Quality

What is your recommendation for investors when buying PERC modules? Can LeTID loss be completely recovered in the field? Can one be sure that there is no LID and LeTID in n-type cells? Presenters, Andrea Viaro, head of technical service Europe, JinkoSolar, Stefan Roest , CTO, Eternal Sun & Spire Solar and Paul Grunow, technology consultant, board of the PI Photovoltaic Institute Berlin AG answer these and other questions from a recent pv magazine webinar.

The Victorian government is giving smaller solar installers eight months to sign up to the Clean Energy Council’s Solar Retailer Code of Conduct if they want to qualify for the Solar Homes program. For larger retailers, the deadline to become Approved Solar Retailers is July.

Quality assurance provider PI Berlin has found the solar industry has made significant improvements to module quality in the past six years and that, perhaps surprisingly, manufacturers in China and South East Asia are setting the standard by producing higher quality modules, on average, than other regions.

Whether caused by improper production processes, poor treatment in transport and installation, climate conditions or any other issue, performance reducing microcracks are a major source of stress for PV developers and project owners. Now, an EU funded research project has found that a different type of stress could provide a solution, and even “heal” some existing cracks.

PI Berlin plans to open a headquarters in Spain next year. pv magazine has spoken with Senior Consultant Asier Ukar about market expectations, the most recurrent quality failures in Spain, risks, certification and protectionism. “After 10 years, we return to Spain with much enthusiasm,” he told us.

What problems are being encountered and how to avoid them by learning from past mistakes? With booming installation rates across all segments of the Australian solar market, quality issues have been pushed to the fore, and quality assurance has become instrumental in shaping further uptake.

“Profitable yet risky”: This was one of the findings of a recent study, released in July, conducted by PI Berlin on behalf of Germany’s National Metrology Institute (PTB) when examining six Indian PV projects from the viewpoint of project quality. The report’s author Asier Ukar spoke to pv magazine in advance of his presentation on the subject at the Quality Roundtable at the Renewable Energy India conference next week.

The algorithm is said to be able to examine the relationship between weather forecast data and the projection of electric circuit parameters. Through this innovation, Purdue University researchers claim they can interpret the routinely collected maximum power point (MPP) time-series data, to assess the time-dependent “health” of installed solar modules.

The Indian Government must create a complete ecosystem to ensure the effective on-ground execution of its ambitious solar program, says Chakradhar Byreddy, Director–Renewable Energy, UL, Asia Pacific, during an interview with pv magazine. This includes investing in laboratory infrastructure, and skills for technical due diligence, energy yield assessment and forecasting.

China continues to grow in importance as a key source of components for solar trackers produced by the world’s leading tracker companies, in part since improvements in Chinese quality control have advanced significantly over the last few years.