The vast number of announcements related to P-type mono PERC (Passivated Emitter Rear Cell) production in the last 18 months have primarily related to integrated cell and module producers shifting in-house production to the high-efficiency cells, as conventional multicrystalline Al-BSF (Aluminium-Back Surface Field) solar cells reach efficiency limitations.
Mono c-Si cell production is forecast to account for 49% of all c-Si cell production in 2018, and will become the dominant technology used in the PV industry by 2019, according to new research contained in the latest release of the PV Manufacturing & Technology Quarterly report, from the in-house research unit at PV-Tech’s parent company Solar Media Ltd.
SNEC 11th (2017) International Photovoltaic Power Generation Conference & Exhibition (SNEC 2017) in Shanghai, China maybe the largest annual exhibition in the solar industry but its sheer size and number of attendee’s can often mask emerging trends that are better highlighted at other events such as Solar Power International (SPI) in the US.
Dedicated monocrystalline integrated PV module manufacturer SolarWorld believes 2017 is a transitional year for the company after announcing a switch to monocrystalline production at the expense of multicrystalline and a full-migration to PERC (Passivated Emitter Rear Cell) technology as ASP declines in the second-half of 2016 forced a major manufacturing rethink.
In defiance of a significant trend by a growing number of leading PV manufacturers to either completely replace P-type multi c-Si cell technology with P-type mono c-Si with PERC (Passivated Emitter Rear Contact) technology, or hedge their bets and do PERC on both wafer substrates, Silicon Module Super League member Canadian Solar is placing a potentially risky bet on pushing ahead with the migration to P-type multi c-Si PERC cell technology using diamond wire saw (DWS) and ‘Black Silicon’ texturing under its ‘ONYX’ cell branding.