SunPower E20 with P300 SolarEdge Power Optimizer? | on ElectriciansForums

Discuss SunPower E20 with P300 SolarEdge Power Optimizer? in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

T

topo77

Hi,

I have SunPower E20 panels on my roof.
http://www.evoenergy.co.uk/downloads/Sunpower-E20-327W.pdf

Rated voltage Vmpp at 54.7 V @ 5.98 A.

I noticed that the SolarEdge Power Optimizers on the panels are P300's which are rated to 48 Vmax.

I would have expected P350's or P500's.

Is it correct to use P300's with he E20? I'm concerned that the panels can generate a higher voltage than the optimisers are rated for.

regards,

topo
 
The SolarEdge Site Designer shows that the P300 is insufficient. A P405 should have been used.

Did the installer make a mistake by fitting the P300 power optimiser? Should I be worried?

regards,

topo

[ElectriciansForums.net] SunPower E20 with P300 SolarEdge Power Optimizer?


[ElectriciansForums.net] SunPower E20 with P300 SolarEdge Power Optimizer?
 
That's a more serious issue than the inverter size, particularly as it'd breach the warranty, but also as it's presumably going to be drawing power from the panels at a less efficient voltage point than it should be.

That is a remove and replace under warranty situation in my opinion.
 
Interesting that this would happen. Sunpower are supposed to offer the "best" panel. They choose only "approved installers" - presumably the "best" (or those prepared to pay a premium to access the "best" panel).

An approved Sunpower installer would surely spec Sunpower panels on most jobs. They must have used the Sunpower/Solar Edge combination before - selling the "best" panel with the "best" inverter solution at a premium price.

I wonder how many times they've done this and how well the systems are performing.
 
Doesn't sound good....certainly not a good choice of optimiser for those panels, P500 would have been ideal for a 96cell module. I would give the benefit of the doubt to the installer though, they may have believed they were installing the correct units, perhaps didn't even do the design themselves. It may even have been a supply error. Whatever the root cause, the P300 optimisers should be removed asap, have you contacted your installer?
 

Reply to SunPower E20 with P300 SolarEdge Power Optimizer? in the Solar PV Forum | Solar Panels Forum area at ElectriciansForums.net

News and Offers from Sponsors

  • Article
Join us at electronica 2024 in Munich! Since 1964, electronica has been the premier event for technology enthusiasts and industry professionals...
    • Like
Replies
0
Views
257
  • Sticky
  • Article
Good to know thanks, one can never have enough places to source parts from!
Replies
4
Views
739
  • Article
OFFICIAL SPONSORS These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then...
Replies
0
Views
721

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

YOUR Unread Posts

This website was designed, optimised and is hosted by untold.media Operating under the name Untold Media since 2001.
Back
Top