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Energy delivered = (+P)import, energy received = (-P) export pretty much means net metering. The US is far to big a country to have any real form of smart meters that benefit the energy suppliers, In the UK smart meters run ZigBee communication so your meter speaks to your neighbours meter and...

Good good speed test is a nightmare don't know why it's officially supported Im upto 16gb every 12 months on influx, which I store but I run mine on a commercial server so data isn't that big an issue. Home assistant is literally the reason I got solar to begin with, I wanted a hardcore UPS...

At this point I haven't tested but I'm not all that worried about temperature delta, the temp displacement is what I'm focused on. The ground here is mainly rich clay on the surface so the hole depth is going to be more to do with sand content, even if I get a good delta that's not going to...

Is your appartment the top floor? what type of ceiling do you have? normally you will find a box steel frame supporting the roof this is welded to the rebar protruding from the pillars. If you do indeed live on the top floor and have an accessable void above you, any of the steel beams above...

If they are indeed the cells I posted then it's a very good deal for that price, cheaper than here and I'm neighbours with china If you have a smart charger that has a BMS included I would just wire them up as 12v with measurement leads between the cells and run a storage charge. edit: oh...

8800 ÷ 48 =184.4 so 193amp breaker if you can find one if not 200amp, wire calc with a 3% drop at 2meter runs says AWG4/0 so 107mm² which seems madness lemme check a decent source

Another thing though it might be a hard question as I'm more bias to the features of the solis but honestly which is the better AiO the Deye or the Solis?

Maintenance is non existent in any form as far as I can tell here, we recently looked at a second hand car where the air filter was the factory fitted one 8 years old, hence why I tend to prefer to learn how to maintain my own stuff. Hoping OP does his research, not sure what the Philippines is...

Problem you will have with contactors is most that are rated for DC above 100amps normally come with 24v coils (Schneider for example)so you would need some form of Stepdown if your controlling via your batteries this could likely be controlled via a SSR and Arduino/esp if you don't want the...

The CALB 200 second edition are still widely available here online so I'm wondering if they aren't being produced why so many? There's alot of available cells to choose from il be sure to do a ton of research and post here to get everyone input before buying.

Above all sounds correct as I had exactly the same situation. I built multiple systems a good few years back with the 10a epever variants for my irrigation systems using old solar light panels I had piles off, nothing seemed to work correctly at 2 panels in series (18v) untill I added a 3rd...

My experience isn't with regular batteries mainly it's from the larger 12v Milwaukee tool batteries are two parallel strings of 3s, they do self Balance after a fairly long time but they won't charge as the majority of the BMS isn't actually in the battery but the tool/charger so they way I...

I was being an evil Brit and quoting a jack judge song

Wether OP is a Materials Science Engineer or Prompt Engineer I'm not that bothered good questions are being asked and answered. If everyone could word prompts correctly no one would be asking questions. @battery_professional I noticed a discussion here on the forums about cell orientation some...

Multimeter set to AC volts, red lead to socket live terminal, black lead to bare metal on the beam. But first I would test the voltage at the socket, (black lead to socket neutral terminal) 220v should be the standard but standards and asian standards differ greatly take a note of the voltage at...

$171 shipping??? More likely it's coming from china with that price.

I'm unsure with this particular growwatt and solar assistant but from my own experience via home assistant, I upload an esp32 with the modbus data and any variables, that then translates the modbus to mqtt(not in my case it's transferred directly to my ha API though I can do it via mqtt) the...

Second hand panels are hit and miss bargain wise here. Either the sellers have no idea and think they can charge as new price or you get them really cheap, our neighbour/cousin saw mine go up then managed to get 10x 250w panes at $0.05 a watt but all he does is throw them on his roof pointing...

Feed the Chinese into Google lens?

Best thing in my mind is bed load sensors, when me and my wife goto sleep everything turns off it's the true pinnacle of smart home.

That will be some extremely complicated flow meter or level gauge most just output voltage, no can data as far as I'm aware.

That's what jumped in my head when the idea first came to me. That's a point I'm wondering about wouldn't the oil prevent oxidation making it maintenance free Sadly I'm not DIY'ing the inverter otherwise I could have thrown that in the bath also.

Thinking about it the grinder is going to cause a bit of heat when cutting so hacksaw/reciprocating saw would be the better option.

Ali price is vastly more so I think I'll go with the smaller coil I can source here for the test at least then if everything goes well I can order the larger lengths and diameter from ali.

No I didn't, just looked now I'll take a bash at it tomorrow if I have chance tyvm

You can probably buy cheap chinese battery heads for rigid(see below photo then likely you would have to go 48v system and use banks of 3 batteries in series that would be close to float voltage of a 48v Lifepo4 battery at 54v but that's where my knowledge ends.

I mainly use them for my projects because of the Bluetooth every project I add to the house allows me to map a little better so it's easier to track my car keys when I miss place them

So you can use esphome in that case just an esp with relay to switch two DC contactors one for each battery with one being on NC and the other on No

Markup, business costs and the fact it's old stock they have to get as close to pricing as it cost them when they bought it all those years ago.

Please read my statement when the GFCI doesn't trip with DC current (type A which is only a recent change to British regulations that specifies type B) or there is no GFCI,RCD,RCBO or ELB the earth is the primary protection hence why they are so focused on earth being below 5ohms. British regs...

Lol 5.5MWh is 6% of what Thailand hopes to produce over the period of 8 years from residential solar.

It is kinda only for liability and insurance purposes otherwise why notify them at all, the electricity board will likely not care and just presume it's all got certification. Though I'm surprised that your claiming part-p is such a big deal now, back 10 years ago every kitchen/bathroom fitter...

I don't think I'll be pushing the batteries but ambient temps are already pushing the limits and we haven't even hit summer yet here. Below is my garage temps so far this year this is a shaded thermometer 2ft below a tin roof.

No your likely getting reasonable quality gear in the west, here in Asia they sell really poor quality as it doesn't have to pass many standards. These meters are literally $2 and can probably kill doing a current test.

Maybe something like this it's designed for EV but would cover your ratings https://evshop.eu/en/relays/208-gigavac-gv200pa-contactor-12v-coil-without-economizer.html

Let robbob do you a detailed diagram maybe I'm completely off and thinking too rudimentary, will be interesting to see what he comes up with.

Would make sense why there's such large spools of cables inside the unit.

Ground rod? All I see is those wires, a hockey stick and a bowl of rat feces on the floor.

10ft doesnt really apply here you could go 20ft and still not get a great earth. The reason i said the buildings frame is normally ok is because it will have multiple lengths of rebar driven into the soil 4 per pillar at least 4 pillars so thats technically 16 ground rods at 1m depths...

These are the CALB cells widely available here Though the advertised cycles kinda worry me. I'd likely go for the 280ah which are almost a 50% increase to the price but advertise 9000 cycles

That's not a bad idea Tnx I'm still really undecided on placement yet but I'm ;okely just going to fab a ground mount for now and try them at various points on the farm till I come up with a permanent solution from my rough guesstimate I'll have two 4.5m² strings that could technically be used...

It would likely have to be a bug in the firmware rather than false readings from the CT, as I said before as far as I'm aware CT interference tends to be big sporadic spikes or that's what I've seen on the 20 or so I have fitted around my farm.

Others will be much better at pointing out any finer details as I'm still very much a novice but one thing jumps out at me and that's voc with the two panels in parallel the voltage will likely be around the 30v mark, looking at the mppt SSC it only said that voc needs to be below 150v but no...

Back to post 1 it's quite worrying to think how many DIY batteries in wooden boxes have been made with these Amazon fuses connected the same way as OP with steel washers between current carrying contacts, there's lots of YouTube videos on DIY batteries that wouldn't necessarily go into the finer...

Your probably a good person to ask Tim but are they ratcheting? Hypothetically of course when setting up my on-grid/hybrid I'm likely going to commission it then have them inspect post install if I did back feed would the meter run in reverse? Getting caught reversing the meter here is probably...

I'll translate I well versed in English. Hello wonderful forum members, Can you please explain to me what breaker and cable size I should use between a 304amp Seplos battery and a 8.8kw Sunsynk inverter?

Sorry I stand corrected lazada.ph is a minefield of junk best I could see was 560w jinko panels but a single is near $150, not posting a link as I don't know how to break it up from being affiliated therefore against rules.

I saw first hand how dangerous they are, well I heard the explosion and saw the aftermath it was running off a 18v panel charging a 12v 45ah Pb that was running a 12v fan here's what happened to the battery.

Yep makes more sense it's too late for me to try be inspector cluedo

Hey corporal canada just thought id let you know as im also in asia and many of the houses are constructed similarly in concrete, if the house has concrete beams on the corners you can take a ground from a screw driven into the steelwork supporting the roof above, these steel beams are normally...