HJT Cost structure and market potential

1. HJT Cost structure and market potential
26.05.2014 BIFI Workshop 2014
Dr. Dirk Habermannn

2. Agenda
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Technology
 Bi-facial solar cell concepts for p and n-type silicon
 Module design
 Module data and module simulation
Cost structure and market potential
 Cost structure of different bi-facial solar sells
 CAPEX, OPEX calculation and comparison of different bifacial solar
technologies
 LCOE
Summary

3. Basic data
Fixed Values:
 Wafer price: 0.98 €/wafer for p- and n-type wafer
 Module: Material cost w/o cell: 42.3 €/Module
 Cell: Metallization based SWCT adapted screen print technology
and set for all cell technologies
MeyerBurger/01.01.2013
3Source: NASA
Relative albedo distribution of the earth
data from 7.-22.4.2002

4. PERL
Examples of bifacial Solar Cell
Structures (n- and p-Type Si)
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Bifacial(double diffused)
PERT
HJT BiFacial
Bifacial (double diffused)
PERCBiFacial
n-PERT
n-MWT
p-Si
Al-BSF
AlOx
n++
Al
Ag
ARC
p-Si
p++
AlOx
n++
Ag
Ag
ARC
p-Si
p++
AlOx
n++
Ag
Ag
ARC
p-Si
p++
AlOx
n++
Ag
Ag
ARC
n-Si
ai –Si
Ag
Ag
ITO
ap++-Si
ai –Si
an++-Si
n-Si
p++
n++
Ag
Ag
SiOx/SiNx
n-Si
p++
n++
Ag
Ag
SiOx/SiNx
n-Si
p++
n++
Ag
Ag
SiOx/SiNx
HAT-SAAE: SNEC 2014
PERT 20,2%

5. Analyzed Cell structures
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Bifacial(double diffused)
HJT BiFacial
Bifacial (double diffused)
PERCBiFacial
p-Si
Al-BSF
AlOx
n++
Al
Ag
p-Si
p++
AlOx
n++
Ag
Ag
ARC
n-Si
ai –Si
Ag
Ag
ITO
ap++-Si
ai –Si
an++-Si
n-Si
p++
n++
Ag
Ag
SiOx/SiNx
p-Si
Al-BSF
AlOx
n++
Al
Ag
ARC
PERC HJT
n-Si
ai –Si
Ag
Ag
ITO
ap++-Si
ai –Si
an++-Si
PERL
p-Si
p++
AlOx
n++
Ag
Ag
ARC
Reference
(monofacial)

6. Data base: Module design
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TCO module cost structure based on High power SWCT modules
Module Design :
• 60 Cells/module
• Cell distance: 3 mmm
• String distance: 3 mm
• Pseudo square 15,5 mm
• Front: 2.2 mm Glass with ARC structured
• Back: 2.2 mm Glass without ARC structured
• Cell connection: MB SmartWire Technology
5% higher power output with SWCT compare to conventional connection
technology

7. SmartWire Connection Technology
(SWCT)
7
HJT-SWCT Bifacial Module
P MPP 307,1 W
I SC 9,01 A
VOC 44,38V
FF 76,80%

8. HJT-Bifacial Module Data
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Module efficiency
Front side: 18.1-18.4%
Rear side: 16%
White backsheet
Black backsheet
Only rel. 13% efficiency
loss on rear side
compare to the front
side
!

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 Separated analysis of front and rear electrical
performance with a black background is effective for
classification of bifacial modules.
 White backsheet give best data for the comparison with
standard modules and is used for the module simulation
HJT-Bifacial Module Data

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Data base for cost analysis
and module simulation
Cell data*
Module
simulation
Solar Cell
Cost analysis
Module production Module analysis
check
Bill of material
*real data and expected data
respectively

11. Module Simulation
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Measured cell data
Measured module data
Simulated module data*
* Simulation: with white backsheet
Simulation and measured
module data are equivalent

12. Cost structure on cell level: OPEX
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-0.9% OPEX /Wp
+1.7% OPEX/Wp
• Bifacial design will slightly reduce the OPEX cost for PERC
structure
• HJT shows a small increase in the OPEX cost

13. MeyerBurger/01.01.2013
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-0.04%
CAPEX /Wp
+0.09%
CAPEX /Wp
The change from mono- to bifacial Cell designs has nearly no impact on
the CAPEX of HJT and PERC cell lines.
Cost structure on cell level: CAPEX

14. TCO on cell level of different solar
cell technologies
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Ref.
monofacial bifacial
Ref.
HJT cells (mono and bifacial) with
best TCO/Wp cost
structure on cell production
level.

15. 15Relative minor impact of the bifacial cell design on the production cost structure
Cost structure on cell level

16. 16Similar cost structure for most bifacial cell designs
Cost structure on cell level

17. TCO Module Level
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monofacial bifacial

18. TCO Module Level
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+0.2%
-4.7%
Small increase of the
TCO for bifacial modules
enable a strong decrease
of the cost/Wp on
installation base.
HJT
PERC

19. Impact of the module efficiency
on the LCOE
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Europa, part USA
S-Europa, Asia
Arabia, Centr. Africa
Monofacial
Bifacial
+10% rear illumination
Status HJT Jan. 2014*
*HJT 23.5% typical cz n-Typ material qualityLCOE source: Manufacturing the solar future ed. 2014

20. Summary
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 The change from mono- to bifacial Cell designs has a minor impact
on the production cost of HJT and PERC cell lines.
 HJT shows the overall highest potential for bifacial application
 HJT bifacial cells show the best TCO/Wp cost structure on cell and
module production and LCOE level
 Bifacial modules have significant positive impact on the LCOE
 Bifacial HJT Solar Technology is actual the best solution for the
production chain from Cell to Module and finally End-users.
 HJT has the highest potential for higher efficiencies (>23.5%
proofed 2014) in future without additional Capex cost.

21. 21
MeyerBurger/01.01.2013
Thank you for your attention