LONGi has released a new bifacial solar module, the Hi-MO X6 bifacial variant, with a module efficiency of 22.8%, nominally down from the 23.3% its initial Hybrid Passivated Back-Contact (HPBC) module, the Hi-MO 6 released in November 2022, boasts – but with bifaciality allowing the company to claim a “1%” advantage over the mainstream cutting edge TOPCon products of its rivals. The series is geared towards the rooftop segment, selling around 900 MW a month to the commercial segment and with the company’s HPBC production capacity set to reach 33 GW this year. While these cutting-edge product releases are worth looking at in their own right on occasion, this article will also take the opportunity to examine bifacial and double-glass…