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Voltage in Singapore

Last Updated: 01 November 2021


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Power Quality in Singapore

Of all the major international cities, Singapore enjoys one of the most reliable electricity supplies. Average interruption times are less than 1 minute per customer a year.

However, like all electricity supply systems, there are occasional voltage dips.  While these fluctuations are not an issue for the average consumer, they can prove troublesome for the numerous high-tech businesses based in the city and the controls used in their production processes.

Power Sector in Singapore

The Island enjoys 100% access to electricity, with generation, transmission and electricity distribution being regulated by the Energy Market Authority.

Seven power plants generate the majority of the Island’s electricity.

As of the end of the first quarter of 2020, generation capacity stood at 12.6 Gigawatt (GW).  95% of which was generated from natural gas (primarily piped in from Indonesia and Malaysia), with the rest being derived from coal, oil, municipal waste, and solar.


Keppel Merlimau Cogen, one of seven power plants in Singapore, has the ability to transmit 1.3GW of electricity into Singapore’s power grid

The Island’s transmission and distribution system is unique in that it connects the power plants to the consumer through an underground network of 27,790 km of cables. As an underground network, the system is impervious to thunderstorms, lightning, fallen trees, wind, and other unfavourable weather conditions.

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While voltage fluctuations and dips are infrequent, they do occur. Consequently, they are of particular concern to the numerous high-tech businesses, particularly in the wafer fabrication, semiconductor, petrochemical and pharmaceutical industries which have made, in recent years, Singapore their home.

These voltage irregularities are primarily localised in nature and occur mainly due to damage to distribution cables during earthworks or equipment failures / switching on customer sites. However, where there is a failure of network elements, the effects are usually more widespread and have a greater impact.

Wishing to reduce by 2030 the nation’s carbon emissions by 36% from its 2005 levels,  the Singapore government has committed to reducing its reliance on fossil fuels and has pledged to invest in alternative cleaner and sustainable energy sources.

As the potential for wind and hydro-power is limited by environmental restrictions and a general lack of free land, Singapore, with many hours of sunshine, has put all its faith in the power of the sun. By 2030 the Island wishes to generate at least 2GW of solar energy – enough to power around 350,000 households.

Share your Views and Experiences

Every reasonable effort is made to ensure that the information provided above is accurate. No guarantees for the accuracy of the information is made. 

So we are able to keep the content updated, and actual on the ground experiences can be shared with others, please feel free to contact us.

To keep up to date on the latest News and Views on the state of global electricity supplies…

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All mains powered equipment requires a supply which is maintained within certain limits. Too low and the equipment will malfunction, too high and the equipment could be serious damaged. In many developed and developing economies, power demand is outstripping supply, giving rise to large voltage swings, surges and brownouts in the supply.

Whatever your national or international power supply requirements, Sinalda (UK) can ensure your equipment receives the power it needs to operate efficiently and without interruption. To learn more about Sinalda (UK) and  the power protection solutions we offer please check-out the links below:

Sinalda (UK) – The Informed Choice Voltage Stabilizers Power Line Conditioners