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From Power Supply to Project Development

Japan’s designation of GX Strategic Regions is beginning to move the geographic diversification of its data center industry toward implementation. The focus now shifts to what facilities will be developed, which companies will participate, and how power, connectivity, capital, and land will be brought together.

Tohoku Electric Power is emerging as a particularly relevant participant in this process. In Akita and Miyagi, both designated under the GX Strategic Regions program’s data center cluster category, the utility is involved as a joint applicant, extending its role beyond electricity supply.

At a September 24, 2026, press conference, Tohoku Electric Power President Kazuhiro Ishiyama described the designations in Akita Prefecture and Tomiya City, Miyagi Prefecture, as a tailwind for efforts to attract data centers to the six Tohoku prefectures and neighboring Niigata.

If the plans for both areas are realized, they are expected to generate approximately 2 GW of additional electricity demand in aggregate—a substantial opportunity for the utility’s power sales business.

With population decline and energy efficiency limiting growth in existing regional electricity demand, AI data centers offer utilities a potentially significant new source of large-scale consumption.

Developing gigawatt-scale data center clusters, however, requires coordinated planning across power infrastructure, telecommunications, land, operator recruitment, financing, and renewable energy.

Tohoku Electric Power’s initiatives suggest that utilities are beginning to assume a broader role: helping create new demand within their service territories and participating in the development of the projects that will generate it.

A Gigawatt-Scale Data Center Cluster Planned Around a Former Power Station

Akita City offers a clear example of this approach.

On September 11, the same day the GX Strategic Regions designations were announced, Tohoku Electric Power disclosed plans to offer the site of its former Akita Thermal Power Station as a potential location for data center development. The power station was retired in October 2024.

Akita City’s designated planning area, which includes the former power station site, envisions a data center cluster at the 1 GW scale.

Repurposing a former power station site has a practical rationale. Land previously used for power generation can be well suited to large electrical installations and may offer access to a substantial development footprint.

If supported by renewable energy and suitable telecommunications infrastructure, a former generation site could become a hub for digital industry. This provides a potential model for linking Japan’s GX objectives with digital infrastructure investment.

Bringing Power, Connectivity, and Finance Together

Tohoku Electric Power’s efforts to attract data centers predate the latest GX designations.

In October 2025, the utility entered into a business cooperation agreement with NTT East and the Development Bank of Japan (DBJ) to attract data center development to Tohoku and Niigata.

The combination of Tohoku Electric Power’s electricity capabilities, NTT East’s telecommunications infrastructure, and DBJ’s financial expertise provides a practical framework for translating Japan’s “watt-bit collaboration”—the coordinated development of power and digital infrastructure—into projects.

In February 2026, Tohoku Electric Power also signed a five-party cooperation agreement with Aomori Prefecture, NTT East, DBJ, and Shin-Mutsu-Ogawara to attract data centers to Aomori.

Aomori offers several attributes relevant to data center development, including the potential for decarbonized power supply, extensive land availability, and a cool climate.

Separately, discussions involving RUTILEA, Hitachi, and DBJ are examining next-generation AI data centers designed to meet GPU demand, including the potential formation of an entity to develop and operate the business.

Taken together, these initiatives point to an effort that extends beyond attracting individual facilities. They seek to connect local governments, telecommunications providers, financial institutions, and technology companies to establish regional digital infrastructure businesses.

An Expanding Role for Electric Utilities

As AI data center electricity requirements reach the gigawatt scale, the relationship between utilities and data center operators may evolve.

A development process in which an operator selects land and subsequently requests a power connection can make it difficult to deliver large AI facilities quickly.

Future projects may increasingly begin with an assessment of where power can be supplied and at what scale. Utilities, local governments, telecommunications providers, investors, and developers could then work together earlier to identify and prepare viable locations.

Tohoku Electric Power’s participation as a joint applicant in the Akita and Miyagi GX Strategic Regions illustrates this emerging approach.

By using regional power resources to attract new demand and connecting operators with local authorities, a utility can become an active participant in project origination and development. This could become one model for structuring future data center projects in Japan.

Execution After Designation Will Determine the Outcome

The GX Strategic Regions designations establish a clear policy direction for expanding data center development beyond Japan’s major metropolitan markets. Their ultimate significance will depend on execution.

Delivering gigawatt-scale clusters requires sustained investment in transmission and distribution networks, telecommunications, site preparation, renewable energy, construction, and financing.

As facilities grow larger, developers must also address their effects on surrounding communities. Waste heat, noise, traffic, visual impact, and water use will become increasingly important considerations.

Sound digital infrastructure investment requires landowners, data center operators, developers, investors, energy companies, telecommunications providers, national and local governments, and communities to coordinate their respective contributions so that projects can operate as sustainable businesses over the long term.

The initiatives taking shape in Tohoku, with Tohoku Electric Power playing a central role, could provide an early reference for regional data center development elsewhere in Japan.

For investors, the next stage will be defined by which participants come together in each region, how project entities are structured, and what investment follows. The more consequential developments will be the projects and businesses that move forward after designation.