In a written reply to parliament on July 1, 2026, Deputy Prime Minister Datuk Seri Fadillah Yusof put a number on what Malaysia's data-center boom will cost the power grid: electricity consumption from data centers is projected to rise to 73,274 gigawatt-hours by 2035, close to a third of the country's entire electricity supply, up from just 7 percent today. Peninsular Malaysia's peak power demand is projected to grow at 5.1 percent a year through 2035, climbing from 21.3 gigawatts to 33.5 gigawatts. Malaysia currently hosts 34 operating data centers with 33 more in the pipeline, according to the country's Digital Investment Department — a build-out large enough that Putrajaya quietly froze approvals for anything that isn't AI-related roughly two years ago.
Prime Minister Anwar Ibrahim confirmed the freeze himself in parliament on February 24, 2026: "For the past one and a half years, almost two years ago, we have limited the entry of new data centres that are not related to AI... So all new applications that were not related... have already been stopped." AI-linked projects keep getting approved. Anwar said Malaysia has enough capacity for the next year or two but will need help beyond that, pointing to the planned ASEAN Power Grid interconnection and future hydro and solar supply from Sarawak on Borneo as the medium-term answer.
How Johor Inherited the Boom
Much of this capacity landed across the causeway from Singapore for a specific reason: Singapore froze new data-center approvals of its own from 2019 to 2022 over resource constraints, and international tech firms simply moved the projects into Johor instead. Malaysia now accounts for more than half of all data-center capacity under construction across five Southeast Asian countries, according to market-intelligence firm DC Byte. The tenants reading like a roll call of global cloud and AI infrastructure: Microsoft has committed $2.2 billion to expand into a Johor cloud region; Google is spending $2 billion on its first Malaysian data center, using water-cooling technology it says cuts energy use by about 10 percent versus air-cooled alternatives; ByteDance has earmarked roughly $2.1 billion for an AI hub including $320 million specifically for Johor facilities; Equinix, AirTrunk and Zdata are also active developers in the state.
"It's not the sufficiency, it's the management — how to make sure that water is channelled to the right place." — Lee Ting Han, Johor state executive councillor for investment and trade
Tenaga Nasional, the national utility, is not standing still. TNB has committed 43 billion ringgit, roughly $10.8 billion, to modernize the grid for data-center demand, and its "Green Lane Pathway" program has cut new grid-connection timelines from 36 months to 12, delivering 33 projects under the framework by March 2026. But the utility is also managing a supply cliff: about 6,400 megawatts of coal-fired generation is scheduled to retire between 2029 and 2031, meaning Malaysia needs roughly 12,000 megawatts of new capacity by 2031 just to stand still, before any of the data-center growth is added on top. Fadillah's July 1 parliamentary reply listed the stopgaps: extending the life of existing thermal plants, opening bidding for new gas-fired capacity, letting data centers buy renewable power directly from private developers, and pushing operators toward self-generation to reduce grid dependence.
Water is the tighter constraint on the ground in Johor. State officials told investors in November 2025 to postpone water-cooled expansion projects for at least 18 months, until roughly mid-2027, amid drought conditions. The state has classified the largest facilities — Tier 1 and Tier 2 data centers, which draw nearly 200 times more water than smaller operations — as high water users and halted new approvals for that category outright; a single such facility can consume up to 50 million litres of water a day, on the order of 20 Olympic swimming pools. The fragility isn't hypothetical: a sand-mining accident in early November 2025 forced the closure of four water-treatment plants and cut supply to more than half of Johor's 1.7 million residents for up to twelve hours, a preview of what strain looks like before data centers add meaningfully to demand. Up to 30 percent of data-center applications in Johor have reportedly been rejected on resource grounds, though that figure comes from a single industry analysis and hasn't been independently corroborated.
The friction has already reached the street. Residents of Gelang Patah, a town in Johor, protested outside a data-center construction site in February 2026 over fears there wouldn't be enough water left for them, according to reporting by The Diplomat. Sahabat Alam Malaysia, the local Friends of the Earth affiliate, has called data centers "big energy and water guzzlers" and pushed for public cost-benefit assessments before any further approvals proceed. None of this has slowed the announcements coming out of Kuala Lumpur. It has simply moved the real decision about how fast Malaysia's AI economy can grow from the investment ministry to the water utility.