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Electricity Supply Service Performance Standard.

Guaranteed Service Levels (GSL)

These guaranteed service levels, as stipulated below, set the required levels for the purpose of ensuring the quality of the delivery of services  of TNB, whereby failure to comply on the part of TNB will result in penalty in the form of rebate to consumers.

GSL Description Rebate

1. Availability of Supply - Frequency of Interruption

The frequency of unplanned supply interruptions (breakdown) experienced by users within a year (January to December):

  • WP Kuala Lumpur and Putrajaya: More than 4 times a year with each interruption occurring for more than 4 hours,
  • Other areas: More than 5 times a year with each interruption occurring for more than 4 hours.

Supply disruption caused by natural disasters, adverse weather conditions and planned interruptions (for maintenance) is excluded. In the case of GSL 1 non-compliance, affected users can make a claim within two months in the following year.

Domestic consumer
1% of average monthly bill amount or minimum RM10.00, whichever is higher.

Commercial consumer
1% of average monthly bill amount, up to a maximum of RM300.

Industrial consumer
0.5% of average monthly bill amount, up to a maximum of RM1000.

2. Availability of Supply - Restoration Time

The time taken to restore supply:

  • Disturbance caused by minor damage: 3 hours
  • Breakdowns involving medium voltage system and have alternative supply sources: 4 hours
  • Breakdowns involving a low-voltage system and no alternative sources of supply: 12 hours

Supply disruption caused by natural disasters, adverse weather conditions and planned interruptions (for maintenance) is excluded. In the case of GSL 2 non-compliance, affected users can make a claim within two months after the incident occurred.

Domestic Consumer
1% of monthly bill amount or minimum RM10.00, whichever is higher.

Commercial Consumer
1% of monthly bill amount, up to a maximum of RM300.

Industrial Consumer
0.5% of monthly bill amount, up to a maximum of RM1000. (Monthly bill of the particular month when non - compliance occurs)

3. Providing Supply

The time taken to reconnect the service requires the installation of low-voltage cable after the premises to be given the supply is ready to receive the cable, and subject to the wayleave approval from the parties concerned.

  • 5 working days (overhead line)
  • 14 working days (underground cable)

In the case of GSL 3 non-compliance, affected users can claim the rebate within two months after the supply is connected.

RM50 applies only to individual low voltage domestic applications that requires no more than 3 poles (for overhead line) OR no more than 100m (for underground cable) nearest to the premises.

4. Providing Supply

Time taken to connect a new electricity supply for individual domestic low voltage consumers, after deposit is paid (date to be agreed jointly between the user and TNB and access is given).

  • For meter installation only.
  • 3 working days

In the case of GSL 4 non-compliance, affected users can claim the rebate within two months after the supply is connected.

RM50

5. Customer Contact

Electricity supply disconnection will be performed in accordance with applicable law and procedures in place. In the case of GSL 5 non-compliance (wrongful disconnection) , affected users can claim the rebate within 2 months after the date of non-compliance.

RM100

Guaranteed Service Level (GSL) Rebate claim

You can claim a rebate from us if you have faced any problems with our Guaranteed Service Level (GSL). To learn more about our GSL, Sign-in to myTNB website, then click on Help & Support.

 

Minimum Service Levels (MSL)

The minimum service levels as stipulated below set the minimum levels that TNB needs to adhere to in delivering its services to consumers. It serves as a measurement of the efficiency of the delivery services of TNB in carrying out its statutory duty to supply electricity under the Act.

Service Dimension Service Indicator Performance Level
Availability of Supply

1a. Minimum duration of notice for planned/scheduled interruption of electricity supply.

1b. Upon request, time taken to provide initial information to Consumer who report on electricity interruption.

2 days

1 hour

Quality of Supply

2a. Time taken to rectify voltage complaint or limit violation and to correct voltage complaint which requires network reinforcement.

2b. Time taken to complete investigation of over voltage from complaint receipt date.

2c. Time taken to provide a complete report of voltage sag from complaints received date.

180 days

30 working days

14 days

Providing Supply

3a. Time taken to inform the developer of the connection charges to be paid upon receipt of complete application.

  • For supply up to 22kV
  • For supply of 33kV

3b. Time taken to implement electrification scheme requiring new substations after connection charges paid, way leave obtained and successful taking over of substation building by TNB:

  • For supply up to 22kV
  • For supply of 33kV with cable installation not more than 5km.
    • For KL, Putrajaya area
    • For other areas

3c. Waiting time at site for appointment to connect electricity supply. (Unavoidable occurrence must be followed up by returning call in not less than 1 hour before the appointment time).

 

30 days
60 days

 

60 days


180days
120 days

1 hour

Customer Contact

4a. Time taken to reply to written enquiry or complaint.

4b. Queuing time at customer service counter.

4c. Time taken by customer service officer at CMC 15454 to pick up ringing telephone.

5 working days

15 minutes

90% calls answered within 30 seconds.

Metering Services

5a. Time taken to attend and respond to metering problem or dispute upon official notification/ request by the consumer (appointment, visit, testing, replace, relocate, etc).

5b. Time interval between successive rendering of bill(s).

5 working days

1 month