Power outages today

Around 1.6 million households, plus every business and industrial site in Singapore, are connected to a single electricity grid operated by SP Group. The map above shows live power outages reported across the island, with the estimated time of restoration for each incident.

Whether a fault is caused by cable damage, an equipment failure or a planned maintenance window, this page consolidates the live map, the wider context on Singapore's power network and the contacts to report a power cut or an HDB power trip at home.

SP Group, the single operator behind Singapore's electricity grid

Singapore has a single national distribution network, operated by SP Group through its subsidiary SP PowerGrid. The same grid serves every customer regardless of the retailer chosen under the Open Electricity Market, from Geneco and Keppel Electric to Senoko Energy, Tuas Power, Sembcorp Power or PacificLight.

The grid covers the full territory of Singapore through more than 12,000 km of cables, almost entirely underground, which makes faults less weather-dependent than in most other markets. Electricity is generated at 95 % from natural gas, with the rest coming from solar PV, biomass and small imports from Laos via the LTMS-PIP pilot.

Planned outages, unplanned faults and HDB power trips

Power outages in Singapore fall into three distinct categories, and each has a different contact to call:

• Planned outages: scheduled in advance by SP Group for cable works, substation maintenance or new connections. Affected customers receive a written notice several days before.
• Unplanned outages: cable damage from construction works, equipment failure inside a substation, or third-party incidents such as the Hougang coffee shop fire of 2024 which knocked out part of the local grid.
• HDB power trips: not a network outage. The grid is still live, only the unit is cut, because the circuit breaker (MCB) inside the flat has detected an overload or a short circuit.

The HDB power trip is by far the most common form of power loss in Singapore. Typical causes are an overloaded line (kettle, air-fryer and air-con on the same circuit) or a short circuit triggered by a faulty appliance. The reset sequence is the same in most flats: unplug heavy appliances, locate the distribution board near the entrance, switch the tripped MCB back up. If the same MCB trips again immediately, stop and call a licensed electrician (LEW).

Major blackouts in Singapore: 1983, 2004 and the Sembawang and Hougang incidents

Large-scale blackouts in Singapore are rare, but a handful of events have shaped the country's emergency response:

• 5 February 1983: the largest Singapore blackout ever recorded, plunging most of the island into darkness for several hours after a transmission failure.
• 29 June 2004: a disruption in the natural gas supply from Indonesia caused a wide blackout affecting around 300,000 customers.
• 18 September 2018: a substation fault triggered the Sembawang power outage, leaving roughly 147,000 households without power in Sembawang, Woodlands, Yishun and Ang Mo Kio for up to an hour.
• October 2021: the Equinix SG3 datacenter outage disrupted banking and SaaS services for several hours after a power-related cooling failure.
• 2024: the Hougang power outage following a coffee shop fire along Hougang Avenue 7, with five people taken to hospital and several ATMs going offline.

Each of these events triggered a formal review by the Energy Market Authority (EMA) and concrete grid upgrades in the months that followed.

When a power cut also takes down internet, mobile and TV in Singapore

A power outage in Singapore rarely stops at the lights. Fibre boxes, Wi-Fi routers and TV decoders all go dead the moment the wall socket is cut. Mobile cell sites have a battery backup measured in two to four hours, so a prolonged outage can knock out 4G and 5G coverage across a whole neighbourhood even when the wider Singtel, StarHub, M1 or Simba network is otherwise intact.

This cascade explains why most reported "no Wi-Fi" incidents during a blackout are not actually broadband faults: the fibre line is intact, the router is simply unpowered. To tell the two apart in real time and check whether your operator is genuinely down, see our live map of internet outages in Singapore, which monitors fixed broadband, mobile and TV incidents across Singtel, StarHub, M1 and Simba.

Frequently asked questions about power outages in Singapore

How do I check a power outage in Singapore today?

Use the live map at the top of this page to see incidents reported by postal code, town and street, with the estimated time of restoration when available. The map is updated every minute from user reports across the island.

Is power outage common in Singapore?

No. Singapore has one of the most reliable electricity grids in the world, with the average customer experiencing less than one minute of unplanned outage per year. Most "power loss" reports are actually HDB power trips, not real network outages.

When was the last major blackout in Singapore?

The most recent large-scale event with multi-estate impact was the 2018 Sembawang blackout, which affected around 147,000 households for up to an hour. Smaller localized events such as the 2024 Hougang power outage still occur every few months.

Who do I call for a power outage in Singapore?

Call SP Group on 1800 778 8888, available 24/7. For an HDB power trip, the issue is downstream of the meter and SP Group will not intervene: reset the MCB or call a licensed electrician.

Why does my power keep tripping in my HDB flat?

A repeated trip almost always points to one of three causes: a single circuit overloaded by high-wattage appliances, a faulty appliance with an internal short circuit, or damaged wiring. If the same MCB trips again immediately after a reset, stop and call a licensed electrician.