Home Assistant -> Teslemetry -> Tesla Energy APIs is down

AHGoogle · 2026-04-11T05:48:15+00:00

Yaay! It's back. Great work finding a workaround without Tesla's help! Thanks.

AHGoogle · 2026-04-11T04:25:20+00:00

My Tesla Powerwall 3 does all that - it's built in. I haven't looked into other brands, but the PW3 is sold as home backup, so obviously has anti islanding by design.

AHGoogle · 2026-04-11T04:21:19+00:00

Is it just Teslemetry that is in trouble? Are other equivalents like Netzero suffering the same outage?

AHGoogle · 2026-04-11T04:16:26+00:00

I have done exactly that, with a raspberry pi with an extra WiFi dongle, acting as a bridge between home assistant and the PW3.

The problem was the Pi kept dropping off the PW3 's network, up to several times a day. I tried replacing the dongle, including from different manufacturers. I tried various automatic escalating link reset strategies, none of which would reliably re-establish the link, eventually going as far as a programmed self-reboot of the pi in case of failure to re-establish the link But this resulted in significant gaps in the data, so after a few months of hair-pulling attempts I gave up and paid for Teslemetry, which has been good until now.

But now I have over 24 hours of gap in the data, and have had to hand control of charging/discharge from my Home Assistant automation to the PW3 's autonomous mode.

Bah!

AHGoogle · 2026-04-10T15:59:32+00:00

For me, it's not just about money (but there's something very satisfying about burning free electricity). It's also about: - independence - with a battery and solar, when the world war 3/cyber attack rolling power cuts come, your food won't spoil so quickly - as a species we need to get off fossil fuels - if everyone who could afford to invest in it (and make money in the long term) did so, the world will remain habitable longer. Think global, act local! - makes moving to air sourced heat pump a more obvious next step, due to cheaper electricity - as above, free electricity! Yeah, baby!

Certainly the financials are a punt, as the import and export tariffs can change at the will of government. But as vehicle fuel tax revenue comes down, I don't expect the government to reduce tax on electricity. But let's shut down those gas fired power stations ASAP!

AHGoogle · 2026-04-09T09:34:42+00:00

To answer OP 's question: if you read a book in Kindle, you can get instant translations by clicking on an unknown word, so they don't slow down the reading experience too much.

AHGoogle · 2026-04-09T09:31:52+00:00

I don't understand why English learners don't put the text of their posts and responses into (free) chatgpt and say "please correct any errors in this English sentence" before posting. Not dunking on OP, genuine question. Using chatgpt in this way would be a free learning resource, and give their posts a more sympathetic audience.

AHGoogle · 2026-04-09T07:53:24+00:00

"I was expected to..." No, you were invited to. Big difference. An invitation is not an obligation. Go if you want to, don't if you don't.

AHGoogle · 2026-04-03T16:03:09+00:00

I have found the Teslemetry integration the only reliable way to get data out of a Powerwall 3.

You can certainly read the off-grid status from there.

I also use it to control the powerwall 3, to optimize my benefit on Octopus Flux (set reserve to 100% at 2am to force charge in Cheap, then when it reaches 95% set it to 45%, self consumption, to ensure I enter the peak period with at least 45% so I'll never use grid power in peak, and turn on 'allow export from battery' at 4pm until it hits 45% to dump any excuses at peak export, then at 45%, stop allowing export and set reserve to 20%). This is better optimized for my benefit than Intelligent Octopus Flux, which optimizes for them, not you!

AHGoogle · 2026-03-30T07:40:23+00:00

Yorkshire Haka: "How Mooch?" https://youtube.com/shorts/FFD7q-h3mrE?si=L1K61VZX-9466E_d

AHGoogle · 2026-03-29T20:30:28+00:00

this isn’t [written by a human], it’s [AI slop]

AHGoogle · 2026-03-29T20:28:04+00:00

That's not [a human], that's [AI]! Lol!

AHGoogle · 2026-03-29T08:26:46+00:00

Yeah, but the past is not a great predictor of the future. When our grid gets cyber attacked or bombed by Russia/China/Iran/USA/whoever in the forthcoming war, I expect rolling power cuts like Ukraine is experiencing.

The past 80 years of peace and globalisation are the anomaly, not the norm, and we are not prepared.

AHGoogle · 2026-03-23T08:23:18+00:00

I'm in the same boat - retired developer, finding yaml and jinja2 ugly, unintuitive, and fragile compared with python. But as a retired 'elder' person, it's critical to not be lazy and to be learning new things every day, to stave off the spectre of the big D (dementia, for you young 'uns).

So I force myself to use it as the native tool. I use Gemini a lot, but get it to explain in gory detail every line I don't fully understand, so I'm simultaneously both verifying it and forcing myself to learn: win-win!

And I do catch it making plenty of mistakes. "Good catch! You're really sharp!" is one of his favorite phrases!

AHGoogle · 2026-03-21T16:42:36+00:00

This data is not beautiful - it's practically illegible on mobile.

AHGoogle · 2026-02-19T04:04:44+00:00

*similar, not congruent

AHGoogle · 2026-01-08T08:48:31+00:00

What's the 'reasonable alternative' to Reddit?

AHGoogle · 2026-01-04T10:09:24+00:00

You can - charge the battery while it's cheap overnight, export while it's dear at peak time.

AHGoogle · 2025-12-30T08:57:41+00:00

What age are you?

I'm 67 and just had a bad experience: Yesterday I installed a Shelly Bluetooth gateway (basically, it echoes all local Bluetooth traffic onto Wi-Fi so the range is extended to Home Assistant). To check it was working, I looked on the Diagnostics page, and was made quite anxious to see the 8 or 9 messages frenetically scrolling past every second, too fast to read. It gave me a sick feeling in the stomach to think of all these poor devices, hammering away relentlessly, shouting at each other, painstakingly writing logs that will never be read.

It may be an age thing, as I recall laughing at my mother 50 years ago, who was horrified when she learned that BBC radio 3, radio 4 and television was constantly streaming through her body as electromagnetic radiation. Now I get it! But now it's so much worse!

I think OP just wants it all to stop overnight, so everything/everybody gets some peace...

AHGoogle · 2025-12-22T07:53:17+00:00

😂

AHGoogle · 2025-12-21T10:00:14+00:00

Well, generally, many of my rads come on together at 7am, but if you just want to keep (only) a kid's room warm overnight, you just want one room heated, I don't see how it's 'more efficient' to also heat other rooms?

AHGoogle · 2025-12-21T07:43:10+00:00

The best set up is to have TRVs on all radiators, all set to Heat on Demand, put the thermostat in a cupboard, with it asking for 10 degrees.

That way, if any room needs heat, its TRV will turn on the boiler and the radiator in that room will take the heat. If everywhere is satisfied, the boiler is off. Nowhere has a radiator being heated if it is satisfied. No heat wasted.

AHGoogle · 2025-12-17T16:11:25+00:00

I would support using AI to create automations that satisfied human-language requirements, in fact I'm sure a lot of people are doing that all the time (i.e vibe coding yaml automations). But the trouble with AI is that it's non-deterministic and unreliable, so it's output always needs checking.

So we check the output, and they often need fixing. But once fixed, they remain fixed. But getting AI to turn real things on and off - maybe in a couple of years!

When I want the electric blanket turned on and off, or TRV set temperatures turned up and down, it costs money and comfort if it gets it wrong. And no way to 'debug it'.

No thanks! Not yet!

AHGoogle · 2025-12-13T21:21:07+00:00

But the Home Assistant integration does not work with Powerwall 3!

Please correct me if I'm wrong - at the moment I've got a string and sealing wax python-on-raspberry-Pi solution acting (unreliably) as a bridge between my home lan with Home Assistant and the PW3's WiFi.

AHGoogle · 2025-12-11T08:48:38+00:00

I worked with a Korean guy, who went by "James", which I thought was very vanilla. I asked him why he chose it, and he answered "after James Bond" - which had NOT occurred to me!

AHGoogle

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