TLDRs;
- SoftBank shares slipped slightly after Masayoshi Son revealed plans to pursue a stake in Tepco.
- The investment aims to secure reliable electricity supplies for SoftBank’s expanding AI data center ambitions.
- SoftBank is already developing a major AI data center in Osaka with plans for significant expansion.
- Rising AI infrastructure demand is expected to account for most of Japan’s power consumption growth.
SoftBank Group’s (SFTBY) stock edged lower in recent trading after the Japanese technology conglomerate disclosed plans to pursue a stake in Tokyo Electric Power Co. (Tepco), a move designed to secure electricity supplies for its rapidly growing artificial intelligence ambitions.
The development, first reported by TIA, underscores the increasingly critical relationship between energy infrastructure and AI expansion as technology companies race to build large-scale data centers.
SoftBank Eyes Strategic Power Deal
Speaking to shareholders on June 24, SoftBank founder and Chief Executive Masayoshi Son confirmed that the company is seeking an investment in Tepco, Japan’s largest electricity utility. According to Son, SoftBank Corp., the group’s telecommunications subsidiary, has positioned itself as a potential buyer.
While Son stopped short of disclosing the size of the proposed investment or any financial terms, he emphasized that ensuring a stable electricity supply has become essential as the company scales up its AI operations.
The proposed transaction would represent an unusual partnership given Tepco’s ownership structure. The utility has remained under significant government control since the aftermath of the 2011 Fukushima nuclear disaster. In 2012, the Japanese government acquired a 50.11% voting stake in Tepco as part of a broader rescue package aimed at stabilizing the company.
Tepco has also received approximately 10.2 trillion yen, equivalent to around $63 billion, in interest-free government loans to fund Fukushima-related compensation, cleanup efforts, and decontamination programs.
AI Expansion Drives Energy Needs
SoftBank‘s interest in Tepco comes as the company aggressively expands its artificial intelligence infrastructure footprint across Japan.
One of its most ambitious projects is currently under development at Sharp’s former liquid crystal display manufacturing facility in Osaka. The site is being transformed into a major AI data center complex that will initially feature more than 150 megawatts of power capacity.
SoftBank is looking to invest in Japan’s biggest power utility to help secure the electricity needed to expand in artificial intelligence, the company’s chief executive officer said https://t.co/RyY3okFhi7
— Bloomberg (@business) June 24, 2026
SoftBank has even larger plans for the facility. The company intends to eventually expand capacity beyond 400 megawatts, making it one of Japan’s most significant AI computing hubs.
As AI models become increasingly sophisticated, demand for computing power, and by extension electricity—has surged worldwide. Training and operating advanced AI systems requires enormous energy resources, prompting technology companies to secure long-term power arrangements.
For SoftBank, obtaining an ownership position in a major utility could provide strategic advantages, including more predictable access to electricity as competition for grid capacity intensifies.
Japan Faces Growing Grid Constraints
The push for AI infrastructure is creating new challenges for Japan‘s electricity network.Research firm Wood Mackenzie estimates that data centers will account for roughly 60% of growth in Japan’s electricity demand through 2034. The forecast highlights how AI and cloud computing are reshaping energy consumption patterns across the country.
The situation is especially challenging around Tokyo, where developers seeking to build new data centers often encounter lengthy delays. Industry estimates suggest some projects can face waiting periods ranging from five to ten years before obtaining sufficient grid access.
These constraints have increased the importance of securing reliable energy sources early in the development process. Companies unable to guarantee electricity availability could face significant delays in bringing AI facilities online.
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