Your electricity bill contains a lot of information. This page will help you understand the most important billing components in your electricity bill.
Customer electricity consumption will be charge as their usage. The rates are as stated in Pricing & Tariff. The unit for the consumption used is kWh.
For low voltage customer (commercial, industrial and agriculture), their usages are usually charged based on two block price rate which are ≤ 200 kWh and above 200 kWh.
For medium and high voltage customer, only one price rate is applicable as stated in Pricing & Tariff.
Note: If billing period is above 35 days , proration factor applies
Low Voltage commercial customer A has a consumption of 350 kWh in his July 2018 bill. Based on price rate stated in Tariff book, the consumption will be divided into two blocks as below
200 kWh x RM 0.4350 = RM 87.00
150 kWh x RM 0.5090 = RM 76.35
Medium Voltage Commercial customer B has consumption of 500 kWh in his July 2018 bill
MD is measured in Kilowatt (kW). MD is the highest level of electricity demand recorded by TNB meter during a 30-minute interval in a month.
The kW amount charged to customer is based on
Recorded MD (kW) x *MD rate
*Please refer the rates in Pricing
& Tariff.
For more information, refer to Maximum Demand FAQ.
The amount payable by a Tariff C2 customer registering 100kW of MD for a particular month
Few activities could be carried out by customers that assist in reducing MD charges such as:
Practicing demand side management such as peak shift i.e. shifting their peak operation/consumption to off peak period as MD charges is not applicable during off-peak period for customer with peak/off-peak tariff
Opting for any promotional scheme offered by TNB relating to MD such as Sunday Tariff Rider Scheme (STR).
Starts your motor/equipment in stages or during off-peak period
A consumer who applies for temporary supply shall be charged at the tariff rate appropriate to their category plus 33% surcharge on the total monthly bill. This is mostly applicable for construction site that requires temporary supply for construction site/site office.
A construction site applies for temporary supply for the site office. The January 2018 bill shows the following billing components charges
Consumption charges (kWh) = RM55.20
ICPT = RM1.30
*Rate may varies every 6 months
For low voltage customer (commercial, industrial and agriculture, monthly charge applicable to a consumer in the event of monthly total electricity bill (kW and or kWh) is less than RM7.20. If consumption is 0 kWh, the RM7.20 is imposed in the bill.
For medium and high voltage customer, monthly charge applicable to a consumer in the event of monthly total electricity bill (kW and or kWh) is less than RM 600.00. If consumption is 0 kWh, the RM 600.00 is imposed in the bill.
The formula used to determine Monthly Minimum
Charges are as following:
TMMC charges –
(kWh charges + kW charges + Discount Amount + ICPT)
Medium voltage Customer with billing period below 31 days receives Jan 2018 bill with the following charges
Consumption charges (kWh) = RM5.00
Maximum Demand charges (kWh) = RM45.00
ICPT = RM0.50
Low voltage customer with billing period 38 days receives Jan 2018 bill with the following charges
Consumption charges (kWh) = RM0.00
ICPT kWh = RM0.00
Proration Factor (38/30 days) = 1.26667
Imbalance Cost Pass Through (ICPT) is a mechanism under the Incentive Based Regulation (IBR) framework which allows for TNB, as the utility, to reflect changes in fuel and other generation-related costs in the electricity tariff. This is because these costs are set based on benchmarked prices in the base tariff.
The implementation of ICPT, which occurs every 6 months, would reflect the actual costs in tariff in the form of rebate or surcharge. Furthermore, the impact of ICPT implementation is neutral on TNB and will not have any effect on its business operations and financial position
IOn 23 June 2023, The Government of Malaysia decided to introduce a targeted subsidy scheme for the ICPT implementation period from 1 July 2023 until 31 December 2023. The ICPT rates for the period of six (6) months from 1 July 2023 to 31 December 2023 according to customer categories and tariff type are as follows:
Imbalance Cost Pass Through (ICPT) formula = Total kWh Consumption x ICPT Rate (RM/kWh).
Consumption in August 2023 is 4,350kWh, ICPT rate is RM0.037/kWh
ICPT charge
=4,350kWh x (0.037)
=RM 160.95
Consumption in August 2023 is 424,681kWh, ICPT rate is RM0.17/kWh
ICPT charge
=424,681 kWh x (0.17)
=RM 72,195.77
Find out more info in ICPT FAQ and https://myelectricitybill.my
RE Fund (KWTBB) is a fund collected by the Government through consumer’s electricity consumption. The Fund will be used to promote growth of electricity generation from renewable energy resources.
In line with the Renewable Energy Act 2011 (RE Act 2011), the Renewable Energy (RE) fund (KWTBB) is collected through a surcharge of consumers’ electricity consumption at the rate of 1.6%.
TNB is only the collecting agent of the fund for the Government.
RE Fund (KWTBB) surcharge is calculated as follows: RE Fund (KWTBB) Surcharge = 1.6% × [(kWh+kW) – Discounts]
The RE Fund (KWTBB) collected from the customer’s electricity bill is channelled to the Government (SEDA - Sustainable Energy Development Authority). For more information, you can visit this website: seda.gov.my
Customer A have charges on the following billing components:
Consumption for 400 kWh = RM 87.20
10 % TNB Discount = RM 8.72
When it is imposed
The penalty charge will be imposed if payment is made later than 30 days
after
the bill date
How it is calculated
The amount is calculated based on 1% (simple interest) of the outstanding
bill
amount, multiplied by number of days outstanding.
Waivers
This penalty cannot be waived unless proven to be an administrative error on
TNB’s part.
How to Avoid it
Please pay your bill within 30 days from the bill date.
Total billed amount: RM1,000.00
Bill date: 1 May 2018
Date of payment: 10 June 2018
Days outstanding: 10 days
Consumer Category
CLC Calculation
Year | Reference Maximum Demand* |
1 | 85% x [Declared MD Year 1 or Highest Recorded MD, whichever is higher] |
2 | 85% x [Declared MD Year 2 or Highest Recorded MD, whichever is higher] |
3 | 85% x [Declared MD Year 3 or Highest Recorded MD, whichever is higher] |
4 | 85% x [Declared MD Year 4 or Highest Recorded MD, whichever is higher] |
5 | 75% x [Total Declared MD or Highest Recorded MD, whichever is higher] |
6 | 75% x [Total Declared MD or Highest Recorded MD, whichever is higher] |
Note:
Year | Reference Maximum Demand |
1 | 85% x [Declared MD Year 1 or Highest Recorded MD, whichever is higher] |
2 | 85% x [Declared MD Year 2 or Highest Recorded MD, whichever is higher] |
3 | 85% x [Declared MD Year 3 or Highest Recorded MD, whichever is higher] |
4 | 75% x [Total Declared MD or Highest Recorded MD, whichever is higher] |
5 | 75% x [Total Declared MD or Highest Recorded MD, whichever is higher] |
Note:
There are some scenarios in determining the period of CLC.
Kindly complete this CLC Form 1 for MD declaration in phases for CLC calculation purposes (whenever applicable) and attach it during supply application.
Charges
Year 1 : 2,000 kW
Year 2 : 5,000 kW
Year 3 : 7,000 kW
Year 4 : 8,000 kW
Year | MAXIMUM DEMAND DECLARED FOR CLC | REFERENCE MAXIMUM DEMAND (RMD) | ACTUAL MAXIMUM DEMAND(AMD)** | CLC PENALTY(RM) |
1 | 2,000kW | 85% x 2,000kW = 1,700kW | 1,200kW | RM8.50 x (1,700kW – 1,200kW)= RM4,250 |
2 | 5,000kW | 85% x 5,000kW = 4,250kW | 4,800kW | No penalty. AMD > RMD |
3 | 7,000kW | 85% x 7,000kW = 5,950kW | 5,250kW | RM8.50 x (5,950kW - 5,250kW) = RM5,950 |
4 | 8,000kW | 85% x 8,000kW = 6,800kW | 7,000kW | No penalty. AMD > RMD |
5 | 10,000kW | 75% x 10,000kW = 7,500kW | 8,000kW | No penalty. AMD > RMD |
6 | 10,000kW | 75% x 10,000kW = 7,500kW | 8,200kW | No penalty. AMD > RMD |
**Assumption: Actual Maximum Demand (MD) recorded in 1 month within a CLC year
Existing MD : 10,000 kW
Additional MD : 5,000kW
Total MD declared for the whole development: 15,000kW
MD declared in phase for CLC calculation:
Year 1 : 9,000 kW
Year 2 : 11,000 kW
Year 3 : 13,000 kW
Year | MAXIMUM DEMAND DECLARED FOR CLC | REFERENCE MAXIMUM DEMAND (RMD) | ACTUAL MAXIMUM DEMAND(AMD)** | CLC PENALTY(RM) |
1 | 9,000kW | 85% x 9,000kW = 7,650kW | 8,500kW | No penalty. AMD > RMD |
2 | 11,000kW | 85% x 11,000kW = 9,350kW | 9,500kW | No penalty. AMD > RMD |
3 | 13,000kW | 85% x 13,000kW = 11,050kW | 10,700kW | RM8.50 x (11,050kW - 10,700kW) = RM2,975 |
4 | 15,000kW | 75% x 15,000kW = 11,250kW | 11,200kW | RM8.50 x (11,250kW - 11,200kW) = RM425 |
5 | 15,000kW | 75% x 15,000kW = 11,250kW | 12,000kW | No penalty. AMD > RMD |
**Assumption: Actual Maximum Demand (MD) recorded in 1 month within a CLC year
Few activities could be carried out by customers that assist in reducing MD charges such as:
In addition to the appropriate tariff rate, there will be a surcharge for transformer-operated electric welding equipment installed for low voltage consumers at RM3.00 per kVA per month, and for medium and high voltage consumers at RM2.00 per kVA per month. Motor-operated welding sets are exempted from the foregoing surcharge.
An industry low voltage customers has welding set usage of 67.86 kVA in his Jan 2018 bill with billing period of 31 days
Welding Set Load (kVA)
|
40 |
A Power factor surcharge is imposed when your power factor is less than 0.90 (electricity supply 132kV and above) or less than 0.85 (electricity supply below 132 kV).
Calculation to determine
Power
Factor
kWh / √ (kWh2 + kVARh2)
Power factor surcharge for customers with electricity supply below 132 kV is calculated as follows:-
1.5% surcharge of the current bill – for every
0.01
less than 0.85 power factor
[[(0.85 – PF)/0.01] x 1.5% ] x [RM kWh + RM kW + RM
ICPT]
3% surcharge of the current bill – for every
0.01
less than 0.75 power factor
[[(0.85 – 0.75)/0.01] x 1.5% ] +[[(0.75 – PF)/0.01]
x
3% ]] x [RM kWh + RM kW + RM ICPT]
Consumption used by Customer A is 3,500 kWh where the power factor is 0.73. The ICPT rate is RM 0.0135
Total consumption (RM) = RM1,531.30
Consumption used by Customer B is 3,500 kWh where the power factor is 0.80. The ICPT rate is RM 0.0135
Total consumption (RM) = RM1,531.30
The below organizations/learning/worships center are eligible to a 10% discount on their monthly bills:
1. Welfare organizations such as orphanage and elderly home, home for the blind and disable, spastic’s center that are fully funded and administered by Ministry of Women, Family and Community Development or such institutions with source of income funded by public donation
2. All government and private institutions of learning which are fully or partly funded by the government and normally administered by Ministry of Education.
3. Places of worship registered under Registrar of Societies and/or its respective religious governing body such as State/Federal Islamic Religious Council/Department, Malaysian Buddhist Association, Malaysian Hindu Sangam, Sikh Naujawan Sabha, Sikh Youth Movement, Buku Panduan Katholik and Buku Panduan Gereja Malaysia dan Brunei.
The formula for TNB Discounts is as below:
TNB Discount = 10% x (Consumption charges + ICPT)
Note: Customers in the mining tariff category are entitled to a 25% discount on their monthly bills.
The April 2018 bill for Sek Keb A shows
Consumption charges (kWh) in RM = RM231.80
ICPT (RM 0.0135) = RM 8.11
Proration factor applied by TNB will benefit the customers whose meters are read above 35 days
Proration Factor = Number of billing days / 30
Prorated Factor will be multiplied with each tariff block for low voltage customer. Customer will benefit lower rate for expanded consumption block range.
Low Voltage Customer receives Jan 2018 bill with 38 days billing period with consumption 850 kWh
Consumption block (default) | Usage (kWh) - Prorated | Rate (RM/kWh) |
200 | 200 x 1.26667 = 253 | 0.4350 |
> 200 | 850 – 253 = 597 | 0.5090 |