On 6/7/2024 at 11:14 AM, Crossy said:

Patience is rewarded, Lazada have two 15% "6-6" discount vouchers (having two is unusual).

 

So, I bought two Deye 5kW inverters (two separate orders, 1 voucher used on each), one order got an extra 50Baht off for using my UOB card 🙂

 

12k will get quite a lot of beer

 

 

34k for Deye must be great value. Look like prices in Thailand on Inverters getting better..I saw the Growatt was at better price in Thailand now also.

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On 6/9/2024 at 1:47 PM, Crossy said:

Inverters have arrived.

 

All good.

 

It feels great what waiting for the right offer is rewarded.

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7 minutes ago, freeworld said:

extractor tool.

 

https://www.lazada.co.th/products/568-i3624341777.html?spm=a2o4m.searchlist.list.25.10304b2dEFNqma

yes i have order a manual tool. I do not see space for a drill there.

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28 minutes ago, OneMoreFarang said:

Do you want to add a valve again after you remove the old one?

In that case it might be better to open a little of the wall and replace the pipe to be sure it will be reliable.

Imagine you spend time with this only to find out that it won't seal correctly.

Yes, I will add a new valve. I have just ordered an extractor tool on Lazada that i will try use to remove.

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Tried some hours to find a way to remove last part of the broken valve in the bathroom wall. Any ideas? I have suggested to weld a steel pipe to it to remove but was told here its impossible to weld on.

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36 minutes ago, Crossy said:

 

Growatt do have a big following, pretty good bang-for-the-buck but support appears to be somewhat, er, "variable".

 

Yes Crossy have some point on this. Growatt is a midway solution.. First i was tempted to go cheaper but I very happy i paid a bit more and got growatt. I think prices now are mid 20k or so..

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46 minutes ago, tuk75 said:

Hi guys,

Need some expert help to my solar installation. What I have today is 9 x 380 W and a Sofar 3.2 inventer.

Panels are east-south direction, max production 17-19 KwH per day, ROI about 2 years.

I have a roof south-west direction with place of 5 panels 550 W or maybe 620 W.

I have in mind a Anern 10.2 or PowMr 10.2 inverter with 2 MPPTs , but I am concern if the MPPTs will work with different volts and amps without problems.

The alternative is 2 parallel inverters but it’s difficult to find 5 KwH hybrid inverters for a acceptable price.

The plan is to get batteries after a while, to be completely independent of PEA.

Thanks in advance

T.

I was looking into same type inverters and also looked into that size inverter but ended up with 2 x Growatt 5000 and very happy with the decision.

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I need  a way to fasten my pvc wire storage racks for the wires between inverters. breaking boxes etc. My wall is rock hard so i have give up drilling for the pvc racks. Any suggestions for gluing it? hotglue? superglue? silicone?

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Researching W1209 Temperature relay controller with buzzer as alarm. So the controller power a buzzer at the set temp.

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On 4/30/2024 at 8:57 AM, OneMoreFarang said:

One or multiple temperature sensors will show you if something starts to get wrong. 

Yes i have set JK BMS temp sensors on each breaker so it will stop charge/discharge if hot. I did see some limitation because of the parallel connection will still feed some power to the hot breaker. I will try find a stand alone sensor with alarm/warning if hot.

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9 minutes ago, KhunLA said:

(edited quoted post)

 

92%, (42.6 kWh) + shy of 20kWh of Solar ESS

NO worries 

Could plug into the car, and if need to go somewhere, use E-MC or Ebike

or Buddha forbid, pedal bike or walk to the

vendor 300m away, or 7-11, 2.4kms away 

Thats a nice extra backup storage.

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7 minutes ago, KhunLA said:

Going Dark .... 

 

Overcast clouds + pollution = W T F

And during peak production hours 

2 frigs

1 fan

EVs charged up, and why you charge, when you can 

How much battery capasity in your EV?

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Need a year with all seasons to get the full experience on the current setup..but as for now i kind of wish i had got 320A batteries instead of 280 and also that i had added a few more panels. The last part is still easy to change.

I was getting the best effect from the panels 6-7 months ago and lower effect when its the hottest season. 7kwh vs 6kwh now.

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29 minutes ago, Crossy said:

 

Indeed, it's a tad warm.

 

We are swallowing 27kWh from the storage overnight, total daily usage about 50kWh of which about 1kWh is from PEA

 

 

Im just able to get recharged ( 2 x 280A)from day to day now. Production around 40Kw/day. I really feel the difference in charge current when 2 aircon running most of the day. Some days Im not even fully charged up before sun down, but its like its just going around.

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22 minutes ago, Muhendis said:

I thought about fitting a smoke detector, but my feeling is that by the time smoke is detected it is too late to save anything electronical.

Circuit protection is the best anti-fire regime.

My battery balancers were connected direct to the batteries without any current limiting devices or fuses.

It would have been nice if the company which supplied them had included a word or two about safety but, as usual, it is left to the individual to take whatever precautions are necessary.

Batteries are chock full of big heavy power just itching to get out so any electronic devices connected to them need to be protected by a fuse.

If a component in said electronic device were to fail short circuit, it would be nice if the thing failed to catch fire.

 

Its good to have solution who can save the electronic but in my case I was mainly thinking about safety for my family since i have my inverters and batteries inside home.

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I was looking into this:

DAYTECH SM12 9v claim 1 year battery life

and

DAYTECH SM06TA 3V lithium battery 17335. Claim 10 year battery life

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Regarding danger of fire on solar/battery equipment: Any of you mounted smoke detectors to early detect any smoke?

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1 hour ago, Seeall said:

now its 38-1xx bt/month  ??  whats that?

By electric bill use to be from 38 bath to 1xx bath a month. So i use 0 to 5 units per month from grid.

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1 hour ago, degrub said:

Overheated terminations and wire is the first step in the recipe for a wiring fire. 
i would fix those first, including any others that have  not warned you with discoloration and melting - asap.

Remember, heat rises.

Hello

This was taken care of asap as soon I discovered it.. Now also with temp monitor on each breaker.

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Looks great. Congrats with your new panels and batteries.

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16 minutes ago, lom said:

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..

Thanks for your input...I was wondering exact the same..if this just will continue. As for now the plan to get this temporary improved and working/running. Then next step I would make a plan for improved setup who also should be ready for adding more batteries in future. When I calculated and built my setup I was quite sure I would not need to expand it in the future but after experience the hot season with less optimal sun direction and school vacation with kid home and run his AC, I'm more open for the idea to expand capacity.

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18 minutes ago, Crossy said:

Ideally you should do something like this: - 

 

 

Each inverter has a means of isolation from the batteries, each battery can be isolated from the DC bus.

 

How you do the paralleling is up to you of course, but as you've found multiple cables in one MCB hole is unwise.

 

A nice, meaty, copper bus-bar is the ideal solution.

 

 

I hesitate to post this, but I've seen this done in the past, slip some heat shrink over it, if you don't actually shrink it, you can see if the joint has been getting warm (the heat shrink will, er, shrink).

 

Thanks Crossy

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Update: Temp coming down again.. after tightening the 2 screws. Learning something everyday..i will keep my eyes on this, I even consider placing 1 of 2 temp monitors from each BMS on each battery breaker.

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Checked my battery breakers and found that the breaker i cleaned up yesterday was normal temp but the other one was very hot and so also the wire from breaker to battery. I was able to tighten the screws some and hope that will fix it.

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Nice progress. Waiting to see more on your battery building.. Quite a upgrade you are on.

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