This wasn’t an RSD rant (and thank gosh NEC2023 clarifies and reduces some 
silly RSD requirements), but a rant over the damn finick-iness of the BUI and 
multi-inverter setups from SE. 



I’ve developed a nervous tik that comes on with lighting and storms and hits a 
peak when phone rings from customer immediately after the storm…heck, even the 
surge from the grid utility coming back seemed to freak out the one I was at 
yesterday which was operating fine in backup mode.

Can’t say many didn’t say, “I told you so.”

Enjoy your weekends. Scot

 

From: RE-wrenches <[email protected]> On Behalf Of 
William Miller via RE-wrenches
Sent: Friday, May 24, 2024 3:13 PM
To: RE-wrenches <[email protected]>; [email protected]
Cc: William Miller <[email protected]>
Subject: Re: [RE-wrenches] I know you've all said, "I told you so..." 
SolarEdge...

 

Sorry but my previous post went out before I finished my thoughts.

 

I know MLPE electronics can be a pain. I hated the RSS requirements when first 
introduced. However solar energy sources pose unique safety concerns. There is 
no safety disconnect on the sun. IMHO, having a means to safely work on high 
voltage PV circuits during daylight hours is worth the added cost and 
inconvenience. 


With all due respect.  Rant off. 



William Miller
Miller Solar.com
805-438-5600
www.millersolar.com <http://www.millersolar.com> 

 

 

On Fri, May 24, 2024 at 12:25 PM Dave Angelini Offgrid Solar via RE-wrenches 
<[email protected] <mailto:[email protected]> > 
wrote:

Well to me the final, final straw is their stock price losing 2/3 its value in 
a year.

 

I tell all of my clients if you ever have to do roof solar, you should use a 
central inverter and not ever put electronics on a roof. Bad enough to put 
solar panels up there! 

 

 

 



 
Dave Angelini Offgrid Solar
"we go where powerlines don't"
 <http://members.sti.net/offgridsolar/>    <https://offgridsolar1.com/> 
https://offgridsolar1.com/ <http://members.sti.net/offgridsolar/>  
e-mail   <mailto:[email protected]> [email protected]
text 209 813 0060

 

On 2024-05-24 9:10 am, Scot Arey via RE-wrenches wrote:

SolarEdge…I keep saying they fixed their reliability issues, but the latest 
storms in Central Texas leave me again with frustration. Some systems worked, 
others did not. Worst was ones that were surge-sensitive as grid utility power 
was restored so a system in backup yesterday turns into a service call with the 
grid back, as a finicky BUI transfer switch didn’t go back to grid power.

Make the run to the affected customer and wait and wait and wait for tech 
support, only for them to finally take my call after I’ve packed everything up 
(how long must we wait for a call pickup?) and the first question is “send us 
pics of the installation.” Of course that is to grade the work and despite me 
saying we replaced a comms card in November, and don’t you have that picture 
still? I get the tier-1 blocking before I get to tier-2.

I’ve had a lot of final straws with SolarEdge, each time assuaged by a “we’re 
fixing reliability…we’ve improved tech support” but objectively, this company 
drives most of my reliability frustration. Intra-“box” comms are so finicky. 
I’ve told them they have Backup Interface Units that get stuck between grid and 
backup during the rapid on and off utility outages that come with many storms 
and they try to say “we have not seen that” but I tell them I gave five 
examples just from me!

Vent over…know many of you have left SolarEdge and I suppose its stock price a 
manifestation of that.



 

  <http://RCMAP1cb3343af70aacea2cf9a7aaf469155b> 

 

 

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