[Elecraft] OT - Photovoltaic (PV) Systems

[Bernie Gardner]

I put pretty much this system on our house a couple of years ago: 4400 
watts from 20 220 Watt panels with Enphase micro-iinverters.  I tend to 
have local noise anyway, but after the system was functioning I tuned to 
an otherwise quiet band and pulled the switch on the photovoltaics.  I 
could here no difference in noise.  My shack is on the second floor with 
only a few feet or less of attic between me and the panels.  I've never 
observed any problems from rfi getting into the photovoltaic system.  
Note that I don't run more than ~100 Watts, so I can't speak to what 
might happen with a full legal limit amp.

The system has worked out very well.  We made about 85% of our total 
electric use the first year, though with the heat this summer I'm afraid 
that number will drop from air conditioner use...

Bernie
W1AZ

On 7/19/2012 8:35 AM, Monty Shultes wrote:
> We're considering a 4KW PV system to save energy costs.  If you have not read Bob Bruninga's August, 2012, QST article "Rethinking Electric Power…" it is recommended.
>
> Does anyone here have experience with solar panel/inverter systems (no batteries, selling power back to utility) regarding interference?  Either receive interference from the PV system, or RF getting into the PV system and causing issues.
>
> The most likely configuration for our system will be "micro inverters" attached to each of 16 60-cell solar panels.  This minimizes I^2R losses and is extensible.
>
> Thanks for all replies, on or offline.
>
> Monty K2DLJ
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