Unless your house is single phase else there is no logic, right?

Company reputation at stake wor ... who in the right mind would do this?

This post has been edited by etan26: Jan 7 2024, 02:37 PM

The logic is single phase inverter is cheaper and that the inverter does not need to offset all phases since any export in the single phase will be use as credit for the other 2 phases.

Also 99% of consumers do not even know (like 90% of /k) that single phase and 3 phase inverter exist . They think inverter is just an inverter.
They just look at total installation cost without looking at inverter specs.

This post has been edited by Drian: Jan 7 2024, 04:13 PM

If I am the user, you know i do if I found out this issue? The solar company will get reported to the ministry due to incompetence for product sales. This is a serious issue and the company can be hauled up.

No because it is all clearly stated in the quotation and there is no safety issue violated.
They can argue that they are meeting your budget and the model and brand name is all black and white in the quotation.



If the quotation looks like this:-

3. Solar PV Module
+ Trinasolar TSM-DE17M(II)-455W / Canadian Solar CS3W-455MS X14 units

4. Solar PV Inverter
+ Solis Inverter 1P6K-4G x1unit

How many people here will notice this? How many people are technical enough to realise based on above that this is a single phase inverter?
How many people do you think even have the knowledge to know even what an inverter is?

The same also for solar panels . How many people will realise if the solar panels given is tier 1 or tier 2 panels.

This post has been edited by Drian: Jan 8 2024, 10:57 AM

Google for it...and clarify

Like you have said before, they are awared of short coming yet still give you the wrong advice. Like it or not to me this is a fraud.

They are supposed to propose a solution, a proper one that is. Unless they gave 2 options then you choose the cheaper one.

This post has been edited by etan26: Jan 8 2024, 12:04 PM

Good question...i actually checked and seems like my was 3 phase output (On grip) (Huawei Sun2000-8ktl-m1)

Yes. Many people just buy without looking at what they actually getting. Coz the agent usually just highlight the savings and savings.

From this quotation, i think this is usually for single phase. 6kwp system usually for single phase max.

Of course there is a possibility that a 3 phase house is installing 6kwp system as well lah.

But yea. Look at the inverter model. 1p means 1 phase. 3p means 3 phase.

But I will still avoid string if possible due to high dc and arc fault which can cause fire.

You can think is fraud, but you'll never be able to sue.
Thousands of wrong advice in the financial world, wrong country policies nobody can sue.
Do you really think that a black ands white quotation you can sue for fraud. They will just counter you back , why you didn't ask and just assume.

This quotation is for a 3 phase sytem.

I recently finished my solar installation using hoymiles micro-inverter.

But installer does not want to provide me with the end user username and password for hoymiles s-Miles monitoring app system saying its only for there own usage. Instead have to rely on there own app for monitoring with minimum info.

You think i can go to consumer tribunal to force them to give me the access to hoymiles s-Miles monitoring app?

I always enquired with my sales consultant regarding the solar setup before finalizing else you got misinformation. If what you asked is not what you get then pls go to tribunal court.

The solar company name is at stake. Btw don't get yourself confused with financial world ya.

If you buy blindly without due diligent, then no one to blame. The product not just cost a few thousands but tens of thousands.

The way you talk as if the whole country only you know how solar works...... adui... hahaha
You keep repeating how ignorant others are .... maybe you right ...haha

This post has been edited by etan26: Jan 9 2024, 09:29 PM

Nobody ask specifically for a 3 phase inverter.
They will ask for a quotation for solar, based on roof size and electric bill.

If you ask for a 3 phase inverter and sales consultant lied to you that is a different story.
In this case if you didn't specifically ask for a 3 phase inverter and you receive this quotation and if you accept it without checking, then the burden is on you.

This post has been edited by Drian: Jan 10 2024, 08:44 AM

Are saying they gave single phase inverter to 3 phase user? If all worked fine, I guess it;s fine then.

This post has been edited by etan26: Jan 10 2024, 08:55 AM

I foresee the problem will come after the 10-year contract with TNB ended and the owner decided to install 100 kWH of battery to hold 2 days of sunlight energy and then find out that this energy can only be used in one of the electrical phases (e.g., a certain section of the floor), but the other phases have to draw from TNB.

In summary, underutilize the battery capacity sized for 3 phases, which can only be used by one of the phases.

I wonder if this kind of trick is also practiced by TNB's solar subsidiary.

What do you mean their own app? Surely can use hoymiles own app to monitor. U can see the panels, performance , and energy generation.

Smiles end user app.

I think no need 100kwh battery. That’s overkill already. Since solar generation is daily. Maybe you just need about the night usage kWh size battery.

Solaroo own app, they dont wanna provide hoymiles login

If I have 13KWac Solar Systems, and able to generate 45.5KWh (13KWac x average of 3.5 Full Day light) per day and size the battery to 1.5 to 2 times of the daily capacity maybe make sense.

The battery will last longer if charge and discharge around 30 to 80% of its rated capacity.