Fusion energy with OpenStar Technologies
Ara Ake is supporting OpenStar with upgrades to its half-tonne, doughnut-shaped magnet, known as Junior.
Fusion energy, the process of generating power by fusing light atomic nuclei, has the potential to safely provide limitless, clean power for Aotearoa New Zealand and the world. OpenStar Technologies, founded in 2021 in Wellington, is pioneering commercial fusion through its levitated dipole reactor, aiming to replicate the process that powers the sun to deliver abundant, carbon-free energy.
The company brings together world leading experts in physics, engineering and superconducting technologies. In late 2024, OpenStar achieved first plasma in its prototype reactor, a critical milestone demonstrating the viability of its levitated dipole design.
Impact unlocked
OpenStar’s work represents a transformative step toward carbon-free energy. Achieving plasma in Junior proves the levitated dipole reactor concept works, providing a strong foundation for future development and international partnerships. The upgraded system will enhance research capabilities, strengthen global collaboration, and accelerate progress toward a commercially viable fusion reactor.
Ara Ake contribution
Ara Ake is supporting OpenStar with upgrades to its half-tonne, doughnut-shaped magnet, known as Junior. This includes the first global commercial use of a superconducting power supply (flux pump) in a high-field fusion-class magnet. These upgrades will accelerate research, enable international collaboration, and reduce technical risks, helping OpenStar move closer to commercial fusion energy. The repayable grant also allows the procurement of critical materials and resources needed for Junior, ensuring the project can progress on schedule.
Ara Ake’s support ensures that OpenStar can carry out critical upgrades without delay, mitigating technical risks and enabling the company to engage with international partners. By backing this next generation energy innovation, Ara Ake is helping to bring fusion energy one step closer to reality, supporting Aotearoa’s transition to a clean and resilient energy future.
Media
13 November 2025: Ara Ake Impact Report
12 March 2025: A major leap for fusion energy - made in New Zealand