Comment by riskable

The benefit of PeSC is that it can get into efficiencies higher than 20% (higher than traditional industrial cells which typically top out around 18-19%) but the problem with them to date has been the cost of manufacturing. This article is all about solving the "cost of manufacturing" problem.

If we can get the cost of manufacturing PeSC cells down to the same levels of traditional crystalline silicon PV cells then the old style will become obsolete. It's a simple evolution of photovoltaic technology with PeSC cells being the next generation. Not so different from any tech where it's expensive when first introduced but as mass adoption and manufacturing improvements take place the cost comes down.