Crossy

you can get pretty accurate by starting with a small (3mm or so) masonry bit, (they don't wander as readily as bigger ones) then gradually enlarging the hole to your desired size, but it still may not be accurate enough.

31 minutes ago, zlodnick said:

Neighbors stay on one number.  Is it a concern?

Are you saying that you checked a neighbour's place and they don't jump?

If so, you may have a bad connection somewhere. Any "fizzing" noises or "interesting" smells? check all your breakers for discolouring of the plastic.

Check the voltage at your incoming breaker, and at the meter.

Whilst you are there check that the connections are tight, use a well-insulated screwdriver, wear rubber gloves (new washing-up gloves will do) just to ensure you don't get a tingle.

Task-A = fit new batteries in your meter.

If you have an older analog type multimeter you can use that to see if the voltage really is hopping around (this type of meter still has its uses).

14 hours ago, OneMoreFarang said:

Then fill those gaps, i.e. with little pieces of wood, and then you have a straight piece of wood on a not so straight wall.

Yeah, that's what I meant by my last sentence "Pack behind it where your wall is less than straight."

I would fix it at two ends, then determine where your other screws will go preferably where the wood is actually touching the wall, no packing needed then.

1 hour ago, zlodnick said:

Would an 18k inverter do any better?  Just a thought.

Inverter units are much more tolerant of low supply voltage, but they behave as constant-power loads, lower voltage means they pull more amps => even lower voltage ... Exactly the same real issues as using an AVR.

I'd hang on until PEA come up with a solution unless you can get a suitable AVR (about 3kVA) to just run your larger A/C for a sensible price to bridge you over the hot period.

Do check your historical transactions.

I've noticed that Lazada refunds, whilst taking to the "next billing cycle", actually appear on the statement at the date the refund was processed (so if you were refunded on Feb 29th look there on your online transactions) so that could be well in the past.

12 minutes ago, degrub said:

Good design practice for hydrogen releases inside structures with roofs is to use a ridge vent design where the ridge of the roof is removed and a “hat” is placed over the opening with a few cm of gap to allow the hydrogen to naturally flow out of the structure. With open soffits under the roof edge, a thermosiphon can be established to further aid hydrogen escape. 
 

Confined hydrogen is a good way to suddenly disassemble a structure 😉

Indeed, although in the case of LiFePO4 packs if the hydrogen is being emitted there're rather more serious issues afoot.

Now, if we are using lead-acid then ...

4 hours ago, degrub said:

I was thinking about the annual flood events that @Crossy tracks rather than more esoteric causes 😉

At least the flood will put the fire out!

Seriously, Lithium-Iron-Phosphate (LiFePO₄) chemistry is much safer than the NMC (or Li-ion) chemistry used in your smartphone, scooter, hover-board, monowheel and a lot of EVs and has a much-reduced tendency to "thermal-runaway". Many suggest that they are at least as safe as lead-acid (which have a different set of safety issues).

LiFePO4 will burn if persuaded but most incidents involving them seem to be of an electrical rather than chemical nature. At least, that's how they start, a shorted LiFePO4 cell will out-gas and one of the products is hydrogen which is somewhat flammable.

Concentrate on good electrical design and implementation, adequately rated cables protected by suitable breakers and/or fuses.

It's far better to avoid starting a conflagration rather than to try to extinguish one.

Our friends at the National Fire Protection Agency (NFPA) have things to say about ESS installation and location. Chapter 15 is the relevant bit for domestic systems.

<Removed copyrighted document, plenty of places to download it>

EDIT You can view direct from the NFPA website for free (you have to create a free account) start here: -

https://link.nfpa.org/free-access/publications/855/2020

EDIT 2: - Actually, you can view the latest version too.

Ignoring (for now) the actual chemical energy that's contained in the various battery chemistries (some are rather more "energetic" than others).

It is worth remembering that a 10kWh battery pack (about 200Ah @ 48V) contains about as much energy as a litre of petrol/gasoline.

Treat your batteries as you would the gas can for your mower!

Once our packs are fully configured, we will have >60kWh of storage, about 1.5 US gallons of gas! That's staying well away from our home!!

If it decides to go "whoosh" we may lose the car-port and the car but the house should be well out of range.

That's not a breaker.

THIS is a breaker!

The 250A DC MCCB which I intend using as an overall battery isolator sitting next to one of the more regular MCBs we find in our homes!

Mike Pinder, a singer, songwriter and keyboard player who helped form the progressive-rock band the Moody Blues and was among the first and most prominent exponents of an early electronic instrument, the Mellotron, died April 24 at his home near Sacramento. He was 82.

His son Daniel Pinder confirmed the death but did not provide a specific cause. Mr. Pinder was the last surviving member of the original lineup of the Moody Blues.

https://www.washingtonpost.com/obituaries/2024/04/25/mike-pinder-moody-blues-dead-obituary/

I'd go for the wood strip on the wall, a nice piece of dead-straight hardwood would do the trick and look ok too.

Pack behind it where your wall is less than straight.

OK I stand corrected. 

The best option would be to remove all doubt and extend after he returns as @Liquorice suggests.

He would have to ensure the officer at the airport does stamp him for the few days. Last time I did something similar he noticed and asked if I wanted 2 days or a 30-day exemption, but you never know.

15 minutes ago, mateusz1945 said:

 they can run in parallel? that is a great news because i left  exactly half of roof space open. i feel like a genius now.

You can run at least 6 in parallel

21 minutes ago, mateusz1945 said:

I wanna be able to export to keep my bill close to zero.

You can only get export credit if you are on the PEA feed-in-tariff or you spin a disk-type meter backwards (naughty).

15 minutes ago, mateusz1945 said:

Has zero export feature. My question is a feature or is it forced by PEA so you cannot export?

The inverter is able to export quite happily, whether PEA are happy about it or not is a different animal.

PEA don't force the inverter to do anything, you can turn export on/off or configure just how much or how little it does from the inverter menus.

I'm just about to order several of these units coz we've outgrown our 5kW Sofar hybrid and the Deye allows you to run parallel on the UPS output.

.

1 hour ago, Misty said:

 

Hope the local UOB branch can help.  Phone calls (when I can get through) just result in being told that someone will call me back in 15 min.  So far no one has called, and I conclude they are overwhelmed.  No time to go to a branch today, but will do so tomorrow if this remains unresolved.

 

It's good you're getting notifications of transactions, so at least you can see if there's card misuse.  I'm not getting those types of messages, although one UOB person was able to to confirm my phone number.

 

Hopefully the risks are low, but if data was compromised this period would be ideal for fraudsters.

 

 

All sorted

The original issue was that my passport number had changed, I did try the old number but that didn't work either (probably because it had expired).

Anyway, the usual hassle (and multiple photocopies) of changing passport numbers ensued, very helpful young lady in the branch sorted that.

Then a different lady helped me set up the App. The process involves no less than 3 (three) one-time-passwords, your card number and PIN, setting up a username and password (which you will use once if you set up biometrics) and lots of "confirm" clicks. I probably would have lost it trying to get it going on my own.

The App looks pretty much like the Citi version and seems rather faster.

5 minutes ago, impulse said:

I did find some data condoms in Chinatown today, but they were made for kids, with shells that look like tiny critters and comic book characters.  So I passed.

When my nearly 40-year-old Thai stepson rides his motorcycle wearing a helmet with teddy-bear ears ...

I would not be at all surprised if rolling-blackouts (or just blackouts) were on the cards.

Get your gensets serviced and/or your backup batteries (even simple UPS) checked and charged.