Pressure Treated Ground Mounts [RE-wrenches]

[Jeff Irish]

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Dear fellow Wrenches,

Any advice out there regarding constructing pressure treated ground mount
structures for PV systems for the northern half of the country?  What column
size (4x4?), what spacing?  What size cross bracing?  Nails, lags screws or
bolts to hold it all together?  Mount the modules to the wood directly, or
use steel Unistrut, or extruded aluminum rails like Solarmounts?  Any
galvanic corrosion issues with steel?  Any advice about what works and
doesn't work would be appreciated.

Jeff Irish
Hudson Valley Clean Energy, Inc.
New York State

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