Sunshine is our business.
What makes a good solar module
Frank Heise / June 2011
AGENDA
About Centrosolar
What we take care of
About Centrosolar
2
ORGANISATION
Centrosolar
Sonnenstromfabrik
Wismar
Renusol
Köln
Centrosolar Glas
Fürth
Solarsquare
Schweiz
Centroplan
Geilenkirchen
Centrosolar AG
Hamburg
Paderborn
Kempten
International Sales
Organisations Spain, France, Italy, Greece,
Benelux, USA, SAS
Solar Key Components Integrated Systems
HISTORY OF SONNENSTROMFABRIK
3
August 2001
foundation as
SOLARA
Sonnenstromfabrik
Wismar GmbH
2003
expansion in
the TGZ +
additional
warehouse
2006 SOLARA AG
becomes part of the
Centrosolar AG
2001 1. Step in
„Technology- and
commercial centre
Wismar“ at
University Wismar
-2008 new name
CENTROSOLAR
Sonnenstromfabrik
GmbH
2005 new facility
(1000 m²) +
additional
warehouse
2008
Construction of new
site and facility
(15,000 sqm)
2010
Expanding to
200 MWp
About Centrosolar
2011
Expanding to
300 MWp
1996
Founding of
SOLARA AG
4
0
50
100
150
200
250
300
350
2001 2003 2005 2008 2009 2010 2011planned
Capacity growth in MWp of Sonnenstromfabrik
Capacity growth in MWp ofSonnenstromfabrik
About Centrosolar
CONSTANT GROWTH
One stop shopping at Centrosolar
5
About Centrosolar
SYSTEM SUPPLIER
6
SHOCK THERAPY
What makes a good module
What makes a good module
7
External
Product certification: IEC61215 /IEC61730/UL1730
Periodical factory inspection VDE, TÜV und UL
Certified Quality- and Environmental Management System
at CS Sonnenstromfabrik in Wismar according
ISO 9001:2008 and ISO 14001:2009
ISFH and Fraunhofer ISE: round robbin (modul power
confirmation)
Fresenius Institut: EVA curing rate (long term stability
assurance of EVA)
UV- and Climatic camber test (damp-heat, thermal-cycling,
humidity freeze)
QUALITY AND CERTIFICATION
REKNOWN HIGH QUALITY COMPONENTS
8
What makes a good module
CONTROLLING SOLDERING QUALITY BY BEST PROCESS
10
Induction Soldering
-Low stress on cells
-Fast process
Hot Pin Soldering
-Stable process
-Process optimized for all
material cobinations
Hot Air Soldering
-Low stress on cells
-No touch of cells
What makes a good module
What makes a good module
11
INHOUSE TESTS
Internal Supplier qualification and evaluation, inclusive factory inspection
for all key suppliers
Detailed production control processes and control steps
Customer complaint analysis and systematical corrective action
implementation
Continuous improvement process
Knowledge influences supplier qualification
Plan to certify CS AG according ISO 9001 within this year
12
Cell tabbing & stringing
layup
interconnection of
strings, sheet feeding Lamination
Post lamination Framing
Measure-ment;
Packing
Solar cell
String connector
AR glass
Back skin EVA foil
Packaging
Connectors
Junction box
Aluminium frame Edge corner piece
What makes a good module
MODULE PRODUCTION PROCESS
QUALITY MONITORING
13
• Check of incoming goods
• Declaration of own charge system
• In house testings
• Field experience
• Test system on the factories roof
• Definition of supplier requirements
• Supplier audits
What makes a good module
FIELD EXPERIENCE
14
What makes a good module
200kW power
grid connected
different modules
different materials
datalogging
INHOUSE TESTINGS
15
What makes a good module
UV- and climatic
camber test
temperature
variation
damp-heat-test
reactivity of BSF
EVA curing rate
development of
own test
procedures
mechanical stress
test for frames,
glas, complete
modules
PULL-OFF-TEST OF SOLDER-CONNECTION AND EL-TESTING
16
What makes a good module
17
Junction box
- kind of protection: IP65
- CE conform
- Safety Class II
- robust and water proof
Bypass diode (Schottky diode)
- low voltage drop in case of bypassing
low power consumption
- ultra low reverse current (max. 5mA)
- wide temperatur range
- ensure modul power despite shadows
Connectors
- contact security
- small dimensions
- low transition resistance
- simple connect
Cable
- very robust and flexible
- large cross-section for high
currents
- resistance against abrasion,
chemicals,
weather and UV
What makes a good module
WE ALSO TAKE CARE OF
AND IF EVERYTHING WORKS WELL
18
Centrosolar
S-Series
or
Centrosolar
S-Class
modules
is
the
result
Sunshine is our business.
Thanks for your attension!
19
www.centrosolar.com
ISIN: DE0005148506
Prime Standard Deutsche Börse
This document contains forward-looking statements and forecasts based on assumptions and estimates made by CENTROSOLAR
Group AG management. While we assume that the expectations of these forward-looking statements are realistic, we cannot
guarantee that the expectations will prove to be correct. The assumptions may conceal risks and uncertainties which may lead to
actual results significantly divergent from those made in the projective forecasts. The factors that can cause such a divergence
include: changes in foreign exchange control or the economic and business environment, currency exchange rate fluctuations, the
low market entry barriers for competitors, insufficient acceptance of new products or services and changes in corporate strategy. No
update of the projected forecasts contained herein is planned, nor does CENTROSOLAR Group AG assume any obligation to do so.
Complete
Systems
Planning and
Projecting
Mounting
Systems
PV-Glas
Module
Manufacturing
Stand Alone
Systems
Thin Film Roof Integration
Sunshine is our business.