Do panels lay on ground need earth grounding?

[kaizday]

i have 4 panels basically laying on grass in my (residential) backyard, with some woods and bricks to help tilting, do i need to ground them? i don't think Will ever mentions with his on the ground set ups, am i wrong?
thanks

 

[Hedges]

If connected in series, the voltage is probably 90V to 180V. If one had a leakage path to frame, that could be a hazard.
If parallel, voltage is much lower (although Voc of a "24V" panel isn't something you should touch while wet.)
We normally wire the frames together and back to equipment chassis and a ground rod somewhere as part of our permanent installations. The RV guys with some portable panels don't.

 

[newbostonconst]

The sad answer is yes.... The ground has to have the surface area with good contact thus using a ground rod that tries to hit ground water...

 

[newbostonconst]

In a portable setup no, but hardwired to house I would say yes...imho

 

[kaizday]

In a portable setup no, but hardwired to house I would say yes...imho

thanks, that makes sense.