Table 4
Relative change of maximum power at STC normalized to one year (ΔP/year) estimated from outdoor IV data. For modules M1 to M7 data until Apr. 29, 2015 are included. For module M8 until Dec. 31, 2015, in order to cover a minimum of one year.
| Module | First day | Contact | Maximum power | ΔP/year | Decline of FF |
| strip coating | measured outdoor [W] | [%] | [% abs./year] | ||
|
|
|||||
| M1 | Aug. 23, 2013 | SnPbAg | 183.7 | –29.6 | –14.38 |
| M2 | Aug. 29, 2013 | Ag | 226.5 | –2.4 | –1.28 |
| M3 | Feb. 13, 2014 | Ag | 217.4 | –2.4 | –0.59 |
| M4 | Feb. 13, 2014 | soldered | 215.7 | –2.5 | –1.26 |
| reference | |||||
| M5 | Feb. 13, 2014 | Ag | 209.4 | –2.5 | –1.27 |
| M6 | May 2, 2014 | Ag | 222.4 | +0.2 | –0.76 |
| M7 | May 2, 2014 | Cu | 168.0 | –4.5 | –2.74 |
| M8 | Sep. 4, 2014 | Ag | 204.4 | –2.5 | –1.99 |
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