Undisclosed · Johor Bahru, Johor, Malaysia

DayOne Nusajaya

662MW

The power of 540,000 US homes.

Drawing power since Dec 2024.

H100-equivalents: 584K
Capital cost: $17.9B
Chips: H100, B300

Embed

This site on the globe

<iframe src="https://jesseahawkins.com/buildout/embed/dayone-nusajaya/" title="DayOne Nusajaya on a globe of the world's largest AI data centers" width="100%" height="480" style="border:0;max-width:100%" loading="lazy"></iframe>

Every site on the globe

<iframe src="https://jesseahawkins.com/buildout/embed/" title="The AI buildout: the world's largest AI data centers on a globe" width="100%" height="600" style="border:0;max-width:100%" loading="lazy"></iframe>

Each frame credits Epoch AI and links back to its page. Preview it.

Cite

This page

Jesse Hawkins, “DayOne Nusajaya · The AI buildout”, jesseahawkins.com, data retrieved 22 Oct 2026. https://jesseahawkins.com/buildout/dayone-nusajaya/. Data: Epoch AI, “AI data centers”, CC BY 4.0.

BibTeX

@misc{hawkins2026buildoutdayonenusajaya,
  author = {Hawkins, Jesse},
  title = {{DayOne Nusajaya · The AI buildout}},
  year = {2026},
  howpublished = {\url{https://jesseahawkins.com/buildout/dayone-nusajaya/}},
  note = {Data: Epoch AI, ``AI data centers'', CC BY 4.0, retrieved 2026-10-22}
}

The data · Epoch AI

Epoch AI, 'AI data centers'. Published online at epoch.ai. Retrieved from 'https://epoch.ai/data/ai-data-centers' [online resource]. CC BY 4.0.

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Power over time

facility power · 5 milestones

Every milestone

1 Oct 2023 — Construction for Building 1-2 is underway.
31 Dec 2024 70 MW 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.
22 Jan 2026 336 MW 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.
5 Apr 2026 336 MW Buildings 7-10 look mostly complete, but there is still some construction work at the edges.
2 Oct 2026 662 MW Buildings 7-10 are operational. Judging by their state in April 2026, we expect 3 months to finish construction and another 3 months to ramp to full capacity.

Every step Epoch planned here on 2 Sep 2026 is still on plan. Planned against reached

Coal made 43% of the power in Malaysia

share of generation · Jun 2025 to May 2026

Malaysia World

Gas 34% against 21% for World
Coal 43% against 33% for World
Other fossil 1% against 3% for World
Nuclear 0% against 9% for World
Wind 0% against 9% for World
Solar 2% against 10% for World
Hydro 17% against 14% for World
Bio & other 3% against 2% for World

Fossil 78% (+1 pt on a year earlier) · nuclear 0% · renewables 22% · 637 g CO2e per kWh, life cycle · Jun 2025 to May 2026. Generation for all of Malaysia, without imports; the data does not show which grid feeds the site. Every country behind an AI site.

Sources

selected by Epoch AI

Data: Epoch AI, “AI data centers”, CC BY 4.0, retrieved 22 Oct 2026. Facility power adds cooling and other overhead to the IT power the servers draw. Placed at the centre of Johor Bahru. Grid: Ember, “Monthly Electricity Data and Yearly Electricity Data”, CC BY 4.0, retrieved 11 Oct 2026; shares computed here. All sources.