Monday, July 10, 2023

How much fuel cost can electric vehicle (EV) save compared with petrol car?

Electric vehicle (EV) has been steadily trending in the automotive talk-about nowadays.

The key selling points of EV cars being:

  • Environmental friendly
  • Fuel cost saving
  • No need to periodically change engine oil
While the "environmental friendly" argument is widely debatable, as the generation of electricity at power plant, and the production as well as the disposal of rechargeable batteries, might not be as "clean" as you think, the statements of cost-saving in fuel and engine oil are no doubt for EV cars.

Let's do some calculations on how much driving an EV car can save compared with driving a petrol car.

City driving of a typical 1.5cc~1.6cc petrol car consumes 1 litre of petrol for a journey distance around 12km. That will be 8.33 litres per 100km.

With this assumption, we can come out with the petrol car's fuel expenses on both RON 95 and RON 97 respectively.

A typical EV car will use up 16~17 kWh of battery power per 100km. During charging, there will be around 10% of energy lost. Let's take 18 kWh/100km for our calculation.

The electricity cost in the calculation above is based on the current residential rate. If you charge your EV car with charging station or using commercial/industrial electricity, you will need to work out your own calculation.

As the TNB tariff is accumulative based on electricity consumption bands, and charging of EV car is considered as additional electricity consumption to the household, we take the TNB rate at the highest consumption band. For example, if your household electricity consumption including charging of EV car falls under the band of 301~600 kWh, your EV car charging cost will be 51.6 sen/kWh.

From the 2 tables above, we can further calculate the amount of fuel savings of EV car compared with car using RON 95 petrol and RON 97 petrol respectively:


From here, we can observe that the fuel cost savings of EV car to RON 95 is not much. You can probably save around RM10~20 for each 1000km.

If you compare with those cars that pump RON 97 petrol, the savings is a little bit more, at RM80~90 for each 1000km.

Anyhow, there are still additional savings from fewer maintenance needed, and no cost for engine oil replacement.

However, there are also additional considerations on:
  • Depreciation and lost of second-hand value
  • Battery replacement cost when the time has come

Tuesday, June 20, 2023

Fixed Windows Explorer not responding issue

Today, my laptop suddenly experienced the Windows Explorer not responding issue.

The symptoms were like this:

  • When you double-click on a document, for example a PDF file or an Excel file, by right, the file should be opened by its associated application. Now, it hangs when the application trying to load up. The rest of the Windows and running applications will still function well, only the portion of Windows Explorer or File Explorer hangs up.
  • When you right-click on a file icon, by right, a pop-up option menu should appear. Now, it hangs before the pop-up menu is able to show up.
To fix this, you will need to go to command prompt window with administrator's right.

Because the right-click function no longer working, you can no longer just call out the CMD icon, right click on it, and select "Run as administrator" anymore.

Luckily, there is still alternative way to do so without using the right click menu.

To do so, press Win-R to open the Run dialog box, key-in "cmd" and press ctrl-shift-Enter. The command prompt window with administrator's right will be opened.

Then, run the System File Checker (SFC) to scan and repair your system files that could be corrupted.

The command is:
C:\> sfc /scannow


The process will take some time before it reached 100% completion.

Next, run the Deployment Image Servicing and Management (DISM) tool to further scan and repair any corrupted critical system files.

The command is:
C:\> dism /online /cleanup-image /restorehealth

Your computer needs to be connected to the Internet when you execute this command.

After the process is completed, restart your computer. Hopefully, this is able to fix your problem. It did fix my laptop problem!



Saturday, April 8, 2023

PTPTN finally announced 2022 dividend for SSPN-i and SSPN-i Plus

After a long waiting, the Malaysia National Higher Education Fund (Perbadanan Tabung Pendidikan Tinggi Nasional, PTPTN) has finally announced the dividend for year 2022 for the education savings schemes SSPN (Skim Simpanan Pendidikan Nasional, consists of Simpan SSPN Prime which formerly known as SSPN-i, and Simpan SSPN Plus which formerly known as SSPN-i Plus) on 5 April 2023.

The 2022 SSPN dividend payout rate is only 3.05%, amounting to RM266.17 million. This rate is just 0.05% higher than last year disappointing dividend of 3.00%.

This 3.05% dividend has already credited into our SSPN accounts respectively on 6 April 2022.

According to PTPTN, the number of SSPN accounts opened to date is 5.73 million.

Historical SSPN-i dividend payout rate is as below:

  • 2022: 3.05%
  • 2021: 3.00%
  • 2020: 4.00%
  • 2019: 4.00%
  • 2018: 4.00%
  • 2017: 4.00%
  • 2016: 4.00%
  • 2015: 4.00%
  • 2014: 4.25%
  • 2013: 4.25%
  • 2012: 4.25%
  • 2011: 3.75%
  • 2010: 3.25%
  • 2009: 2.50%
  • 2008: 4.00%
  • 2007: 4.00%
  • 2006: 4.00%
  • 2005: 4.00%
  • 2004: 3.00%


You can proceed to the new MyPTPTN website to check the transactions and amount of savings in your kid's SSPN account.

Beside that, the Ganjaran Kesetiaan Simpan SSPN Prime 2023 campaign is now launched and active until 30 April 2022. You can enjoy a 1% return for new money exceeding RM500 that you put into your account during the period, provided that the SSPN account you opened for your kid's education saving is before year 2020, and no withdrawal of any money from your account from 5 April 2023 onwards until 30 September 2023. Maximum amount to be given under this campaign would be RM8,000 per account.


Hint: Click on the "Older Posts" link to continue reading, or click here for a listing of all my past 3 months articles.