Sustainable Energy Breakthrough: Hydrogen Fuel from Sunlight

[Speedy]

AllGold wrote: I wonder why we don't use more tidal power, which is consistent.

It would get in the way of drill rigs.

[Bill in NC]

Electricity from renewable sources is relatively expensive.

So it's a bad idea to throw away 50% of the energy during electrolysis to hydrogen then another 50% converting the hydrogen back to electricity via a fuel cell.

It would be much more efficient to build a massive battery bank (some towns at the end of transmission lines already have these)

[Bill in NC]

And fuel cells are getting smaller & cheaper.

Here's one just right for your home:

http://www.forbes.com/sites/williampentl...uel-cells/