Half-cut, bifacial, 20.5%-efficient PERC modules from Vietnam


Chinese solar module manufacturer Dehui is planning to increase the production capacity of its Vietnamese factory to 3 GW.

The company currently has annual module manufacturing capacity of 2.25 GW – and 1.5 GW for cells – at its sole production site, at the Dai Dong-Hoan Son Industrial Park, in Vietnam’s Bac Ninh province.

“The cell capacity is expected to be raised to 2 GW by April 2022 and 3 GW by April 2023,” the company told pv magazine. “Module capacity should reach 3 GW already at the end of next year.”

Of the current panel capacity, 700 MW of production lines are being used to produce a nine-busbar, half-cut, bifacial monocrystalline PERC module based on 166mm wafers. “Next year, the company will focus on mass production of 12-busbar panels based on 182mm wafers,” the spokesperson from the Jiangsu-based manufacturer added.

Popular content

The current version of the bifacial module series, the DH-M772F, is available in five variants with power outputs ranging from 425-445 W and efficiencies of up to 20.5%. Each panel features 144 half-cells, each measuring 166mm x 83mm, with overall dimensions of 2,094 x 1,038 x 35mm and a weight of 29.5 kg. The junction box has an IP 68 rating.

Operating temperature is between -40 degrees Celsius and 85 degrees Celsius and the open-circuit voltage operating temperature coefficient is -0.3% per degree (Celsius). The panels can be used in PV systems with a maximum voltage of 1,500 V. The manufacturer offers a 30-year power output guarantee for 84.95% of the initial yield.

*the article was updated to reflect that the panel's efficiency is 20.5% and not 22.5%, as we previously reported. The value of 22.5% was by mistake included in the statement issued by the company.

This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.