouse gas emissions. Several International Energy Agency (IEA) countries have adopted a vision of so-called ‘net zero energy buildings’ as a long-term goal of their energy policies. However, what is missing is a clear definition and international agreement on the measures of building performance that could inform ‘zero energy’ building policies, programs and industry adoption around the world.
Net Zero Energy Building
Living and Working with an Equalised Energy Balance
By: Karsten Voss, Eike Musall
Strategies and experiences from the perspective of planners and users: Net zero energy buildings, equilibrium buildings or carbon neutral cities – depending on location and the reasons for making the calculation, the numbers are run differently. The variety of terms in use indicates that a scientific method is still lacking – which is a problem not just in regard to international ommunication, but also with respect to planning processes as a response to energy challenges. The clarification and meaning of the most important terms in use is extremely important for their implementation.
ISBN: ISBN 978-3-920034-80-5
- 49.00 EUR
Montreal PhD Summer Workshop on Net-Zero Energy Solar Buildings: Theory, Modelling, and Design
June 20-25, 2011
June 2011 - PDF 1.31MB
By: Yichao Chen
This the actual program for the Montreal PhD Summer Workshop on Net-Zero Energy Solar Buildings: Theory, Modelling, and Design. The program includes welcome, workshop schedule, participant list and speaker bios.
By: Karsten Voss and Eike Musall
Vol.1 Net Zero Energy source book in German-language
Towards Net Zero Energy
ECBCS Annex 52 Factsheet
2010 - PDF 3.49MB
The objectives of the project ‘Towards Net Zero Energy Solar Buildings’ are to study current net zero, near net zero and very low energy buildings and to develop a common understanding of a harmonised international definitions framework, tools, innovative solutions and industry guidelines. To achieve these objectives the project will document and propose demonstrations of practical net zero energy buildings (NZEBs) with convincing architectural quality.
Net Zero-Energy Buildings – Map of International Projects
Task 40: Map Project
By: Task 40
A research group within the IEA’s “Towards Net Zero Energy Solar Buildings” project has analysed and evaluated the conceptual approaches and performance of almost 300 net zero-energy and energy-plus buildings worldwide. This Google Maps view presents and provides links for sample projects from around the world along with basic project data.
Annex Final Revised: Towards Net Zero Energy Solar Buildings
February 2009 - PDF 0.1MB
By: Karsten Voss and Mark Riley
Energy use in buildings worldwide accounts for over 40% of primary energy use and 24% of greenhouse gas emissions1. Energy use and emissions include both direct, on-site use of fossil fuels as well as indirect use from electricity2, district heating/cooling systems and embodied energy in construction materials.
Towards Net Zero Energy
IEA SHC /ECBCS Project Factsheet
Energy Use in buildings worldwide accounts for over 40% of primary energy use and 24% of greenhouse gas emissions. Energy use and emissions include both direct, on site use of fossil-fuels and indirect use from electricity, district heating / cooling systems and embodied energy in construction materials. Several International Energy Agency (IEA) countries have adopted a vision of so-called ‘net zero energy buildings’ as longterm goal of their energy policies. However, what is missing is a clear definition and international agreement on the measures of building performance that could inform ‘zero energy’ building policies, programmes and industry adoption around the world.