On 15/08/2019 20:24, Tim Streater wrote:
In article , The Natural Philosopher
wrote:

On 15/08/2019 14:18, charles wrote:
In article ,
Â*Â*Â* The Natural Philosopher wrote:
On 15/08/2019 13:47, Pancho wrote:
On 15/08/2019 13:15, The Natural Philosopher wrote:

Its the same as a battery. You need primary energy to charge your
hydrogen tanks.

Probably by electrolysing water using grid electricity from coaal and
gat power staions.

No comment on the viability of Hydrogen fuel cells but surely
electrolysing water is something intermittent renewable sources are
suitable for, i.e. in the UK = wind.

Bloody expensive and innefficient way to do it though

Apart from flooding valleys, how else would you store electical
energy in
reasonable quantities?

You don't store electrical energy by flooding valleys, you store energy.

Haven't you come across a flow battery?

SteveW