On 30-Sep-17 10:00 AM, MrCheerful wrote:
On 30/09/2017 09:40, Steve H wrote:
MrCheerful wrote:

On 29/09/2017 23:30, Steve H wrote:
Hydrogen seems sensible - you can make it on site (yes, you need a big
electric cable - but so does a forecourt of charging stations) - you
can
fill a lightweight kevlar / carbon tank in minutes and get 500 miles of
driving with only water / steam as the tailpipe emmissions.

It is only possible to store enough onsite for a couple of fills, and
then takes several hours to make the next lot.

So how many filling stations will be needed?

The install can deliver to 30 cars per day. But it's scalable and is
really at beta test stage.


The ITM Hydrogen Refueling Station (HRS) being rolled out in the UK for
public use does not serve 30 cars a day. It can serve 16 cars a day.
They will have to install a larger or 2nd unit for 30 cars/day.

A normal filling station at present serves 30 cars in thirty minutes, so
it would have to ramp up a real lot.
Would specialised staff be required to keep the filling process safe?
Good site for a terrorist attack too.
I would hazard a guess that hydrogen stations would not be permitted
anywhere near housing.Â* I have only seen one and that was well in the
countryside.

More FUD.

ITM HRS can only store about 15Kg of hydrogen so doesn't pose a big
threat if blown up. About the same risk as 3 car petrol tanks. LPG
filling stations with above ground tanks are a better target in terms of
energy release.

As it can only fill 3 cars back to back if you are 4th in line then you
have to wait 24/16 = 1 1/2 hours for it to make a tank full of H2. A HRS
with capacity for 30 cars/day is unlikely to store more H2 for safety
reasons so the wait for 4th fill will be 24/30 = 48 min.

There are less than 50 fuel cell cars in the UK and only idiots will be
buying them at £60K a pop. The EV equivalent (OK with 1/2 the range but
1/2 price fuel) is around £30K.

The ITM HRS is electrolytic and uses grid connected electricity to make
the H2 on-site. So a 30 car/day station will put just as much load on
the grid as an EV charger that can charge 30 cars/day.

20 tons H2/day needs 50 MW of power. That will need a large gas turbine
all to itself.
https://www.airqualitynews.com/2017/...ling-stations/