Re: Grounding for solar panels / solar arch

Mark Erdos

Hi Mike,


We too have an aluminum arch. It is not bonded since it is not in constant contact with saltwater.


IMO – the MPPT should not be connected to anything other than the solar panels and the batteries. This is consistent with the “floating ground” design of Amel.



With best regards,





Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Vista Mar, Panama


From: [] On Behalf Of SV Trilogy
Sent: Sunday, January 26, 2020 5:33 PM
Subject: [AmelYachtOwners] Grounding for solar panels / solar arch


Hi Everyone,

I've done some searching but haven't found a definitive answer. I'm curious for those of you with solar panels mounted on an aft arch (mine is aluminum)... do you have any grounding in place? My panels and arch have been in place for roughly two years and I haven't noticed any problems. No other equipment on the arch at this point. Does grounding just protect in the event of a panel failure/short/leak?

The MPPT controller is grounded to the generator. Is this OK?

Can anyone recommend some tests I could perform with the voltmeter to make sure everything is OK?

SV Trilogy - SM23
Opua, NZ

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