Investment in Commonwealth Fusion Systems LLC, a Fusion Energy Company that Designs and Develops Fusion Power Reactors2025/09/02

JERA Co., Inc. (“JERA”), through its corporate venture capital arm, JERA Ventures, has invested in Commonwealth Fusion Systems LLC (“CFS”), a U.S.-based fusion energy company. This investment was made in collaboration with each member of a consortium¹ comprising 12 Japanese companies.

CFS is the world’s leading and largest private fusion company, utilizing the magnetic confinement system (tokamak type)². The company announced plans to build the world's first commercial fusion power plant “ARC" in Virginia in the United States, with the intent of commencing operations in the early 2030s.

The Japanese Consortium will acquire technical and commercial expertise in policy, regulatory, and the development, construction, operation, and maintenance of ARC from CFS's commercialization projects in the United States. In addition, each consortium will bring together its know-how and expertise and aspire to expedite the commercialization and industrialization of fusion energy power generation in Japan.
 

The collaboration between the Japanese Consortium and CFS is in line with the Japan – U.S. joint partnership to accelerate the development and commercialization of fusion energy power generation in Japan and the United States, and represents a strong commitment and growing momentum toward the early realization of commercialization in both countries. 
 

Fusion demonstration reactor “SPARC” under construction

Illustration of the commercial fusion power plant “ARC”

Fusion energy is the immense energy generated when light atomic nuclei fuse under conditions of high temperature and pressure. Its fuel can be extracted from seawater, and the process of generating electricity using fusion energy produces no CO₂. Furthermore, it is a technology with inherently low risk and generates no high-level radioactive waste. Consequently, research and development efforts are accelerating globally, positioning fusion as a next-generation clean energy solution to environmental and energy challenges.

The JERA Group, under its “JERA Zero CO₂ Emissions 2050” initiative, is striving to achieve net-zero CO₂ emissions from its domestic and international operations by 2050. This involves expanding renewable energy and developing zero-emission thermal power generation that does not emit CO₂ during power generation. Through this investment, we will work to gain new insights into fusion energy and explore its practical application potential. By supporting the early commercialization and industrialization of fusion energy power generation in Japan, we will contribute to stable energy supply and decarbonization.

1 JERA Co., Inc.; Mitsui & Co., Ltd.; Mitsubishi Corporation; The Kansai Electric Power Co., Inc.; Mitsui O.S.K. Lines Ltd.; JGC Japan Corporation; Development Bank of Japan Inc.; NTT, Inc.; Fujikura Ltd.; Sumitomo Mitsui Banking Corporation; Sumitomo Mitsui Trust Bank Ltd.; and Mitsui Fudosan Co., Ltd. 

2 A torus-shaped fusion energy device that uses a strong magnetic field to confine ultra-high temperature plasma

About JERA Ventures

JERA Ventures is a corporate venture capital initiative making strategic investments totaling 300 million USD in start-up companies with leading-edge technologies or business concepts and in venture capital funds that have close connections to such companies. As “a sandbox for people who are serious about changing the world,” JERA Ventures aims to be a good partner for start-up companies that are taking on the challenge of changing the world in the energy domain, acting as a bridge between them and JERA.
Website:JERA Ventures | JERA

About Commonwealth Fusion Systems