Updated Jul. 6, 2026

DayOne Nusajaya

Johor Bahru, Johor, Malaysia

DayOne Nusajaya is an operational AI data center in Johor Bahru, Johor, Malaysia. It hosts an estimated 281k H100-equivalent chips, scaling toward a projected 586k H100-equivalent chips — supported by 240 MW of IT power, rising to 473 MW — at a capital cost of $9.1 B, rising to $17.9 B. We estimate that it uses Nvidia H100 and Nvidia B300 chips. The timeline of IT power and compute capacity is based on satellite imagery, our cooling equipment power model, company disclosures, chip availability, and chip efficiency. We exclude the three Phase 1 buildings at this campus, as Phase 2 was reported to be the first in the region to support large-scale AI computing.

STATUS Operational
Show compute as
Satellite view of DayOne Nusajaya

Satellite imagery

Latest: Mar. 25, 2026 · 2 high-res images
View satellite explorer →

Scale & specifications

CURRENT COMPUTE

281k H100-eq

5.57e20 8-bit OP/s

PROJECTED

586k H100-eq

1.16e21 8-bit OP/s

CURRENT IT POWER

240 MW

PROJECTED IT POWER

473 MW

CURRENT COST

$9.1 B

PROJECTED COST

$17.9 B

HardwareNvidia H100, Nvidia B300

CoolingAir-cooled chiller, Evaporative cooling tower

Buildout

Oct 1, 20230
Epoch AI|CC-BY
Oct 1, 2023
Satellite explorer

Construction for Building 1-2 is underway.

Dec 31, 2024
Satellite explorer

Buildings 1-2 are fully operational. Based on DayOne reporting that 120 MW is in operation in Johor, with 50 MW towards Buildings 4-5. The date is based on the earliest available archived webpage, so this may have happened earlier.

Compute
34kH100-eq
IT Power
50MW
Cost
$1.9B
Jan 22, 2026
Satellite explorer

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.

Compute
281kH100-eq
IT Power
240MW
Cost
$9.1B
Apr 5, 2026
Satellite explorer

Buildings 7-10 look mostly complete, but there is still some construction work at the edges.

Compute
281kH100-eq
IT Power
240MW
Cost
$9.1B
Oct 2, 2026
Projected
Satellite explorer

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.

Compute
586kH100-eq
IT Power
473MW
Cost
$17.9B

Sources

  1. News of Phase 2 operation
  2. Archived DayOne website - "120 MW in operation" in Johor
  3. Archived DayOne website - 390 MW "in service" in Johor
  4. Financial Times report that Alibaba and ByteDance are training AI models in southeast Asia

Read more about our methodology.