Last week LONGi, launched its new solar module product, Hi-MO 6, which uses Hybrid Passivated Back Contact (HPBC) technology, and is geared towards the distributed solar market segment. It’s only now with this product announcement, using HPBC, that LONGi’s post-PERC technology route takes shape. Already by now the rest of the industry had largely announced plans to move onto TOPCon and heterojunction, with around 210 GW and 150 GW of manufacturing expansion efforts announced respectively. So those are the two main next steps beyond Mono PERC, whose efficiency has been ratcheted up to levels very close to its theoretical limit of 24.5%. LONGi is the largest solar manufacturer, with $12.5 billion revenue in 2021, and 50%+ revenue growth so far…