Bill calculator: Tariffs for EV Charging

Use our bill calculator to check your bill amount and learn more about our rates.

Tip:

To check your tariff type or bill details, you can get a copy of your bill or find out how to read your bill.

Tariff rates

It applies to EV customers that use electricity for EV charging.

The tariffs for EV charging are based on monthly meter-readings. It includes the following items:

For the charge for electricity consumption of EV Tariff, the rate is 107.4 cents per unit. 

For the charge for electricity consumption of the EV Residential Time of Use Tariff, the details is shown as follows: 

Total Monthly Consumption Block
Energy Charge (Cents/Unit)

Off-peak Period

(Daily period between 11:00pm to 4:00pm the next day. Total 17 hours at a discounted rate)

91.3

On-peak Period

(Daily period from 4:00pm to 11:00pm)

134.3

The Fuel Cost Adjustment amount may increase or decrease your bill. It is based on the difference between forecasted fuel prices and actual fuel prices (oil, gas and coal). The Fuel Cost Adjustment is updated every month to reflect the latest fuel price changes. 

View the latest Fuel Cost Adjustment

This rebate decreases your bill. It only applies to bills with a total monthly consumption of 400 units or less. Refer to the table below for the rebate rates: 

Total monthly consumption range
Rebate rate (cents/unit)

1 to 200 units

17.2 cents per unit on total consumption

201 to 300 units

16.2 cents per unit on total consumption

301 to 400 units

15.2 cents per unit on total consumption

The minimum charge per bill is HK$40. 

You have to settle the minimum charge even there is no electricity consumption recorded on your account.

Note:

Tariffs and other conditions may be updated from time to time. Learn more about our latest tariff adjustment.

Rate table terms

Term
Refers to...

Unit

One kilowatt-hour (kWh) of electricity.

Monthly

The period of approximately 1 month between a meter-reading (including estimations) and the next meter-reading.

Pro-rated adjustments

If the period between two successive meter-readings is outside the 25 to 35 days range, your energy charge and energy saving rebate will be pro-rated.

Your adjustment will be made as follows:

Applicable block units = Normal block units x N / 30

N refers to the number of days between two successive meter-readings.

More information

Please refer to our Electricity Tariff Table for 2025 (PDF)

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