[SCCC] Experience with RFI from solar panel installations?

Jeff Kincaid, W6JK w6jk at arrl.net
Fri Oct 11 20:50:48 EDT 2013


Hi Jim,


We now have 10kW of solar here at the shop (two 5kW inverters and lots of panels).  I was hoping to be wringing it out over CQP weekend, but never made it into the shack.  I'll hopefully know more after CW SS.  Meanwhile, I'm watching for other responses.  :)

Jeff W6JK


________________________________
 From: Jim Price <jnprice at pacbell.net>
To: sddxcnews at yahoogroups.com; sccc at contesting.com 
Cc: 'Dorothy Gesick' <drgesick at yahoo.com> 
Sent: Friday, October 11, 2013 4:29 PM
Subject: [SCCC] Experience with RFI from solar panel installations?
 

Gang - we are getting close to buying a solar power system for our home.
The panels, as luck would have it, would be mounted on the roof *directly*
above my ham shack.



The basic question is:  do the inverters generate a lot of RFI - or more to
the point, RFI that I would care about for HF contesting / DXing?



Sub-question:  in terms of RFI, is there any difference between getting
"micro-inverters" (one per panel) vs. a single large inverter?



And:  the company we are homing in on would send the monitoring signals from
the inverters over our home's power line to a device that is in turn
connected to our internet.  Is that signal something to be concerned about,
e.g. are they using something like the dreaded BPL?  The rep was here today
and we looked at some tech. info, but this issue wasn't addressed.



The rep also called a local ham who has their
 system.  He said the only
noise he's heard from the inverters has been in the AM broadcast band - but
presumably that would be an issue on 160?  Otherwise he's heard nothing on
the ham bands.  In his case, the inverters are >100 feet from his shack.



Any info would be most appreciated, ASAP, pse.  Tnx / 73 - Jim, K6ZH



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