UK100 Start-Ups: Naked Energy
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This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.
Naked Energy is transforming heat with UK-built solar thermal technology that can be up to ten times more efficient than standard PV. With landmark projects like the British Library, it’s redefining how Britain decarbonises heat at scale.

This article is part of The UK100 Start-Ups, a special edition by Entrepreneur UK showcasing the most exciting startups redefining business in 2026. From climate and health to AI and creativity, these innovators are tackling big challenges—while racing to scale, secure funding, and attract top talent.
Naked Energy is transforming heat with UK-built solar thermal technology that can be up to ten times more efficient than standard PV. With landmark projects like the British Library, it’s redefining how Britain decarbonises heat at scale.