[RE-wrenches] SolaEdge Outback AC Coupling

Bill Hoffer sunengser at gmail.com
Wed Jul 1 13:04:06 PDT 2015


Kirpal

True there is no current control, but more like a rough Pulse width
modulated control through motorized breaker that does maintain the proper
voltage level for a multistage charging at Bulk Absorb and Float settings.

Bill

On Wed, Jul 1, 2015 at 5:59 AM, Kirpal Khalsa <solarworks at gmail.com> wrote:

> Hey Bill...my understanding of the Outback AC coupled solution is that it
> does not offer multi stage charging from the grid tied inverter as it does
> not have any way to regulate the amount of power coming in  from that
> inverter...based on the state of charge of the batteries and at pre set
> voltage set points it can operate the remote breaker but it does not have
> the ability to taper the amount of in coming power from the grid tied
> inverter..   This is why the frequency shift AC coupling such as found with
> SMA and others is a nice solution as the amount of incoming power from the
> grid tied inverters is regulated allowing for healthy multi stage
> charging.
> Another thing to consider if using the Outback Ac coupled solution is that
> your DC coupling options becomes limited in the same load center....
> Cheers
> Kirpal
> On Jun 30, 2015 9:01 AM, "Bill Hoffer" <sunengser at gmail.com> wrote:
>
>> Kirpal
>>
>> Actually the Radian system does adjust the battery voltage point that it
>> disconnects the grid inverter based on the stage of the charge timers using
>> the 3 stage inverter charger set points.  The FNDC will also over ride the
>> timers if all fully charged parameters are met.  It has the advantage of
>> being able to safely use a back up generator in the system and will
>> physically disconnect from grid and the AC coupled inverter before
>> connecting the generator.  So there are some advantages over a SMA AC
>> coupled system too!
>>
>> Even though there is no official application notes on AC coupling a
>> Radian and Solaredge, I have seen it done with good results.  The nice
>> thing about an AC coupled Radian is it should work with any grid tie
>> inverter system out there.
>>
>> Bill
>>
>> On Tue, Jun 30, 2015 at 6:45 AM, Kirpal Khalsa <solarworks at gmail.com>
>> wrote:
>>
>>> Tom....I haven't AC coupled Solaredge and Outback, but I have AC Coupled
>>> Outback with various other inverter manufacturers and their Radian AC
>>> Coupled Load center will work with any AC source....It doesn't directly
>>> communicate with any other inverter but its remote operated circuit
>>> breakers allow it to disconnect AC Power from any other inverter when
>>> batteries reach a preset voltage....It is not as elegant as a sunny
>>> island/sunnyboy system because it doesn't provide multistage charging buy
>>> it is easy to implement and install.....You should be able to find all the
>>> information on the Outback Radian site.  You would need the GSLC-AC-120/240
>>> load center and it comes pre wired with the remote operated circuit breaker
>>> which makes it a breeze to install....
>>>
>>>
>>> Sunny Regards,
>>> Kirpal Khalsa
>>> NABCEP Certified PV Installation Professional
>>> Oregon Solarworks LLC
>>> www.oregonsolarworks.com
>>> 541-218-0201 m
>>> 541-299-0402 o
>>>
>>> On Tue, Jun 30, 2015 at 3:40 AM, Tom Lane <tom at ecs-solar.com> wrote:
>>>
>>>> Has anyone AC Coupled an Outback System with SolarEdge ? I would like
>>>> to see a wiring diagram and know what components from Outback you used with
>>>> SolarEdge . I have been told variously that SolarEdge does not approve AC
>>>> Coupling and that they have approve it , depending on who I get on the
>>>> phone . SolarEdge and Outback have no official diagrams or components list
>>>> that I can find . I would like some help here as we are in Hurricane season
>>>> in Gator Land !
>>>>
>>>> Sent from my iPad
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>>
>> --
>> William Hoffer
>> 161 SE Fourth Ave
>> P.O. Box 1823
>> White Salmon, WA 98672-1823
>> sunengser at gmail.com <bhoffer at sunergyengineeringservices.com>
>>
>>
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-- 
William Hoffer
161 SE Fourth Ave
P.O. Box 1823
White Salmon, WA 98672-1823
sunengser at gmail.com <bhoffer at sunergyengineeringservices.com>
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