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@DamonHD I'm not convinced about the solar diverter - I don't use mine.

The theory goes like this: if you export the electricity and use gas to heat the water then you make more money. Or at least you do if you live somewhere with as wide a divergence between electricity and gas prices as the UK. (Which is bad in itself, but that's another story.)

But that's not the whole story. Because you might care about being green. Hey, if you've bought a solar PV system with a diverter you probably do! In which case the sums look like this to me:

If you *don't* export your 4kWh of electricity, then most of the time, in most parts of the world, at the margin, the grid is going to be burning carbon. And it'll burn at least 6.5kWh worth of carbon to make up for the electricity you didn't export. Whereas you'd only have burned 4.5kWh of gas to heat your water. So you burn less carbon by using gas to heat your water and exporting your spare electricity.

Yeah, OK, so if you're using something like #HomeAssistant you can have your system know when grid is burning zero carbon and turn your diverter on ... if you've got a diverter that can be remotely controlled like this (mine can't be).

An dem #HomeAssistant-Dashboard für meine #PV-Anlage gab es noch das eine oder andere zu optimieren.

Mittels #Modbus/TCP im separaten kabelgebundenen VLAN auch #Cloudfrei. Ja, es mag bessere Protokolle für sowas geben, aber ich halte das Risiko hier für überschaubar,

Habe vorsichtshalber noch einen externen Temperatursensor am Batteriespeicher angebracht, und ich werde beim Überschreiten von Temperaturgrenzen informiert.

#servicetoot Am 31. März ist #worldbackupday #world #backup #day #weltdatensicherungstag
Und läuft deutlich entspannter wenn man bereits jetzt mit den Vorbereitungen beginnt 😉
Meine Checkliste muss ich dringend erweitern.
Das Wichtigste.
#1
#homeassistant Image in den #cloudspeicher
#2
#cloudspeicher #pcloud auf lokale #ssd für den #schrank #offline #airgapped
#3
#Smartphone meiner Mutter von #iCloud auf #pcloud umstellen. Kontingent 100GB 9,99€ für mich. #spass
Ich hoffe die Erinnerung hilft euch.

It looks like spring is starting to make itself felt. Hopefully the lines will cross next week at which point #solar generation will pay for houses electricity use. I think the next step is finding a decent #homeassistant integrable bi-directional car charger so I can buffer between sundown and cheap rate and save myself about 8kwh a day at the full rate. We are already getting free hot water unless everyone wants to have baths on the same day.

I'm automating stuff at the family farm using #homeassistant ; lights, smoke alarms, stove fire preventers, heaters.

It's inspiring to see so many iot devices support #ZigBee but also infuriating that 50% of the ones I've encountered has something fucky with their zigbee implementation. It's also somewhat concerning that the mains-connected zb router devices I've found will drop off immediately when the power goes out. The thought of not getting alerts about a fire in the barn if the power's out, concerns me.

I've got my eye on #matter , but I can't find compatible smoke alarms in Norway (so I can be confident they comply with local regulations, and return them if they're bad), and only limited reviews of ones available from abroad.

I see there's matteralpha.com/category/smoke and community.home-assistant.io/t/ but idk.

Can anyone recommend a mains-powered zigbee router device with a built-in battery, that'll keep it routing for at least 1 hour if it loses power?

Alternatively, a small (max 20*10*10cm) #ups that'll power a zb router or other tiny device for 1 hour? #NUT #networkUpsTools compatibility is a big plus

www.matteralpha.comSmoke CO Alarm All Matter Smoke CO Alarm Smart Home Devices | Matter AlphaProducts listed in the Smoke CO Alarm Matter category
Continued thread

That’s the ESP32 and the button blinking the garden lights as a test via #HomeAssistant. A bit of a waste of a 240 MHz processor for a button and a buzzer 😅 but the cpu is needed to connect to WiFi and run its own little web server (it’s a 4$ board).

So my much-hated Ring 2 doorbell just plain died and I thank it for it as it forces me to finally change it.

In emergency I built a small button + buzzer simple doorbell with an ESP32 running #ESPHome. At least this will now * reliably* rings into my #HomeAssistant setup (makes the whole house blink ). Will install today.

Experimenting with charging the house batteries to 80% instead of 100% overnight now that solar is doing better during the day. It means we need less from the batteries during the day and can top them up more reliably too, and although we charge on cheap rate, free is cheaper than that :)

Seems to be going ok so far today!