TNB Peak Hours Malaysia: Full ToU Schedule & Rates (2026)

TNB Peak & Off-Peak Hours Schedule

This means more than half the week (all weekends + 16 hours of every weekday) is actually the cheaper off-peak period.

Why Did TNB Introduce ToU?

The ToU scheme isn’t just a way for TNB to charge different rates – it’s part of a demand-side management strategy. When more users shift part of their usage to off-peak hours, it helps:

• Reduce pressure on the grid during the country’s highest demand period (evening-early night)
• Avoid the need to build additional generation capacity just to cover a few peak hours a day
• Give a financial incentive to consumers willing to shift their usage pattern

This is the same model used in many developed countries – time-based rates to balance grid load, not just to boost TNB revenue.

TNB Peak Hours & What Is The ToU (Time-of-Use) Tariff?

ToU is an optional (voluntary) tariff scheme from TNB that lets users pay different rates based on time of use – cheaper off-peak, more expensive at peak – compared to the standard tariff, which charges the same rate all day. This scheme is now open to all registered TNB users, including those without a smart meter yet.

TNB Peak Hours Tariff Rates (ToU) 2026

Important: The ToU rates above are the Energy Charge only – it replaces the standard Energy Charge (27.03 sen/kWh for <=1,500 kWh, 37.03 sen/kWh for >1,500 kWh). The other components of your bill (Capacity Charge + Network Charge, approx. 17.40 sen/kWh) stay the same whether or not you register for ToU. So the real difference between ToU and the standard tariff is only a few sen per kWh – not as large as it looks when comparing the ToU rate directly against the all-in rate of 44.43/54.43 sen/kWh.

How To Register For ToU

ToU registration is not automatic – you need to apply separately:

• Visit a nearby Kedai Tenaga TNB
• Email TNB (support@tnb.com.my)
• MyTNB app

You’ll need a copy of the registrant’s IC (or company registration for a business account) and a completed application form. There’s an RM10 stamp duty charge per application. Processing time is around 5 working days if you already have a smart meter, or up to 2 months if you don’t.

TNB Peak Hours: ToU vs Standard Tariff – Which Saves More?

It depends entirely on your usage pattern:

• ToU is worth it if the majority of your electricity usage happens at night/morning/weekends – for example a household empty during work hours (2pm-10pm), or a factory running a night shift.
• ToU is not worth it if you use a lot of electricity during the afternoon-early evening (2-10pm) – for example a household with work-from-home occupants, or a busy retail/restaurant business in the afternoon.

The most accurate way to know is to calculate based on your own actual usage pattern – use the calculator below.

To put this in concrete numbers, here is an illustrative example based on 900 kWh/month usage (same baseline used in our TNB Tariff guide), comparing two usage patterns:

Illustrative example only – Energy Charge component before AFA/EEI adjustments. Actual savings depend entirely on your real usage pattern; use the calculator below with your own bill for an accurate figure.

TNB Tariff & ToU Calculator

Solar + ToU – The Best Combination?

Solar ATAP panels generate the most power around 10am – 4pm (peak sunlight hours). This overlaps with the first 2 hours of TNB’s peak period (2-4pm). For homes/businesses that register for ToU and install solar:

• Solar covers most of your midday-early afternoon usage (including part of the most expensive peak hours)
• Electricity still imported for the rest of the time (mainly at night) is charged the cheaper off-peak rate
• This combination can deliver bigger savings than solar alone or ToU alone

Want to know how much solar could save on your bill? Try our Solar ATAP Savings Calculator. To understand the full TNB tariff structure (not just ToU), read our Complete TNB Tariff Malaysia Guide.

Practical Tip: When’s The Best Time To Use Heavy Appliances?

If you’ve registered for ToU, try shifting “heavy” appliance use (washing machine, dryer, EV charger, oven) to off-peak hours to maximise savings:

• Best: After 10pm or before 2pm (weekdays), or anytime on weekends
• Avoid: 2pm – 10pm on weekdays – this is when rates are highest

TNB ToU for Businesses: Maximum Demand & Battery Storage Savings

For commercial and industrial accounts on Medium or High Voltage (Tariff C1/C2, E1-E3), ToU works differently from domestic – it does not just change the energy charge (kWh), it also changes how the Maximum Demand (MD) charge is billed:

This is the single biggest ToU opportunity for factories and large commercial buildings: MD is only charged if your highest demand peak falls within the 2pm-10pm window. If you can shift heavy machinery, chillers, or production runs to off-peak hours – or install solar with battery storage to discharge stored energy during peak hours (a technique called “peak shaving”) – you can avoid the MD charge entirely for that period, which for a medium/high voltage account is often the single largest line item on the bill.

For a full breakdown of how MD is calculated and reduced, read our factory electricity cost reduction guide or see the complete Commercial & Industrial tariff table.

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Frequently Asked Questions

Note: ToU rates are effective 1 July 2025 under the RP4 structure. Please check myTNB or Kedai Tenaga for the latest rates and terms before applying.