DayOne Nusajaya · Iskandar Puteri, Johor, Malaysia

Last change recorded 2026-10-04 · Last checked 2026-10-04

Owner—

Users—

IT power, end of 2026473 MW

Planned end state473 MW

First power2024-12-31

Build-out completeno further build-out tracked

Power pathGrid supply

Binding stepNo data yet

First power vs announcedNo announced date on record

Full build-out vs announcedNo announced date on record

Utility / power partnersTenaga Nasional Berhad

Renewables / PPA

Latest: 390 MW in service across Johor (DayOne) · First power · 2026-01-30 · recorded 2026-10-04

DayOne's Nusajaya Tech Park campus in Johor, supplied by TNB with up to 500 MW of solar over 21 years shared with Kempas. DayOne reported 390 MW in service in Johor on 2026-01-30, mostly at Nusajaya; Epoch expects buildings 7-10 at full capacity by Q4 2026. · source ◐ secondary, confidence medium

Recorded readiness — 0 of 6 applicable milestones have a dated public record

○ Land○ Permits○ Grid supply· Generation○ Water○ Financing○ Construction

Gate to first power — target 2024-12-31 (estimate) · path: Grid supply · each step must finish its lead time before the target

0 of 0 required steps have a public date. Red = recorded date past the rule-based deadline · grey "no public date" = required step without a record · green = on record in time · context steps never colour.

No dated steps on record.

This site is energized; lights only show how its recorded steps compared with the lead times.

Lead-time assumptions

Site secured 15 months before first power — Land under control and campus announced. Rarely binding; shown for context.
Permits in hand 0 months before first power — Final air and siting permits. Operators often energize on standard or temporary authorisations and receive the major permit later; flagged only when the permit lands more than 6 months after first power or is missing for an on-site plant.
Grid supply agreed 9 months before first power — Interconnection or large-load agreement approved. Observed median 7 months before first power; the physical works (substation, lines) run in parallel with construction.
Substation and lines energized 2 months before first power — Utility delivery point live; final tests before the load is taken.
New generation online 1 months before first power — Utility plant or on-site plant generating; needed just before energization when the grid cannot carry the load alone.
Major equipment on site 6 months before first power — Turbines, transformers, switchgear delivered; installation and commissioning take the remaining months.
Construction started 24 months before first power — Groundbreaking of the building that gives first power. Observed 4-26 months for recent AI campuses; Meta's redesigned campuses took 35-58.
Building ready for IT 0 months before first power — First building ready for IT. 'Complete' or 'opened' is usually reported after first power; flagged only beyond 3 months.
Full build-out complete -12 months before first power — All announced buildings operational. Comes after first power by design; context only.
Water supply secured 12 months before first power — Water rights, municipal agreement or desalination contract in hand. Context only; one of the feasibility items.
Financing closed 12 months before first power — Project financing, anchor lease or committed capital announced. Context only; not applicable when the owner is a hyperscaler building on its balance sheet.

Dated steps (from the sources; later dates are plans)

2024-12-31 First powerFirst power (Epoch) · ◐

2026-01-30 First power390 MW in service across Johor (DayOne) · ◐

Build-out timeline (Epoch AI; dated status notes with IT power; rows after today are estimates)

2023-10-01—Construction for Building 1-2 is underway.

2024-12-3150 MWBuildings 1-2 are fully operational. Based on DayOne [reporting](https://web.archive.org/web/20241231165420/https://dayonedc.com/) that 120 MW is in operation in Johor, with [50 MW](https://www.moomoo.com/news/post/41886

2026-01-22240 MWBuildings 3-6 are operational, based on them looking complete. DayOne [reported](https://archive.is/8CFXN) that 390 MW is "in service" in Johor as of Jan 30. This is across both Nusajaya (including Phase 1, which we don'

2026-04-05240 MWBuildings 7-10 look mostly complete, but there is still some construction work at the edges.

2026-10-02473 MWBuildings 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.

Recorded fact The site is energized.

Calculated requirement Energized; watch the build-out timeline for the next buildings.

Sources (Epoch AI selection): News of Phase 2 operation · Archived DayOne website - "120 MW in operation" in Johor · Archived DayOne website - 390 MW "in service" in Johor · Financial Times report that Alibaba and ByteDance are training AI models in southeast Asia

Epoch AI, 'AI data centers', epoch.ai/data/ai-data-centers (CC BY 4.0); coordinates from GeoNames cities500 (CC BY 4.0) and hand-entered places; overrides in tools/project_overrides.csv with their own sources. Campuses outside the Epoch dataset come from tools/campuses.csv (public reporting, source per row). Data retrieved 2026-10-05. Report a correction to contact@ailoadmap.com (campus id dayone-nusajaya; include the row and a source link).