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 Home solar 4 months in.

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adamw
post Jul 13 2024, 10:48 PM

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QUOTE(angelgemini @ Jul 13 2024, 10:28 PM)
how to check huawei inverter log?
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Not familiar with huawei but all inverters should have log file, try asked your installer.
adamw
post Jul 18 2024, 02:24 PM

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QUOTE(TheLegend27 @ Jul 18 2024, 07:25 AM)
then is it possible that we install solar panel off grid? perhaps we have a “switch” at tng that entering to our house after the better. when we turn off that’s switch we go fully off grid. so doing this should be not require tnb approval right?

then next is perhaps install a battery size 1 tesla car. then it should be sufficient to run at night time every night. that case we fully use solar without paying tnb.

possible done in this way?
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Yes, can throw TNB meter into the trashcan brows.gif
But by right Selco still need apply & need a competent person to installed & signed it off but currently this is a grey area.

adamw
post Jul 22 2024, 11:26 AM

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QUOTE(skywardsword @ Jul 22 2024, 10:38 AM)
I bought Anora insurance + home content insurance.

https://www.nst.com.my/business/2022/02/772...z-general-anora

Anora have bot coverage for the system as well as lost of income. They only recommend to start cover after your system is installed.

I bought home content because I was worried of the worst that can happen.
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How much is their annual premium for yours?
adamw
post Jul 23 2024, 10:13 AM

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QUOTE(dwRK @ Jul 23 2024, 09:54 AM)
yes... ive mentioned before for normal ppl best get nem contractors... obviously when wanna diy one should have enough technical knowledge, its pros and cons to take on the risk and enjoy the rewards... smile.gif

was just musing as got a few posts about batteries and offgrid so i did some quick cost estimates using shopee pricing and find it very close to nem folks...
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If Shopee pricing is close to NEM then direct import will be cheaper then NEM? hmm.gif
adamw
post Jul 25 2024, 12:13 PM

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QUOTE(dwRK @ Jul 25 2024, 06:22 AM)
surely...

nem = bulk direct import + salary + tax + profit + ... smile.gif

but honestly speaking... myself engineering and project background and high electrical skills also uncertain on direct import and embark on full house diy... not yet anyways... lol...
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If just NEM without battery is not so bad, with battery have to be very careful!
QUOTE(yushin @ Jul 25 2024, 07:46 AM)
If want to DIY, direct get stock from Taobao, dont go through middleman like shopee.
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Taobao is not exactly cheap brows.gif

This post has been edited by adamw: Jul 25 2024, 12:15 PM
adamw
post Jul 28 2024, 07:14 PM

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QUOTE(xHj09 @ Jul 28 2024, 06:56 PM)
Wow.. as low as 19. Mine hit 28 yesterday.

My location is at Cheras, yours?
Wah, 7.26 gave you 32.12??

Quite big difference.. which location?
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Need compared inverter total kW.
adamw
post Aug 1 2024, 12:00 AM

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QUOTE(bee88 @ Jul 31 2024, 11:15 PM)
Going off grid and self sustain is always possible. As long as u get ur calculation right and you are willing to fork out the money for storage. And not to mention a slightly bigger solar panels to ensure ur storage can be sufficiently filled up on bad weather.  It’s all about how much you are willing to fork out. And of course this kind of project, don’t bother the ROI. It’s more towards self satisfaction.
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His is a condo might as well forget it!
adamw
post Aug 21 2024, 09:46 AM

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QUOTE(backspace66 @ Aug 21 2024, 08:26 AM)
Any recommendation for 1200 to 1400 kwh usage per month?

Is it possible to use a larger kwp system to offset days or months with lower yield?
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If 3 phase 12kW enough, unless your consumption is mostly after sunset.
adamw
post Aug 22 2024, 12:15 PM

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QUOTE(backspace66 @ Aug 22 2024, 07:50 AM)
The consumption is mostly after 5 pm during work days. No one around during day time.

Does this has anything to about export of power generation? I am still a little confused actually.
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TNB is smart, they calculate usage first with ICPT & tax then only minus the solar power generated. Many high usage subscriber need resort to using battery or subscribed to GET to prevent ICPT charges.

adamw
post Aug 27 2024, 02:06 PM

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QUOTE(g0lightly @ Aug 24 2024, 04:06 PM)
Not so long overdue post and updates:

Signed quotation 27/6
Submit for SEDA approval 2/7
SEDA approved and cert issuance 5/7
Solar installation 2/8 (Huawei long lead time)
NEM application to TNB 6/8
Meter installed 16/8
TNB approved and welcome letter 17/8
Solaris approval- hopefully getting the approval soon within 14 days

10.44kw x 4hr x 0.77 = 32kwh/day
Generating 30ish kWh on day 1.. not bad
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Can share or PM your vendor contact?
adamw
post Aug 28 2024, 05:03 PM

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Can today beat 24th Aug? brows.gif


Attached thumbnail(s)
Attached Image
adamw
post Aug 28 2024, 05:29 PM

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QUOTE(manx @ Aug 28 2024, 05:08 PM)
Nice... what is the system capacity?
Also, any data during rainy day? will it be like totally 0kW generated?
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System 6.96kW, worst day on 20th & 26th aug still can generate 12.9kW & 13.8kW respectively! Very unlikely to be zero.
adamw
post Aug 28 2024, 10:50 PM

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QUOTE(icehart85 @ Aug 28 2024, 10:48 PM)
System 9.28 kWp, worst day generate 11.55 kWh  smile.gif
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This month? Which day?
adamw
post Aug 31 2024, 03:29 PM

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QUOTE(mrstohchu @ Aug 31 2024, 02:58 PM)
PJ here... sun has been playing hide and seek pretty much whole of last and this week. Kejap sunny, kejap cloudy. Haih~

9.68kwh system. 30 Aug was not a good day~

user posted image
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KL same2 today, like roller coaster ride! brows.gif

This post has been edited by adamw: Aug 31 2024, 03:30 PM


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adamw
post Sep 1 2024, 12:38 PM

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QUOTE(icehart85 @ Sep 1 2024, 11:04 AM)
Don't worry, I already have it, it's very lousy, you are not missing out  biggrin.gif
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Wonder if later quota over only you commission it, still can get 4k Solaris? brows.gif
adamw
post Sep 1 2024, 09:09 PM

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QUOTE(WhitE LighteR @ Sep 1 2024, 07:26 PM)
If the meter got the 51 reading then no need to change meter?
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Yes, just wait for welcome letter from TNB can start already rclxms.gif
adamw
post Sep 3 2024, 01:32 AM

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QUOTE(JohnLai @ Sep 2 2024, 09:50 PM)
Get an off-grid AIO inverter like me and don't export?

[attachmentid=11502046]
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Using battery or not?
adamw
post Sep 3 2024, 08:48 AM

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QUOTE(sihamsedap @ Sep 3 2024, 08:34 AM)
Mine breakeven in 3.5 years taking into account of the 1.5k kwh penalty

Now halfway recoup liao
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1.5k kwh penalty? What's that?
adamw
post Sep 3 2024, 08:46 PM

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QUOTE(JohnLai @ Sep 3 2024, 08:39 PM)
Got.
I have four battery packs.

280ah x 51.2v = 14336wh (14kWh)
280ah x 51.2v = 14336wh (14kWh)
314ah x 51.2v = 16076wh (16kWh)
200ah x 51.2v = 10240wh (10kWh)

brows.gif
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How many Growatt 6kW you using? Total panel size?
Is that SPF 6000ES Plus? Good?

adamw
post Sep 3 2024, 09:30 PM

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QUOTE(JohnLai @ Sep 3 2024, 09:02 PM)
380 watts panel X 10 pieces. My parking roof size limitation.
Growatt SPF6000ES = freaking loud under load/inverting and charging above 3000watts?

Got another four 445watts panels unconnected at the back of the house kitchen roof. Not sure if I should buy Victron Smartsolar 250/60 as a charger for this set.
Takde business.
sweat.gif
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3000Watts enough to charge all those batteries?

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