Assessment of the environmental friendliness of Photovoltaic cells:          Energetic aspect                             ...
Table of contents:1. Basics of PV technology2. Fields of use3. Industry overview4. Energy payback periods4.1.!Comparison b...
1. Basics of PV technology                   Credits:http://www.sunnywinenergy.com                                        ...
2. Fields of use•Residential installation•Commercial plants•Off-grid systems•Consumer goodsCredits:http://www.ardenhamener...
3. Industry overview                             Credits:Global Market Outlook for Photovoltaics until 2013 EPIA . April 2...
4. Energy payback periods Credits: Life Cycle Assessment of Photovoltaics: Update of ecoinvent data. Energy research Centr...
#   Credits: Life Cycle Assessment of Photovoltaics: Update of ecoinvent data. Energy research Centre of the Netherlands, ...
4. Energy payback periods     Credits: Energy payback times of PV modules and systems. Mariska de Wild-Scholten. November ...
4.1.!Comparison based on geographic location: Case study                                               Germany: Dresden   ...
IKEA Dresden:                                                      Parking area = 38588m2Credits: http://cam.sit-livecam.d...
Technology chosen: CdTe•   First Solar FS Series 2 PV Module (FS - 277)•   Area: 0.72m2•   Rated power output: 58.1Wp•   W...
Results:                                        Number of           Total parking   PV covered                            ...
Energy payback time:             Total         Yearly      Efficiency in    Avoided                                        ...
Energy payback time:                                                                                 1                    ...
4.2. Use in automotive industry•Bollore/Pininfarina Blue car: 330"/ month.•Fisker Karma.                                  ...
4.2. Use in automotive industry: Case study•Manufacturer: Toyota•Modifier: Solar Electric Vehicles•PV module : 215Wp•The ca...
Manufacturer Data:    Useful life:                 160,000 Km                     4.28L/100 Km       5.23L/ 100KmAssumptio...
4.3. Use in consumer electronics•100% renewable energysupply.•Increased independencefrom electricity plugs =autonomy.•Avoi...
5. Conclusion•PV cells energetic payback time ranges between < 1 year and 5 years depending on the location and the techno...
6. References•   ENVIRONMENTAL IMPACTS OF PV ELECTRICITY GENERATION - A CRITICAL COMPARISON OF ENERGY SUPPLY    OPTIONS, A...
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Energetic payback time of PV: In Germany and Tunisia

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I made this little study for the course Corporate Environmental Protection, I calculated the electricity produced and the energetic payback time for two identical installations: one in Dresden and one in Tunis.

10 minutes were too little, the subject is interesting and can be further developed.

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  • Energetic payback time of PV: In Germany and Tunisia

    1. 1. Assessment of the environmental friendliness of Photovoltaic cells: Energetic aspect Credits: http://www.eets.co.uk.Amin Zayani 2806043 ERM WS 2009/10 14.01.2010Corporate Environmental Protection 1
    2. 2. Table of contents:1. Basics of PV technology2. Fields of use3. Industry overview4. Energy payback periods4.1.!Comparison based on geographic location: Case study4.2. Use in automotive industry: Case study4.3. Use in consumer electronics5. Conclusion6. References 2
    3. 3. 1. Basics of PV technology Credits:http://www.sunnywinenergy.com 3
    4. 4. 2. Fields of use•Residential installation•Commercial plants•Off-grid systems•Consumer goodsCredits:http://www.ardenhamenergy.co.uk http://technology4life.wordpress.com http://www.iteco.ch http://www.homesolarinfo.com 4
    5. 5. 3. Industry overview Credits:Global Market Outlook for Photovoltaics until 2013 EPIA . April 2009Historical development of Global cumulative PV power installed per region 5
    6. 6. 4. Energy payback periods Credits: Life Cycle Assessment of Photovoltaics: Update of ecoinvent data. Energy research Centre of the Netherlands, Unit Solar Energy Swiss PV installations: Payback time. 2008. 6
    7. 7. # Credits: Life Cycle Assessment of Photovoltaics: Update of ecoinvent data. Energy research Centre of the Netherlands, Unit Solar Energy$%&#()#*+,-&.#/0.#1023#4%5,#67#8#39/#:;0+4,<=-667#5>;4%2-.:40;;%+,#/0+,;:#6/,-04,<#%+#*>-6/,#%+#-,;04%6+#46#4?,#@AB*# ,;,24-%2%4.#5%C#D6E+#20;2>;04%6+#E%4?#F"GHI#!"#$ %&()*+,&-$&.$/+..0*0-1$2&3-1*+0,$ 7
    8. 8. 4. Energy payback periods Credits: Energy payback times of PV modules and systems. Mariska de Wild-Scholten. November 2009. Energy Payback time for PV cells 2009 8
    9. 9. 4.1.!Comparison based on geographic location: Case study Germany: Dresden Yearly global irradiation: 1130 [kWh/m2] Tunisia: Tunis Yearly global irradiation: 1818 [kWh/m2] Meteotest; database Meteonorm!(www.meteonorm.com) 9
    10. 10. IKEA Dresden: Parking area = 38588m2Credits: http://cam.sit-livecam.de/Ikea. July 2009.Carrefour Tunis:Parking area = 38530m2 Credits: Bilel Gaaliche. April 2009. Credits: Bilel Gaaliche. April 2009. 10
    11. 11. Technology chosen: CdTe• First Solar FS Series 2 PV Module (FS - 277)• Area: 0.72m2• Rated power output: 58.1Wp• Warranty: power output warranty of 90% of the nominal output power rating during the first10 years and 80% during 25 years. :1234);5672)<=;> ?@6A&• Cumulative1B05C0123435672/859 energy input (industry standard): 12236 MJ/kWp :1234);5672)<DE25F@> ?@6A&• CdTe: By product from Zinc 1B05C0123435672/G@refining. Not classified as hazardous. Credits: First Solar. .../0123435672/859 11
    12. 12. Results: Number of Total parking PV covered Yearly Site area area panels Peak capacity production installedDresden 38588 m! 25000 m! 34722 2 MWp 1716 MWh Tunis 38530 m! 25000 m! 34722 2 MWp 2675MWh 12
    13. 13. Energy payback time: Total Yearly Efficiency in Avoided Energy Site Cumulative generated electricity primary payback time energy input electricity supply energyDresden 685.7MWh 1716 MWh 3.16KWh 5435 MWh 1.26 years Tunis 685.7MWh 2675MWh 3.16KWh 8469MWh 0.8 years 13
    14. 14. Energy payback time: 1 2,700,000 1 2,025,000 1,350,000 1 675,000 0 Dresden Dresden 0 Tunis 0 Tunis Yearly produced electricity [KWh] Payback time [years] 14
    15. 15. 4.2. Use in automotive industry•Bollore/Pininfarina Blue car: 330"/ month.•Fisker Karma. Credits: Blue Car.Credits: Fisker Automotive. 15
    16. 16. 4.2. Use in automotive industry: Case study•Manufacturer: Toyota•Modifier: Solar Electric Vehicles•PV module : 215Wp•The car uses 95-110 Wh/Km (in full-electric mode)•Drives 8 to 13 km on one day solar charge (California conditions) Credits: http://www.solarelectricalvehicles.com 16
    17. 17. Manufacturer Data: Useful life: 160,000 Km 4.28L/100 Km 5.23L/ 100KmAssumptions: 17 to 29 % savingsTotal consumption: 6882 L 8411 LSavings 1185 to 2010 L 1446 to 2453 L 17
    18. 18. 4.3. Use in consumer electronics•100% renewable energysupply.•Increased independencefrom electricity plugs =autonomy.•Avoids a lot of toxicdisposable batteries fromgoing to waste.•Adds a non-hazardouscomponent to the devices. Credits: http://www.crunchgear.com http://education.ti.com http://www.china-solar.com/ http://www.coolest-gadgets.com/ http://www.casio.co.uk http://www.made-in-china.com 18
    19. 19. 5. Conclusion•PV cells energetic payback time ranges between < 1 year and 5 years depending on the location and the technology.•Manufacturers are decreasing material and energy used for economical reasons.•PV cells supply green electricity to the grid and off the grid. 19
    20. 20. 6. References• ENVIRONMENTAL IMPACTS OF PV ELECTRICITY GENERATION - A CRITICAL COMPARISON OF ENERGY SUPPLY OPTIONS, Alsema, De wild Fthenakis. 2006• Energy payback times of PV modules and systems Mariska de Wild-Scholten. 2009.• Environmental Assessment and Metrics for Solar: Case Study of SolFocus Solar Concentrator Systems• Life Cycle Assessment of Photovoltaics: Update of ecoinvent data. Energy research Centre of the Netherlands, Unit Solar Energy• European Commission, Joint Research Centre Institute for Energy, Renewable Energy Unit http://re.jrc.ec.europa.eu/pvgis/index.htm• Global Market Outlook for Photovoltaics until 2013 EPIA . April 2009• http://www.solarelectricalvehicles.com/articles/prius-white-paper.shtml <last access: 14.01.2010>• www.Firstsolar.com <last access: 13.01.2010> 20

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