Are you using solar?

Interesting. The only time I've seen unexpected* increases are for non-tou->tou transition bills where both bills were charge 8% SST for kWh used due to a TNB rule which states that bills which have a billing period of less than 28 days are charged SST irregardless of kWh.

*unexpected because we weren't aware of this rule, not because it's a hidden rule. It's stated on TNB's website and is printed on the old format bills but not printed on the new format bills.

It's always been like that. I started using the dashboard mid of August for the usage.csv files. Always, reload, reload, pusing, too many redirects, etc...

There was a good day where I downloaded usage files for 100+ days. Other days, it's 10-15 mins of trying then giving up and coming back later for another 10-15 mins before I can download the usage for yesterday.

Last few days not accessible since TNB has been doing maintenance. Hopefully they'll improve it. That is, if they get it back up. Whatever maintenance they did has totally screwed up the dashboard.

Anyway according to the notices on myTNB web, the maintenance is scheduled to end on:
1. 21 Sep 4PM
2. 22 Sep 11:30PM
3. 24 Sep 11:30PM
4. no more date given...

This post has been edited by soonwai: Sep 23 2025, 10:54 PM

Finally managed to download all my usage data from TNB energy dashboard. 803 days. Oldest I have is 30/7/2023 but incomplete so 31/7/2023.

What is the oldest data available for yours?


Smart meter was installed Nov 2020.


May as well graph all that data.

This post has been edited by soonwai: Oct 12 2025, 12:35 AM

Smart meter AND owner verified login then only the button will appear.

Possible because once you go even 1 kWh above 350 kWh, your ICT discount decrease by 4 sen per kWh. 358 x 0.04 is already RM14.32. If you look at the ICT table, you'll see there's a big decrease in the discount after 350 kWh.

For example, at 20% peak,
350 kWh is RM76.98
351 kWh is RM91.46

This post has been edited by soonwai: Nov 19 2025, 04:59 AM

So your bill date is 10th therefore your billing period is 10th to 9th.

If your change happens today which is 19th, you'll get 2 bills. 10th-19th (10 days) and 20th-9th (20 days). Since both bills are less than 28 days, both will kena SST ie: rugi.

You'll need to time it so that the change occurs 2/3 days (depending on 30 or 31 days in that month) before the bill date. And hope the change is smooth and not delayed.

This post has been edited by soonwai: Nov 19 2025, 05:21 PM