‘Silicon Module Super League (SMSL) leader JinkoSolar has achieved a record conversion efficiency of 24.2% for a large-area N-type TOPCon (Tunnel Oxide Passivated Contact) solar cell, verified by the Photovoltaic and Wind Power Systems Quality Test Center at the Chinese Academy of Sciences (CAS).
Back in 2013, Fraunhofer ISE had reported an N-type TOPCon solar cell with a 24% conversion efficiency.
To break the record, JinkoSolar used tunnel oxide passivating contact technology on a high quality N-type monocrystalline wafer with selective doping and advanced fine-line printing.
Fraunhofer ISE had previously noted that a key hurdle in reaching high efficiencies with n-Type wafer/cells was the patterning scheme of the rear contact as the rear side metal contacts are an efficiency limiting factor.
JinkoSolar said that its N-type ‘HOT’ technology was a key R&D milestone that opened up a new path towards developing high-efficiency commercial products that competed with HIT (Heterojunction with Intrinsic Thin-layer) and IBC (Interdigitated Back Contact) technologies.
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Understanding bifacial’s true potential: technology innovation and technical bankability of bifacial
The deployment of bifacial PV technology is growing rapidly. It has proven to be the most effective solution to reduce levelised energy costs (LCOE) and increase the Investment Rate of Return (IRR) of PV systems, offering substantially improved energy yield compared to the use of standard mono-facial modules. Even though the concept is not new, it has been a niche technology for many years with uncertainties in predicting performance and optimizing installations. Today, bifacial technology is becoming mainstream, with capacity available at the multi-gigawatt scale and with corresponding global deployment of project pipelines. Join this webinar, presented by Andrea Viaro, as he discusses the award-winning Swan bifacial module with transparent backsheet from DuPont, its features, benefits and differences vs. standard glass-glass modules. Jinko Solar’s new bifacial technology innovations will also be highlighted, specifically covering profitability in deployment at utility-scale PV power plants. Andrea will be joined by Dr.Lars Podlowski who will give a comprehensive introduction to all aspects of bifacial PV technology, with a special focus on benefits and risks industry buyers and investors should pay attention to.