SMRTR TechJun 3, 2025Interesting Engineering

World’s first mass-producible nuclear reactor set for testing by US startup

SMRTR summary

Radiant, a California startup, has raised $165 million in Series C funding to develop portable nuclear microreactors. The company's 1-megawatt Kaleidos reactor, designed for rapid deployment in remote areas, will undergo testing in 2026. With total funding now at $225 million, Radiant aims to mass-produce microreactors by 2028, potentially revolutionizing off-grid energy solutions for military and disaster relief applications.

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