what battery do Huawei inverter support?
worth all the afford for that extra KWH?

forget which year already, Malaysia energy commission changed the spec which 256V is normal for grid.
each country different spec/requirement/limit.

inside aircon room ,the inverter also so hot,

anyone know the rm4k rebate still available?

this is 2 separate system right?
i thinking also can this separate system exclude from the NEM?

purely run for the normal house power usage. hmmmm
like fridge etc.

cause 4 panel = max 2.46kwp only

maybe need to calculate if house have the constant 2kwh usage , then only can add on

example items that will on 24/7

1. fridge,
2. Server
3. Light
4. special equipment

anyone experience solar generating and sudden no power from TNB, what will happen?

oh, will not able to use solar power?

also TNB can sell all the green energy certificate to commercial and industrial.

in reality when solar panel go into grid, no people can different the current is from solar or other power generation.

when we send solar power to TNB, TMB will record it as green energy,

when they sell energy to commercial, they can sell higher price from the recorded green energy from us.

something like green energy certificate.

so company don't generate any green energy, but buying green energy certificate to proof they using green energy.

to be fair, they done something, which is pay extra so solar community or farm can expend.

do you thing TNB will so willing to become our powerbank for free?
without those extra money, TNB will not become our powerbank.

200+ u used during day time, which never reach TNB meter.

so for solar user, new tariff or old tariff better?

not sure TNB used which to do calculation, there is few option.

1. Load Profile/Survey billing, which can be minute interval to hourly.

2. EOB TOU with multi Tariff.


option 1 is most accurate but most calculation job on MDMS.

option 2 is very easy, as all calculation done on Meter, but less flexible, any changes in Tariff required to change meter setup.

I asked ChatGPT.

Got it. Since you're on **NEM 3.0**, **excess exported energy (in kWh)** rolls over to offset future bills **until 31 December**, after which **the balance resets to zero** — no cash-out.

Given this, let’s refine your ROI calculation with **credit rollover** factored in.

---

### 📊 **Summary of Your Year (Aug 2024 – Jul 2025)**

Month	Solar Gen	Export	Import	Net Export (Export - Import)
--------	---------	------	------	----------------------------
Aug 2024	793.42	507	402	+105
Sep 2024	789.36	460	324	+136
Oct 2024	707.35	460	324	+136
Nov 2024	526.43	353	475	−122
Dec 2024	646.56	473	400	+73
Jan 2025	533.87	357	325	+32
Feb 2025	645.03	440	356	+84
Mar 2025	660.15	411	451	−40
Apr 2025	786.10	521	420	+101
May 2025	855.49	534	521	+13
Jun 2025	857.91	567	418	+149
Jul 2025	882.16	488	493	−5

### ➕ **Total Net Export Over the Year**:

```plaintext
(+105 + 136 + 136 - 122 + 73 + 32 + 84 - 40 + 101 + 13 + 149 - 5) = **+662 kWh**
```

So, you accumulated **662 kWh** of **excess energy credits** by **December 2024**, and used some during Jan–Jul 2025. But **if not fully consumed by 31 Dec**, it's **wasted** (zeroed out).

---

### 💸 **Old Tariff vs. New Tariff – Revised Annual Savings**

Let’s simulate:

Tariff Type	Export Rate (RM/kWh)	Annual Export Value (Total Exported: 5671 kWh)
------------------	----------------------	----------------------------------------------
**Old Flat Rate**	RM 0.50	RM **2,835.50**
**New TOU w/ EEI**	RM 0.45 (avg adjusted)	RM **2,551.95**

* **Difference**: −RM283.55 in annual earnings
* If **some credits expire** at year-end, actual value is even lower.

---

### 🧮 ROI Estimation (RM18,000 system)

If you **saved \~RM2,552/year** under new policy (vs RM2,835 before):

* **Payback period** = RM18,000 ÷ RM2,552 = **\~7.05 years**
(assuming you can fully utilize your monthly export + rollover, and tariff policies remain stable)

But if **some export credits reset** unused at year-end (e.g., 200 kWh × RM0.45 = RM90 loss), then:

* **Adjusted savings** ≈ RM2,462/year → ROI = **\~7.3 years**

---

### 🔁 Key Tips to Maximize ROI:

1. **Avoid large surplus in Nov–Dec** (as credits expire end of year).
2. **Use high-load appliances during the day** to avoid exporting unnecessarily.
3. **Track your export/import ratio monthly** — optimize to be close to zero net export.
4. **Battery**: Consider if daytime export > night use (especially toward Dec).

Let me know if you want this in Excel or Google Sheets with graphs and projections.

the new billing so so so complicated...
until now i also dunno how to calculate it.

do this mean, as long as my export > import , then will have zero impact to me?
which currently happen to me.
on the month i have no more balance and have import > export, then my rate is higher ?

someone share it at https://forum.lowyat.net/index.php?showtopic=5535374&hl=


look like very bad.

design life span is 1 thing, but never forget, micro inverter is a the roof top that shine and rain.

plus our weather is 365 extremely hot or crazy rain.
is Micro inverter designed for that?

also many standard is tested in lab test with 25C for the component life.

do you know what is inverter?

what like solar is your solar panel.

Inverter and component inside scare heat.



yup yup,