UPS's not working on battery power

[Fruitcake]

Are you in backup only or self powered mode?

Are you in backup only or self powered mode?

I've lost power in both modes! No detectable failover. Ever.

I should say, I haven't lost power since I bought a Ting electrical monitoring system. I will report what Ting sees if/when I have an outage.

 

[Fruitcake]

Its not speculation, it happens, under various circumstances. Its actually more surprising that you havent experienced it at all.

How come power changeover was not seamless during power outage blip?

Well, this is interesting. Am sitting at my computer and the screen glitches. I get a text from my Ting line monitoring device that power has gone out, and then was restored "quickly". Looks like a transformer blew in the area, but we had a quick restore. Others are not without power. But...

teslamotorsclub.com

It could be that I'm the exception and I'm lucky. I wish I knew the "secret sauce" of my installation so that I could share it. (The only data point I can think of is that it's a 100% Tesla-installed system.)

 

[jrweiss98020]

FWIW, the Powerwalls will go back to 60 Hz temporarily, allowing PV power to supplement the PW, if the load demand is more than the PW can supply. I just confirmed that yesterday.

 

[jlv1]

@jlv1 , did your solar ever come back on, and if so, do you know around percentage your powerwalls were?

The electric company fixed outage before the Powerwall ever dropped the frequency enough to re-allow solar production - but it was close. Our production only resumed when the grid came back up (about 12:40). From the SolarEdge portal, I see the alert for "Grid frequency irregularity" go off at about that time.

(12:40 is the time stamp of the email from National Grid telling me power was restored)

From my hubitat logs, we were down to 86% SOC on the Powerall at the end of the outage.

But I did look at the logs of my Zigbee plugs and the they were reporting the frequency raising over the duration of the outage.

Solar production (over half the panels covered in 8" of snow)

 

[jlv1]

FWIW, I sent a "contact us" message from the Energy Support site on Saturday about the 65Hz, since I couldn't find a phone number for them at the time. No response yet. I'm about to the number at Powerwall Customer Support.

 

[jjrandorin]

FWIW, I sent a "contact us" message from the Energy Support site on Saturday about the 65Hz, since I couldn't find a phone number for them at the time. No response yet. I'm about to the number at Powerwall Customer Support.

You definitely want to call.. that contact us page will eventually work, but eventually will likely be measured in weeks.