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 Home solar 4 months in.

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angelgemini
post Jan 9 2025, 10:54 AM

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QUOTE(jerrymouse @ Jan 9 2025, 10:41 AM)
I see, but it happen frequently?. Did you experience frequent sudden drop of the power output during a normal fine day, like sunny day but power generated is lower than expected (based on previous data)?
I understand there is a + - 20% difference from the theoretical power output from solar panel, bad weather and cloudy sky play a role in affecting the solar power generation as well.

It is just that once the solar system is done installed, it will be there for 10-15 years without changing. So I am a bit dilemma in choosing my option at hand, should I be worry about the solar system reliability or company after service support?

Option 1 : String Inverter
Like - listed Company with good track record, unlikely to closeshop. From review post support and services looks fine)
Dislike - Weakness and limitation on the solar system, irregular power output

Option 2 : Micro inverter
Like - Power output more stable than string system, one panel failure doesn't affect overall throughput.
Dislike - Company establishment and track record is quite new. Uncertainty if company still exist in the long run, not sure about post-support and services.
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should add on this way.

if the inverter company close shop or been take over by other company.
the inverter will become junk, as all required cloud service to run.

Micro inverter should be impact the most if the manufacturer close down.

angelgemini
post Jan 9 2025, 11:41 AM

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QUOTE(bee88 @ Jan 9 2025, 11:35 AM)
If not mistaken, For hoymiles , there should be no worries.  Now There are custom devices that matches with hoymiles inverters that allow independent monitoring and operating without manufacturer , should the manufacturer goes out of business, which is not likely anyway in current situation.
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good to know that,

not about close shop, could be take over by other company then discontinue the service, which happen before in USA.

force the solar installer to replaced all the micro inverter at the roof to another company.
angelgemini
post Jan 9 2025, 02:00 PM

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QUOTE(skywardsword @ Jan 9 2025, 01:14 PM)
I do not know which Inverter company will bankrupt next. We all try to pick the winner. The top sales company may bankrupt next because they did not manage their finance well. They offer 10 or 15 year warranty also no use. They bankrupt I'm 5 years after all water fish like us invested.

So better plan to get ROI back asap. After that just see if they thing truly last so long.

Fingers cross... 3-4 years nothing major happen to installer and manufacturer....otherwise... Lose money without knowing what hit us.
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very true.


angelgemini
post Jan 10 2025, 02:22 PM

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how many of you experience overvoltage issue?

angelgemini
post Jan 10 2025, 02:52 PM

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QUOTE(sgpdsmss @ Jan 10 2025, 02:48 PM)
how to determine over voltage?
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the grid voltage can go above 250V.

i got few friend gave this issue.

1 of them get up to 258V, the inverter shutdown.
so need get TNB to fix at the transformer there.
angelgemini
post Jan 10 2025, 05:25 PM

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QUOTE(sgpdsmss @ Jan 10 2025, 03:15 PM)
so only can know when the solar system down ?
maybe ..

anyone have similar bill as me after solar in operation ?
thanks
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Anytime also can check,
i think is not cause by solar, but TNB

QUOTE(sgpdsmss @ Jan 10 2025, 03:28 PM)
i using s miles app ..same as fusion app?

BTW
my tnb meter, the alarm led light up ..what's meant ?

thanks ..
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which light u mean?
there got few light.

green is the communication light,

the red is the KWH pulsing LED
angelgemini
post Jan 10 2025, 06:32 PM

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QUOTE(sgpdsmss @ Jan 10 2025, 06:17 PM)
ya ..need to clear the bill...
yes the app alarm icon under the  inverter  icon ...
yeah ..it's like normal step from non NEM to NEM
alarm light like below link ...
https://www.facebook.com/share/p/19tLWaUQ33/

can view?
thanks
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alarm LED,
then depend what is the event/alarm triggered,

only TNB HES can read it.

nothing to worry, there is over 200 type of alarm in DLMS standard, lol

angelgemini
post Jan 10 2025, 11:23 PM

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QUOTE(sgpdsmss @ Jan 10 2025, 07:41 PM)
yes ...so need to check with tnb what the alarm meaning ?
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only they will know
angelgemini
post Feb 14 2025, 02:19 PM

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hi, anyone add on meter to track how much solar energy go out to TNB?
for huawei inverter, anyone done it ?
angelgemini
post Feb 16 2025, 04:00 PM

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QUOTE(eagle7 @ Feb 15 2025, 11:54 PM)
If your electrical system operates on a single phase, you can install this Intelligent Energy Meter Solar PV System with 2 CTs. One CT connects to the Solar line, while the other connects to the Grid line.

user posted image

The accompanying app installed on your smartphone will display the electrical current and power on both the Solar and Grid lines. However, the app cannot provide daily, weekly, or monthly data on solar generation or import/export to the grid. You'll need to manually track and calculate your daily usage.

Where Channel A: Grid (TNB) Line reading; Channel B: Solar line reading.
user posted image

The above issue can be resolved using Home Assistant (Smart Home Apps hosted by your home server), which includes a built-in Energy module to handle this for you. Here's how it looks on the phone.
user posted image

This information is very useful and fulfilling too.
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look very interesting, just my inverter is at 2nd floor switch box
which is different floor from my main switch box...


angelgemini
post Feb 17 2025, 05:17 PM

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QUOTE(eagle7 @ Feb 16 2025, 11:15 PM)
@RVN10, the application is called Home Assistant. It can be hosted on various devices such as Single Board Computers, NAS systems, or even old computers. For more details, you can visit their official installation page: Home Assistant Installation.
@angelgemini, in your situation, instead of purchasing a single energy meter with 2 channels, you’ll need two separate energy meters, each with 1 channel. One meter will monitor the TNB incoming line, while the other will monitor the solar incoming line. Using the Smart Life app, you’ll see two separate devices instead of one device with two channels.

These devices can determine the direction of energy flow in the line (e.g., Forward = Import; Reverse = Export).

Setting up Home Assistant (HA) and integrating the energy meters can be challenging for someone without an IT background. Tasks like assigning a static IP address to the HA and energy meters (if using the Wi-Fi version), installing plugins, and some basic coding may be required.
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what is this HA?
angelgemini
post Feb 18 2025, 12:07 PM

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QUOTE(eagle7 @ Feb 18 2025, 12:08 AM)
To ensure consistent operation, it is recommended to assign static IP addresses to all smart devices and Home Assistant (HA) on your home network. This prevents issues where a power interruption might cause your network router to assign different IP addresses to your smart devices, potentially making it difficult for HA to locate them.
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oh, any recommended HA software?

do Smart Home apps by Tuya consider HA?
angelgemini
post Mar 6 2025, 11:54 AM

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QUOTE(Cavino @ Mar 6 2025, 11:24 AM)
Once your bill (import) exceeded 600, any charges therefore are charge 8% SST, then you have 1.6% charges of your overall usage (not including SST).

Even if your solar generation contra all of that off, the SST and 1.6% will still remain..plus the RM3 minium charges.

So in Feb, I have imported 671kwh from TNB. My solar generation contra all of it off with extra solar generated leftover for next month.
I still got the SST charges RM3.10 (71 units above 600) with 1.6% (1.6% of RM270.57 based on 671units) RM4.33 plus RM3...= RM10.43

So if you are heavy users, the more you imported from TNB during the month, even if your solar generated are super high and covers all of it, you will still have to pay the SST and ICPT charges plus with min. charges. Either way the government still get the tax even if TNB does not charge your anything....oh wait, they do, the minimum charges.
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maybe time to get a battery? hahahaha

or just assume is a battery (TNB) surcharge for keeping so much KWH at TNB,.
angelgemini
post Mar 6 2025, 02:13 PM

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QUOTE(Kiding @ Mar 6 2025, 12:35 PM)
no need to buy battery, just buy EV  brows.gif
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good idea, hahahaha

EV as battery
angelgemini
post Mar 7 2025, 10:08 AM

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QUOTE(stevenlee @ Mar 7 2025, 09:59 AM)
so far, i dont hv any bad experience.
as my understanding PG outsource the installation to 3rd party.
my installer was very nice... we even exchange conversation during installation.
everything went well and complete within 4 hours.
they even help clean up my house, sweep and mop... biggrin.gif due to dirt from drilling to install the combiner box.

regard to S-mile apps, everything is correct for me, even the panel arrange is neatly.
so far every panel generated the energy equally at ave 70%-80% rate..

what dmg claim you submitted?

so far, they pending my referral fee.. already 2 weeks still yet bank in  tongue.gif
still owe one forumer referral fee  laugh.gif
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referral fee from them, me 2 month plus also not yet get.
dun say 2 week.
angelgemini
post Mar 17 2025, 02:32 PM

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https://suriashield.tnbx.com.my/home

just google and found this solar insurance,
anyone have any feedback or experience on them?
angelgemini
post Mar 27 2025, 10:50 AM

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QUOTE(MrBaba @ Mar 27 2025, 12:17 AM)
My friend solar panel kena petir , cannot claim warranty ... Really topkek
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actually how solar panel can kena petir?


angelgemini
post Mar 27 2025, 11:29 AM

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QUOTE(netflix2019 @ Mar 27 2025, 11:14 AM)
I have seen my neighborhood house kena petir. no solar panel but the roof 1 lubang
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mean like, solar panel will not add extra risk of kena petir right?

is same as normal roof top risk?
angelgemini
post Mar 27 2025, 01:58 PM

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QUOTE(bee88 @ Mar 27 2025, 12:20 PM)
more like u kena means kena. no extra or higher chance kena with solar. from my reading last time.
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yes,

cause got info say solar = higher change kena.


so i think best way to prevent lightning is to have coconut tree beside the house? lol
angelgemini
post Mar 27 2025, 02:21 PM

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SPD useless?

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