Nationwide market intelligence
Japan's data center landscape, market by market
A facility-level reference and market brief for investors tracking Japan's data center build-out end to end — from the hyperscale core in Tokyo and Osaka to renewable-powered campuses in Hokkaido and connectivity hubs in Fukuoka and Naha.
288
Facilities tracked
36
Regional markets
9
Geographic regions
95
Operators
Why regional matters
Tokyo and Osaka are running out of power
Independent research firms put different numbers on the market, but they agree on the shape of the story: demand is concentrated, power is constrained, and the frontier is moving outward.
~85–90%
Share of Japan's data center computing power currently concentrated in Greater Tokyo and Greater Osaka
~37% → 50%+
Tokyo's own share of national computing power, current vs. projected by 2026
up to ~35%
Share secondary markets (Kanagawa, Kobe, Ishikari/Hokkaido, Kyushu) could reach by 2034
19 TWh → 57–66 TWh
Japan data center power demand, 2024 vs. 2034 projection
~60%
Share of Japan's total electricity demand growth expected to come from data centers
5–10 years
Reported wait time for a new grid power connection in inner Tokyo
6.6–7.7 GW
Projected data center peak power demand by 2034 (~4% of Japan's national total)
Total market size — three independent estimates
$9.93B (2024) → $13.35B (2030)
5.06% CAGR
— Introl
$23.4B (2024) → $33.4B (2030)
6.7% CAGR
— JLL
$12.76B (2025) → $38.92B (2031)
20.42% CAGR
— Arizton
Figures differ because each firm scopes and forecasts the market differently. See full citations and methodology →
Geography
Where the facilities are
Every tracked facility, color-coded by region. Click a marker for details, or open the full map to filter by region.
Geography
Facility count by region
Regions ordered north to south; each links to the markets and facilities within it.
Kanto
160 facilities
11 markets
Japan's overwhelming center of gravity: Tokyo itself is now the single largest market tracked here, alongside the Inzai (Chiba), Yokohama/Kawasaki (Kanagawa), Saitama, Tsukuba (Ibaraki), Oyama (Tochigi), and Maebashi (Gunma) satellite hubs that ring the capital — several of which exist precisely because central Tokyo's power grid is running out of room.
Kansai
68 facilities
3 markets
Osaka is directly represented here as Japan's second-largest concentration after Tokyo, with Kobe and Maizuru rounding out a corridor that JLL and other research firms flag as the country's fastest-growing hub outside the capital.
Chubu
18 facilities
5 markets
Includes Nagoya (Aichi), the Hokuriku facilities around Kanazawa, Nagano, and Niigata/Shizuoka — a manufacturing-heavy corridor with growing interconnection demand.
Hokkaido
10 facilities
3 markets
Cold climate and abundant wind/solar resources make Hokkaido a focal point for renewable-powered and free-air-cooled facilities, headlined by SoftBank's Tomakomai AI campus, with Iwamizawa adding further regional capacity.
Kyushu
8 facilities
3 markets
Fukuoka anchors this region as a connectivity gateway toward Korea and mainland Asia, with Kagoshima and Genkai (Saga) representing further reach across the island.
Chugoku
7 facilities
4 markets
Hiroshima, Okayama, Matsue, and Yamaguchi represent early-stage regional capacity on the San'yo/San'in coasts.
Shikoku
6 facilities
2 markets
Takamatsu is the island's principal cluster, with Matsuyama adding further coverage — both serving as redundancy/disaster-recovery locations relative to the Honshu mainland.
Okinawa
6 facilities
2 markets
Naha's position on subsea cable routes toward Taiwan and Southeast Asia gives Okinawa a distinct connectivity role despite its small facility count.
Tohoku
5 facilities
3 markets
A smaller footprint so far, with facilities in Sendai, Fukushima, and Aomori offering an alternative to Kanto's power-constrained core.
Notable projects
Flagship facilities
A handful of facilities in the dataset carry independently verified public detail worth calling out.
SoftBank Hokkaido Data Center
SoftBank
Groundbreaking facility under construction in Tomakomai, Hokkaido, spanning 700,000 sqm, designed to support AI development.
KCCS ZED Ishikari
Kyocera Communication Systems (KCCS)
Zero Emission Data Center on 15,000 sqm land, 5,300 sqm total floor area, 1,100 sqm server rooms, up to 400 racks, 2-3MW power receiving capacity.
Who's building
Top operators by facility count
A mix of domestic telcos, regional utilities, and international colocation platforms.
| 1 | KDDI Corporation | 25 facilities | 9 markets |
| 2 | NTT DATA, Inc. | 22 facilities | 7 markets |
| 3 | Equinix | 21 facilities | 2 markets |
| 4 | Digital Realty | 10 facilities | 3 markets |
| 5 | Digital Edge DC | 10 facilities | 3 markets |
| 6 | Colt Data Centre Services | 10 facilities | 2 markets |
| 7 | Ada Infrastructure | 8 facilities | 3 markets |
| 8 | SCSK Corporation | 7 facilities | 3 markets |
Coverage
Global Data Center News
Aggregated automatically from data center industry RSS feeds and refreshed roughly every hour. This feed isn't curated or fact-checked by this site — read at the source before relying on any figure. Items judged relevant to Japan are flagged.
Feed last refreshed Nov 13, 2026, 9:20 PM UTC · Aggregated from: DatacenterDynamics, Data Center Knowledge, Data Center News (APAC), DCNN Magazine, Uptime Institute Blog, Data Center Café (Japan)
Data Center Knowledge · Dec 1, 2026
Data Center Knowledge · Nov 17, 2026
A unified lifecycle framework for cooling, critical power, power generation and building management systems
DatacenterDynamics · Nov 13, 2026
Startups and hyperscalers alike are making the case for custom silicon
DatacenterDynamics · Nov 13, 2026
Company has already acquired FläktGroup
DatacenterDynamics · Nov 13, 2026
Facility to support high-density GPU workloads
DatacenterDynamics · Nov 13, 2026
Wafer-scale chip and AI cloud company now has three hyperscalers in its books
DatacenterDynamics · Nov 13, 2026
As company seeks to bolster data center infrastructure
DatacenterDynamics · Nov 13, 2026
Developments in Lane Cove, Cooks River, and Tungkillo
DatacenterDynamics · Nov 13, 2026
How AI optimization of data hall cooling and the chiller plant frees power for compute in power-constrained data centers
DatacenterDynamics · Nov 13, 2026
Joins from Qu Data Centres
DatacenterDynamics · Nov 13, 2026
Neocloud Neysa to lease capacity in the facility
DatacenterDynamics · Nov 13, 2026
Company looks to build in Tarneit
DatacenterDynamics · Nov 13, 2026
Latest prospectus also provides more details about agreements with Anthropic.
DatacenterDynamics · Nov 13, 2026
Australian data centre operator AirTrunk and renewable energy developer European Energy Australia have signed an exclusivity agreement to progress renewable energy and storage projects in the Hunter region of New South Wales, Australia, wit
DCNN Magazine · Nov 13, 2026
Labor shortages and rising costs are making data center schedules more fragile, especially in Southern markets where specialized crews are already stretched.
Data Center Knowledge · Nov 13, 2026
Cloud security involves more than firewalls, encryption, and threat detection; effective protection also depends on the people, processes, and policies behind the technology. ISO/IEC 27001 provides an internationally recognised framework fo
DCNN Magazine · Nov 13, 2026
Australia's data centre build-out is set to add 2.3GW by 2030, with Melbourne gaining ground as Sydney's pipeline slips on energy and approvals.
Data Center News (APAC) · Nov 13, 2026
Growing demand for AI cooling is drawing operators and cloud providers to Nidec, which used its Singapore debut to open partnership talks.
Data Center News (APAC) · Nov 12, 2026
The departure of Jensen Huang without a clear long-term successor could mean turmoil at the data center economy bellwether, analysts say.
Data Center Knowledge · Nov 12, 2026
As grid limits tighten, data centers may need to diversify power strategies to secure reliable capacity, control costs, and support faster growth.
Data Center Knowledge · Nov 12, 2026
A data centre is a secure, purpose-built facility that houses large numbers of computers (known as servers), along with the networking, power, and cooling equipment needed to keep them running around the clock. In short, it is where the int
DCNN Magazine · Nov 12, 2026
Armada, a US provider of modular edge data centres and connectivity for remote sites, and Johnson Controls, a global provider of smart building technologies, have begun production at Galleon Forge Two, a manufacturing facility in Dublin, Ir
DCNN Magazine · Nov 11, 2026
As pressure on power, land, and permitting intensifies, more data centers are moving to rural areas, making remote sites a growing part of future development.
Data Center Knowledge · Nov 11, 2026
The International Data Center Authority (IDCA), a US-based think tank and certification body for data centres and digital infrastructure, has launched its Community Assurance Program (CAP), an independent assessment and certification initia
DCNN Magazine · Nov 11, 2026
Contractors can win more data center bids by planning for the Investment Tax Credit early and helping owners capture more value.
Data Center Knowledge · Nov 10, 2026
3Flash Finland, a Finnish developer of industrial-scale solar, green hydrogen, and energy storage projects, is planning a 480MW data centre at Huuhansuo in Lappeenranta, Finland, alongside on-site solar power generation, battery storage, an
DCNN Magazine · Nov 10, 2026
Liverpool-based recycled plastics manufacturer Centriforce Products says it expects sales to exceed £30 million in 2026, up from £28 million in 2025, as investment in data centres, power networks, and renewable energy drives demand for infr
DCNN Magazine · Nov 10, 2026
NetApp, a US enterprise data storage and cloud data services company, has completed its acquisition of PEAK:AIO, a UK-based developer of metadata architecture and high-performance parallel file systems, to advance its storage capabilities f
DCNN Magazine · Nov 9, 2026
Data center-level AI “kill switches” are more feasible than agent-level ones, but they need early detection and global regulatory alignment to work.
Data Center Knowledge · Nov 9, 2026
SolidUltra, a new European developer of modular solid-state transformers (SSTs) for AI data centres, has secured €3 million (£2.5 million) in funding from founding partner Watt & Well, a French power electronics group. The funding was secur
DCNN Magazine · Nov 9, 2026
Lumai is testing optical AI servers in a UK lab to see whether shifting inference prefill off GPUs can ease data center power constraints.
Data Center Knowledge · Nov 6, 2026
Downing Renewable Developments (DRD), a UK developer of solar, battery storage, and onshore wind projects, has expanded into data centre development, establishing an initial pipeline of more than 500MW of advanced projects in Sweden and Fin
DCNN Magazine · Nov 6, 2026
Power shortages and local opposition are delaying data center projects, making AI expansion harder, costlier, and more dependent on scarce grid access.
Data Center Knowledge · Nov 6, 2026
AI data center demand is reviving nuclear energy, but whether SMRs, plant restarts, and fusion can deliver enough power quickly remains uncertain.
Data Center Knowledge · Nov 5, 2026
Crusoe's 3.5 MW Spark Liquid unit highlights how factory-built, modular data centers are becoming a faster path to AI capacity at scale.
Data Center Knowledge · Nov 4, 2026
Liquid cooling changes data center operations by making precise, real-time measurement across both liquid and air environments essential.
Data Center Knowledge · Nov 4, 2026
Trump’s onsite power push highlights a hard reality: most AI data centers will likely need hybrid energy strategies rather than fully off-grid designs.
Data Center Knowledge · Nov 3, 2026
Cloud infrastructure revenue reached $168 billion in the third quarter as providers brought higher-priced AI capacity online, reinforcing demand for new data centers even as power constraints slow delivery.
Data Center Knowledge · Nov 3, 2026
Although adoption of direct liquid cooling (DLC) has received an unexpected boost from dense AI computing, practices around how to design, build and operate DLC systems at scale are still maturing. In discussions between Uptime Institute an
Uptime Institute Blog · Oct 29, 2026
Data centers create relatively few permanent jobs, but they still rely on a small, skilled on-site workforce to keep facilities secure, powered, cooled, and running.
Data Center Knowledge · Oct 29, 2026
Solid-state micro-cooling could help data centers reduce hotspots in SSDs and other subsystems that liquid cooling and system fans don't fully reach.
Data Center Knowledge · Oct 28, 2026
The number of new AI data center projects being announced continues to far outpace the number delayed by local opposition.
Data Center Knowledge · Oct 27, 2026
Data center projects can bring major capital investment to smaller markets, but lasting economic returns depend on realistic job expectations and protection against public cost exposure.
Data Center Knowledge · Oct 26, 2026
Evaporative cooling is hard to defend on water-use grounds, but some operators still choose it for its lower upfront cost, higher efficiency, and dry-climate performance.
Data Center Knowledge · Oct 23, 2026
Nvidia says its DSX POD can slash AI data center deployment times, but its Berlin launch also underscored growing backlash over the industry’s rapid expansion.
Data Center Knowledge · Oct 22, 2026
Efficiency gains and flexible workloads may create near-term capacity for AI, but utilities will need proof that those reductions can be delivered when the grid needs them.
Data Center Knowledge · Oct 22, 2026
Nvidia said the DSX Pod, a prebuilt containerized AI data center, reduces deployment time from six months to 14 days.
Data Center Knowledge · Oct 21, 2026
PCE measures how much provisioned power is available for compute rather than support systems, helping operators free up capacity for AI demand without new grid power.
Data Center Knowledge · Oct 21, 2026
South Korean data center firm Elice’s IPO disappointment is the latest sign the AI boom may have peaked.
Data Center Knowledge · Oct 20, 2026
Front-of-the-meter power could help data centers ease grid strain, expand capacity, and address growing concerns over energy demand.
Data Center Knowledge · Oct 20, 2026
Data centers require skilled professionals. Collaboration between IT and facilities, along with proactive maintenance and remote monitoring, helps address workforce shortages.
Data Center Knowledge · Oct 16, 2026
As opposition to data center expansion grows, policymakers may eventually look beyond power and water consumption to ask whether the digital services those facilities support justify their environmental and infrastructure costs.
Data Center Knowledge · Oct 16, 2026
The proposed rules must still be approved by NERC’s board and federal regulators. As written, they would apply to computational loads of 50 MW or more connected at voltage levels of at least 100 kV.
Data Center Knowledge · Oct 15, 2026
JLL says strong AI demand is not enough to protect projects lacking power certainty, anchor tenants, and credible delivery timelines.
Data Center Knowledge · Oct 15, 2026
To most data center operators, the benefit of redundant power and cooling systems is self-evident. Additional systems provide a backup in case of failure. A data center with redundant equipment should experience less downtime, on average, t
Uptime Institute Blog · Oct 14, 2026
Brazil’s data center growth is spreading beyond São Paulo to Rio, Fortaleza, and the south, but power grid delays and lengthy permitting will decide which markets actually succeed.
Data Center Knowledge · Oct 14, 2026
US data center land spending hit roughly $6 billion in the first half of 2026, as power access now drives land value and pricing more than location alone.
Data Center Knowledge · Oct 14, 2026
AI is pushing data center cooling to its limits, so the real advantage comes from integrating smart sensing, motor control, and power management into a single responsive, failure-anticipating system.
Data Center Knowledge · Oct 14, 2026
Chiplets are reshaping CPU design, enabling data centers to do more without increasing space or power consumption.
Data Center Knowledge · Oct 13, 2026