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Energy in Demand - Sustainable Energy - Rod Janssen 
This is a solid point of view…it may be added – for nuclear – its nuclear fuel cycle emissions factor, starting from mining the uranium, transporting, processing it and then disposing the wastes (by the way – EU is counting in it energy efficiency directives and renewables the emissions factor for transporting wood pellets and also is counting if the pellets were produced “with green energy !). So, nuke, by all means it is not a carbon free energy.
As an example: in Romania only, it was operated a huge CHP plant on coal, for 30 years, only to produce Heavy Water for the Candu nuclear plant
So, for nuclear energy as “green electricity”!?…we must tip-toe…
The article shows that in common with oh so many of the English – he is both insular and thus out of touch with developments outside of England. Qutoting from the article “The gulf between that current reality, one rarely mentioned by hydrogen enthusiasts, and the prospect of readily available and affordable green hydrogen that could help us get to net zero, is absolutely vast”.
Hydeal by 2030 will have in Spain 63GW of electrolysers. As of next year it will be delivering industrial quantities of green H2 at a price less than grey H2. By 2030 it will produce 4 million tonnes of green H2 per year (powered by circa 100GW of PV). This will meet the need for fertiliser production for the entirety of the EU. There are other projects going ahead as well and I would expect the industrial gas companies to pile in, ditto the likes of Total.
Moving on to Porritts comments on “the speculative cost reductions for electrolysrs”. Both NEL & ITM have committed to a 50% reduction in cost before 2025 and a further 50% by 2030. Both commitments were made at capital markets days. However, CAPEX has a very small impact on green-H2 costs – the main impact is cost of elec – and PV in Spain is now rolling in at between Euro12 and Euro15/MWh.
To repeat, the article shows that at least with respect to green H2 Porritt is clueless.
I’m not an energy specialist, but, I can’t stop myself questionning:
– If I would have, even “free of charge electricity”, (say, SPANISH ELECTRICITY ALREADY AVAILABLE !), why on earth I should electrolise water (take it from irrigation or hydroplants) to produce H2 @60% efficiency and then, to burn it in a high efficiency Combined Cycle power plant @50% efficiency ?…ending up from, say 100 MW, down to 30 MW, only because I fall in love with H2 ?
PS I am not challenging other applications ?!….I talk only electricity…
we should only calculate the PEF as per EU Directives and regulations and see the effect of “green H2 “out of “green electricity” …nothing more…