[RFI] Tesla's Response to Solar Panel RFI

[Gary Johnson]

TJ Simpson at Solar Edge tells me the new optimizers use spread spectrum modulation to reduce the 200 kHz interference that I am experiencing. In January, he is coming to install those next door. The wiring has already been rerouted and ferrites installed on a previous service call, but that didn’t reduce the 200 kHz carrier amplitudes here. So we’ll see what the new optimizers do. Thankfully the system is otherwise very quiet. I did a careful walk-around with my DFing gear and indeed the main inverter is very quiet. Only the carriers from their optimizer telemetry cause me any problems.

I must commend SolarEdge on their ongoing interest in solving my RFI issues. They are not super fast, but they work is getting done and I have a knowledgeable human being to work with.  No lawyers required.

Gary Johnson NA6O  
gwj at wb9jps.com

> On Dec 22, 2019, at 3:21 PM, rfi-request at contesting.com wrote:
> 
> Actually, yes, they are changing their designs.  These field retrofits are expensive.  The Lab's W1VLF was on the list to get his own home system upgraded and they replaced the inverter, the optimizers, added ferrites and did twisted pairs  to the panels, not a big loop.