Depending on the original work, I'd look at sealed batteries and leave
it alone. I've done a bunch of rewires, and you're really wasting the
customer's money to rewire 80 watt modules. ( module J boxes are so
1990s....) Meanwhile those 80 watt modules have decent resell value for
small 12 v systems, as does the Trace inverter.
I found that Outbacks take about 480 w-hr/ day so that's a fair bit of
the array just to offset that.
Small sealed battery bank, and let him play with a few backup circuits
in off grid mode might be OK. or offer him a new GT system with a nice
trade in allowance for the old gear.
I did a rewire recently like this, and we reused the generator 3 way
circuit selector. That lets them pick which circuits are on or off the
grid. I'm sure others here will have some good ideas I haven't thought
of too.
R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760
On 6/4/2013 3:53 PM, Steven Lawrence wrote:
Dana,
Maybe wire 3 in series to a single Enphase? It'll depend on what the
voltages are.
Date: Tue, 4 Jun 2013 14:01:42 -0600
From: "Dana" <d...@solarwork.com <mailto:d...@solarwork.com>>
To: "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org
<mailto:re-wrenches@lists.re-wrenches.org>>
Subject: [RE-wrenches] Old Modules for GIT system?
Message-ID: <05f401ce615e$55773960$0065ac20$@com>
Content-Type: text/plain; charset="us-ascii"
I have a client eat has a 24 - Solarex SX 80 PV module system
that was off
grid, Trace inverter, APT Power panel and an very aged L-16
battery bank.
The utility came in and he wants to go grid tie. It is or was only
960 watt
originally. I realize that an array rewire is in order and it may
only be a
1 KW system but he is interested in getting the equipment upgraded.
Has anyone done a grid tie with such a small array and with
modules this
old?
Any thoughts on installing sealed batteries and leaving it alone?
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