EL Imaging - Why it matters

Electroluminescence imagining

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Location: Bahawalpur, Pakistan

Test type: Electroluminescence Imaging

Risk: Potential Damage to PV Modules

About Us

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A 100 MWp PV project was installed in Bahawalpur, Pakistan. Commissioned in 2015, the

plant contributes 100MWp of power into country's national grid.

During the construction phase, a severe sand storm hit the region. Due to high winds, some

PV Modules that were improperly installed fell off the mounting tables. There was a high

chance that the PV cells in these PV modules have suffered serious damage as a result of

the fall.

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In order to verify this, the panels were transported to our testing facility for EL imaging. The

damaged panels were to be replaced so each PV array would continue to function normally.

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All Panels were visually

inspected before

subjecting to EL imaging.

As in most cases, it is

difficult to identify damage

to the cells within the

modules without proper

imaging.

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Upon EL imaging, it was

observed that there was a

significant damage to the

cells in some panels.

Multiple cracks and large

inactive regions meant

that these panels will

function poorly if installed

in a PV array and would

decrease the performance

of other modules within

that array.

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PVLABGERMANY

Dr. Jürgen Arp

Gartenstrasse 36

D- 14482 Potsdam

+ 49 331 70 40 30 11

+ 49 331 70 40 30 22

[email protected]

PVLABPAKISTAN

83 A/E-1, Gulberg III, Lahore

Tel. +92 423 578 2266

Site address:

QA Solar Park, Bahawalpur

[email protected]