[RE-wrenches] Generator choice for Sunny Island

[Drake]

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: <mailto:august at luminalt.com>August Goers
>To: <mailto:re-wrenches at lists.re-wrenches.org>RE-wrenches
>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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