Helical Fusion Secures ¥2.3B to Develop Net Power Plant

Helical Fusion Co., Ltd., a private fusion energy developer based in Japan, has closed its Series A round, securing JPY 2.3 billion in funding. This brings total capital—including grants and loans—to JPY 5.2 billion (USD 35 million), accelerating the “Helix Program”, a roadmap toward a steady-state net power fusion plant in the 2030s.

The Urgency of Fusion

Global electricity demand is projected to rise sharply by 2050, fueled by population growth and the rapid expansion of energy-hungry technologies like AI. Conventional sources cannot sustainably meet this demand. Fusion, fueled by abundant seawater, offers zero-carbon baseload energy—if technical and economic barriers can be overcome.

Analysts project a USD 550 billion annual market for fusion by mid-century*. Helical Fusion’s Series A attracted investors including SBI Investment, Keio Innovation Initiative (KII), and 17 other institutions(19 in total) alongside individual investors and public financial institutions, reflecting a growing commitment across Asia to compete in the global fusion race.

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Why Helical Stellarator? Proven Path to Steady-State Operation

The fusion reactor developed by Helical Fusion is based on the stellarator design—a magnetic confinement approach that enables inherently stable, continuous plasma operation.

Unlike pulsed approaches such as tokamaks or laser-based fusion, the stellarator has a proven track record of steady-state operation, backed by decades of experimental data.

Our concept builds on nearly 70 years of worldwide research, particularly at the National Institute for Fusion Science (NIFS) in Japan, home to the Large Helical Device (LHD)—one of the world’s most advanced stellarator facilities.

By applying this scientific legacy to modern engineering and manufacturing, Helical Fusion aims to deliver the world’s first commercially viable stellarator for electricity generation.

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