What uses the most electricity in a Singapore home?

Air-conditioning is typically the largest single consumer, followed by water heaters, the fridge (which runs constantly) and the washer/dryer. Small changes to aircon habits usually have the biggest impact.

What temperature should I set my aircon to save money?

Around 25°C is a good balance of comfort and cost. Every degree lower increases consumption, so pairing 25°C with a fan is far cheaper than running the aircon colder.

Do energy-efficient appliances really save money?

Yes — over the years you own them, higher tick-rated appliances use noticeably less electricity, which usually outweighs a higher purchase price, especially for things that run constantly like the fridge and aircon.

Can I save by switching electricity retailer?

Possibly. The Open Electricity Market lets you buy from a retailer other than SP, and comparing fixed and discount-off-tariff plans can lower your rate — just check the contract length.

How to Cut Your Electricity Bill in Singapore (2026)

Electricity is one of the few household costs you can shrink without sacrificing much comfort — it’s mostly a matter of knowing where the power goes and adjusting a few habits and choices. In Singapore’s climate, one appliance dominates the bill, and a handful of changes around it deliver most of the savings. Here’s how to bring your electricity bill down without living in the dark.

Know where your power goes

You can’t cut what you don’t understand. In most Singapore homes the biggest electricity consumers, in rough order, are: air-conditioning, the water heater, the fridge (which runs 24/7), and the washer and dryer. Lighting and gadgets are usually small by comparison. Because aircon so often dominates, the fastest route to a lower bill runs straight through how you cool your home.

Tame the air-conditioning

Aircon is where the biggest savings live, and you don’t have to swelter to get them:

Set it to around 25°C. Every degree colder increases consumption noticeably; 25°C with a fan feels as cool as a colder setting alone, for far less power.
Run a fan alongside it. Moving air lets you feel comfortable at a higher thermostat setting.
Use the timer. Cooling the room then switching to a fan overnight, rather than running the aircon till morning, saves a lot.
Close doors and curtains. Don’t cool space you’re not using, and keep the sun out during the day.
Service it regularly. A clean unit cools efficiently; a clogged one works harder for less. See our aircon servicing guide.

Buy efficient appliances

Appliances carry an energy label with a tick rating — more ticks means more efficient. For anything that runs constantly or draws a lot of power, the efficiency difference compounds into real money over the years you own it. This matters most for the fridge (always on) and the aircon (heavy draw). When you’re buying, a higher tick rating usually pays back its price premium in lower bills; our aircon buying guide explains the current efficiency rules, and it’s worth weighing efficiency when choosing a washing machine too.

The water heater and other quiet costs

Instant and storage water heaters can be a surprising chunk of the bill. Switch storage heaters on only when needed rather than leaving them on all day, and prefer showers over baths. Elsewhere, the classic small savings add up: switch off appliances at the wall rather than leaving them on standby, use LED lighting, run the washing machine on full loads and cooler cycles, and air-dry laundry instead of using the dryer whenever you can.

Compare Open Electricity Market retailers

Under the Open Electricity Market, you can buy your electricity from a retailer other than SP, potentially at a lower rate — SP still delivers the power and handles faults. Plans generally come in two flavours: a fixed price per kWh for the contract term, or a discount off the regulated tariff. Compare the rate, the contract length and any early-termination fee, and pick the structure that suits how confident you are about future tariffs. Our utilities setup guide covers how to switch.

Shift usage to off-peak where you can

Some plans and meters reward using power at off-peak times. If yours does, running heavy loads like the washing machine or dishwasher late at night or off-peak can lower the cost of that usage. Even without a time-of-use plan, spreading heavy usage sensibly avoids straining everything at once.

Put it together

You don’t need to do everything — focus on the big lever first. Dial the aircon to 25°C with a fan, service your units, choose efficient appliances when you replace them, and compare retailers once a year. Those four moves capture most of the available savings, and none of them mean a colder shower or a hotter bedroom than you’d actually want. Track your bill over a couple of months and you’ll see the difference.

Understand your bill first

Before changing anything, read a couple of recent bills and note your monthly consumption in kilowatt-hours (kWh). This is the number you’re trying to lower, and tracking it month to month tells you whether your changes are working. Many retailers and apps break usage down so you can see the effect of, say, running the aircon more in a hot month. Once you can see your consumption, the impact of setting the aircon to 25°C or air-drying laundry stops being abstract — you watch the kWh fall.

A simple monthly action plan

You don’t need to overhaul your life. A realistic plan looks like this: daily, run the aircon at 25°C with a fan and switch things off at the wall; weekly, run full laundry loads on cooler cycles and air-dry where you can; every few months, service the aircon so it runs efficiently; once a year, compare Open Electricity Market retailers and switch if there’s a better rate, and consider efficiency when replacing any major appliance. Those few habits, layered together, typically shave a meaningful chunk off the bill without any real sacrifice in comfort. Track your kWh for two or three months and adjust the habits that move the needle most in your home.

Small habits, compounding savings

None of these changes is dramatic on its own — a degree warmer on the aircon, a fan instead of colder cooling, laundry air-dried, standby power switched off. But they compound. Layered together across a month, they add up to a noticeably smaller bill, and because they’re habits rather than one-off purchases, the savings keep coming every month with no further effort. Start with the aircon, since it’s the biggest lever, then add the others as they become routine. Watch your kWh over a few months and lean into whatever moves the needle most in your particular home.

Where to start today

If you do just one thing this week, tackle the aircon: set it to around 25°C, switch on a fan, and use the timer so it isn’t running cold all night. That single change usually moves your bill more than everything else combined, because cooling is the biggest draw in a Singapore home. Once that’s a habit, layer in the easy wins — air-drying laundry, switching appliances off at the wall, and running full, cooler wash loads. Then, at your next renewal, spend ten minutes comparing electricity retailers. Small, stacked habits beat one grand gesture, and they keep saving month after month with no ongoing effort.