[unseen1]

this could be to the electric grid what the car was to the railroads. One of the biggest problems with green energy has been storage. when the wind doesn’t blow or the sun doesn’t sun what then? With this if it is cheap enough the making of O2 and H2 could power the home. fuel cells have been stymied because of the lack of a H2 market. If the H2 become easy for a private person to make and use. It could be a new day. now they will have to design compact storage tanks for H2 or a way to compress the gas. safety concerns will also be a big deal. But if sunlight can make H2 and O2 cheaply the entire world as we know it has just changed...

[Normandy]

Here’s a video with Daniel Nocera talking a bit more about the process, and how they store the energy when the sun is not shining.

http://www.youtube.com/watch?v=k7ok8cOJbmo

[PapaBear3625]

now they will have to design compact storage tanks for H2 or a way to compress the gas

For small-scale, rural third-world applications, the hydrogen and oxygen could be stored uncompressed in a pair of large Mylar balloons sitting in a little shed off to the side of the house.