I’ve had my Powerwall about 3 weeks now, and it’s recorded two “events,” one the first day, of 5 seconds (I know when that one was) and one last night of 5 minutes. Is there any more detail (like time) available? I know the APIs seem to be an issue now with the 1.20 software update...
It’s not a big deal, just curious...
I came upon this post while trying to answer the very same question. I too, would like more detail about the Backup History, like the time of the outage, not just duration. I found api references for the Energy Sites Historical Data on both getpostman and Teslaapi.io, they recommend using this
url 'https://owner-api.teslamotors.com/api/1/energy_sites/:site_id/history?kind=energy&period=week', but this only returns the cumulative energy for each day. I GUESSED and tried the undocumented
'kind=backup', and lo and behold, I got this:
{'events': [{'timestamp': '2021-06-01T00:59:35-04:00', 'duration': 305207}, {'timestamp': '2021-05-17T14:33:59-04:00', 'duration': 416379}, {'timestamp': '2021-05-15T19:47:15-04:00', 'duration': 621934}, {'timestamp': '2021-05-05T19:36:19-04:00', 'duration': 335000}, {'timestamp': '2021-04-10T17:41:07-04:00', 'duration': 29792767}, {'timestamp': '2021-03-26T09:33:29-04:00', 'duration': 321139}, {'timestamp': '2021-03-19T08:52:44-04:00', 'duration': 306256}, {'timestamp': '2021-03-17T18:59:09-04:00', 'duration': 329347}, {'timestamp': '2021-02-04T09:12:44-05:00', 'duration': 4862266}, {'timestamp': '2021-01-26T10:57:02-05:00', 'duration': 335096}, {'timestamp': '2021-01-15T18:11:17-05:00', 'duration': 305186}]}
(note: duration is in MILLISECONDS) and the data comports with what I see on my phone app, just better detail.
Hope this helps.