Enphase is looking a little shaky for the
application at this point. Does anyone know of
an efficient inverter that would work out well to
AC couple with a pair of Outbacks on an 1800 Watt
array. The 90% efficiency range is what I've been
seeing. The new high frequency SMA inverters
look good, but last I heard were still tied up at UL.
Drake
At 03:54 PM 10/29/2010, you wrote:
When I asked Enphase about AC coupling with
their product a year ago the answer was a flat
NO, so at least it appears they're moving in the right direction...
Andrew Truitt
NABCEP Certified PV Installer™ (ID# 032407-66)
Truitt Renewable Energy Consulting
(202) 486-7507
<http://www.linkedin.com/pub/andrew-truitt/8/622/713>http://www.linkedin.com/pub/andrew-truitt/8/622/713
"Don't get me wrong: I love nuclear energy! It's
just that I prefer fusion to fission. And it
just so happens that there's an enormous fusion
reactor safely banked a few million miles from
us. It delivers more than we could ever use in
just about 8 minutes. And it's wireless!"
~William McDonough
On Fri, Oct 29, 2010 at 1:43 PM, Mark Frye
<<mailto:[email protected]>[email protected]> wrote:
Indeed an interesting game.
However, I am considering Enphase for a large
res retrofit which will recieve CSI funding. I
am obligated to provide my customer equipment
that will be warrantied by the manufacture for
10 years. I have to have certainty NOW that the
warranty will be honored in the application. I
can not base the fulfillment of my contractual
obligations on the passing whim of the support
technician of the day. My project involves
placing the Enphase below the ATS on a gen back
up system, an application which Ehphase will not warrant in writing.
So the question is, can I do the project at all?
All you folks who are putting Enphase on the
load side of grid-tied, battery based inverters
need to ask yourself the same question. It
appears that Nick already has his answer.
Mark Frye
Berkeley Solar Electric Systems
303 Redbud Way
Nevada City, CA 95959
(530) 401-8024
<http://www.berkeleysolar.com/>www.berkeleysolar.com
----------
From:
<mailto:[email protected]>[email protected]
[mailto:[email protected]] On Behalf Of Nick Soleil
Sent: Friday, October 29, 2010 12:33 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Enphase warranties
I bet if you don't push the issue, they
will cover the warranty. If the inverter is
truly failed, I am sure that you won't have an
issue. But since they are so reliable, that
probably won't happen anyway. However, if you
were to install them in an ''off-grid"
application, you can't expect them to guarantee
the performance, which is what a 'written'
guarantee implies. I bet SMA won't provide a
written guarantee that they will perform when
coupled to an FX inverter, either.
Nick Soleil
Project Manager
Advanced Alternative Energy Solutions, LLC
PO Box 657
Petaluma, CA 94953
Cell: 707-321-2937
Office: 707-789-9537
Fax: 707-769-9037
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