How much electricity does an average HDB flat use?

Average electricity bill for an HDB flat: the kWh figures

The Energy Market Authority (EMA) publishes average monthly household electricity consumption by dwelling type in its Singapore Energy Statistics. On EMA's 2025 figures, a household in public housing used 352 kWh a month on average. Use rises from one flat type to the next, from 169 kWh in 1-room and 2-room flats to 452.6 kWh in 5-room and Executive flats.

On this page, a "bill" means the kWh: the units of electricity your home used that month. The dollar amount on a bill changes with the tariff, so it can move even when your usage stays the same. The kWh lets you compare like with like, across months and across homes.

Private apartments and condominiums averaged 505.3 kWh a month, and landed properties averaged 1,178.2 kWh. The figure for all households, 428.4 kWh, covers public and private housing together, so it is not the closest comparison for an HDB flat. Use the row for your own flat type instead.

What the averages mean

The figures in the table are EMA's own averages of monthly consumption over the year for each dwelling type. They are not HomezyPro figures. EMA's energy consumption statistics also break the averages down by planning area, so you can look up your area.

An average blends many homes of the same type into one number. Household size and appliances differ from home to home, so your own figure can sit above or below it for ordinary reasons. Treat the average electricity consumption for your flat type as a reference point, not a target to hit.

Take 4-room HDB electricity use as an example. EMA's 2025 figure in its Singapore Energy Statistics is 369.7 kWh, or about 370 kWh a month. If your 4-room flat uses around that amount, it sits close to the average for its type. If it uses far more month after month, it is worth finding out why.

Compare your own bill

SP Group says the regulated electricity tariff is revised every quarter to reflect the actual cost of electricity. The tariff has four cost components: energy costs, network costs, the market support services fee, and the market administration and power system operation fee. Check the current tariff on SP Group's tariff information page. Because the rate changes, the dollar amount alone does not tell you whether you used more electricity.

1. Find the kWh on your bill. Look for the electricity used that month in kWh, not the total amount due.
2. Compare it with your flat type. Match the figure against the row for your flat type in the table above.
3. Compare it with earlier months. Check your bills for previous months to see whether your usage has changed.

If your usage has gone up and you are not sure why, read our guide to a high electricity bill. To work with your own kWh figures, use the electricity cost calculator.

Why your home may use more or less

Household size and the appliances you run, including the aircon, affect your total kWh.

The National Environment Agency (NEA) runs the Energy Label, which covers air-conditioners, refrigerators, clothes dryers, televisions, water heaters and lamps. It rates efficiency in ticks, from 1 tick (Low) to 5 ticks (Excellent), and portable air-conditioners are rated only from 1 to 2 ticks. The label also shows the appliance's annual energy consumption in kWh, worked out under NEA's fixed assumptions. For an aircon, those are 8 hours of daily use plus 16 hours on standby, so your own use may differ. NEA strongly encourages consumers to look out for the label when buying household air-conditioners, refrigerators, clothes dryers, televisions or lamps, in shops or online.

To see what your own running hours could mean, try the aircon running cost calculator.

When to call an electrician

If your kWh stays far above the average for your flat type and you have not changed your habits, an electrician can check the installation and your appliances. Before you book, go through our home electrical safety checklist.

Electrical work at home should be carried out or supervised by a Licensed Electrical Worker (LEW). This covers installing, repairing or modifying wiring; adding, extending or replacing power points such as socket-outlets, switches or lighting points; and repairing or replacing consumer control units or circuit breakers. EMA says electrical work in an HDB flat needs a Licensed Electrician, the class of LEW approved for loads of up to 45kVA. Every LEW carries a licence card with a photograph, name, identity card number and licence number, and EMA's guide to engaging licensed workers says to verify the card before any electrical work starts.

The price depends on the job. See electrician costs before you book, or browse electrical companies in the directory.

Questions