Strong Show By Indian Manufacturers In KIWA PVEL 2024 Module Scorecard

Highlights :

  • A record 56 manufacturers made the cut as top performers in the 2024 scorecard from Kiwa PVEL
  • Indian manufacturers continued to improve their presence with many more making it to the lists
Strong Show By Indian Manufacturers In KIWA PVEL 2024 Module Scorecard

The 2024 KIWA PV Evolution Labs (KIWA PVEL) module reliability scorecard is out. 2024 is the 10th edition of the widely tracked scorecard. Considered one of the leading global indicators of module quality, the scorecard this year features a record 53 manufacturers and 388 module types from across the world that have earned the right to be called “Top Performers”.  While the higher numbers are also a reflection of the spread of PV cell and Module manufacturing to more regions, particularly India and the US, the annual report has also recorded the highest percentage of module failures in its 10-year history, with two-thirds of manufacturers notching up at least one test failure.

KIWA PVEL Reliability Scorecard Findigs

Record Performers, Record Failures As Well

This year, KIWA PVEL has also added a hail testing category, perhaps reflecting the increasing risk of extreme weather in more and more regions of the world where solar is widely adopted.

For the scorecard, PVEL runs the PV Module Product Qualification Program (PQP), scoring solar modules following the results of various testing procedures, including thermal cycling, damp heat, hail stress sequence – with a new Top Performer in that category – backsheet durability, LID/LeTID sensitivity and more. In total, there are 10 different categories assessed. From India, EMMVEE makes it as the top performer across all seven test categories, while regulars such as Adani Solar, Vikram Solar, Waaree have also maintaining their presence, with Premier Energies turning in a strong performance as well. New entrant ReNew has fast tracked its way into the top performers list as well. Saatvik Solar, Tata Power, and Goldi Solar are the other Indian names in the list.

Thermal Recycling Tests

Customers will be interested to now that in the thermal recycling tests, 84% of BOMs tested degraded by < 2%, with a median degradation of 0.8% following TC. But the number of outliers and failures has increased.
• The median power loss was 0.6% for glass// glass versus 1.7% for glass//backsheet. 95% of glass//glass BOMs had < 2% degradation following TC600 versus only 50% of glass// backsheet BOMs.
• The median degradation rate for PERC and TOPCon was 0.6 and 0.7%, respectively, but the number of power degradation failures was higher for TOPCon modules. HJT BOMs showed improved TC results compared to previous years.

The Scorecard this year has 20 manufacturers making their debut as top Performers , while only nine of the 53 manufacturers listed as Top Performers made the cut across  all categories as such. And only four specific models from of these manufacturers were Top Performers in every test category.

High Failure Rate

Reflecting the risks of failures and manufacturing errors at a period of frenetic expansion, 66% of module manufacturers have experienced at least one test failure. This is the highest recorded percentage since the inception of the scorecard. Failures at the bills of materials (BOM) level have also increased from 32% in 2023 to 41% in 2024. These include failure types of junction box-related issues, power loss and an increasing number of modules with delamination issues.

The PVEL PQP’s Hail Stress Sequence (HSS) focusses on glass breakage with glass backsheet less prone to glass breakage than 2.0mm heat strengthened glass-glass modules. It also claims to surpass IEC/UL minimum hail requirements testing PV modules against a range – from 35mm to 55mm – of hail impacts.

According to KIWA PVEL, Breakage rate of 50mm hail on glass-glass modules was of 89%, compared to 40% for glass backsheet modules. For glass-glass modules, the rear glass broke 40% of the time for modules that have experienced glass breakage.

The executive summary of the report can be accessed here.

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Prasanna Singh

Prasanna has been a media professional for over 20 years. He is the Group Editor of Saur Energy International