4 bus bar cells are the latest technology in the market and they have several benefits over 3 bus bar or 2 bus bar modules.
3 busbar vs 5 busbar solar cell.
Side by side comparison of solarworld s 3 busbar sunmodule solar panels left versus the 5 busbar one right.
Solarworld s five busbar 60 cell panels have approached the nameplate power of competitors 72 cell presumably three or four busbar panels.
Their purpose is to conduct electricity generated by solar cells and move it to the junction box.
Silicon solar cells are metalized with thin rectangular shape strips printed on the front and back sides of a solar photovoltaic cell.
Using 45 watts soldering iron with flattened tool tips 2.
As a solar installer you may have come across 4bb 3bb 2bb on solar panel data sheets.
Soldered in both ends first 4.
However as the technology evolved and the industry moved towards higher efficiencies the busbars in most solar cells were increased to 3 busbars.
However to achieve even higher efficiencies the latest trend is to have 4 busbars and sometimes even 5 busbars.
1 2x 6 5 x 6 5 inc fly wood.
4bb implies it is a module with 4 bus bars.
Soldering flux in syringe injector 3.
4 busbar solar cell 4bb stands for 4 pcs busbars on a single cell and 5 busbar solar cell 5bb stands for 5 pcs busbars on a single cell.
The older practice was to have solar cells with typically 2 busbars.
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.
These metallic contacts are called busbars and have a significant purpose.
The 12 pcs busbars is also called multiple busbars referred to as mbb.
Many large pv module manufacturers such as solarworld and trina solar increasingly focus their production on solar pv modules using passivated emitter rear contact perc solar cells with 5bb frontside contacts.
It is easy to distinguish in appearance.
They conduct the direct current generated by the solar photovoltaic cell.
The busbars are the metal lines you see going down the individual squares or cells of the solar panel.
Higher output per cell higher efficiency.
Multi busbar cells noticably 5 busbar 5bb cells are currently one of the major trends in solar cell and module design.
Frequently solar cell busbars are.
