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German Solar Industry Association (BSW-Solar)
Study of opportunities for solar thermal systems in the tertiary and industrial sector in Tunisia
Jan Michael KnaackBSW-SolarSenior Project ManagerTunis, 26. Sept. 2014
Supported by
Agenda
1. Presentation of consortium
1. Institutions
2. Prior experience in ST & Tunisia / MENA
2. Project approach: Desired outcome
3. Methodology & Simulation (DS, BG)
4. Data available so far and research requirements (DS, CAMI)
5. Next steps (BSW)
© BSW-Solar
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German Solar Industry Association (BSW-Solar)
Consortium
© BSW-Solar
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4The German Solar Industry Association
TASK To represent the solar industry in Germany in
the thermal and photovoltaic sector
VISION A sustainable global energy supply provided
by solar (renewable) energy
ACTIVITIES Lobbying, political advice, public
relations, market observation, standardization
EXPERIENCE Active in the solar energy sector for
over 30 years
REPRESENTS More than 800 solar producers,
suppliers, wholesalers, installers and other companies
active in the solar business
HEADQUARTERS Berlin
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© BSW-Solar
Valentin Software GmbH
Established 1988
Software development of design, simulation and modeling tools for photovoltaic and solar thermal systems
Standard & customized software
30 employees (of which over 50% are engineers and developers)
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A dynamic simulation program for the design and optimization of solar thermal systems, for applications including space heating, domestic hot water, pools and industrial usage.
A dynamic simulation program for the design and calculation of photovoltaic systems, including grid-connected, off-grid and battery packed-up systems.
Ing. Detlev Seidler
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- Degree in Mechanical EngineeringDiploma thesis: Development of a stratifying tank for solar applications
More than 20 years of experience:
- Planning engineerPlanning and operation of cogeneration plants
- Project developmentESCO projects in industry
- General manager Sales for large scale solar systems
- Head of sales Germany Sales for large scale solar systems
- Further solar activitiesSpeaker of the BSW working group on solar process heat member of IEA task 49 (process heat)
CAMI
• Ing. Mr. Abdelhak Kemiri
25 years of experience in:
• Engineering• Energy Audits & Energy Saving• Assistance and Coordination of Industrial Project Tasks• Industrial Maintenance Services
Vast experience with energy audits and efficiency consulting
Task in the project:
Provision of local expertise and data
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Prior experience
Solar Thermal: - GroSol-Study: Study of large solar thermal system for multi
family houses in Germany (2007)
- SoLarge: Analysis on large solar thermal multi family houses in multi family houses in 6 countries of Europe (2006 – 2008)
- Solar Thermal Research Roadmaps for Europe (2008) & Germany (2010)
- Solar Thermal Market Development Roadmap for Germany (2011 / 12)
- Process Heat: Study of cost competitiveness of solar thermal for industrial processes in Germany (2012/13) with Fichtner Gmbh
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Prior experience of BSW-Solar
PV• Numerous studies and roadmaps processes for Germany• Consultancies, Workshops & Studies in India, Indonesia, Sub-Sahara-
Africa, Latin America• PV Legal 2009 – 12: Study & policy recommendations to reduce
political barriers in 12 European countries• PV Grid 2012 – 14: Study & policy recommendations to
reduce technical barriers in 17 European countries
Enabling PV (2014)
Cost & profitability analysis, simulations and (policy)
recommendations as well as guideline for investors in- Brazil- Jordan- Tunisia
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German Solar Industry Association (BSW-Solar)
Project: Study of opportunities for solar thermal systems in the tertiary and industrial sector in Tunisia (Sept. to Nov. 2014)
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Goal of the study
• Identify economic opportunities for solar thermal system in the tertiary (forced circulation) and industrial sector in Tunisia
• Define scenarios for economic opportunities as a basis to define promising market segments
• Develop policy recommendations
Activities
• Collection of relevant information on:– Different ST technologies (flat plate / vacuum tube / concenrating
systems) to provide technical recommendation for Tunisia– ST-System costs for local / foreign products
• Collectors, storage, overall costs– Relevant applications for ST in different industries / branches– Competing heat generation sources in those branches
• Profitability & sensitivity analysis for ST systems in different applications in Tunisia for industrial and tertiary sector including
• Comparison with conventional technologies
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Identified Market Segments & Technologies
Industry• Agriculture• Textile• Chemical• Brickworks
Tertiary Sector• Hotel• Hospital• Multi family houses• Thalasso
Technologies• Flat plate / Vacuum Tube Collectors, Fresnel Concentration Collectors• Applications with / without heat storage
Are these the right cases & technologies? © BSW-Solar
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Processes to be investigated: Solar Integration• Steam
– supply level is most suitable– only 1 big solar system (needed space available?) – storing the steam is nearly impossible – for concentrating solar systems
- minimum size 500 m²- economy of scale: 2.500 m²++
• Hot water– integration on the consumer level is possible and more
effective– solar fraction might be lower, because not all processes can
be served– 2 smaller systems instead of 1 big system if suitable storing
the heat is easy – for non concentrating solar systems
• economy of scale: 1.000 m²++ © BSW-Solar
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Industry: possible cases
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company branch climate zoneDNI level
fuel supply levelyearly demand
consumer level demand
Rayen IAAFoods
plateaux du Nordcostal fuel oil
steam14.000 MWh/a 28% at 25/90°C
335 days /24 hfluctuating
SAIPH ICHPharmaceutics mediterrainian natural gas
steam9.000 MWh/a 100% at 70/80°C 24 / 7
TFMITCHTextile mediterrainian natural gas
steam12.600 MWh/a 60 - 95 °C
7 to 22:00 (4.500h/a)3 weeks holidays
MTK IDTabac plateaux du Nord natural gas steam
only 178 days5:00 to 14:30
SNA IAAFoods mediterrainian natural gas steam
during Summernot 7:00 to 13:00
UNPA / Lepidor
IAADairy
mediterrainian natural gas superheatedwater 60/140°C
air 80°C 24 / 7
steam air / vapeur 110°C 24 / 7
• Relevant criteria? • Representative consumption?
26.09.2014
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• Meteo dataset• Economic
boundaryconditions
• Case studies
Appliance to Tunisia
Economic boundary conditions
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Case studies
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26.09.2014
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Hydraulic Schemes
A15.1 Steam generator (kettle type)
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• Thermal demand for– Domestic Hot Water
• Temperature monthly consumption, profiles
– Heating• Monthly heat, basic building parameters
– Indoor Pools• Pool area and depth, temperature, persons a day, …
– Industrial Heat and Steam• Temperature level, Monthly consumption, profiles
• Important: Typical profiles of demand
Necessary technical input
Technical data e.g. heating demand of a building (tertiary sector)
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Technical data industrial processes
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26.09.2014
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• Applied to each case study• Dynamic input parameters:
– Size of collector field (solar fraction)– Load factor– Fuel costs– Financing costs– Subsidy ratio
• Output parameters:– Levelized heat generation costs (TD/kWh)– Payback period in years– Net-present value– Internal rate of return
Sensitivity Analysis
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• Presented for each case study
• Tables with technical result
– Solar System yield
– Efficiency, Solar fraction
– Saved fuels
• Chart for each output parameter showing the
dependency on the dynamic input parameters
• Critical values for economic viability
Results of sensitivity analysis
Study outline
Chapter• 1. Executive Summary• 2. Introduction
– Solar Thermal Market Profile / Institutional Framework– Levelized heat generation costs of conventional technologies (natural gas /
oil / co-generation, subsidies)• 3. Solar Technologies • Heating and Cooling
– Heat integration methods– Solar air conditioning and cooling
• Collector types:• - Flat plate collector / Evacuated tubes / Concentrated Fresnel /
Concentrated Parabolic / trough / Absorber• - Conclusion: most frequently applied technologies (incl. Matrix)
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Study outline
• 4. Relevant applications in Tunisia• tertiary sector
– Sector 1: energy supply, process, temperatures, location specifics, heat costs, relevance of energy costs, investment behavior (incl. accepted criteria of economic viability)
– Sector 2-4…• industrial sector
– Sector 1: energy supply, process, temperatures, location specifics, heat costs, relevance of energy costs, investment behavior (incl. accepted criteria of economic viability)
– Sector 2-4 …– - Conclusion: Selection of applications for further analysis
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Study outline
• 5. Case Studies– Overview of selected cases– general boundary conditions (climate zones / irradiation, prices)– method of economic analysis (output parameters, optimum
definition)– description of T-Sol– Case 1
• case-specific input parameters• solar system description• results (incl. sensitivities) and economic optimum
(recommended design and dimensioning)– Case 2-8…– - Conclusions of case studies
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Study outline• 6. Economic conclusions
– evaluation of cases– optimum scenario– recommended technologies– comparison with conventional technologies– conclusion
• 7. Market potential– method (based on energy audit data / sample solar fraction of
recommended technology)– potential per sector– - recommendations on how to transfer technical in economic
potential• 8. Political recommendation
– barriers and challenges from an economic perspective– investment requirements– subsidy and framework requirements– - final recommendations derived from optimum scenario © BSW-
Solar
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Which information is missing?
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German Solar Industry Association (BSW-Solar)
Merci pour votre attention!
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German Solar Industry Association (BSW-Solar)
Back up: BSW-Solar Activities + Examples
Eine Vielzahl geeigneter Prozesse bestimmen das Marktpotenzial
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Information zur Verfügung gestellt von
Neue Arbeitsgruppe Industrielle Prozesswärme im BSW-Solar
Gründung am 08. Mai 2012 in Bad Staffelstein
Workshop mit rund 15 Firmen zur Ideenfindung
Definiertes Tätigkeitsgebiet
Prozesswärmeanwendungen bis 100°C, aber auch höhere Temperaturen werden berücksichtigt, genauso Fernwärmeanwendungen, da die Herausforderungen und Lösungen für die Solarthermie dabei ähnlich sind.
Ziele und Aktivitäten bisher: • Arbeitsprogramm mit Priorisierung• Markterkundung (Zielgruppen, Technik)• Erstellung von Lastenheften für Studien• Dialog mit Wissenschaft, BMU, BAFA über • Kontinuierliche Öffentlichkeitsarbeit,
Journalistenkontakte durch Fachvorträge
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German Solar Industry Association (BSW-Solar)
Beispielprojekte
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• Brauerei mittlerer Größe
• Wärmeverbrauch: 4 GWh / Jahr
• Prozess: Vorheizung von Brauwasser=> Optimierte Wärmerückgewinnung=> Solarthermisches System
• (155 qm Flachkollektoren, 10 qm Speicher)
• Erwarteter Solarertrag 480 kWh/qm/a
• Systemkosten 300 €/qm (incl. 50% Förderung)
• Komponenten / Installation: ThüSolar GmbH, 2010
Information zur Verfügung gestellt von
Beispielprojekt: Brauerei Hütt in Baunatal (Nähe Kassel)
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Beispielprojekt: Wäscherei Laguna in Cölbe bei Marburg
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• Entwickelt von Wagner & Co. Solartechnik zusammen mit dem Fraunhofer ISE (gefördert durch BMU).
• Anlage wurde im Juli 2010 von installiert und bis Ende Okt. 2011 vom ISE einem detaillierten Monitoring unterzogen.
• Das Kollektorfeld wird mit bis zu 130°C und 6 bar betrieben und lädt eine Druck-Speicherkaskade aus Vorrangspeicher und zwei Nachrangspeichern.
• Anlage erwärmt auf Versorgungsebene (Dampfnetz) Kessel-Zusatzwasser und Kessel-Speisewasser, auf Prozessebene wird Waschwasser für die Waschmaschinen versorgt.
Beispielprojekt: Hustert Galvanik in Rahden
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• Erwärmung der Becken auf 65 bis 80 °C)
• 221 qm Vakuumröhren-Kollektoren
• Kein Speicher
• Erwarteter Ertrag: 450 kWh/qm
• Erwartete solare Deckung: 40 %
Komponenten / Installation: Ritter XL Solar / Schapka Haustechnik, 2011
Information zur Verfügung gestellt von
Beispielprojekt: Beheizung einer Gasdruckregelanlagein Großseelheim
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Realisierung: Juli 2012
355 m² Freiaufstellung Flachkollektoren, Wagner LBM
Zusätzliche Abwärme-Nutzung aus einer Biogasanlage
Wärmebedarf für den Prozess: ca. 1.5 Mio. kWh/a
Solare Deckungsrate: ~20%Deckungsrate Erneuerbare Energien: ~75%
Solares Wärme-Contracting: Die Wärme wird an den lokalen Gasanbieter verkauft
Information zur Verfügung gestellt von
Beispielprojekt: Solare Heutrocknung und Versor-gung eines Nahwärmenetzes eines Bio-Bauernhofs
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Realisierung: April 2012
155 m² Solar-Roof
Farm: Heu-Rundballen-Trocknung für Milchkühe + Unterstützung der Heizung und Trinkwarmwassererzeugung
Trocknung: 100% sol. Deckung
Information zur Verfügung gestellt von