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To start with i wouldn't think it's interference or a bad ct meter as that normally gives large spikes not constant prolonged readings. Looking at your graph and looking at Temprature graphs for San Jose CA they seem to correlate, maybe a bad thermostat on the oven maybe a chip but for sure I...

Earth leakage breakers are more common here for mains power as they don't require an earth, you find alot of shops sell rubber extension sockets with them fitted. Most of the GFCI stuff just comes from china and isn't really designed for the Asian market it's more pointed towards the western...

I'm looking at £600/$760 per 280ah 16s battery but that doesn't include 7% import tax and the shipping cost, but it doesn't seem bad for a supported battery, I've saved the data but I won't bother talking to them until I've done more research and come up with a full plan for everything as my...

Woah woah woah money bags hold your horses, seeed studio?? I'm in Asia the majority of the time I'm just paying $2 for esp32 dev boards with a wroom chip.

Placement is kinda another issue we're planning on a new building(no walls for now just a roof, technically not our land but it's family so np) to put the panels on, which is about 500ft from the house. I was thinking of just going max voltage with smaller wattage panels and running from said...

This happens fairly regularly in Thailand, drunks or drivers suffering from lack of sleep regularly crash into poorly made power poles and snap them clean in half. One brand (Safe-T-Cut) dominates the market for residential RCBO main breakers with a fairly decent SPD integrated. It's saved the...

Even weather isn't that volatile here, hot, really hot or wet

Sunpower spr-(inverter size in watts)m according to image search looks to be just allen keys heres a link to the installation manual https://manualzz.com/doc/o/uu4y9/pv-inverter-sunpower-spr-5000m---spr-6000m---spr-mounting-the-inverter

Don't know the exact model but from what I've been reading alot today the deye/lvtopsun does have a generator autostart feature though I'm kinda becoming more drawn to the solis inverters lots of good reviews and they seem to be cheaper here in SE ASIA

Added the panel to what? If you have panels in a string the string will only add up from the power of your weakest panel ie 300-200-40 will only be 40-40-40 try the panels one by one then get rid of anything that would drag the string down( not 100% on this it's just my simple understanding).

Yep lithium cells are generally always stored at 40-50%,when buying anything with a lithium cell (phones, toys, laptops, solar batteries) you should notice they are delivered at around 50%charge this is generally considered to be the stable point of lithium chemistry and the least stressful soc.

The regs this post is quoting kinda laughable to me as an retired British electrician we simply had to drive as many rods as was necessary to get a good ohms reading So the exception is dangerous I've had to fit 5 rods on my home here to get an acceptable reading of 5ohms and I likely need more...

Winston produce 1000ah cells though I've only seen 500amp bms's, though I'm sure 1000amp are available. Price and fit for purpose normally are the factors here No not for lithium, you need to order the cells to the voltage then have a single BMS that covers that voltage/amperage. NB you can...

Ignore the SSC it's irrelevant for this thread these are sprinkler systems extremely cheap self sufficient sprinkler systems

Are the batteries balanced? How are the banks connected in parallel to the inverter?

Even considering that it's illegal there I think that guy is smoking too much devils lettuce even if the panels are that price who's buying them? Like I said type in "solar cell" into lazada, longi/era cells should be around the 5000 mark for 400w if your ok with other brands nakita/ja/Trina are...

Is white neutral and black live in California?

So don't pay for the 20 year extended warranty on my Solis inverter your saying?

Sorry the address might have been relevant information in my first reply, Its 0x05 the inverter is 2wire so RTU I didn't write the code I'm using so I'm unsure if it uses ASCII but if I remember correctly from debugging I think I saw 8 digit binary stings but I'm not 100% on that.

Hope no one is waiting on parcels to ship from Vietnam, pretty much every factory has shut there since the news of the US tariffs.

I have ir blasters for all our mini splits but they are pretty useless on their own, I'm in the process of fitting clamp meters to all the house circuits including individual hvac circuits so I can check power usage and determine state I'll post something in the interesting projects thread once...

I doubt very much that it's metal more likely it's gypsum board that's being used to hide metal or poorly finished concrete and I doubt the home owner would want you to go cutting big holes from it. Sorry no idea what else to suggest, sadly Asian ignorance of safety is widespread the likelihood...

The shelly pm series is a clamp meter and I believe relay so you can monitor and control the load.

Oh it is.....

Is it that bad for the US? most things are at least double the price. Panel specifications are irrelevant here in asia theres no point in buying anything but the newest technology(likely they just look at raw materials cost rather than specs) a 600w bifacial works out at about $0.13 per watt...

Thanks that's a simple explanation I'll remember

With large SQL databases? Just type "usb hard drive corrupted on pi" into Google you will find out that your case is rare and usb powered hard drives crapping out is the norm.

Not by the looks of it I'm afraid I can't see any battery test function on either of these pictures so doing a simple DC voltage measurement means nothing a battery tester tests voltage under load (has a resistor to induce a load across terminals) a simple multimeter cannot do this.

Good luck to the EU and US the rest of the world will continue to use Chinese PV goods just they won't have to run factories in other countries though not sure how tariffs will affect the Chinese companies making panels in Mexico.

No I'm out of country atm but hopefully heading back today but working out the lambda write isn't high on my priorities for now sorry. It's working out the hex code and how to implement it on initial boot up in my case as it seems this would likely be the most reliable way to get results.

Mines always in sub I think it's worth experimenting anyway even if the data has already been proven.

So i set up my small array to handle essentials, I only went with two 380w panels mainly for the voltage as this was a greater PV power production than I actually needed. Now there's talk in the house of a larger system to power everything but grid tie is more trouble than it's worth here so...

As I go deeper down the rabbit hole and now looking at the future and my next project I starting to be torn between FLA and Lifepo4, I was thinking FLA and Purley battery backup. Silly thing is here in Asia it's actually far cheaper to go down the Lifepo4 route but the hurdle being temps...

Sorry I thought it was 7% so I shouldn't be worried at all and it's actually charging at a reasonable rate?

API grabs are never that good or secure, personally I'd go with a hacked modbus like Deye.

Not that expensive whatever the option of cooling is tbh. I'm looking at $83 a kWh for Lifepo4 or $125 a kwh for FLA still haven't worked out my total usage (currently at around 20kwh for a whole day but it's not that hot) and how much I need to oversize the battery(any suggestions or just go...

He shops on Lazada it's full of sinopy, CATL, CALB cells and Daly bms's. 12v 100ah would be about $120 then a 40amp 100voc epever is about $65

What's the battery SOC/voltage currently? Do you have any loads on the system? Not trying to discount you may indeed have a problem but this might be normal behaviour for the mppt depending on these factors. If your battery is at full charge the epever might just be in float and only topping...

This is about the same price and offers more sockets. The screwdrivers are great as they are interchangable with the torque screwdriver and the blades are reasonably priced when you wear them out. Also the insulation doesn't protrude so they fit into tight terminals.

DTLC crimps are likely your best bet

Sorry didn't see that but my point still stands op hasn't come back to explain his choices or ask any further questions. I've not agreed with tim before but rather than keep arguing on a public forum with a person I don't know, I've chosen to not get into some heated debate in a thread with...

Yikes that's 12 years of no electricity bills for a payback All the aluminium case batteries have pretty newly applied shrink wrap so no idea of the mechanical damage although they would be more thermally conductive for my intended use, but is it really worth the risk? I priced up 64 sinopoly...

Shading is an issue as I'm not that familiar with optimizers and haven't even seen them sold here it's the main reason I've looked at the center of the paddy fields as it's the most barren spot of the land. Alot of my irrigation solar panels got taken over by trees, just everything grows too...

I'd consider these thin clients or sff (small form factor)really, but exactly what I would suggest to run Home Assistant. Micro pc's should actually be micro as in not much bigger than a pi but this is all semantics and better left for another day😉 one thing I would point out is if you intend...

I was thinking less about brazing more about bath to dissipate the heat more evenly but yes this is the general idea I've looked at thanks for showing. 304 stainless here still seems to rust so it might be a trip to old blighty or take a holiday and come visit you to get a decent roll of...

Hi all new member here just a quick question, am I misunderstanding the efficiency numbers quoted by Powmr? So a little background, I have a home assistant system fitted to the house automating power draw to make full use of any power produced as the battery isn't really used for storage just...

Spoke to the company this morning and got a realistic price of $1200/£1000 per unit which is still very good for a 14.3kwh premade but not the stupid bargain I thought it was, they will get back to me with shipping costs later so I can consider that with my price. Thailand only really has 1 or...

Not that high 115f in the open air shade last year some rooms were 130f+ with little ventilation in the summer plus the heat from charging/discharging it's liable to go boom in ambient or at least cause some issues. ?? I'm talking cooling down to 95f nothing that would cause viscosity issues...

Big dogs are great we don't even close our doors let alone lock them. Maybe OP needs some, so he can feed his distributor to them. Any sign of package 5 and 6

Yes and crazy to think that peak efficiency of a HF inverter is at only about 30% but it only drops by around 1.4% for every 10% over 30%. But with a 16kw at 80% load inverter that's a big chunk of heat