[RE-wrenches] Generator choice for Sunny Island

[Chris Mason]

The outback system comes programmed to allow greater frequency variation on
the generator input.

On Sat, Jun 17, 2017 at 10:16 AM, Drake <
drake.chamberlin at redwoodalliance.org> wrote:

> Also, very significantly, the SMA Sunny Boy / Sunny Island combos will
> taper charge when set up correctly.
>
> Drake
>
> At 09:53 AM 6/17/2017, you wrote:
>
> 
> August
>
>     Have used both SMA and OutBack inverters for this application. One
> challenge with the smaller generators is getting a true 60 hertz, they
> fluctuate. The Sunny Boy can be programmed to operate at a lower hertz
> range if SMA will share the "secret code ". Recently did a Outback system
> and the customer had a Propane fired Briggs and Stratton gen set, two wire
> start, works great. I understand why you want to use the matching SMA's.
>
> Have fun
> peter
> ----- Original Message -----
> From: August Goers <august at luminalt.com>
> To: RE-wrenches <re-wrenches at lists.re-wrenches.org>
> Sent: Thursday, June 15, 2017 12:02 PM
> Subject: [RE-wrenches] Generator choice for Sunny Island
>
> Hi Wrenches, especially those of you who work on off-grid projects,
>
>
>
> We have an upcoming off-grid project where we will be powering a storage
> container with electronics in it. The loads are mostly 120 volt but there
> is a 240 volt heat pump that might occasionally run. We’re AC coupling
> the Sunny Island with a Sunny Boy PV inverter. So, we’ll be installing a
> Outback PSX-240 autoformer to bump the Sunny Island’s output from 120 to
> 240 volt.
>
>
>
> We need to select a generator for backup. We need a two-wire electric
> start (in order to be controlled by the Sunny Island) and preferably a
> generator that is okay just running 120 volt loads since the Sunny Islands
> input is only 120 volt. Something in the 3 kVA -7 kVA range should be fine.
>
>
>
> Does anyone have experience or ideas about what kind of two-wire start
> generator we might select?
>
>
>
> Thanks,
>
>
>
> August
>
> Luminalt
>
>
>
>
>
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-- 
Chris Mason
NABCEP Certified Solar PV Installer™
Solar Design Engineer
Generac Generators Industrial technician

www.cometsolar.com <http://www.cometenergysystems.com>
264.235.5670
869.662.5670
Skype: netconcepts
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