A sudden power outage in Singapore needs two decisions: is anyone in danger, and does the blackout affect only your home or the surrounding area? If several units or buildings have lost electricity, call the SP Group Electricity Service Centre at 1800 778 8888 or check official SP Group and Energy Market Authority (EMA) announcements. If only your flat is affected, the problem may be inside the home, involving the electrical distribution board, an appliance or a local supply arrangement.
Do not open live electrical panels, touch exposed wires or repeatedly force a circuit breaker to stay on. If there is smoke, sparking, a burning smell or water around electrical equipment, keep clear and seek appropriate emergency or licensed electrical assistance. During an outage, EMA advises using battery-operated lights rather than candles, keeping refrigerator doors closed and switching off appliances that might be harmed by power returning.
The aim of this guide is to move from a frightening blackout to an orderly diagnosis without claiming that every loss of power is a national electricity failure. The correct first action depends on the size of the outage and the condition of your electrical installation.
Quick answer: seven things to do during a blackout
- **Check immediate safety.** Stay away from exposed wiring, unstable fittings, fire and wet electrical equipment. In a life-threatening emergency call the appropriate emergency service, including 995 for fire or urgent ambulance help.
- **Use a torch or battery-powered lamp.** EMA advises against candles because they create a fire risk.
- **Check whether neighbouring flats and common corridors have power**, without going into unsafe areas.
- **If the wider area is affected,** call SP Group’s 24-hour Electricity Service Centre at **1800 778 8888** and check official updates.
- **If only your home is affected,** observe the status of the circuit breakers safely. Do not dismantle the distribution board or perform live electrical tests.
- **Switch off sensitive appliances** where safely accessible and leave refrigerator and freezer doors closed to preserve cooling.
- **Record the time, location, symptoms and service case number.** If the problem recurs, engage a Licensed Electrical Worker (LEW) where appropriate.
The official emergency preparation source is EMA: Staying Prepared for a Power Outage. SP Group publishes its 24-hour interruption hotline separately.
Step 1 — Decide whether the outage is inside or outside your home
Look through a window, if safe, to see whether the block’s corridor lights, neighbouring units or nearby buildings have power. Ask a neighbour whether their supply is normal. Do not assume a dark building is entirely without electricity merely because the lights in a few rooms are off.
If electricity is absent across several homes or blocks, the problem may be on the distribution network or common building infrastructure. It should be reported to the relevant operator rather than investigated by opening your private distribution board.
If the corridor has lights and a neighbour’s power is working, the problem may be local. It could involve a tripped circuit, defective appliance, wiring issue or a supply problem affecting your unit. This observation narrows the next steps; it does not establish a technical diagnosis.
Step 2 — Understand your home’s electrical distribution board
A residential distribution board typically houses circuit breakers and a residual current circuit breaker (RCCB), sometimes referred to as an earth leakage circuit breaker (ELCB). These devices help protect circuits by disconnecting power under specified conditions.
A breaker that has tripped is a symptom, not a guarantee that resetting it will solve the cause. It may have operated because of an electrical fault, leakage or a problem involving equipment connected to that circuit.
EMA’s RCCB safety guidance explains the function of the test control and when an LEW should inspect the installation. A routine protective test is different from troubleshooting a blackout caused by an unknown fault.
If a breaker repeatedly trips, stays down, feels hot or is associated with a burning smell, stop trying to restore supply. Arrange qualified help.
Step 3 — Do not confuse one faulty appliance with a whole-house outage
A washing machine, air-conditioner, water heater or another damaged appliance can be involved in a circuit trip. If it is safe to unplug an obvious suspect and the issue is limited, that may help a qualified technician identify the source.
Do not handle a wet plug or socket, force a power point, or remove an appliance cover to inspect hidden wiring. A person with no electrical training should not attempt to trace a live circuit with improvised tools.
EMA’s 2026 home electrical safety feature advises engaging an LEW when trips recur or the cause remains unclear. This advice is more valuable than experimenting until the breaker stays on.
Step 4 — Call the right organisation
Widespread electrical supply interruption
The SP Group Electricity Service Centre is a 24-hour hotline at 1800 778 8888. Use it to report a suspected supply interruption, provide the affected location and ask for verified updates. EMA also points residents to official SP Group and EMA social channels for confirmed restoration announcements.
Electrical installation inside your flat
A licensed electrical worker may be required to inspect or repair faulty wiring, protective devices or circuits inside the home. Do not assume SP Group is responsible for every damaged switch, socket or private appliance.
Common area or building electrical problem
A Town Council manages relevant HDB common property, while a condominium management corporation or managing agent is generally responsible for its common areas. An outage affecting a corridor, lift or shared system may require that building operator to arrange assistance.
Immediate danger
Use 995 for fire or life-threatening medical emergencies, and 999 for urgent Police assistance. EMA expressly reminds households not to use national emergency numbers for a routine power outage when nobody is in immediate danger.
Step 5 — What if someone is trapped in a lift during a blackout?
A trapped person should use the lift’s alarm or emergency intercom and contact the displayed lift emergency number, usually associated with the Essential Maintenance Service Unit (EMSU) in HDB estates. Do not pry doors open or try to leave a lift that has stopped between floors.
People outside should inform the lift operator and emergency services if there is a serious injury or urgent medical need. Electricity returning does not necessarily mean a stalled lift can be operated safely without assessment.
Read the separate HDB Lift Breakdown and Being Trapped Guide for the detailed rescue and reporting sequence.
Step 6 — Protect food, medicine and essential devices
Keep refrigerator and freezer doors closed as much as possible while the power is out. This helps preserve their internal temperature. Avoid opening a refrigerator repeatedly merely to check whether the light comes on.
If someone depends on an electrically powered medical device, treat the backup power plan and medical guidance as a priority. Follow the device manufacturer’s and healthcare team’s emergency instructions, and contact emergency services if loss of power creates an immediate threat to life.
A charged power bank can help maintain phone communication. In a prolonged outage, use the phone mainly for essential calls, texts and official updates as EMA recommends.
Do not run a fuel-powered generator or combustion appliance inside a flat or enclosed area. Such equipment can introduce dangerous fire and carbon-monoxide risks in addition to the electrical problem.
Step 7 — Be cautious when power returns
When supply is restored, check that appliances are operating normally and there is no obvious burning smell, sparking or water-related hazard. Bring equipment back into use in an orderly way rather than switching on every heavy appliance immediately.
If the distribution board trips again as soon as equipment is used, there may be a persistent internal fault. Arrange an LEW inspection. Do not repeatedly override protective devices.
If any refrigerated food has become inadequately chilled after an extended outage, assess it using credible food-safety guidance; do not assume all food remains safe because the electricity is back.
The difference between a power outage and a high electricity bill
A blackout is about whether electricity can reach the premises. A billing dispute concerns measured energy consumption, the price charged and any adjustments. They are different issues.
If electricity was interrupted but your next bill looks high, compare billed kilowatt-hours, tariff and estimates rather than assuming the outage itself caused a higher charge. A significant service issue and a meter-reading problem might need different evidence.
For a structured billing check, see Electricity Bill Too High? Check SP Meter Readings and Tariffs.
Should you reset the main breaker yourself?
There is no one safe instruction suitable for every damaged or unfamiliar electrical installation. A circuit breaker designed for normal user operation can sometimes be restored after a known, resolved condition, but repeated trips or uncertain faults warrant an LEW.
Do not open internal panel covers, bypass an RCCB, tape a tripped switch in place or insert objects into electrical contacts. Protective disconnection is designed to reduce risk.
EMA’s routine monthly RCCB testing guidance is not a licence to perform experimental repairs during a blackout. Follow the specific installed equipment instructions and seek qualified help when there is doubt.
How to prepare before the next outage
EMA recommends keeping an easily accessible Ready Bag with a battery torch, batteries or suitable portable power source, and a battery-operated radio. Check these occasionally so you do not discover they are flat or missing during a real outage.
Keep the SP Group Electricity Service Centre number, building management contact and lift emergency number somewhere other than a single phone. If a household member uses essential powered medical equipment, arrange an appropriate backup and response plan in consultation with their healthcare provider.
For businesses or home offices, consider a suitable uninterruptible power supply for essential electronics, but use only properly specified equipment and follow electrical safety rules. Battery backups do not make a home circuit fault safe to ignore.
Worked example: one HDB flat goes dark
Imagine fictional resident Mei loses electricity while the corridor lights and neighbouring units remain on. She safely checks whether there is an obvious appliance or supply issue, but notices that a breaker repeatedly trips when restored.
Rather than forcing it back on again, she stops using the affected circuit and contacts an LEW. The technician investigates whether an appliance or wiring fault caused the protective device to operate.
Mei’s observation of the corridor power did not prove the cause, but it helped distinguish a likely local problem from a neighbourhood-wide outage.
Worked example: several blocks lose power
Fictional resident Daniel sees that his flat and adjacent blocks are dark. He uses a torch, switches off suitable appliances and calls SP Group’s official interruption hotline to report the area and ask about confirmed updates.
He does not repeatedly reset his router or hire a private electrician to repair a presumed public network outage. He keeps his phone charged using a power bank and checks official announcements.
The useful result is directing the problem to the organisation with control over the affected supply system.
Worked example: a power cut affects a lift and medical appointment
Fictional resident Aisha is due to take an older relative for treatment when the block experiences a blackout and the lift stops operating. She contacts the building’s EMSU or managing organisation and explains the access need.
If the relative faces a medical emergency, Aisha contacts emergency services rather than attempting to carry them unsafely down many flights of stairs. The lift’s safety and the medical need must be handled by suitable responders.
The lesson is that loss of electricity sometimes creates a second, more urgent problem.
Mistakes that can make a blackout dangerous
- Using candles near curtains or children when a battery light is available.
- Touching wet plugs or panels during a power fault.
- Repeatedly resetting a breaker that will not stay on.
- Opening a live distribution board without appropriate training.
- Hiring an unqualified person to bypass protective devices.
- Forcing open lift doors during a building blackout.
- Believing an unverified social-media restoration time.
- Calling national emergency services for a routine supply interruption without danger.
- Forgetting about essential medical equipment, cooling or vulnerable household members.
Frequently asked questions
What number do I call for a power outage in Singapore?
SP Group’s 24-hour Electricity Service Centre is 1800 778 8888, according to EMA and SP Group.
What if only my HDB flat has no electricity?
Check safely whether neighbouring homes and corridors have power. If the problem is within the home or the breaker repeatedly trips, obtain qualified electrical assistance.
Can a breaker trip because of a faulty appliance?
Yes. An appliance or circuit fault can cause protective devices to disconnect power, but diagnosis should be made safely and properly.
Should I use a candle during a blackout?
EMA recommends battery-operated torchlights rather than candles because of fire risk.
Can I open a lift door if the lift stops during the outage?
No. Use the lift alarm and emergency communication system, and wait for trained rescue personnel.
How do I check whether power restoration is underway?
Use official SP Group and EMA updates or contact the Electricity Service Centre. Avoid sharing unverified restoration times as fact.
Will every blackout automatically reduce my electricity bill?
No automatic bill credit is guaranteed by the mere occurrence of an outage. Billing and any service-remedy questions depend on actual records and applicable terms.
When should I call 995?
For fire or life-threatening medical emergencies and other situations requiring urgent SCDF assistance, not simply to report a routine household power outage.
Official Singapore sources
- EMA — Staying Prepared and What to Do During a Power Outage
- EMA — Power Outage Advice for Households
- SP Group — 24-Hour Electricity Interruption Hotline
- EMA — RCCB and Electrical Safety
- EMA — 2026 Home Electrical Safety Advice
Related Singapore problem-solving guides
- Internet down, Wi-Fi failure and broadband outages
- HDB lift breakdown and rescue procedures
- Electricity bills and disputed meter readings
- No water supply, low water pressure and PUB help
Editorial review: 5 November 2026. This general public guide does not replace SP Group’s live outage information, your building operator’s instructions or qualified electrical and emergency response.