Operational

DayOne Nusajaya

Unknown · Johor Bahru, Malaysia

DayOne Nusajaya is a operational data center project in Johor Bahru, Malaysia. This record brings together its location, estimated IT capacity, construction timeline, water-disclosure gaps and original sources.

Epoch AI · Checked 2026-09-15 · Owner confidence: 0

AI data center listed by Epoch AI.

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Estimated operating IT capacity

240 MW

Source observation: 2026-04-05

Site water use

Not yet verified

No site-level value published in this atlas

Local water stress

Not yet assessed

Regional context has not been added

How to interpret this record. Epoch reports the site as operational; individual buildings may still be under construction. Capacity is an estimate of IT power, not metered electricity consumption. Sources were collected by Epoch AI; inclusion is not independent verification by our team.

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Water-information request

Hello,

I am seeking publicly shareable information about water use at DayOne Nusajaya in Johor Bahru, Malaysia. Could you please share the following for this specific project?

1. The latest annual water withdrawal and water consumption, with units and reporting period. Please distinguish measured use from projections, and site totals from cooling-only figures.
2. Water sources (drinking water, reclaimed/industrial water, rainwater or seawater), cooling method, and any seasonal or peak-day demand figures.
3. How water demand is managed during drought or supply restrictions, and where treated water is discharged or reused.
4. Links to relevant water permits, environmental assessments and public monitoring reports, including the responsible authority.

If the project is still in development, projected figures and their assumptions would be helpful. If information is unavailable, please identify what is not disclosed and whether another team can help.

Thank you for helping make this information accessible.

Best regards,
[Your name]

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Project timeline

Source notes reproduced from Epoch AI. Future projections are excluded. Status may have changed since the latest observation.

2026-04-05
Buildings 7-10 look mostly complete, but there is still some construction work at the edges.
2026-01-22
Buildings 3-6 are operational, based on them looking complete. DayOne reported that 390 MW is "in service" in Johor as of Jan 30. This is across both Nusajaya (including Phase 1, which we don't include here) and Kempas, but Nusajaya is the vast majority of capacity at this time. Building 7 and 8 look almost complete, while Building 9 and 10 shells are still under construction.
2024-12-31
Buildings 1-2 are fully operational. Based on DayOne reporting that 120 MW is in operation in Johor, with 50 MW towards these two buildings. The date is based on the earliest available archived webpage, so this may have happened earlier.
2023-10-01
Construction for Building 1-2 is underway.

Location

Johor Bahru, Malaysia — street address not verified

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Sources & further reading

Dataset attribution: Epoch AI, CC BY.

Local context is still being researched

No independently reviewed permit summary or community report has been added here. This does not mean there are no permits, concerns or impacts.

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Frequently asked questions about DayOne Nusajaya

Where is DayOne Nusajaya?

DayOne Nusajaya is listed in Johor Bahru, Malaysia. A street address has not been verified for this record.

How much power does DayOne Nusajaya use?

The latest source-backed estimate in this atlas is 240 MW of operating IT capacity, observed for 2026-04-05. This is an estimate of computing capacity, not metered annual electricity consumption.

How much water does DayOne Nusajaya use?

No verified site-level water withdrawal or consumption figure has been added to this atlas. A missing figure means the value is not verified here, not that the project uses no water.