The city of Satsumasendai in Kagoshima Prefecture has unveiled a comprehensive regional development blueprint tied to a planned large-scale AI data center, marking one of Japan's most ambitious efforts to co-locate digital infrastructure with industrial land development and water utility expansion. The plan, formally titled the Satsumasendai GX Strategic Region Basic Development Concept, was compiled and publicly disclosed on October 8, positioning the area as a nationally recognized hub for data center concentration under Japan's GX (Green Transformation) strategy.
The initiative centers on a planned AI data center to be developed by Kaishin Digital Infrastructure on approximately 25 hectares of land at Circular Park Kyushu, a site located behind Sendai Port on the former grounds of the Sendai Thermal Power Plant. The city's blueprint calls for integrated land development aimed at attracting related industries to the surrounding area, and in September the site received official designation as a national GX Strategic Region (Data Center Concentration Type).
Under the basic concept, the broader area is designated as the Satsumasendai GX Strategic Region, with zoning maps identifying priority industries for each sub-area, land-use plans, and future development visions. The city estimates that site preparation for the provisional Tobihama Industrial Park will cost approximately ¥12 billion, while industrial water infrastructure development is projected at roughly ¥7 billion. The water works budget breaks down into approximately ¥4 billion for a new 2.5-kilometer extension and about ¥3 billion for renewal and upgrades to existing facilities. The city has indicated that the entity responsible for placing construction orders and the project schedule will be determined based on the results of an ongoing market feasibility study.
The Tobihama Industrial Park, which would require the lifting of protective forest designation, is currently the subject of a market survey designed to clarify demand for the land. The survey focuses on two core questions: whether companies intend to enter a site that is already graded and equipped with industrial water infrastructure, and whether firms are interested in participating in land development, water utility construction, land subdivision, or other operational businesses. If sufficient private-sector interest is confirmed, the city may leverage private vitality for the project; if not, the city plans to have the municipal land development corporation handle site preparation and the city government directly manage the industrial water utility.
Aligned with Kaishin's construction timeline, the city aims to complete both the land development and the industrial water extension by fiscal 2028. The AI data center itself is advancing toward an initial modular deployment of 6.4 megawatts, with detailed design work and consultations with relevant authorities underway. Barring delays, construction is expected to begin by the end of November 2026, with operations targeted for around August 2027. The estimated project cost for the data center is approximately ¥15 billion, with an additional ¥45 billion in server-related investment anticipated.
Kaishin has set a long-term operational target of 350 megawatts by spring 2033. In late August, a special purpose company named Satsumasendai DC Energy Management Center LLC was established through a joint investment by Kraftia and Shinetsu Scientific Industry, signaling growing corporate interest in the region's energy management capabilities. The project underscores a broader trend in Japan of integrating AI data center development with regional industrial policy, water infrastructure, and energy planning, as municipalities compete to attract the power-intensive facilities that underpin the country's digital economy.
Satsumasendai Unveils GX Strategic Zone Plan for AI Data Center Hub with ¥12B Site Development
By: IDCNOVARegion: East Asia