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<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">Howie-</span></font></div>
<div><font size="2"><span style="font-size:11pt" class="ContentPasted0"> it sounds like the XW+ is trying to curtail the Solar Edge by shifting frequency, and the loads don't like it.
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<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">When off-grid and batteries are charged there is no place for all that AC coupled solar power to go.
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<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">This is an issue windmill folks have too. The solution can be as simple as a dump load such<font size="2"><span style="font-size:11pt" class="ContentPasted0 ContentPasted1"> as a water
heater</span></font> to absorb the excess energy.</span></font></div>
<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">Tell the customer to turn the hot tub up high, or something like that. Heat up a bathtub in a greenhouse and plant bananas.
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<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">DonBarch</span></font></div>
<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">Energy Solar<br>
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<div><font size="2"><span style="font-size:11pt" class="ContentPasted0">From: Howie Michaelson <Howie.Michaelson@gmail.com><br class="ContentPasted0">
To: Dave Angelini <offgridsolar@sti.net>, RE-wrenches<br class="ContentPasted0">
<re-wrenches@lists.re-wrenches.org><br class="ContentPasted0">
Subject: Re: [RE-wrenches] Inverter output fluctuations<br class="ContentPasted0">
Message-ID:<br class="ContentPasted0">
<CAHMeMs=oOj_P0_a_sjyvw7_-+8kC9yVFSnm9PkWvgK-xnjx9MQ@mail.gmail.com><br class="ContentPasted0">
Content-Type: text/plain; charset="utf-8"<br class="ContentPasted0">
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Hi,<br class="ContentPasted0">
I was finally able to get to the site with the light pulsating issue. It<br class="ContentPasted0">
turns out it is that it directly corresponds to the AC coupled SolarEdge<br class="ContentPasted0">
HDwave 6kW inverter. Moreover, the pulsating gets stronger with higher<br class="ContentPasted0">
output of the SolarEdge inverter (as more sun pouches more current through<br class="ContentPasted0">
the inverter). And the hum of the XW+ very noticeably fluctuates in direct<br class="ContentPasted0">
proportion to light fluxuations. It affects all the lights in the house,<br class="ContentPasted0">
regardless of manufacturer, wattage or age. I did not have an oscilloscope,<br class="ContentPasted0">
but looking at the Hz, it does sag very slightly to 59.9 when the SolarEdge<br class="ContentPasted0">
is producing, down from a rock solid 60 Hz when the SE is not producing.<br class="ContentPasted0">
The output voltage does not change at all. The fluctuations in both the<br class="ContentPasted0">
lights and the inverter hum immediately stops when the SolarEdge production<br class="ContentPasted0">
is shut off. So it is clearly some interaction between the 2 inverters<br class="ContentPasted0">
causing this issue.<br class="ContentPasted0">
<br class="ContentPasted0">
Has anyone dealt with this issue before? Does anyone have any suggestions<br class="ContentPasted0">
for dealing with this, short of replacing the SolarEdge with a Schneider<br class="ContentPasted0">
high voltage Charge Controller?<br class="ContentPasted0">
Thanks,<br class="ContentPasted0">
Howie<br class="ContentPasted0">
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