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I don't know what this particular one do but I found the original Chines mfgr when googling for a users manual of it. Mfgr specifies that it can be fitted with one or more different type of interfaces as 433MHz RF, optical. wifi, mobile broadband, modbus. rs-485 among others. Mine have what looks like an infrared diod in its round window.

No photos, company I bought the panels from did the install, I'm too old to enter the roof. Roof was once covered by leaf tiles (temple type tiles) so it has 1"x1" horizontal metal beams every 10 cm from top to bottom, the tiles were replaced by OSB board and shingle a few years ago. The guys mounting the panels understood the 10 cm distance between the beams and screwed solar panel mounting rails through OSB board into the beams. I've been up in the attic a couple of times to check for leaks and haven't seen any.

The battery is rated for > 6000 full discharge + charge cycles , I don't do full discharges so I estimate that I do the equivalent of ~200/year. With a pessimistic calculation they should last at least 10 years, optimistically 20 years. My system is not only intended for saving on the PEA bill, I live along a road with frequent power cuts due to high-voltage fuse blown. When worst it is a couple of cuts per day for a week after which we are down to normal which is once per week or two week and this has been ongoing for more than 20 years. Those cuts lasts for a couple of hours until the PEA fuse-swap-monkey has dragged his lazy legs out of bed. Then we have the cruise ships anchoring on the sea cable from the mainland and that will surely happen again now with a new cruise ship terminal being built and a doubling of arriving ships. So, in myself I trust, in PEA Samui I distrust. Self sufficiency in electricity and water (have own well) is a must here.

32 x 445W Longi panels installed by company 200.000 baht Do-it-myself: Deye inverter imported from China 96.000 baht 40 KWh ESS battery imported from China 280.000 baht Various install material 20.000 baht Total 600.000 baht, reduced PEA bills of 90.000++ baht/year so 6.5 years until ROI.

I've been wondering for some time when someone at PEA will react to our drastically reduced power consumption since end of May last year when I first started to use solar power. We have always had our meter read in the morning of the 20th during the 22 years we have lived here and the only exception to that has been them reading it one day earlier if the 20th was a public holiday. That changed in February when they came the 19th even though the 20th wasn't a holiday and then in March they came even earlier, the 18th. 🙂 so I suspected that something was in the doing. I have not exported much to the grid this year, only around 20 units/month but not close to the dates the meter reader has been here so I'm quite sure that he has not seen a reverse spinning meter. The bill for April was an empty one with all lines x:ed over, not even listing the 17 units we had used so I was not surprised yesterday when I found that they had replaced the meter.

Ordered April 14th from Qishou Shenzen as DDP and it arrived in Koh Samui today. I have an empty Seplos Mason 280 DIY chassis to put them in. The cells are EVE MB30 which are rated for 306Ah but in reality can deliver 330Ah and they are rated for 10000 recharge cycles. Flexible busbars and isolation sheets were included. Total price was $1168 + $289 for the freight or $90.5/cell at my doorstep, the Seplos chassis was around $500 earlier this year so $2000 for around 16KWh of ESS.

I tend to agree about that. 😀

No it is not and by saying that you also say that the 90 day report is a visa. The date they want is the date in your passport of the "Permission to stay until" stamp. STAY visa is the keyword. There is nothing from a 90-day report receipt that you need to fill in when you do a new one.

There is no visa expires date on the 90 day report receipt you get after doing an online report. ss

No it is not. A 90 day report is not a visa, the date is the expiry date of stay and it clearly says so.

You have obviously never done a TM47 90-day report online. You are asked for 2 dates, "Arrival Thailand Date" and "Stay visa expires" , the latter being the date your "permitted to stay until" stamp in your passport indicates.

They will loosen up again, sorry to be repetitive but you are using a flat lug that will have a very limited contact surface with the switch. It doesn't bottom out so the pressure on it will deform its side edges with time and that is when it get loose again. Don't ask me how I know this..

I know exactly what you're experiencing, I have two grand children living with us and they have each their own room.. Me: Not a degree below 27 on the remote or I'll cut down on your candy and your school money!

My way of doing it in the battery room under the house. 50sqmm feed, switch, 35sqmmx2 to the250A fuse and the busbars. Two battery stacks of each 4x5KWh (=40KWh) connected to the busbars.

That is flat lug and it should only be used in a switch that has a flat bottom, not a round bottom like your switch has. Its connection to the switch is only on the side edges when you use it as you do

Looks like you are using some kind of lug on the wires, maybe DZ47/C45 lugs like this: the switch however is intended for bare wire which you can see from its rounded bottom. I use DIN-rail enclosures for all my other switches but the battery DC switch I used is this one: it has proper M8 hex bolts and not weak Philips type screws..

Maybe you could do a one-time exception to your rule just for test purpose?

500 baht you or your Samui landlord must have done a TM30 report

It most likely is.

Some 1-year dTac cards does not have to expire, you can fill them up at a dTac shop for another year.

Elon should have built his mega-battery in Grünheide instead of building it in Australia.

That means that you can temporarily overload your meter up to 50++ Amp somewhere above that your fuse will trip but your meter could withstand up to 100A (before it heats up so much that it starts to spin slower ☺️ )

A 15/45A single phase meter can withstand 15A continuously and 45A for a short time, not 45A continuously! The same goes for a 30/100A 3-phase meter, it is 30A per phase continuously.

Interesting to see that I'm not the only one to have a consumption peak 31/3, our daily consumption during March was 52KWh ± 3KWh with 0.5KWh daily purchase from the grid (because current transformers in wrong place) and no feed-back to grid. 31/3 we had the record consumption of 68.4KWh and we had to buy 6KWh, I'll have to rectify that purchase today 😁

What could make a difference is telling them that you need the account in order to apply for a non-O visa.