Goldi Solar unveils 665 Wp back-contact PV panel with 24.6% efficiency at REI 2025

Goldi Solar has introduced its new HELOC PLUS G12R Series IBC (interdigitated back-contact) modules, offering power outputs ranging from 635 Wp to 665 Wp and efficiencies between 23.5% and 24.6%.

The modules are built with 132 half-cut n-type IBC cells (210 mm x 182.2 mm) and feature a silver anodized aluminum alloy frame. They are equipped with 2 mm anti-reflective semi-tempered front glass and 2 mm heat-strengthened back glass, delivering 10–30% additional power generation.

The manufacturer said these modules provide higher output even under low-light environments like on cloudy or foggy days. Pmax temperature coefficient is -0.26%/°C, enabling better performance in high-temperature environments.

Each module measures 2,382 mm x 1,134 mm x 30 mm and weighs 32.7 kg.