Conversion efficiency
Powerfoil with a conversion efficiency of 12% is equivalent to 18% efficient glass solar panels.
Powerfoil can be produced with two active layers (tandem junction) achieving a conversion efficiency of 12% at STC, which in real operating conditions matches conventional c-Si based glass panels, however at a fraction of the costs. A rigorous roadmap is aimed at the production of triple junction Powerfoil product that will have an efficiency of 26%. HyET believes performance is only partly determined by conversion efficiency. Equally important is the total system output which for a-Si PV cells is higher because it perform better in diffuse light conditions and with partially shading when compared to conventional glass panels.
Competitiveness
When compared to the most common PV technologies, Powerfoil technology outperforms on the main performance indicators delivering the lowest LCOE for most applications.
