contribution of solar heating and cooling to a 100% ... · iea roadmap vision of solar heating and...
TRANSCRIPT
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Contribution of Solar Heating and Cooling
to a 100% Renewable Energy System
Werner Weiss ExCo Chairman
IEA Solar Heating and Cooling Programme
Director, AEE INTEC, Austria
www.iea-shc.org
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Contents
1. The IEA Solar Heating and Cooling Programme
2. Solar thermal markets
3. Applications and related R&D challenges
4. Solar heat cost
5. Conclusions
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IEA SHC - Member Countries
Italy
Australia Belgium Canada Denmark
EC Finland France Germany
Mexico Netherlands Norway Portugal
United States Spain Sweden Switzerland
Austria
South Africa
Singapore
China
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IEA SHC – Current Tasks
13 Tasks (research projects)
550 researchers and experts
2 Tasks on solar thermal components
5 Tasks on solar thermal systems
3 solar building related Tasks
1 Task each on:
- Solar Resource Assessment and Forecasting
- Rating and Certification Procedures
- Advanced Lighting Solutions for Retrofitting Buildings
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Heat accounts for more than half of world’s
total final energy consumption today
Source: IEA Statistics
20.2%
26.7%
24.4%
25.9%
2.8%
Electricity Transport Industry
Buildings Other sectors
World total final energy consumption, 2011 (322 EJ)
Source: Paolo Frankl, IEA, Paris
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Heat plays important role worldwide
Note: Figure based on 2009 data
Source: Energy Technology Perspectives 2012
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IEA Roadmap vision of solar heating and
cooling by sector (EJ/yr)
Solar heating and cooling capacity could produce annually by 2050:
- 16.5 EJ solar heat (16% of TFE low temp. heat)
- 1.5 EJ solar cooling (17% of TFE cooling)
7.2 EJ/a
8.9 EJ/a
1.5 EJ/a
0.4 EJ/a
Source: IEA Technology Roadmap – Solar Heating & Cooling
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Regional solar heating and cooling generation
in buildings and industry
World Map
Source: IEA Technology Roadmap – Solar Heating & Cooling
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Global Solar Heating and Cooling Markets
www.iea-shc.org
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Total installed capacity of unglazed and
glazed water collectors in operation in the
10 leading countries by the end of 2011
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Total capacity of glazed flat plate and
evacuated tube collectors in operation in kWth
per 1,000 inhabitants by the end of 2011
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Annual installed capacity of flat plate and
evacuated tube collectors from 2000 to 2011
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Total installed capacity in operation
by economic regions at the end of 2011
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Distribution of solar thermal systems by
application for the newly installed glazed water
collector capacity of by economic region in 2011
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Thermosiphon systems
for domestic hot water preparation
Source: ESTTP - SRP
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Fraction of thermosyphon systems
in the most important solar thermal markets
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South African
1 Million Solar Water Heater Program
Up to now: Installation of 300,000 – 350,000 systems
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Turkey – Collective System - MFH
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China – world leader in thermosyphon
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Thermosyphon systems - China
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Challenges and Opportunities
Increase the quality and reliability
New materials
Building integration
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Polymeric Materials
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Thermosyphon Systems - façade integrated
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Thermosyphon Systems - façade integrated
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Forced circulated system
for domestic hot water preparation
Source: ESTTP - SRP
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Small-scale Systems for Hot Water Preparation
fsol = 50 – 70%
500 – 650 kWh/kWth
Further Developments: - Compactness - Kit Systems - Significant price reduction
Forced circulated system
for domestic hot water preparation
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Solar thermal combi-system for domestic hot
water preparation and space heating
Source: ESTTP - SRP
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Advanced Solar Combi System
Source: Solvis
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fsol = 20 – 50%
450 – 550 kWh/kWth
Solar Combi Systems for SFH
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Source: Jenni, CH
100% Solar Heated Houses
Multi family house Switzerland
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Integrated facade systems
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Prefabricated facade systems
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Multi family houses
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Two pipe hydraulic concept
for multi family houses
Source: AEE INTEC
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Solar thermal systems for Hotels
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Challenges and Opportunities
Active Solar Houses
Simple frost and stagnation protection
Building integration
High solar fractions
Compact thermal energy storage
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ENERGY STORAGE – THE KEY ISSUE
Task 42/24
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Current fields of Development
Materials
- improve performance (capacity,
power)
- reduce costs (basic material,
production technology)
Components
- heat exchangers
- mass transport
- sensoring, control
Systems
- Integration
- control Source: IEA SHC Task 42
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Development Stages of TES Technologies
Water (sensible)
Market mature
PCM (latent)
Demonstration
Sorption
Development
TCM (chemical)
Research
++ heatheat
DISCHARGEDISCHARGE
CHARGECHARGE
STORESTORE
+ + heatheat
++ heatheat
DISCHARGEDISCHARGE
CHARGECHARGE
STORESTORE
+ + heatheat
Source: IEA SHC Task 42
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Sorption Storage – AEE INTEC
Source: AEE INTEC
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www.iea-shc.org
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Main achievements:
• Development of small capacity thermally driven chillers (<35 kWcold)
• Optimization of the heat rejection subsystem
Sortech AG
EAW Pink GmbH
Development of small capacity thermally driven
chillers - IEA SHC Task 38
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Solar Air Conditioning and Refrigeration
IEA SHC Task 38 / Task 48
Source: SOLID, Graz
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Source: SOLID, Graz / Chiller: BROAD
The United World Colleges, Singapore
IEA SHC Task 38 / Task 48
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Sources: Solem Consulting / Green Chiller
Solar Cooling Systems in Operation
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Challenges and Opportunities
Small systems: Competition with PV and HP
Big systems for offices and hotel sector
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District Heating – 3,5 MWth
, Graz, Austria
IEA SHC Task 45
Source: S.O.L.I.D.
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Simple system concept
for urban district heating
Source: S.O.L.I.D.
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Biggest District Heating System Worldwide
Saudi Arabia, 36.000 m² / 25 MWth
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Biggest District Heating System Worldwide
Saudi Arabia, 36.000 m² / 25 MWth
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Pipes and Heat Exchangers
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Solar Space Heating with High Solar Fraction Drake Landing Solar Community, Canada
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Drake Landing Solar Community
IEA SHC Task 45
Location: Okotoks, Alberta, Canada
Number of homes: 52
Collector area: 2,293 m² (1.6 MWth)
Addition independent solar domestic hot water systems
for each home
Short-term storage tank: 2 x 120 m³ steel tanks
Borehole thermal energy storage: 34,000 m³ earth, 144
boreholes
Commissioning: July 2007
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Seasonal Borehole Thermal Energy Storage
Source: CanmetENERGY, Ottawa
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Borehole Thermal Energy Storage
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BTES Core Temperatures
July 2007 – May 2011
Source: CanmetENERGY, Ottawa
1st year
2nd year
3rd year 4th year
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Energy supplied to the Distribution Loop
July 2007 – July 2013
*) 2011 and 2012
Source: CanmetENERGY, Ottawa
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Source: Leo Holm, Marstal Fjernvarme
Marstal Solar District Heating, DK
75.000 m³ Pit Heat Storage
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Source: Leo Holm, Marstal Fjernvarme
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Smart District Heating Systems
Integration of heat and electrical grids
Source: Jan-Erik Nielsen, PlanEnergi, Cost source: SDH, Report „success factors in district heating, Dec 2010
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Electricity prices during the summer and
winter period in Denmark
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Challenges and Opportunities
Optimized collector field hydraulics
Integrated thermal / electric grids
Smart control and metering
New business concepts (ESCO)
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First Results – IEA SHC Task 49 Data base
122 systems, 125,600 m² , 87.8 MW
0
5000
10000
15000
20000
25000
30000
0
5
10
15
20
25
30
35
To
tal a
rea
of ca
the
go
ry
[m²]
Nu
mb
er
of
sys
tem
s
total area for each category number of plants
52 systems with 2.250 m² total
17 systems with 98.700 m² total
Source: IEA SHC Task 49
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74 25
8
5 3
7
Europe Asia USA Africa South America k.A.
First Results IEA SHC Task 49 - Countries
Country quantity
Austria 20
Germany 13
Greece 13
Spain 12
Portugal 4
Switzerland 4
France 2
Romania 2
Cyprus 1
Czech Republic 1
Sweden 1
Turkey 1
India 8
China 5
Thailand 3
Vietnam 3
Indonesia 1
Saudi Arabia 1
Jordan 4
USA 8
Tunisia 1
Egypt 2
Kenya 1
Panama 1
Argentinia 1
Chile 1
Costa Rica 1
k.A. 7
Europe
Asia
USA
Africa
Source: IEA SHC Task 49
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System price related to system size
0
200
400
600
800
1000
1200
1400
€/m
²
m²
lowest price
highest price
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Brewery Göss, Austria
Source: AEE INTEC
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Integration into the mashing process
GEA brewery systems
Source: AEE INTEC
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Integration into the mashing process
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Textile Industry Hangzhou China
13000㎡ (9 MWth
)
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Copper Mine in Chile - 26MWth
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Copper Mine “Gabriela Mistral”, Chile
26MWth (39,300 m²)
System
39.300 m² Flat plate collector
4.300 m³ Storage
85-100% Solar fraction
Process
Electro winning of copper
Electrolyte is kept on a constant Temp. of 50 °C
Cleaning Processes
Source: SUNMARK and IEA SHC Task 49
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Copper Mine “Gabriela Mistral”, Chile
26MWth (39,300 m²)
Source: SUNMARK
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High Vacuum Flat-plate, Trough and Fresnel
Collectors
High vacuum flat-plate collector by TVP SOLAR in Masdar City (Abu-Dhabi, UAE)
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Challenges and Opportunities
Medium temperature collector development
Self carrying collectors
Process integration
…
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www.iea-shc.org
The Future of Solar Heating and
Cooling?
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Cost of Solar Heat in Europe
Quelle: ETP RHC (2013)
0 5 10 15 20 25 30 35
DHW thermosiphonand forced…
DHW forcedcirculation…
Combi-systemsCentral / Northern…
Industrial processheat…
District heatingCentral Europe
Useful heatfrom natural gas
Useful heatfrom electricity
Heat costs in €-cent / kWh
EU27 average: €-cent 19.3 EU27 average:
€-cent 7.7
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Conclusions
Potential generation of 1/6 of world total final energy for
low-temp heat and cooling by 2050
Similar potential in both building and industrial (process
heat) sectors
Economics differ per climate
Gas heat price parity reached for different applications
Crucial to address non-economic barriers: high up-front
investment, information failures, split-incentives, quality
insurance
Need to transfer experience and knowledge to regions with
good resource but less experience
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…a quick reaction and
adjustment to the situation is
needed
To make use of the potential…
Thank you for your attention