The fuel of the future is going to be water

An MIT chemist succeeded in creating hydrogen from water using sun as catalyst.
In this way Solar power could be the main source of energy.
He was able to generate oxygen from water just as green plants do during photosynthesis.
This is an achievement that could have profound implications in the energy debate.
Besides solar power can generate a huge amount of clean energy, and this way solves also the problem of storage to use it later.
Hydrogen fuel could be easily stored and be burned later.
And in a second step, it could also be possible to use sea water, which could result in the production of energy and drinkable water.