The Solar Panel That Makes Hydrogen at Night episode artwork

EPISODE · Jun 14, 2026 · 11 MIN

The Solar Panel That Makes Hydrogen at Night

from The Climate Tech Podcast with Fexingo: Energy, Sustainability, and Decarbonization Companies · host Fexingo

Episode 50 takes a deep dive into a breakthrough from a Caltech spinout that has developed a solar panel capable of splitting water into hydrogen and oxygen, even in the dark. By storing solar energy in chemical bonds, the device achieves a solar-to-hydrogen efficiency of 12.3 percent, which is three times higher than previous prototypes. The hosts Lucas and Luna explore how this technology could solve the intermittency problem of renewables by producing a storable, transportable fuel without relying on grid-scale batteries. They discuss the startup's path to commercialization, the economics compared with green hydrogen from electrolysis, and whether this 'direct photoelectrochemical' approach can scale from lab to rooftop. The conversation also touches on how this innovation fits into the broader push for hydrogen hubs and 2030 decarbonization targets. #SolarHydrogen #CaltechSpinout #GreenHydrogen #Photoelectrochemical #RenewableEnergy #EnergyStorage #ClimateTech #Decarbonization #HydrogenEconomy #SolarPanel #CleanFuel #StartupSpotlight #Business #Technology #Sustainability #FexingoBusiness #BusinessPodcast #ClimateTechPodcast Keep every episode free: buymeacoffee.com/fexingo

Episode 50 takes a deep dive into a breakthrough from a Caltech spinout that has developed a solar panel capable of splitting water into hydrogen and oxygen, even in the dark. By storing solar energy in chemical bonds, the device achieves a solar-to-hydrogen efficiency of 12.3 percent, which is three times higher than previous prototypes. The hosts Lucas and Luna explore how this technology could solve the intermittency problem of renewables by producing a storable, transportable fuel without relying on grid-scale batteries. They discuss the startup's path to commercialization, the economics compared with green hydrogen from electrolysis, and whether this 'direct photoelectrochemical' approach can scale from lab to rooftop. The conversation also touches on how this innovation fits into the broader push for hydrogen hubs and 2030 decarbonization targets. #SolarHydrogen #CaltechSpinout #GreenHydrogen #Photoelectrochemical #RenewableEnergy #EnergyStorage #ClimateTech #Decarbonization #HydrogenEconomy #SolarPanel #CleanFuel #StartupSpotlight #Business #Technology #Sustainability #FexingoBusiness #BusinessPodcast #ClimateTechPodcast Keep every episode free: buymeacoffee.com/fexingo

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The Solar Panel That Makes Hydrogen at Night

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This episode is 11 minutes long.

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This episode was published on June 14, 2026.

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Episode 50 takes a deep dive into a breakthrough from a Caltech spinout that has developed a solar panel capable of splitting water into hydrogen and oxygen, even in the dark. By storing solar energy in chemical bonds, the device achieves a...

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