Wafer manufacturer Nexwafe has announced it has reached 24.4% efficiency on an M6 heterojunction cell, and that both TOPCon and heterojunction modules made using its wafers – which are produced in a deposition process – now match those using conventional Czochralski Process wafers. Nexwafe’s manufacturing process is unique in the silicon solar industry, and there are qualitative differences between its wafers and conventional ones – which is why this performance milestone is significant or indeed exists at all. Now that parity has been reached on performance, Nexwafe can leverage its quality advantages – but we will discuss those at the end of this article, because the real appeal from Nexwafe’s technology is its cost reduction, which applies to both the…