SUMMARY
Rising demand for data centres across Southeast Asia is putting more pressure on electricity systems, but an industry group says energy demand from the region’s telecommunications companies is unlikely to become a major risk. The distinction matters because much of the region’s data-centre expansion is being driven by cloud providers, artificial intelligence and large digital infrastructure projects rather than traditional telecom operators alone. At the same time, countries such as Malaysia are preparing for rapidly rising electricity consumption from data centres, making energy efficiency, grid capacity and access to cleaner power increasingly important.
But an industry group says the energy requirements coming specifically from telecommunications companies are not expected to represent a major risk.
The assessment comes as governments across the Association of Southeast Asian Nations, or ASEAN, try to balance the economic benefits of digital infrastructure with concerns about electricity supply, costs and environmental impact.
The distinction between telecom operators and the wider data-centre industry is important.
While telcos operate networks, towers and digital infrastructure, some of the largest new data-centre projects are being driven by cloud computing, artificial intelligence and hyperscale technology companies.
Why Data Centres Are Expanding Across Southeast Asia
Southeast Asia has become one of the world's fastest-growing markets for digital infrastructure.
Demand for cloud services, streaming, e-commerce, artificial intelligence and other digital applications is increasing the amount of computing capacity required in the region.
Singapore has long been a major data-centre hub, while Malaysia, Indonesia and other Southeast Asian markets are attracting increasingly large investments.
The expansion is being supported by the region's growing digital economy, large populations and strategic position between major Asian markets.
For technology companies, building data centres closer to users can reduce latency and improve the performance of digital services.
Telcos Are Not the Same as Hyperscale Data Centres
One reason the energy risk may be smaller for telecommunications companies is the nature of their infrastructure.
Telecom operators need data processing capacity to operate mobile networks, cloud services and other digital products, but their requirements are different from the enormous computing campuses increasingly being built for artificial intelligence and cloud workloads.
Hyperscale facilities can require huge amounts of electricity because they contain large numbers of servers operating continuously.
AI workloads can be particularly demanding because advanced processors consume substantial amounts of electricity and generate significant heat that must be removed through cooling systems.
This means that the largest increases in electricity demand may come from the wider digital infrastructure industry rather than from traditional telecom networks alone.
Malaysia Shows Why the Energy Question Matters
Malaysia provides one of the clearest examples of the challenge.
Data centres accounted for a record 9.3% of electricity consumption in Peninsular Malaysia during the second week of August, compared with an average of about 7% for the year, according to the country's Energy Commission.
Hot weather contributed to the increase because data-centre cooling systems require more electricity when temperatures rise.
Officials have warned that data centres could eventually account for as much as 31% of Peninsular Malaysia's electricity demand by 2035.
Malaysia is already one of Southeast Asia's most important data-centre destinations, attracting major investments from global technology companies.
AI Is Changing the Energy Equation
The rapid development of artificial intelligence is making the energy question more complicated.
Traditional cloud computing already requires large data centres, but AI systems can require substantially more computing power for training and operating advanced models.
As companies deploy AI agents, generative AI services and increasingly sophisticated models, demand for computing infrastructure could continue rising.
This is one reason Southeast Asian governments are paying closer attention to electricity availability before approving new data-centre projects.
The challenge is not simply producing enough electricity.
Countries also need reliable transmission networks capable of delivering that electricity to the locations where data centres are being built.
Power Grids Could Become the Real Bottleneck
Data centres can be constructed relatively quickly compared with major power infrastructure.
A new electricity generation project, transmission line or gas-fired power plant can require years of planning, financing and construction.
That creates a potential mismatch.
Technology companies may be ready to build new computing facilities before the surrounding electricity infrastructure is ready to support them.
This is particularly important in fast-growing markets where electricity demand is already rising because of industrialization, urbanization and economic growth.
More Data Centres Mean More Competition for Electricity
Even if telecom companies themselves are not creating a major energy risk, the broader data-centre boom still has consequences for electricity markets.
Data centres operate continuously and generally require highly reliable power.
That means utilities must plan for a large amount of relatively constant electricity demand.
In markets where supply is limited, rapid data-centre development could increase competition for available electricity.
It could also influence investment decisions about new generation capacity, transmission infrastructure and renewable energy.
Renewable Energy Is Becoming More Important
The growth of data centres is also increasing pressure on Southeast Asian countries to expand cleaner energy supplies.
Solar, wind, hydropower and other lower-carbon sources can help meet growing electricity demand while reducing reliance on fossil fuels.
However, renewable energy creates its own challenges.
Solar and wind generation can fluctuate depending on weather conditions, while data centres require reliable electricity around the clock.
Countries therefore need stronger grids, energy storage and backup generation to ensure that digital infrastructure remains operational.
Cooling Is Another Major Part of the Problem
Electricity used by servers is only part of a data centre's energy footprint.
Large facilities also need sophisticated cooling systems to prevent computer equipment from overheating.
Hotter weather can therefore increase electricity consumption even when the number of servers inside a facility remains unchanged.
Malaysia experienced this effect in August, when unusually hot conditions pushed data-centre electricity consumption higher.
The issue could become increasingly important as Southeast Asian countries experience higher temperatures and more frequent periods of extreme heat.
Singapore Faces Different Constraints
Singapore is one of the region's most established data-centre hubs, but its limited land and energy resources mean expansion has to be carefully managed.
The city-state has historically imposed restrictions on new data-centre development and has placed greater emphasis on efficiency and sustainability.
Its position as a financial and technology hub nevertheless continues to make it attractive to companies that need secure and highly connected digital infrastructure.
Singapore's experience demonstrates that data-centre growth is not simply a question of demand.
Governments also have to decide how much infrastructure a country can support without putting excessive pressure on energy, water and land resources.
Indonesia and Malaysia Could Capture More Growth
As Singapore's physical constraints become more important, neighbouring countries have an opportunity to capture some of the region's future data-centre investment.
Malaysia has emerged as one of the fastest-growing locations for new facilities, particularly around Kuala Lumpur and Johor.
Indonesia is also seeking to expand its digital infrastructure as cloud computing and online services grow.
But attracting investment is only the beginning.
Countries must ensure that new facilities do not overwhelm electricity networks or create infrastructure costs that ultimately fall on households and other businesses.
Why Telco Demand Still Matters
Although the industry group says telco-related demand is not a major risk, telecommunications companies remain an important part of the digital infrastructure ecosystem.
Mobile networks increasingly depend on cloud computing, edge computing and large-scale data processing.
As 5G networks expand and digital services become more sophisticated, telecom operators will continue requiring more computing capacity.
Their energy consumption therefore cannot simply be ignored.
However, compared with the potential electricity requirements of large AI and hyperscale facilities, telco demand may represent a smaller part of the overall increase.
The Economic Benefits Are Significant
There is a reason Southeast Asian governments continue to welcome data-centre investment despite the energy concerns.
Data centres bring billions of dollars in capital investment and can strengthen a country's position in the digital economy.
They can also support construction, engineering, telecommunications, cloud computing and other technology industries.
More importantly, data-centre infrastructure can help attract businesses that depend on reliable cloud and digital services.
That can create economic benefits well beyond the physical facility itself.
But Governments Must Avoid Building Without Planning
The biggest risk is not necessarily that data centres consume too much electricity individually.
The greater danger is that governments approve too many projects without coordinating their combined impact on the electricity system.
A single facility may be manageable.
Dozens of large facilities arriving within a few years can create a very different problem.
This is why long-term electricity planning is becoming an increasingly important part of data-centre policy.
ASEAN's Digital Growth Will Need More Energy
ASEAN itself has acknowledged that electricity demand from data centres is expected to rise sharply across the region.
The bloc's sustainable data-centre guidance emphasizes the need for stronger energy-efficiency measures and greater access to renewable energy as the industry expands.
This suggests that the debate is moving away from whether data centres should be built and toward how they should be powered.
That is likely to become one of the defining infrastructure questions for Southeast Asia over the next decade.
The Industry's Argument
The industry's argument is that data-centre energy demand should be viewed in the context of the broader digital economy.
Digital services create economic value, and data centres provide the infrastructure required to operate them.
If countries want to become major technology hubs, they will inevitably need more computing infrastructure.
The challenge is making sure that infrastructure is efficient, reliable and powered in a way that does not create unacceptable costs for the wider economy.
What Happens Next
Southeast Asia's data-centre expansion is unlikely to stop.
Demand for cloud services and artificial intelligence is still growing, while governments see digital infrastructure as an important source of investment and economic development.
The more immediate question is whether electricity infrastructure can expand at the same pace.
Malaysia's experience is already showing that data centres can become a significant share of national electricity demand. At the same time, experts say the country's current grid can still accommodate the predictable increase, provided infrastructure planning keeps pace.
Conclusion
The warning that data-centre energy demand from ASEAN telecom operators is not a “big risk” does not mean Southeast Asia can ignore the electricity challenge.
It means the region needs to distinguish between different types of digital infrastructure.
Traditional telecom networks are only one part of the equation. The much larger question is how rapidly cloud computing, artificial intelligence and hyperscale data centres will expand.
For Southeast Asia, the opportunity is enormous.
But so is the infrastructure challenge.
The region's data-centre boom can support economic growth and strengthen its position in the global digital economy — provided governments build enough power, transmission capacity and clean-energy infrastructure to keep the servers running without putting excessive pressure on everyone else.
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