Explaining the three main factors driving the cost of electricity produced by solarPV systems connected to the local network.

1. Wednesday, October 2, 13

2. Wednesday, October 2, 13

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600 700 800 900 1000 1100 1200 1300 1400
Drivers of solarPV electricity prize
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
6% credit small PVS-2013
4% credit large PVS-2013
4% credit small PVS-2013
6% credit large PVS-2013
Wednesday, October 2, 13

4. small PVS-2008
large PVS-2008
Wednesday, October 2, 13

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Electricity prize for a large and a small PV-system at 4% loan credit in 2008
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
small PVS-2008
large PVS-2008
Wednesday, October 2, 13

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Electricity prize for a large and a small PV-system at 4% loan credit in 2008
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
small PVS-2008
large PVS-2008
large PV-systems
are cheaper than
small systems
Wednesday, October 2, 13

7. Small residental PV-system
Description:
roof-integrated solarPV system
close to alpine ridge location
25 modules manufactured by 3-S
replacing an old shingle roof
installed nominal power: 3.7 kWPeak
Area of PV-modules: 27 m2
Area of roof: 33 m2
Cost:
up to 4 kWpeak we can calculate with 9’000.- / kWPeak
resp. 1150.- / m2
This will give an electricity prize of CHF 0.80 / kWh
Expected lifetime of the PV-system: 30 years
Wednesday, October 2, 13

8. Medium sized PV-system
Description:
PV-modules are mounte onto the
existing roof
pre-alpine location
120 modules SW175 by Solarworld
installed nominal power: 21 kWPeak
Area of PV-modules: 160 m2
Area of roof: 200 m2
Cost:
above 4 kWpeak we can calculate with 6’800.- / kWPeak
resp. 900.- / m2
This will give an electricity prize of CHF 0.60 / kWh
Expected lifetime of the PV-system: 30 years
Wednesday, October 2, 13

9. large PV-systems
became cheaper
Hamburg MünchenBerlin
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600 700 800 900 1000 1100 1200 1300 1400
Electricity prize for a large and a small PV-system at 4% loan credit in 2008
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
small PVS-2008
large PVS-2008
Wednesday, October 2, 13

10. large PV-systems
became cheaper
Hamburg MünchenBerlin
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600 700 800 900 1000 1100 1200 1300 1400
Electricity prize for a large and a small PV-system at 4% loan credit in 2008
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
small PVS-2008
large PVS-2008
SolarPV electricity is
cheaper on sunny places
Hamburg Barcelona
Wednesday, October 2, 13

11. Map of Europe’s sun irradiation
(c) European Union
2012
Wednesday, October 2, 13

12. Map of Europe’s sun irradiation
(c) European Union
2012
Wednesday, October 2, 13

13. Mind the scales...
Wednesday, October 2, 13

14. Hamburg
Barcelona
Mind the scales...
Wednesday, October 2, 13

15. Hamburg
Barcelona
Hamburg
Barcelona
Mind the scales...
Wednesday, October 2, 13

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600 700 800 900 1000 1100 1200 1300 1400
A large PV-system at 4% and 6% loan credit in 2013
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
Hamburg Barcelona
6% credit PVS-2013
4% credit PVS-2013
Wednesday, October 2, 13

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0.15
0.20
0.25
0.30
0.35
0.40
600 700 800 900 1000 1100 1200 1300 1400
A large PV-system at 4% and 6% loan credit in 2013
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
The loan credit
plays a crucial role
Hamburg Barcelona
6% credit PVS-2013
4% credit PVS-2013
Wednesday, October 2, 13

18. Components of a PV-system
Not all parts of a solarPV
systems scale with the
installed power (kWPeak)
of the system:
• The more modules, the
more you pay, but
• planning big systems
should not cost more
than small systems.
Wednesday, October 2, 13

19. Summary
The top factors
influencing solarPV
electricity prize
1.The number of PV-modules
installed - or the kWPeak of the PV-
system
2.The geographic location of the PV-
system and the mounting method
3.The loan credit for financing the PV-
system.
Wednesday, October 2, 13

20. Wednesday, October 2, 13

21. 600 700 800 900 1000 1100 1200 1300 1400
0.1
0.2
0.2
0.3
0.3
0.4
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Drivers of solarPV electricity prize
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
6% credit small PVS-2013
4% credit large PVS-2013
4% credit small PVS-2013
6% credit large PVS-2013
Wednesday, October 2, 13

22. 600 700 800 900 1000 1100 1200 1300 1400
0.1
0.2
0.2
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0.3
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Drivers of solarPV electricity prize
Electricityprize(Euro/kWh)
Specific Yield (kWh/kWp)
6% credit small PVS-2013
4% credit large PVS-2013
4% credit small PVS-2013
6% credit large PVS-2013
Hamburg Barcelona
• Large PV-systems are cheaper
than small systems
• Sunny places produce cheaper
solar electricity
• The loan credit plays a crucial
role
Wednesday, October 2, 13

23. References
European map of solar potential
http://re.jrc.ec.europa.eu/pvgis/
Cost of components of PV-systems:
http://www.100-days.net/en/projekt/pv-school/news
More eBooks on solarPV:
• http://www.gomicromorph.com/goMicromorph/Publications.html
• https://itunes.apple.com/gb/book/planning-installing-photovoltaic/
id699389543?mt=11
• http://www.greenpro.de/index.html
and the Häberlin book under pv-test.ch or directly at Wiley’s:
•http://eu.wiley.com/WileyCDA/WileyTitle/
productCd-1119992850.html
Wednesday, October 2, 13

24. See us on
★Twitter:
https://twitter.com/goMicromorph
★LinkedIn:
http://www.linkedin.com/in/gomicromorph
★Blog:
http://gomicromorph.blogspot.com/
★Web:
http://www.gomicromorph.com/
★Apple iTunes Store:
https://itunes.apple.com/ch/artist/luc-feitknecht/id513205568?l=en&mt=11
★YouTube
http://www.youtube.com/user/goMicromorph?feature=watch
Wednesday, October 2, 13