Modules & Upstream Manufacturing

Looking to answer one of the year’s big questions concerning solar technology, energy consultancy DNV GL was invited by Trina Solar to compare the performance of its modules based on the 210mm wafer with the 166mm and 182mm dimensions also introduced recently. The analysis revealed an advantage for modules incorporating the largest wafer, based on simulation of bifacial systems at two locations in Spain and the United States.

German standards body TÜV Rheinland is introducing a new testing and certification program for pv modules. The program incorporates component specific tests and ongoing, random testing of running production lines. Hanwha Q Cells assisted in the development of the program, and this week announced it is the first manufacturer to receive the new Quality Control PV Certification.

The Chinese giant, which had a $40 billion stock price yesterday, has announced it shipped 20 GW of solar panels by Monday.

Indian startup Solavio Labs has designed a modular, autonomous bot to clean solar panels. The system is purportedly compatible with most structures, mounting areas, and climate conditions.

Scientists in Portugal have proposed a new framework to simulate mismatch conditions at the cell level. They claim the tool is particularly suitable for simulations of small PV systems with few module strings.

And Risen has agreed to buy 2.25 billion wafers from monocrystalline wafer manufacturer Wuxi Shangji Automation, while Trina has cornered another 30,000-ton slice of the global polysilicon market.

In pv magazine’s second roundtable session, Advanced technologies, the U.S. storage market came under the spotlight – in particular, the lessons that can be learned from solar as the market moves towards greater maturity. Also under discussion was the trend among PV manufacturers to producing ever larger cells and modules in the continuous drive to bring down LCOE. But is big necessarily better?

The Netherlands has allegedly evaded anti-dumping and countervailing duties imposed on solar imports from China, Taiwan and Malaysia between May 2015 and March 2017, according to the European Commission. The Dutch government said the claims from Brussels are not justified.

Researchers in China are proposing a new technique to recover polyethylene glycol terephthalate (PET) and ethylene-vinyl acetate (EVA) in solar panels at the end of their lifecycle. The two materials represent around 15% of the total material in a wasted solar cell, with a share of 10% for EVA and 5% for PET, respectively.

A U.S.-Pakistan research group has created a new self-cleaning mechanism for standalone PV systems up to 5 kW in size. The system increases power yields by around 35%, while its payback period is estimated at around five years.