Southeast Asia Does Not Lack Electricity — It Lacks a Unified Power Market

By Kelly in Tokyo

Southeast Asia should be investing around US$29 billion a year in power-grid infrastructure. In reality, annual investment is only about US$11 billion, leaving a gap of roughly US$18 billion.

Behind that number lies a more concrete set of problems.

Between 2021 and 2025, 50% to 60% of renewable-energy projects in Vietnam, Thailand and Indonesia were cancelled or stalled. Data-center developers say waiting for grid connection can take longer than building the data center itself. And a cross-border electricity corridor that has been operating for years still carries too little power to support even one medium-to-large data center.

Earlier this year, Bain & Company and Standard Chartered jointly published a report on Southeast Asia’s electricity demand and grid bottlenecks.

The report estimates that by 2030, data centers, electric vehicles and green industrial clusters will create around 100 TWh of additional electricity demand, while lagging grid development could become a critical constraint.

One line captures the problem clearly: data centers, EV factories and green industrial parks can be built in one to three years, while the grids needed to serve them take at least five years.

The things that can be built quickly are waiting for the things that take much longer.

When we say Southeast Asia “does not lack electricity,” the point is that generation capacity itself is not necessarily the most immediate constraint.

The real bottleneck is whether electricity can be delivered to where it is needed, under agreed rules, on time and at an acceptable price.

The Cables Are There — So Why Can’t They Run at Full Capacity?

Southeast Asia has already experimented with cross-border electricity trading.

The Lao PDR–Thailand–Malaysia–Singapore Power Integration Project (LTMS-PIP) has been operating for several years. In January 2026, the four countries signed a second-phase agreement to increase cross-border power trading from 100 MW to as much as 200 MW.

Hydropower from Laos is transmitted through existing grids in Thailand and Malaysia before being sold to Singapore.

But how much is 200 MW?

According to the International Energy Agency, electricity demand from Southeast Asia’s data centers is expected to more than double by 2030.An AI server rack typically consumes around 40 to 200 kW, compared with only 5 to 15 kW for a traditional enterprise rack.

At that level, 200 MW is roughly enough to support only a few thousand AI racks — equivalent to perhaps one medium-to-large data center.

Yet Southeast Asia has far more than one data center under construction or in planning.The reason the cross-border capacity remains so limited is not mainly technological.The transmission lines already exist, and the four national grids are already interconnected.

The real problem is rules:

Whose electricity is being sold? Whose network does it pass through? At what price? And who is responsible when something goes wrong?

A large part of the second-phase agreement focuses on wheeling arrangements.

Electricity starts in Laos, passes through Thailand and Malaysia, and ends in Singapore. At every stage, regulators must agree on wheeling charges, transmission losses and responsibility allocation.

It took years to move a single corridor from a 100 MW pilot to 200 MW.The wider ASEAN power-grid vision faces the same problem.

ASEAN aims to achieve full regional grid integration by 2045, but only half of the 18 priority interconnection projects have been completed. The remaining projects are more difficult than those already finished.

The challenge is not simply infrastructure.It is the cost of coordination.

Projects Are Approved — So Why Do They Still Stall?

Another easily overlooked point in the Bain–Standard Chartered report is that grid investment in Southeast Asia fell by 3% between 2015 and 2025.Demand is rising, but investment has declined.

That shortage has flowed directly into project development.Large numbers of renewable-energy projects in Vietnam, Thailand and Indonesia have received approval but remain stuck at the grid-connection stage.

The report attributes the problem to “system constraints”: unclear power-purchase agreement structures, multiple permitting requirements and complex grid-connection rules.In practical terms, a power plant may be approved for construction, but basic questions remain unresolved before work begins:

Where will the electricity be delivered? At what price? And will the grid operator actually take it?Investors cannot wait indefinitely for answers.

This also explains the contrast at the beginning of the story.A data center may take only one or two years to build, yet it can spend far longer waiting for a grid connection.

That is because connecting to the grid is not simply a matter of installing a cable.It requires an entire set of rules that may still be under negotiation.

Southeast Asia does not lack sunshine. Nor does it lack investors willing to commit capital.

The report estimates that the region’s green economy could expand from US$290 billion to US$430 billion by 2030.But of the US$540 billion in announced green capital expenditure, only around US$315 billion has what the report considers a credible deployment pathway.

The remaining capital is not necessarily unwilling to invest.It is waiting for the grid to answer four basic questions:

Whose electricity is it? Whose network will carry it? At what price? And who bears responsibility when something goes wrong?

Until those questions are settled, even completed transmission lines cannot necessarily operate at full capacity.Technically, hydropower from Laos can already cross national borders and reach Singapore.

The electricity can cross the border.The rules still cannot.In One Sentence: Southeast Asia Does Not Lack Electricity — It Lacks “Unified Electricity”

The region’s power challenge is not simply about adding more generation.What Southeast Asia lacks is a more unified framework for moving electricity across borders and between projects — one that aligns pricing, grid access, responsibility and regulation.

Without that framework, new power plants, data centers and green industrial projects will continue to move at different speeds.The infrastructure may be connected.The market is not yet truly integrated.