Solar module cell-count [RE-wrenches]

[Joel Davidson]

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Wrenches,

A lot of wrenches only install PV systems with batteries, but the vast 
majority of PV megawatts installed in the U.S. are non-battery grid-tie 
systems. 36- and 72-cell solar modules for battery charging make sense, but 
is there a better cell-count for systems with 300 to 600 VDC input 
inverters? Some installers prefer the Sanyo 96-cell module or the 50-cell 
Mitsubishi module or the Kyocera 54-cell module or the Sharp 60-cell module 
and some just buy whatever module is available. Is there a technical 
advantage to one module cell-count over another or is the growing number of 
module cell-counts indicative of a disconnect between module and system 
designers?

Joel Davidson


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