[RE-wrenches] Sunny Island 5048 & Enphase

[Walt Ratterman]

Jeff:

 

The Sunny Island has one AC IN position.

 

If you use both Grid and Gen, this is OK, but you need to install a manual
transfer switch to select between the two, and you need to install a limit
switch contact in the transfer switch which can send a "close" signal to the
Sunny Island to let it know whether it is working on the Grid parameters or
on the Generator parameters.  If the parameters are the same, I guess it
doesn't matter.

 

Thanks,

 

Walt 

 

Walt Ratterman

SunEnergy Power International

www.sunepi.org

 

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jeff Yago
Sent: Monday, May 18, 2009 6:15 AM
To: RE-wrenches
Subject: Re: [RE-wrenches] Sunny Island 5048 & Enphase

 

I am sizing an on-grid with battery backup system that requires using a
ground-mounted array that will be some distance from the house.  I was
favoring a Sunny Island with a 4 kW SunnyBoy with AC coupled to allow using
a higher voltage from the array and the 4 kW Sunny Island  shown in their
product catalog which is perfect for this project, but all I can find is the
Sunny Island 5048.

 

Is the smaller inverter not yet available?    I will also have a backup
generator with transfer switch feeding this system, so are there any issues
with the Sunny Island operating from both a generator and the grid depending
on which is available?

 

Thanks,

 

Jeff Yago


 

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