A week after the Chinese government published a package of measures for subsidy-free solar that Hanergy said yesterday will continue to prod manufacturers into driving down solar costs, news has emerged of two more efficiency records in the world’s biggest solar market.

Ningbo-based cell and module maker Risen Energy claimed a 21% conversion record with its JÄGER HP 72-cell module and last night, wafer and module maker LONGi claimed a world record 24.06% rate for a bifacial PERC cell.

Risen, which says its results have been TüV-SüD certified, said its landmark “rewrites the world record book of PERC module conversion efficiency”.

“Risen Energy has been dedicated to be the innovated technology top runner for high efficiency PERC cell and module mass production,” said the company in a statement to announce the record. “We are leading the industry for new technological cell and module research and mass production, especially for PERC [and] PERC+contact passivation … With our high efficiency and highly reliable module products, Risen Energy is devoted to [creating] added values for our clients.”

LONGi beats own record

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Xi’an-based LONGi beat its own record with a 24.06% record that it says has been confirmed by the National Center of Supervision and Inspection on Solar Photovoltaic Product Quality in China (CPVT), and which bettered the 23.6% landmark it set last February.

According to a statement released by the company, the CPVT tested the monocrystalline silicon PERC cell in a standard wafer dimension of 156.75×156.75mm² provided by LONGi Solar. The sample cells were measured under standard test conditions for current-voltage characteristics as a function of load.

“LONGi Solar has made great strides in setting world record PERC solar cell conversion efficiencies as we demonstrate the continuing ability to provide high-efficiency products to the global solar market,” said Li Wenxue, president of LONGi Solar. “Our latest record solar cell conversion efficiencies also endorse the success of our R&D investments, which have set the benchmark for the industry in recent years.”