Comment by aredox

A quick look around gives me a current figure of ~1 USD/W in Australia (dunno if that evolved a lot in a short time with the current inflation and currency rates).

Money quote:

"The cost for [production] Seq[ence]. B is likely to be lower than 1 USD W−1, and Seq. C could be lower than 0.5 USD W−1. These represent a significant reduction to the cost estimate from previous works of around 1.5 USD W−147. This results from a similar or lower cost in $ m−2, and a higher recorded efficiency. However, the technology is still not able to compete with mass-produced silicon solar cells, for which module spot prices have been lower than 0.30 USD W−148. Despite this, opportunities may exist in niche markets that value the lightweight and flexible nature of these modules, as discussed in our previous work47. The next step for the technology would be exploring high-value PV markets at the predicted manufacturing costs while addressing the remaining high-cost components to sustainably advance the technology towards commercialisation. Supplementary Fig. 12, with about 5 USD m−2 module cost (excluding encapsulation), shows the potential for the further cost reduction by eliminating the remaining high-cost components."