A step forward in energy production, with a Wellington company hitting a significant milestone. 

The capital's OpenStar Technologies says it's created and confined plasma, allowing them to now spark fusion reactions. 

It comes as New Zealand grapples with significant supply challenges in the energy market.

Ratu Mataira is behind the development. 

He told Mike Hosking that if they're able to scale it up, it could revolutionise the energy market. 

Mataira says they're now back in the race and could beat other competitors to be the first to crack fusion energy. 

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