03_2007-02-09_Results NEGST Project (arsenal research_Schindl

Results from FP6 coordinate action „NEGST“
Work package 2:
Standardised system concepts for large solar
thermal systems
Jan Schindl, arsenal research
ITW
Renewable Energy Technologies
NEGST (new generation of solar thermal systems)
•
•
•
•
EU funded coordinate action project
Participants from 18 institutions from 12 countries (apart from
ECOFYS no overlapping of consortium to SOLARGE)
Investigations on
1. New generation of small solar thermal systems
2. Standardised concepts for large solar thermal systems
3. Building integration
4. Standards
5. Solar cooling and desalination issues
Most results are public for download on the NEGST project
homepage
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-1-
Strasbourg, France, 8–9 Feb. 2007
Main conclusions of work package on CSTS
• Market for CSTS is increasingly developing
• Technologically mature system concepts are on the market
• Economy and lack of information are considered the biggest
barriers
• Need for special trainings, spezialisation of companies and
the establishment of new technical quality standards for CSTS
(hydraulic design, simulation during dimensioning, minimum
monitoring) amongst planners and manufacturers
• Need for establishment of organizational standards to support
investors (not specific to solar thermal but relevant for all innovative
buildings as well as retrofittings – „integral planning“)
Renewable Energy Technologies
European dissemination of CSTS
Total solar thermal collector surface installed within CSTS
80 %
120.000
50%
40%
90.000
30%
30%
67.500
55.000
20%
45.000
16%
30.000
30.000
6.000
1%
2.100
Sp
ai
n
0%
ay
Ita
ly
er
m
an
y
G
Fr
an
ce
0
1%
1%
N
et
he
rla
nd
s
4%
D
an
m
ar
k
10%
14.000
re
ec
e
6%
Au
st
ria
15%
N
or
w
60.000
Share of CSTS of total installed collector area
420.000
139.000
G
Total collector surface of CSTS (m²)
150.000
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-2-
Strasbourg, France, 8–9 Feb. 2007
Survey on barriers for the dissemination of CSTS
• Consensus on insufficient economy being the major barrier for
dissemination in most countries
• Key issues for the future apart from economic frame conditions:
Qualification measures, integral planning and improved
maintenance/monitoring concepts
• Reasons for weak performance of CSTS:
50 % planning and construction, 50 % maintainence
info:
66 responses from 8 countries
Experience of 1.300 large
systems > 50 m² captured
Poor participation of building
industry
National and overall analysis
of responses in NEGST report
Installation
mistakes; 32%
Planning mistakes;
18%
Automated function
control is missing;
8%
Trained personel for
operation missing;
14%
Maintenance
missing; 28%
Renewable Energy Technologies
Survey on methods for encouraging CSTS investments
Guaranteed Solar Results (GSR), Third pary financing (TPF)
• The application of CSTS by ESCOS is reported very low mostly due
to economic reasons
• Hardly any solar-companies offer „Solar Contracting“
• After funded pilot projects, hardly any application of GSR:
Complicated, unclear, expensive, critical position of „independent
party“
• Successful application if supported by agencies (France, Hamburg)
or in simplified manner (social housing companies in Austria)
• Report, including database on stakeholders and good practise
examples in the involved countries on NEGST website
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-3-
Strasbourg, France, 8–9 Feb. 2007
Comparison of hydraulic solutions
• Different concepts on national markets due to differing boundary
conditions (consumer, heat distribution, climate, subsidies/economy)
• Technologically mature solutions for CSTS on the market for DHW
preheating as well as solar combisystems
• Innovations and standardisation mainly observed in
Central European markets
• Recommanded hydraulic concepts
– high performance (solar efficiency, solar fraction)
– robust and failure-free operation
Renewable Energy Technologies
Reknown international system layouts
Domestic hot water preheating systems
ie
l
d
domestic hot water
Source: ITW
co
lle
ct
o
rf
boiler
solar
buffer
store
legionella
coupling
cold water
solar
preheating
storage
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-4-
Strasbourg, France, 8–9 Feb. 2007
Reknown international system layouts
Source: Tecsol
Domestic hot water preheating systems (fresh water tanks)
Solar
collectors
Hot water supply
Solar
tank
Auxilliary
tank
Heat
exchangeur
Renewable Energy Technologies
Reknown international system layouts
Source: Aiguasol
Domestic hot water systems in Southern Europe
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-5-
Strasbourg, France, 8–9 Feb. 2007
Innovative system layouts
Solar DHW/combisystems with pefabricated hydraulic units
Source: Sonnenkraft
Renewable Energy Technologies
Innovative system layouts
Solar combisystems for multi family houses
ld
fe
or
kt
lle
Ko
Energiespeicher
Source: Redan
Warmwasser
Kaltwasser
Warmwasser
Kaltwasser
Kessel
Source: AEE INTEC
Warmwasser
Kaltwasser
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-6-
Strasbourg, France, 8–9 Feb. 2007
Investigation of standardised components for CSTS
Source: SOLID GmbH
Source: Pink Behältertechnik
Longer existing, still good solutions:
Large scale solar collectors and stratification devices in solar storages
Renewable Energy Technologies
Investigation of standardised components for CSTS
Relatively new development:
Prefabrication of charging units, units for central and decentral
instantaneous domestic hot water preparation
Source: Sonnenkraft
Source: Parabel Solar
Source: Redan
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-7-
Strasbourg, France, 8–9 Feb. 2007
Summary of NEGST ressources
• Planners and manufacturers
– Description of state-of-the-art in CSTS (hydraulic layouts,
innovative components, monitoring) with a European scope
• General technical guidelines for planners
• Guidelines for monitoring of CSTS
• Summary of publications on planning/dimensioning of CSTS
� may be of interest for SOLARGE training courses
• Agencies
– Compilation of existing marketing materials
– Organizational guidelines for investors
– Survey and data base: GSR, Solar contracting
� may be of interest for SOLARGE networking and public incentives
Renewable Energy Technologies
www.swt-technologie.de/negst.html
I´m sorry I couldn´t make it to Straßburg.
Best regards.
[email protected]
+43 50550 6374
Renewable Energy Technologies
SOLARGE – EUROPEAN EXPERT WORKSHOP ON COLLECTIVE SOLAR THERMAL SYSTEMS
2-3 Results NEGST Project, arsenal research, Schindl
-8-
Strasbourg, France, 8–9 Feb. 2007