Group: sci.energy.hydrogen
From: Eeyore
Date: Saturday, February 23, 2008 5:02 PM
Subject: Re: Will it ever become practical ?



EskWIRED@ wrote:

> In Eeyore wrote:
>
> > If you use the electricity to make hydrogen and then use the hydrogen to power a fuel cell you'll
> > lose about 70% of the energy you just created. These are inefficient processes. Hence unlikely to
> > be used in practice.
>
> Yes, but what you are forgetting is that electricity cannot be stored in
> any meaningful quantity. Hydrogen, however, can be stored.
>
> So intermittent sources of electricity, like solar, wind and hydro can be
> used to make hydrogen, for use when the sun ain't shining or the wind
> ain't blowing.

Rather better to use it to reduce the use of peaking generation actually.

Graham