Power a house with a bottle of water?

There’s plenty of possible energy in water: hydrogen and oxygen are famously combustible, the only problem being that, in water, they’re already combined.

Splitting them unfortunately requires the same amount of energy combustion would later release — minus inefficiencies.

But a new chemical process could help low-power solar panels achieve the same effect with “artificial photosynthesis.”

Here’s a video that goes through some of it:

There’s a bit more at Scientific American and Popular Science.