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Subtasks
Subtask A: Analysis, Methodologies & Large-Scale Implications
The objective of this Subtask is to establish an internationally
agreed understanding on NZEBs based on a common methodology. The
Participants shall achieve this objective by:
- The review and analysis of existing NZEB definitions and data
(site/source energy, emissions, exergy, costs, etc.) with respect to
the demand and the supply side;
- A study of grid interaction (power/heating/cooling) and time
dependent energy mismatch analysis.
- The development of a common methodology and definition for the
NZEB concept considering large-scale implications, exergy, credit
systems for the grid interaction (power/heating/cooling) and
relevant ISO/CEN standards.
- The development of a monitoring and verification concept for
checking the annual balance in practice (energy, emissions and
costs) harmonized with the definition.
Subtask B: Energy Efficiency and Energy Supply, Simulation and
Tools
The Subtask aims to identify and investigate key measurements and
technologies and to produce a user-friendly (e.g. spreadsheet or web
based) NZEB energy balance tool. The Participants shall
achieve this objective by:
- A technology focused review of existing NZEB concepts for
cold, moderate and hot climates and identification of
technological improvements considering sustainability, economy
and future prospects.
- Detailed simulations of innovative technologies such as
advanced solar systems and micro co-generation in connection
with building energy loads, solar gain control, energy storage,
controls and utility grids.
- The development and testing of simplified NZEB tools or
interfaces (e.g. spreadsheet or web-based method) linked to a
national / international database of building archetypes and
technologies including a tool for architects to support
architectural integration at the early design stage.
Subtask C: Advanced Concepts, Architecture and Design for
Non-Residential and Residential Buildings
The objectives of this Subtask are: to develop and test whole
building net-zero solutions sets for cold, moderate and hot
climates with exemplary architecture that would be the basis for
national demonstration projects; to document NZEB design options
in terms of market and design acceptance and lifecycle energy
and CO2 implications; and to develop guidelines and tools to
advance industry adoption of integrated designs and concepts.
The Participants shall achieve these objectives by:
- • Documenting and analyzing existing NZEBs, benchmarking
with near NZEBs and other very low energy buildings (new and
existing) and undertaking lifecycle assessment and
optimization studies with respect to material/resource use
and technologies for participating countries.
- With Subtask B, developing tools, guidelines and case
studies for architects, engineers, manufacturers and clients
to support the market adoption of practical, integrated NZEB
concepts.
- With Subtask B, developing advanced NZEB concepts that
integrate engineering solutions and exemplary architecture
for the different climates (cold, moderate and hot) of
participating countries and building types - in close
cooperation with architects, builders, planners,
manufacturers, clients and utilities – as the basis for
national demonstration projects.
Due to the complexity, the Subtask will be divided into a
non-residential (C1) and a residential (C2) stream.
(It should be noted that - after
considering several structural options - this proposal does
not incorporate a dedicated Solar Architecture Subtask. The
proponents for this work have met and are recommending a
separate Task. They feel that this Task would be too
restrictive regarding the activities and the range of
buildings that could benefit from their proposed work. This
will be a topic of discussion for the SHC ExCo) Subtask
D: Dissemination
The objective of the dissemination activity is to support
knowledge transfer and market adoption of NZEBs on a
national and international level.
This is not a separate Subtask but integrates the activities
of Subtasks A, B, and C. Each Subtask will be responsible
for the production of designated parts of the overall
information dissemination activity. Subtask leaders will be
responsible for the coordination of the individual
contributions of Subtask participants and for coordination
with the other Subtasks where a combined output is planned.
Individual participants will be selected to take over
responsibility for each of the proposed dissemination
activities. These dissemination activities will be
coordinated through the Task Steering Committee.
The Participants shall achieve the objectives by:
- Establishing an NZEB web page, within the IEA SHCP
framework, and an database that can be expanded and
updated with the latest projects and experiences.
- Producing a NZEB source book including example
buildings for all investigated building types and
climates.
- Transferring the Task outputs to national policy
groups, industry associations, utilities, academia and
funding programmes.
- Establishing an education network for student
competitions, summer schools, contributions to the Solar
Decathlon and similar activities.
- Workshops, architectural competitions and articles
and features in magazines to stimulate market adoption.
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