When a crowd of about 300 Batam residents stormed the compound of the new Nongsa Digital Park, shouting “Water! Water!” they made a stark statement: the island’s push to become a digital hub is colliding with a basic human need. The protest, captured by the BBC, underscores a growing tension between high‑tech development and the fragile water infrastructure of Indonesia’s largest Riau Islands city.

Why water is at the centre of the dispute

Batam’s 1.3 million inhabitants rely on rainwater harvested in six artificial reservoirs. A recent dry spell, intensified by a historic “super” El Niño, has already lowered reservoir levels, and the Nongsa reservoir that serves the village of Bakau Serip is projected to dry up within weeks if rainfall does not return. Residents like Dewi Susanti report that their taps have been dry for three months, forcing families to purchase water from tanker trucks that deliver “dirty, cloudy and smelly” water.

At the same time, the island is courting data‑centre investors. BP Batam, the agency overseeing trade and industry, has approved ten data centres—six of which will sit in Nongsa Digital Park. Two are operational, a third is under construction, and at least six more are under review. Official estimates place total investment in these facilities at more than $6.7 billion (£5.1 billion) as of mid‑2026.

Data centres and water consumption

While the exact water draw of Batam’s data centres is not disclosed, the BBC article notes that water is essential for cooling servers and preventing overheating. Research from the United States suggests a typical data centre consumes around 300,000 gallons of water per day—roughly the amount used by 1,000 households. A larger 50 MW facility could require water equivalent to 2,200 households daily, alongside electricity enough to power 22,000 homes, according to Malaysia’s central bank.

These figures illustrate why locals fear competition for a dwindling resource. The lack of transparent data on Indonesian data‑centre water use, highlighted by Norwegian‑based professor Agus Hasan, fuels suspicion that corporate needs may be privileged over community supply.

Official response and mitigation measures

Batam’s water utility acknowledged the shortage and said it is exploring measures such as cloud seeding, but it did not link the problem directly to data‑centre demand. BP Batam blamed the scarcity on the prolonged dry spell and denied that water meant for homes is being diverted to the data centres.

Following earlier protests in August and September, authorities instructed data‑centre developers to build their own desalination plants rather than rely on existing reservoirs. This policy aims to decouple commercial water use from the public supply, yet residents remain skeptical, arguing that the sheer scale of the projects will still strain the island’s overall water balance.

Broader context and future outlook

Batam’s situation mirrors a global backlash against data‑centre expansion. Communities in the United States, United Kingdom, and other parts of Asia have voiced concerns about noise, light pollution, and the environmental footprint of large‑scale computing facilities. The island’s proximity to Singapore—just an hour away by ferry—makes it an attractive location for investors seeking lower operating costs and access to major subsea cable routes.

Projections suggest that by 2030 power demand from Batam’s data centres could exceed 1,100 MW, enough to energise nearly a million homes. If water consumption follows a similar trajectory, the pressure on the island’s reservoirs could become unsustainable without robust mitigation strategies.

What residents are demanding

Local voices, such as Marlinda from the district of Sei Beduk, call for a more balanced approach. They urge authorities to “come down here and see for yourselves what we are wrestling with,” emphasizing that the community’s immediate need is a reliable water supply, not abstract economic growth.

Until such measures are implemented, the clash between high‑tech ambition and basic human necessity is likely to persist, turning Batam’s water crisis into a litmus test for sustainable digital‑infrastructure development worldwide.