Intersolar Europe 2017: Bifacial will be mainstream in two years says LONGi

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Zhenguo Lee (right) president of the Longi Group.

Bifacial modules will be the standard utility-scale PV product for LONGi Solar, according the company’s president.

Speaking to PV Tech at Intersolar Europe, Zhenguo Lee said that the company had a lead on the rest of the industry but expect them to follow shortly after.

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“Our plan in two years, is that [P-type mono PERC] bifacial modules will be our mainstream product and we expect that in three to five years this industry will be using bifacial. Except for certain residential applications, where there is not enough distance behind the panel,” he said.

“Customers only need to pay a little extra to get a big return from the back side. That’s the beauty of bifacial products,” he added, warning that it was important that for manufacturers to create some consistency around the panels and how specifications are presented to customers.

“As of today we don’t have product industry-wide standards for bifacial modules. We choose to list the front and rear power output so that customers can use these for their system design and assess what boost they can get from the rear,” said Lee.

According to LONGi, even grassland surfaces under a bifacial array can offer a 10% boost to generation, which it believes will ensure take-up of the technology in all markets, not just those where typical project sites have a high albedo such as on water or pale desert.

There is still more work to be done on balance of systems and other components however, to ensure the opportunity presented by bifacial is maximised.

“Our module has a unique junction box design to ensure that we avoid shading on the rear and we are working with tracker manufacturers on this too,” said Lee.

2 September 2025
Mexico City, Mexico
Intersolar Mexico is the leading platform for technology trends and B2B networking in Mexico's solar market. It focuses on photovoltaics, solar heating and cooling technologies, and energy storage. Together with the co-located events The GREEN Expo® and Aquatech Mexico, it has solidified its position as the largest gathering of professionals in the renewable energy and cleantech industry in Mexico since the debut in 2019. In 2024, the events hosted more than 400 exhibitors as well as 10,000 visitors and 12,000 industry professionals (total attendance). The sixth edition of Intersolar Mexico will take place from September 2 to 4, 2025 at the Citibanamex Center, in Mexico City.
7 October 2025
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PV Tech has been running an annual PV CellTech Conference since 2016. PV CellTech USA, on 7-8 October 2025 is our third PV CellTech conference dedicated to the U.S. manufacturing sector. The events in 2023 and 2024 were a sell out success and 2025 will once again gather the key stakeholders from PV manufacturing, equipment/materials, policy-making and strategy, capital equipment investment and all interested downstream channels and third-party entities. The goal is simple: to map out PV manufacturing in the U.S. out to 2030 and beyond.

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