[RE-wrenches] Module level MPPT
SOLARPRO at aol.com
SOLARPRO at aol.com
Mon Sep 13 09:03:22 PDT 2010
Bill:
You will need to install MPPT trackers from TIGO and SOLAR MAGIC on all of
your modules, and not just the string in question... as far as I have been
told. I have asked both outfits the same question - and was interested in
SunMizer for this very reason.
But SunMizer seems to be going through a change, or perhaps chrysalis.
One can only wonder.
Maybe you could use Enphase for just the modules in question, and use a
smaller string inverter for the balance.
Patrick Redgate
Ameco Solar
Solar California
888-595-9570
In a message dated 9/13/2010 7:48:29 A.M. Pacific Daylight Time,
frenergy at psln.com writes:
Gentlemen and Ladies,
I'm designing a 4KW res system which has limited roof space and
would like to use a certain number of panels to satisfy power requirements
and inverter voltage needs. However, this would necessitate placing
2-3-maybe 4 PVs (in one string, of two string total) in a location which
would recieve shade from the second story from about sunrise until, say
10:30 PDT.
I'm not interested in going individual inverters on all PVs, but
would appreciate feedback on the use of module level MPPT trackers such
as
Tigo or Solar Magic, or?? only installed on the shade affected PVs? Or
must they be installed on all PVs in that string....or both strings??
Thanks in advance,
Bill
Feather River Solar Electric
4291 Nelson St.
Taylorsville, CA 95983
530-284-7849/6544 fax
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