Sunpower SPR-2800 replacement

[Pabloloco]

My sister has a Sunpower SPR-2800 positive ground inverter that has stop working. after reading a few posts I understand she will have to find a used inverter with positive ground capability.
I found a FRONIUS IG PLUS A 3.0 1LT-1 INVERTER and wanted to know if this will work as a replacement.

[edustys]

Just wondering if you ever received a reply to your question. I currently have an SPR4000m positive ground inverter that is fried and am desperately looking for a replacement. How does a company warrantee panels for 25 years and inverters for 10 years and not continue to support customers after the inverters fail? Very interested in anything else you may have found since your initial post. Fingers crossed otherwise its tens of thousands of dollars down the drain.

[Pabloloco]

edustys - No replies yet. Have you found out any information?

[bcroe]

My Fronius IG Plus book shows a ground fault detection circuit connected
directly to the negative panel input bus. That apparently will directly limit
it to negative ground systems. This might well be the limiting factor on
other types as well. Bruce Roe

[oregon_phil]

There seems to be many iterations of the Fronius IG Plus. I found two references to positive grounding for different models of older Fronius inverters. It would be important to get the manual before purchasing anything to see what flavor of IG plus is being sold.

[Pabloloco]

The model I'm looking at is a FRONIUS IG PLUS A 3.0 1LT-1 INVERTER. The "A" in the model number indicates "Advanced". I will try to contact Fronius to see if it can be set up with a positive ground. Thanks for everyone's feedback.

[edustys]

edustys - No replies yet. Have you found out any information?

Haven’t had any news either. We did, however, perhaps find something on eBay. Seller stated he’d be out of town though so will have to wait until 2/20 before getting any further details.

[edustys]

edustys - No replies yet. Have you found out any information?

Eureka!! We found it!!! Based on a recommendation from KeyboardFarmer from the great state of NJ, I contacted YouLoveSolar, a subsidiary of Solar CowboyZ, who has Sunny Boy Positive ground inverters. In my case the SB-4000US is an exact match to the SunPower SPR-4000m. As the representative explained, in addition to the New Old stock, they also have refurbished stock as well. Their technician worked for SMA the, original manufacturer of the SunPower inverters, so there’s that to consider. Thank you so much KeyboardFarmer, you just saved my system to at least another 10 years.

[Pabloloco]

My sister purchased a Sunnyboy SB3000US from You Love Solar (thank you Dina at Solar CowboyZ) and I was finally able to get to Sacramento to install. It's hooked up and working great. Thanks for all the input.

[edustys]

My sister purchased a Sunnyboy SB3000US from You Love Solar (thank you Dina at Solar CowboyZ) and I was finally able to get to Sacramento to install. It's hooked up and working great. Thanks for all the input.

That’s great! Dina is really something isn’t she. Fabulous company to work with to boot. Another fried inverter disaster remedied.