Batam, an Indonesian island approximately 45 kilometers from Singapore, is rapidly expanding as Southeast Asia’s leading data center destination outside Jakarta, with investment in nine facilities within Nongsa Digital Park reaching 38 trillion rupiah (US$2.2 billion) as of April 2025, according to local media reports. However, the expansion faces critical constraints from freshwater scarcity and energy infrastructure challenges, as documented in the Batam Free Zone Authority’s (BP Batam) 2025–2029 strategic plan, which projects clean water deficits by 2030 without mitigation measures.
Batam’s Emergence as Southeast Asia’s Data Center Hub
Batam has displaced other Indonesian regions to capture the second-largest share of the country’s data center market. While Jakarta maintains a 56.72% market share as of 2025, Batam holds approximately 10% and is expected to expand at a compound annual growth rate of 21.7% through 2031, according to Mordor Intelligence. Indonesia’s total operational data center capacity stands at 330 megawatts, with an additional 825 megawatts planned, per the 2025 e-Conomy SEA report published jointly by Google and Bain & Company.
Within Nongsa Digital Park alone, four data centers are currently operational, three are under construction, and five remain in the planning stage. Across the broader island, Batam hosts 18 data center facilities in various stages of development. Singapore-based DayOne completed a 72-megawatt facility in Nongsa Digital Park last year, while state-owned Telkom is developing NeutraDC Nxera, a hyperscale-ready facility with an initial capacity of 18 megawatts, expandable in phases to 54 megawatts.
Strategic Advantages: Proximity, Connectivity, and Cost Efficiency
Batam’s position as a data center destination stems partly from Singapore’s data center moratorium, which restricted new constructions in the city-state from 2019 to 2022 and redirected capital to nearby regions. Even after lifting the moratorium, Singapore has maintained selective approval criteria, prioritizing only sustainable projects. This regulatory environment has made Batam an attractive alternative for regional infrastructure investment.
Alexander Kheder, a telecommunications, media, and technology (TMT) analyst at Fitch Solutions’ BMI research division, characterizes Batam as positioned to capture “spillover demand” from Singapore due to its proximity—only 45 minutes by ferry—making it “an ideal extension for regional digital infrastructure.” Kheder compares this dynamic to data centers in Mexico positioned along the US border, which serve Texas markets with low-latency connectivity to major US hubs. The arrangement allows operators to provide low-latency access to Singapore, one of the most attractive regional markets globally, according to Kheder’s analysis.
Batam also benefits from its position along major subsea cable routes, with more than 15 cables either operational or planned. Marco Bardelli, chief business officer at Nongsa Digital Park, reported that a new submarine cable connecting Singapore and Nongsa is expected to become operational by the second or third quarter of 2025.
Operating costs in Batam remain significantly lower than in competing markets. Electricity tariffs in Batam range from US$0.053 to US$0.04 per kilowatt-hour, compared to US$0.135 per kilowatt-hour in Johor, Malaysia, according to Gidion Suranta Barus, chief cloud officer at Lintasarta, an Indonesian ICT solutions provider. For water, Johor charges 5.33 Malaysian ringgit (US$1.34) per cubic meter, while Batam’s rate for large industrial users stands at approximately 10,500 Indonesian rupiah (US$0.61) per cubic meter as of 2023, though no data-center-specific tariff has been established.
Nongsa Digital Park reflects the scale of infrastructure investment driving Batam’s emergence as a regional data center hub.
Water Scarcity: The Most Critical Long-Term Constraint
Despite rapid growth, Batam faces a fundamental infrastructure challenge: freshwater availability. Large-scale data centers consume up to 5 million gallons of water per day—equivalent to the daily water usage of a town with a population of 10,000 to 50,000 people, according to the Environmental and Energy Study Institute. Batam’s population reached 1.29 million in 2024, according to official data, and the island relies heavily on rainfall for freshwater supply, with limited natural reserves.
Alexander Kheder of Fitch Solutions’ BMI stated that “water is arguably the single most serious long-term constraint,” noting that “its existing population already experiences water scarcity and rationing.” Water shortages were reported in approximately 18 locations across Batam as of February 2026, raising concerns that rapid data center development could exacerbate existing supply deficits.
Batam’s clean water production capacity currently stands at 3,487 liters per second, supplied by six reservoirs across the island. According to BP Batam’s 2025–2029 strategic plan, clean water demand across Batam and neighboring islands Rempang and Galang is projected to face a deficit by 2030 without mitigation measures. The government agency has prioritized the development of alternative raw water sources, including seawater desalination plants, and the construction of new reservoirs.
BP Batam commenced desalination exploration in March 2025. Desalination facility construction is estimated to require approximately 3 trillion rupiah (US$175 million) in investment and is expected to produce about 2,600 liters per second of clean water. BW Digital, which is developing a 144-megawatt data center in Batam, is addressing water concerns by adopting direct liquid cooling technology. Ludovic Hutier, BW Digital’s chief executive officer, stated that this approach “improves efficiency and reduces overall resource consumption” and that the company is “evaluating water recycling and conservation strategies to minimize environmental impact.”
Johan Batubara, director of investments at Indonesia Investment Authority (INA), a sovereign wealth fund that has invested in DayOne’s Batam facilities, noted that Batam’s water issues predate data center development and can potentially be addressed through cooling system design innovations.
Sei Nongsa Reservoir: BP Batam’s 2025–2029 strategic plan identifies freshwater supply as a critical constraint on further data center expansion.
Energy Infrastructure and ESG Commitments
Energy supply presents a secondary but significant challenge. Batam’s power supply is managed by PLN Batam, a dedicated entity separate from mainland Indonesia’s national grid. While this arrangement provides operational flexibility, it also prevents the island from easily drawing on the broader national grid during supply shortfalls, according to Kheder’s analysis at Fitch Solutions’ BMI.
To date, Batam’s power supply has largely met demand. However, much of Indonesia’s energy mix remains fossil fuel-based, and on Batam, electricity is predominantly generated from gas-fired power plants. This energy profile presents a challenge for hyperscalers and major investors with strict environmental, social, and governance (ESG) commitments.
Kheder noted that “there is strong pressure from investors to demonstrate credible renewable energy pathways,” citing that Microsoft, Google, Amazon, and Meta all maintain net-zero emissions targets. BW Digital’s Hutier stated that the company is exploring sustainable power solutions, including rooftop solar panels and advanced energy management systems, to address these investor requirements.
In Batam, solar projects have been proposed in and around the island, but large-scale implementation has not yet materialized. Marco Bardelli of Nongsa Digital Park emphasized that green energy will be a key factor in attracting more international industrial investments to the island and creating employment opportunities.
BW Digital’s NDP1 facility, currently under construction, is scheduled to reach 144-megawatt operational capacity by mid-2026, incorporating direct liquid cooling and renewable energy exploration.
Hyperscaler Demand and Market Dynamics
Oracleremains the only hyperscaler with a committed presence in Batam, raising questions about whether infrastructure supply is outpacing demand. However, Ludovic Hutier of BW Digital noted that most hyperscalers have initially concentrated their Indonesia operations in Jakarta, and that the “build by anticipation” pattern—where operators construct capacity ahead of confirmed demand—is common in emerging data center markets, including Johor during its early development phases.
Hutier stated that operators in Batam are “essentially building into a supply constraint next door, not into a vacuum,” referring to Singapore’s capacity limitations. However, Marco Bardelli of Nongsa Digital Park argued that hyperscalers represent only one component of a broader ecosystem, noting that “cloud providers, colocation players, and independent AI factories” also drive demand.
Alexander Kheder of Fitch Solutions’ BMI concurred, observing that Indonesia’s data center market is already supported by a mix of telecom operators, private equity-backed platforms, and enterprise demand. Kheder also noted that local players account for only approximately 10% of the country’s live data center capacity, highlighting the growing role of international companies.
For Batam to emerge as a data center hub comparable to or exceeding Johor—which already hosts several hyperscalers including Oracle, Microsoft, and ByteDance—attracting additional hyperscalers may be necessary. Hutier emphasized that “the question of who brings the chips is real and underappreciated,” explaining that graphics processing units (GPUs) do not automatically flow to locations with available physical infrastructure but rather to markets with established demand, relationships, and supply chain access. Hutier added that “GPU-as-a-service operators from various countries are showing increasing interest in Batam.”
Gidion Suranta Barus of Lintasarta noted that a shortage of large-scale data centers exists across Indonesia, including in Batam. Most data centers that have already been built are fully occupied, even those announced recently, driving operators to compete for Batam development opportunities.
Johan Batubara of Indonesia Investment Authority observed that interest in Batam is increasingly oriented toward artificial intelligence-ready data center development. Batubara suggested that this focus partly reflects the nature of cloud businesses, which typically require greater human interaction, making locations closer to Singapore—such as Batam and Johor—more attractive for regional operations.
Telkom’s NeutraDC Nxera groundbreaking ceremony reflects state-owned operator participation in Batam’s data center expansion.
Bintan Emerging as a Secondary Market
As Batam gains prominence, the neighboring island of Bintan is also attracting data center investment. DCI Indonesia and Gallant Venture, a subsidiary of the Salim Group, are jointly developing a gigawatt-scale data center complex spanning 700 hectares on Bintan—currently the only major data center project on the island. Meanwhile, Batam itself remains far from full capacity despite Nongsa Digital Park’s crowded conditions; development is expanding into other areas, including the Kabil Integrated Industrial Estate, where Telkom’s NeutraDC facility is being constructed.
Alexander Kheder of Fitch Solutions’ BMI stated that Bintan “definitely has potential,” but emphasized that such development “has to come with more ambitious renewable energy plans.”
Lintasarta’s network operations center represents the technical infrastructure supporting Indonesia’s growing data center ecosystem.
Frequently Asked Questions
Q: What is driving Batam’s emergence as a major data center destination in Southeast Asia?
Batam’s growth is driven by Singapore’s data center moratorium (2019–2022), which redirected investment to nearby regions, combined with strategic advantages including proximity to Singapore (45 minutes by ferry), position along major subsea cable routes, and significantly lower operating costs than competing markets like Johor. Investment in nine Nongsa Digital Park facilities reached 38 trillion rupiah (US$2.2 billion) as of April 2025, according to local media reports, and Batam holds approximately 10% of Indonesia’s data center market share with an expected compound annual growth rate of 21.7% through 2031, per Mordor Intelligence.
Q: What are the primary constraints on Batam’s data center expansion?
Water scarcity represents the most critical long-term constraint, according to Alexander Kheder of Fitch Solutions’ BMI. Batam’s clean water production capacity stands at 3,487 liters per second, and BP Batam’s 2025–2029 strategic plan projects a clean water deficit by 2030 without mitigation measures. Water shortages were reported in approximately 18 locations across Batam as of February 2026. Energy infrastructure presents a secondary challenge; Batam’s power supply relies predominantly on gas-fired generation, creating pressure from hyperscalers and investors to demonstrate renewable energy pathways, as Microsoft, Google, Amazon, and Meta all maintain net-zero emissions targets.
Q: How does Batam’s cost structure compare to competing markets like Johor?
Batam offers significantly lower operating costs than Johor, Malaysia. Electricity tariffs in Batam range from US$0.053 to US$0.04 per kilowatt-hour, compared to US$0.135 per kilowatt-hour in Johor, according to Gidion Suranta Barus, chief cloud officer at Lintasarta. Water tariffs in Johor are 5.33 Malaysian ringgit (US$1.34) per cubic meter, while Batam’s rate for large industrial users stands at approximately 10,500 Indonesian rupiah (US$0.61) per cubic meter as of 2023, though no data-center-specific tariff has been formally established.
