[RE-wrenches] Utility inverter rating

[Erika Weliczko]

Greetings all.

I recently received this back regarding an interconnection application
proposing a Sunny Island 6048 and a SB7000:

"we have to rate the system at the max output of the inverters, and since
that battery backup has an inverter that can export 11kW, (albeit for 3
seconds) I have to review the system for a total of 18kW."

 

This is a new one on me. I might argue that the SB7000 is upstream of the
SI6048 and really the SI6048 is the point of interconnection, so the SB7000
is irrelevant. And 3 seconds is not really continuous operation.

 

It seems that batteryless inverters show continuous output ratings, though I
know there are some that specify a larger than expected OCP for various
reasons, but that is not what the utility cares about.

Any insights here? 

 

Thanks,

Erika

 

REpower SOLUTIONS

www.repowersolutions.com

P: 216.268.2275

C: 216.402.4458

 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20121018/41bfef5f/attachment-0002.html>