[RE-wrenches] High Power Split phase inverter/chargers

Fri Feb 21 16:53:09 EST 2020

Wes – Indeed, max Sunny Island 240VAC cluster is 4 units, so 23kW max BATTERY power.

Limit of roughly 27kW of PV (4x 120V x 56A relay limit = 26,880W) with that cluster if grid-tied with backfeed, so around 50kW max daytime load offset per cluster.  That may help if peak loads are always daytime?

Are you trying to take these systems off-grid, or just reduce peak load?

Best regards –
Mike

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From: RE-wrenches <re-wrenches-bounces at lists.re-wrenches.org> On Behalf Of wes kennedy
Sent: Friday, February 21, 2020 2:38 PM
To: RE-wrenches <re-wrenches at lists.re-wrenches.org>; Jeff Clearwater <jeffc at villagepowerdesign.com>
Subject: Re: [RE-wrenches] High Power Split phase inverter/chargers

Hi Jeff,

I think the biggest split phase sunny island system is 4 units, so that's 24KW.

What do you do for larger systems? Segment the loads? Not always very practical.

This latest opportunity is for an agricultural building that peaks at 75KW.

-Wes Kennedy 303-653-3073

On Friday, February 21, 2020, 12:47:39 PM MST, Jeff Clearwater <jeffc at villagepowerdesign.com<mailto:jeffc at villagepowerdesign.com>> wrote:

All of my SMA Sunny Island Sunny Boy AC coupled systems greater than 12 KW have worked flawlessly and delivered reliable power and good monitoring for years.  Less excited about my Schneider and Outback systems due to callbacks and hassles.  a bit more expensive but worth it IMHO.

Hope that helps!

Jeff

wes kennedy wrote on 2/21/20 9:41 AM:

Hi friends,

I keep running across opportunities with 50KW-300KW peak load requirements, on split phase services. Big homes, agriculture etc.

Outback, Schneider, SMA can all gang/stack into the 30-50KW range, but north of there, I am not finding many (any?) options?

Just found Aims Power 50 KW split phase unit with claims of higher power offerings by special order. Even the 50KW unit is $20K, so quite spendy. Any experience with these guys?
50kw - 50,000 WATT DC TO AC PURE SINE POWER INVERTER CHARGER 384 Vdc TO 220/230/240 Vac<https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.aimscorp.net%2F50kw-50-000-watt-dc-to-ac-pure-sine-power-inverter-charger-384-vdc.html&data=02%7C01%7Cmichael.mahon%40sma-america.com%7C9b17a515fc3c4935965f08d7b7168f75%7Ca059b96c28294d1188374cc1ff84735d%7C0%7C1%7C637179179837002896&sdata=2%2BQrNJCOqR6CbgWIW30VGBJFECsuEa9eMVs%2BLfCL8sM%3D&reserved=0>

50kw - 50,000 WATT DC TO AC PURE SINE POWER INVERTER CHARGER 384 Vdc TO ...

50kw - 50,000 WATT DC TO AC PURE SINE POWER INVERTER CHARGER 384 Vdc Split Phase 220/230/240

Thanks for any input!

-Wes Kennedy 303-653-3073
on this list since the 90's

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