Archives par mot-clé : Hydrogen

A Hydrogen Future? Some Basic Facts

by P. Homewood, July 5, 2020 in NotaLotofPeopleKnowThat


There has been a wide ranging debate about hydrogen in the last couple of days, so I thought it worthwhile to recap some of the basic facts. Most of these are from the Committee on Climate Change’s Net Zero report last year, otherwise I will provide links.

I have referred to many of these facts before, but they sometimes get lost in the fog of technical debate. If anybody disagrees with these facts, please explain where the CCC went wrong.

Production

There are essentially two methods of producing hydrogen:

1) Steam reforming

This process typically usually uses natural gas as the feedstock, but produces CO2 as a by-product. Therefore, for the process to be “low carbon”, carbon capture and storage would be necessary. Unfortunately even then not all of the CO2 is captured. Allowing for upstream emissions as well, the CCC estimate that the process will only reduce emissions by 60 to 85%, compared to burning natural gas instead.

The cost of producing hydrogen via steam reforming with CCS is estimated to be triple the current wholesale price of natural gas (ie before adding distribution costs).

2) Electrolysis

The CCC explain why electrolysis can only offer a limited contribution:

Hydrogen station explodes, Toyota halts sales of fuel cell cars, is this the end?

by Fred Lambert, June11, 2019 in Electrek


A hydrogen refueling station exploded in Norway on Monday and the company operating the station has suspended operation at its other locations following the explosion.

Now, Toyota and Hyundai are both halting sales of fuel cell vehicles in the country.

Does this spell the end of fuel cell hydrogen vehicles as a “zero-emission” alternative?

The Uno-X hydrogen station in Sandvika in Bærum exploded on Monday and resulted in two injuries in a nearby non-fuel cell vehicle.

According to the police, the explosion was strong enough that it activated the airbags in the vehicle without any impact.

The cause of the explosion is currently unknown and the rest of the refueling network is being shut down.