I’ll take one!
This technology, developed by MIT, mimics photosynthesis–to the 10th power–which is how plants turn sunlight and water into energy.
It’s doesn’t actually look at all like a leaf though but it is inexpensive and the technology is stable.
The hydrogen and oxygen gases would be stored in a fuel cell, which uses those two materials to produce electricity, located either on top of the house or beside it.
Debut of the first pratical ‘artificial leaf’