Quality

The expected lifetime of PV inverters is significantly shorter than that of modules. In many projects, inverter replacement is included in financial calculations from the start, despite the high costs. Research is being conducted into the causes of faults to develop more durable inverters and components. But plant design can already improve the lifespan of inverters in use today, reports pv magazine Germany’s Marian Willuhn.

Schüco has expanded its recent warning letter about potential solar panel defects to include more products. The new list includes PV modules the company delivered between 2010 and 2014.

When choosing a solar power plant, individuals and businesses pay the most attention to its power – after all, this will determine how much electricity will be produced. Other equipment, systems and sensors that allow monitoring and analysis of the operation of the power plant are often underestimated. But they shouldn’t be: the solar power plant will be used for several decades, so various failures and poor-quality monitoring can have a significant impact on the efficiency of electricity production.

In a study that began in 2016, US scientists purchased 834 PV modules, representing seven manufacturers and 13 module types, and installed them in various climate conditions to observe their performance over time. The results show that, while plenty of opportunities still exist to extend module lifetimes and reduce performance loss in the field, reductions in the manufacturing cost of PV have not come with an increase in their degradation rate.

Sun simulator is considered to be the heart of a testing or a calibration lab used to test solar PV panels, indoor under controlled and repeatable conditions. There are various parameters to be considered while selecting one.

Indian solar manufacturer Vikram Solar has been listed as a top performer in PV Evolution Labs (PVEL) PV Module Reliability Scorecard 2022 for its half-cut-cell, multi-busbar bifacial PV modules. 

Indian solar manufacturer Adani Solar has been ranked as a top performer in PV Evolution Labs’ (PVEL) 2022 PV Module Reliability Scorecard. The scorecard ranks PV modules based on lab and field test results for performance and reliability.

Anil Kottantharayil currently leads the Centre for Research in Nanotechnology and Science, as well as the Sophisticated Analytical Instrument Facility, at the Indian Institute of Technology (IIT) Bombay. He works on high-efficiency crystalline silicon solar cells, the impact of dust on solar panels, and the long-term reliability of photovoltaic modules.

The idea behind introducing the Approved List of Models and Manufacturers (ALMM) was to have a quality benchmark for solar modules. However, in its current form, it is more of a non-tariff barrier for foreign manufacturers and limits solar developers in terms of the choice of module wattage and make.  

As PV waste is set to rise rapidly in the coming decades, India needs to invest in efficient recycling technologies and devise a clear-cut policy for the safe disposal of PV waste. Guidelines for stringent quality checks and validation for both imported and locally produced solar panels are also needed to avoid early-loss solar waste.