Photovoltaic panel delamination method diagram

How does delamination affect a PV module?

Apart from module reliability and performance, delamination can have a severe impact on the safety of the PV module. It has been reported that delamination at the edge of the PV module can cause electrical risk that can affect the module as well as its installation .

Does backsheet delamination affect the optical performance of PV modules?

Backsheet delamination does not have a direct impact on the optical performance of the PV module, however, delamination at the front-side at cell-encapsulant or glass-encapsulant interface can directly impacts the module operation. In this regard, the grey appearance along the front side delamination has been investigated in detail.

Are PV modules delaminated?

Multiple studies have examined delamination in PV modules based on their origin [, , ], type [10, 17], operating mechanism [, , ], environmental factors responsible [, , ], and testing techniques [, , , , ].

What is the delamination threshold of different interfaces in PV modules?

To examine the delamination threshold of different interfaces in PV modules in individual capacity, a single cantilever beam methodology has been used. Herein, the individual layer such as backsheet structure or encapsulation is mounted between the single cantilever beam and underlying layers of the structure as shown in Fig. 9 (a).

What causes delamination in field-aged PV modules?

Delamination in the field-aged PV modules has been prominently observed on the cells over the junction box or along the busbars within a cell. It can be due to the presence of relatively high operational temperature of the cells along busbars and over junction box owning to thermal barrier to heat flow.

Which test sequences are used to examine delamination of PV modules?

While some of these tests namely DH and PID have been widely used to examine delamination. Other test sequences involving UV radiation, TC, HF and DML pertain to specific studies undertaken to investigate the susceptibility of PV modules to delamination at different interfaces.