Truly green hydrogen from renewable sources
most importantly is clean
when you convert it, whether it is in a fuel cell
or is in a combustion-type engine,
the by-products are essentially water.
So our process for renewable hydrogen
is taking water from the air
and then we use energy from the sun
in the form of electricity through our solar PV panels
and that gets fed into an electrolyser.
The electrolysis process is really simple -
we take electricity from solar PV
and we split water molecules.
We split the Oxygen from the Hydrogen molecules
to finish up with O2 that goes into the atmosphere
and Hydrogen that we can use in a fuel cell.
Despite all its positive features,
one of the shortcomings of hydrogen is
the energy content per volume is relatively small.
For that reason, people have been thinking about
other ways of transporting hydrogen
and that's where we started to work with a number of industry partners
to produce green methane by combining
CO2 from clean sources, as well as renewable hydrogen -
we convert that to green methane.
There is an existing infrastructure for the transport of methane.
Just in our country, we have thousands of kilometres
of natural gas pipelines.
Almost $23 billion worth of assets
actually sits there in those natural gas pipelines.
Essentially the main component of natural gas -
the town gas that we have at home -
is methane.
So in a way we're talking about 'business as usual'
except the gas that is coming out is actually renewable gas.
That's why we're basically working with industry on that
to get the hydrogen economy moving.
