
JA Solar modules are changing 4 busbars (4BB) to 5 busbars (5BB) technology
Silicon Module Super League member, JA Solar are in the process of moving their entire PV module portfolio to the most recent 5 busbar technology.
What are busbars
Busbars are metalised thin strips printed on the front and back of the solar PV cell. Their purpose is to conduct electricity generated by solar cells and move it to the junction box and out towards the PV inverter.
Why does the number of busbars matter?
The higher number of busbars the shorter the distance between them, which in effect means lower internal resistance losses. The reduced distance between busbars also means the negative effect of any potential micro cracks in the cell is minimised. Part of the cell affected by micro cracks cannot conduct electricity to the busbar therefore does not contribute to total module energy production. This means the shorter the distance between them, the smaller part of the module might potentially become unusable.
Benefits for system owners
Modules containing Multi busbar cells have increased long term reliability, increased all weather energy conversion efficiency and increased annual yield. This means in real life conditions 5BB modules should perform better than the same output 3BB or 4BB modules.
New JA Solar 5BB range
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- JA Solar 5BB modules reduce cell series resistance and stress between cell interconnectors improving module reliability conversion efficiency
- Mono cell technology with passivated backside – PERC (Passivated Emitter and Rear Cell) – for increased efficiency and yield
- High power output and module efficiency up to 18.65%
- PID resistance tested in accordance to IEC62804
- Excellent Low Light Performance
Click here to view all JA Solar modules >>
VIEW OUR SOLAR PANEL RANGE HERE >>
JA Solar Holdings Co., Ltd. Is a leading global manufacturer of high-performance solar products. Our products are deployed in residential and commercial projects as well as in terrestrial photovoltaic power stations.
JA Solar was founded in May 2005 and has been listed on NASDAQ since 2007. Since 2010 JA Solar has become a leading global manufacturer of solar cells. Besides its extensive experience in the global solar industry, JA Solar is taking advantage of its strength in PV-research and development in order to continue optimizing unique technologies in panel construction and cell production. For the benefit of our customers and their projects, JA Solar places great emphasis on the efficient interconnection of the single solar cells in the module as this guarantees outstanding performance and therefore also a high performance class for all modules. Many years of experience in the industry, being aware of research and development as key to innovation, global customer service, continuity and stability – all these features make JA Solar a competent and reliable partner for you and your projects. Join our ZERO Home Bills Community. BEST Products from the BEST Brands at the BEST Retail Prices for ZERO Home Bills on ZEROhomebills.com by Solaranna.
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