South Korea-based solar module manufacturer Shinsung E&G has unveiled two new series of bifacial solar modules based on n-type tunnel oxide passivated contact (TOPCon) cell technology.

The new products include the SS-JM-TK series for ground-mounted solar installations and the SS-JM-TN series for floating photovoltaic and agrivoltaic applications. Both product lines are available in three versions, with nominal power outputs of 640 W, 645 W and 650 W.

The modules feature 156 bifacial monocrystalline solar cells and offer conversion efficiencies ranging from 22.89% to 23.25% under standard test conditions (STC).

The ground-mounted modules measure 2,465 mm × 1,134 mm × 30 mm and weigh 33.5 kg. The largest model, the SS-JM650TK, delivers a maximum power output of 650 W and an efficiency of 23.25%. It features an open-circuit voltage of 55.71 V and a short-circuit current of 14.52 A.

Under the manufacturer’s bifacial nominal power irradiance (BNPI) conditions, the ground-mounted series delivers power outputs of 700 W to 710 W, with corresponding efficiencies of up to 25.40%. Actual rear-side power generation depends on ground reflectivity and installation conditions.

The floating PV and agrivoltaic modules have the same length and width but feature a thicker, 35 mm frame. They also weigh 33.5 kg and provide maximum front-side power outputs of 650 W, with efficiencies reaching 23.25%.

Under BNPI conditions, the floating and agrivoltaic series delivers outputs of 705 W to 717 W, with the highest-rated model achieving a bifacial-equivalent efficiency of 25.65%.

Both product lines feature a dual-glass construction comprising 2.0 mm heat-strengthened glass on the front and rear sides, an anodized aluminum alloy frame, and an IP68-rated junction box with three bypass diodes.

The modules are designed for operation at a maximum system voltage of 1,500 V and temperatures ranging from -40 C to 85 C.

According to the manufacturer, the ground-mounted modules have a maximum power temperature coefficient of -0.34%/C, compared with -0.29%/C for the floating and agrivoltaic variants.

The ground-mounted series is rated for mechanical test loads of 5,400 Pa on the front and 2,400 Pa on the rear. The floating and agrivoltaic modules offer a 5,400 Pa test-load rating on both sides.

Shinsung E&G provides a 12-year product warranty and a 30-year performance warranty for both series. The company guarantees at least 99% of the initial power output after the first year and 87.4% after 30 years, with maximum annual degradation of 0.4%.

In August, Shinsung E&G opened a new 350 MW solar module production line at its Gimje factory in South Korea, bringing the facility’s total production capacity to 600 MW. The company said the line would manufacture n-type solar modules for projects in the Saemangeum development region, including an 80 MW ground-mounted installation, another 74 MW project and a 300 MW floating solar facility.