Chinese solar module manufacturer Risen Energy has launched a new heterojunction (HJT) solar module featuring a dual-layer optical design intended to reduce glare in installations near airports and residential areas.
The new module is part of the company’s Hyper-ion series and is designed for projects with stringent glare-control requirements, where reflected sunlight could cause visual disturbances, Risen said.
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The Hyper-ion series module uses a dual-layer optical design and achieved a specular reflectance as low as 0.85%, according to the manufacturer.
The module combines a micron-scale matte glass surface, produced using a process the company calls “nanocrystalline phase reconstruction”, with technology designed to suppress internal reflections.
According to the manufacturer, tests conducted by Germany’s TÜV Rheinland recorded a maximum daylight glare probability (DGP) of 0.30, below the Class AAA threshold of 0.35. Maximum glare luminance was measured at 3,463.94 cd/m², compared with a limit of 20,000 cd/m², while specular reflectance was as low as 0.85%.
Risen said its PV optical safety expertise also extends to standardisation. The company is the principal drafting organisation behind T/CPIA0119-2025, a group standard covering photovoltaic module glare testing.
The newly launched module, designated RSM132-8-710-730BHDG, is available in five power ratings: 710W, 715W, 720W, 725W and 730W. Conversion efficiencies range from 22.9% to 23.5%, while open-circuit voltages range from 50.01 V to 50.33 V and short-circuit currents from 18.00 A to 18.38 A.
The bifacial module incorporates 132 HJT cells and measures 2,384 mm × 1,303 mm × 33 mm, with a weight of 37.5 kg. Its construction includes 2 mm anti-glare glass on the front, 2 mm heat-strengthened glass on the rear and an anodized aluminium alloy frame.
Under bifacial nameplate irradiance conditions, with rear-side irradiance of 135W/m², the module delivers between 796W and 818W, according to the manufacturer’s specifications. With a 10% rear-side power gain, its equivalent power output ranges from 781W to 803W.
The module has a maximum-power temperature coefficient of -0.24%/C and an operating temperature range of -40 C to 70 C. Its maximum system voltage is 1,500V, and it can withstand mechanical test loads of up to 5,400 Pa on the front and 2,400 Pa on the rear, depending on the installation method.
The company specifies an annual degradation rate of 0.3% over 30 years, with guaranteed power output of 90.3% at the end of the warranty period.
Last year, Risen reported that its mass-produced HJT modules had achieved an average power output of 740Wp, while cell conversion efficiency reached a company-record 26.61%.
