Download - 07 Fuji Electric Solar Cell
Fuji Amorphous Silicon Solar Cells Fuji Amorphous Silicon Solar Cells
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17/Oct/2011Fuji Electric Co., Ltd.
Features
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1. Fuji’s modules are light-weight and flexible.
2. Fuji’s modules are mass-produced by a special roll-to-roll process.
3. Fuji’s modules have high output voltages made possible by their unique
Features of Fuji flexible amorphous PV modules
Fuji’s photovoltaic modules help develop new applications and
new markets.
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3. Fuji’s modules have high output voltages made possible by their unique
structure.
4. Fuji’s modules generate more power than crystalline silicon modules annually.
5. Fuji’s modules can be mounted on curved surfaces.
FWAVE Cell Structure
Top Layers
Sunlight
i(a-Si)
p
ITO
0.6
0.8
1.0
0.6
0.8
1.0
Top + Bottom
effic
iency
Transparent electrode (+)
E ncaps ulant
E TF E
C ell
E TF E
FWAVE cell
FWAVE module
- The top layer absorbs short wave lengths of light.
- The bottom layer absorbs long wave lengths of light. E ncaps ulant
E TF E
C ell
E TF E
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Top
Tandem Structure of FWAVE cell
50µmmmm
Bottom Layers
1111µmmmm
Film
n
i(a-SiGe)
p
n
Metal
Metal
0.0
0.2
0.4
300 400 500 600 700 800 900 1000
波? [nm]
0.0
0.2
0.4
300 400 500 600 700 800 900 1000
波? [nm]
Bottom
Wave length (nm)
Colle
ction
A tandem structure allows FWAVE modules to absorb a wide solar spectrum and to increase their efficiency.
Cell
Metal electrode (-)
Metal (connecting) electrode (+/-)
Plastic film substrate
FWAVE Cell
FWAVE modules have a unique SCAF structure which allows electrodes to be connected without wire.
FWAVE wire-less structure
ITOTransparent electrode(+)
Current collection holes Series connection holes
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Rear metal electrode(-)
SCAF : Series-Connection through Apertures Formed on Film Substrate
Plastic film substrate
Laser Scribed lines
Top & bottom layers
Film
n
i(a-SiGe)
pn
i(a-Si)
pITO
Transparent electrode(+)
Connection electrode(+,-)
A-Si has 10% higher power generation per year than C-Si
Power Generation Comparison between A-Si & C-Si
Annual power generation comparison
66668888
10101010G
ener
ate
d P
ow
er (
Wh
/day)
/ R
ate
d P
ow
er (
W) 0.80.80.80.81.01.01.01.01.21.21.21.2
Gen
erate
d E
ffic
ien
cy/R
ate
d E
ffic
ien
cy
Generated Power Fuji (a-Si/a-SiGe) Generated Power Crystalline (c-Si)Efficiency Fuji(a-Si/a-SiGe) Efficiency Crystalline(c-Si)
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000022224444
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb MarGen
erate
d P
ow
er (
Wh
/day)
/ R
ate
d P
ow
er (
W)
0.00.00.00.00.20.20.20.20.40.40.40.40.60.60.60.6
Gen
erate
d E
ffic
ien
cy/R
ate
d E
ffic
ien
cy
20022002200220022001200120012001 2003200320032003 2004200420042004
Flexible
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Our solar modules still have high power generationin summer though 6.5 years have passed since theywere installed.
Operation record of Fuji Yokosuka Site
Peak power generation 6.2KW
Cumulative power generation 53.5 MW
Period January 1999 to June 20052000200020002000 1 .51 .51 .51 .5
Efficiency Change
Efficiency Change
Efficiency Change
Efficiency Change
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0000500500500500100010001000100015001500150015002000200020002000
Jan-99Jan-99Jan-99Jan-99 Apr-99Apr-99Apr-99Apr-99 Jul-99Jul-99Jul-99Jul-99 Oct-99Oct-99Oct-99Oct-99 Jan-00Jan-00Jan-00Jan-00 Apr-00Apr-00Apr-00Apr-00 Jul-00Jul-00Jul-00Jul-00 Oct-00Oct-00Oct-00Oct-00 Jan-01Jan-01Jan-01Jan-01 Apr-01Apr-01Apr-01Apr-01 Jul-01Jul-01Jul-01Jul-01 Oct-01Oct-01Oct-01Oct-01 Jan-02Jan-02Jan-02Jan-02 Apr-02Apr-02Apr-02Apr-02 Jul-02Jul-02Jul-02Jul-02 Oct-02Oct-02Oct-02Oct-02 Jan-03Jan-03Jan-03Jan-03 Apr-03Apr-03Apr-03Apr-03 Jul-03Jul-03Jul-03Jul-03 Oct-03Oct-03Oct-03Oct-03 Jan-04Jan-04Jan-04Jan-04 Apr-04Apr-04Apr-04Apr-04 Jul-04Jul-04Jul-04Jul-04 Oct-04Oct-04Oct-04Oct-04 Jan-05Jan-05Jan-05Jan-05 Apr-05Apr-05Apr-05Apr-05Generated Power[kWh]
Generated Power[kWh]
Generated Power[kWh]
Generated Power[kWh]
-0 .5-0 .5-0 .5-0 .50 .00 .00 .00 .00 .50 .50 .50 .51 .01 .01 .01 .01 .51 .51 .51 .5
Efficiency Change
Efficiency Change
Efficiency Change
Efficiency Change
Generated AC power
Efficiency change
Applications (1) - Building
Metal roof integrated PVs Metal roof integrated PVs PV mounted on ship’s walls and roofs
Mounted on curved
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BIPV
PV mounted on walls Tile roof integrated PVs Sun shade roofs
Mounted on curved
surfaces
Applications (2) - Awning
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Applications (3) - Mobile Solar Unit
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Portable retractable module 12-15W
Charger/ Louver
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Mobile Application of Solarmodule
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Mounted on Bus Hot Air Balloon
Applications (3): Large roofs
School Gymnasium(1)
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School Gymnasium(1)
Gymnasium(2) Wavy roofs