In general, TNB electricity tariff classification is based on consumer business activity at the said premise and its supply voltage level.  In the event there is changes in activity at the said premise which requires change in consumer tariff category,  the following actions may be taken;

1. Consumer may apply for change of tariff to TNB
2. TNB deserves the right to change consumer's tariff based on actual activity at the said premise
   
   For example, the default tariff for properties or premises such as serviced apartments, SOHO, SOVO and SOFO is Tariff B - Low Voltage Commercial Tariff as these premises are normally built on gazetted commercial lands. However if these premises are used for private dwelling purposes, the owner of these premises may apply for a change of tariff  from Tariff B to Tariff A - Domestic with TNB. Application can be done online via myTNB Portal or at the nearest Kedai Tenaga.

Summary of TNB tariff classification  as follows;

1. Customer category (business activity)

• Domestic
• Commercial
• Industrial
• Mining
• Street lighting
• Specific Agriculture

2. Supply voltage

*Voltage level for tariff classification

3. Usage profile (i.e. operation hours – 24 hours or not)

(Monday to Sunday)

Peak       : 0800-2200
Off-Peak : 2200-0800
 

You May also download:

• Rates (Effective 1 January 2014)
• Rates (1 June 2011)
• Rates (1 March 2009)
• Tariff Book. Kindly refer Rates (Effective 1 January 2014) for the current Tariff Schedule.

You May also download:

• Rates (Effective 1 January 2014)
• Rates (1 June 2011)
• Rates (1 March 2009)
• Tariff Book. Kindly refer Rates (Effective 1 January 2014) for the current Tariff Schedule.

“Co-generator”means a generator who that uses a single primary energy source to sequentially generate two different forms of useful energy for its own use at an efficiency rate of more than 70%. Services offered to co-generators are:

Top-up supply: The additional supply required by a Co-generator who that does not produce sufficient electricity for its own use.

Standby supply: The supply that TNB provides to a Co-generator in the event that the Co-generator does not generate electricity due to plant failure or planned shutdown for maintenance.

Notes:

1. This new Standby rate (as of 1 January 2014) is applicable to the following customers:
   • All new co-generation customers;
   • Existing co-generation customers who wish to migrate to this new Standby rate
2. For existing co-generation customers who wish to maintain the previous Standby (Firm & Non-Firm) rates, the previous Standby (Firm & Non-Firm) rates together with the new Top-Up rate (as of 1 January 2014) will be applicable
3. 1.6% as Feed-in-Tariff (FiT) for RE Fund will be imposed on consumers’ monthly bill (excluding Domestic consumers with monthly consumption of 300kWh and below) effective 1st January 2014
4. * Standby charges for high voltage CoGen customers effective 1 January 2020.