Task Information
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Duration
January 2009 -- December 2012
Operating Agents
SHC
Wim van Helden
AgentschapNL / Wim van Helden Renewable Heat
wim@wimvanhelden.com
ECES
Andreas Hauer
ZAE Bavarian Center for Applied Energy Research
Germany
hauer@muc.zae-bayern.de |
Task News
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 Overview
Task 42 is a joint Task with the IEA Energy Conservation through Energy Storage
(ECES) Programme Task 24.
Thermal energy storage is an important technology for renewable energy systems
and energy efficiency. By improving the effectiveness of thermal storage, the
effectiveness of all renewable energy technologies that supply heat can be
improved.
Particularly for solar thermal systems, thermal energy storage is essential. To
reach high solar fractions, it is necessary to store heat (or cold) efficiently
for longer periods of time. Until now, no cost-effective compact storage
technologies are available to do this. For high solar fraction systems, hot
water stores are expensive and require very large volumes of space. Alternative
storage technologies, such as phase change materials (PCMs) and thermochemical
materials (TCMs) are available on a laboratory scale. However, more research and
development is needed before these technologies can be developed into commercial
solutions.
In several IEA Annexes , it was concluded that materials are the main bottleneck
for finding effective solutions for compact thermal energy storage, and that
there is a need for new storage materials with a higher specific energy storage
density and lower material cost.
Around the world, several groups are working on either thermal energy storage
materials or applications. However, these activities are not sufficiently
linked. The current activities are either limited to specific applications, or
to specific materials. What is needed, and what can be provided by this task, is
a way to bring the ongoing work on materials and applications together.
The Task 42/24 started officially January 1, 2009. The planned end date is
December 31, 2012. In 2009, the thermal energy storage experts contributing to
the Task met 2 times. the first expert meeting was in February in Bad T�lz,
Germany. The second meeting was in September in Lleida, Spain. In both meetings,
more than 65 experts shared information about their heat storage projects and
discussed about the goals, activities and deliverables of the Task.
Please refer to this website for more information.
If you need more information or if you have other questions about Task4224,
please contact one of the Operating Agents.
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