1. Hight temperature module
New product of Jurawatt GmbH

2. Need for hight temperature modules
Standard modules made for regions with moderate temperatures (e.g. Germany)
Trend: Installation of modules in hotter regions
(Southern Europe, deserts, tropic s)
→ higher temperature, higher humidity (tropics)
Typical temperatures in modules:
Central Europe
Min. (night) -10° C
Max. (day) 60 – 70° C
Desert
0° C
75°-85° C
Dr. Claudia Gemmel

3. Modul setup Solar glass Embedding material (e.g. EVA) 3 Cells
4 Embedding material (e.g. EVA) 5 Back sheet
Dr. Claudia Gemmel

4. Embedding material Standard material: EVA Mechanical properties EVA:
0° C to -10° C: Embrittlement
above 60° C: material gets semifluid, decreasing adhesion
→ mechanical stress: Delamination can happen
→ Not suitable for very high / low temperatures
Jurawatt High Temperature Module
→ new embedding material, better properties
Dr. Claudia Gemmel

5. Mechanical Properties
new Jurawatt Embedding material
→ Konstant mechanical properties over wide temperature range
Dr. Claudia Gemmel

6. Water uptake → less water uptake new Jurawatt Embedding material
Dr. Claudia Gemmel

7. Potential induced degradation (PID)
Problem:
High voltages → Leakage currents in module
→ electro chemical corrosion → Power losses
cell
glass e -
embedding
cell e
U = 1000V -
frame
back sheet
Dr. Claudia Gemmel

8. Potential induced degradation (PID)
Leakage currents depend on temperature and humidity*
Temperature
Leakage current
Rel. Humidity 0%
Rel. Humidity 50%
*Source: S. Pingel, Workshop PV Module Reliability, Berlin 2011
Dr. Claudia Gemmel

9. Jurawatt – High temperature module
New embedding material
→ Risk for leakage currents (PID) is minimized due to:
Better isolation properties
Konstant properties
over wide temperature region
Less water uptake
→ less leakage currents
→ less corrosion, also at high temperatures
→ High module power over long time period
Dr. Claudia Gemmel

10. Advantages of Jurawatt high temperature moduls:
Summary
Advantages of Jurawatt high temperature moduls:
Konstant mechanical properties
Over wide temperature range (-50°C bis 100°C)
Less water uptake
(factor 10 less than EVA, factor 100 less than PVB)
Better isolation
(factor 100 better than EVA)
smaller risk for leakage currents (degradation)
→ suitable for application at
higher temperatures, higher humidity
→ Higher module power over longer time period, also at extreme climate
Dr. Claudia Gemmel

11. THE BRAND MODUL OF TURKEY