From Wood Mackenzie
A growing focus on net zero targets favours green hydrogen
The last year has seen a decisive pivot towards decarbonisation globally which is extremely positive for zero-carbon technologies. Recent announcements of net-zero targets from China, Japan, South Korea and Canada, along with the US recommitting to the Paris Agreement, show policy momentum to tackle global warming is now unstoppable.
Green hydrogen is a key beneficiary, with this pivot pushing it to the fore ahead of other methods for producing the gas. In fact, electrolysis-based low-carbon production now makes up 67% of the overall pipeline for hydrogen.
Policy and strategy are becoming focused on hydrogen
The EU’s Green Recovery Package announced last year specifically earmarked €150 billion for green hydrogen. This financial commitment was accompanied by specific targets for electrolyser capacity – 6 GW in the first phase between 2020 and 2024, with 40 GW to be installed by the end of the second phase in 2030.
As a direct result Europe is currently driving growth, representing 79% of the overall low-carbon hydrogen pipeline. However, with 17 countries (including Japan, South Korea and Canada) having announced a hydrogen strategy, roadmap or vision and the global trend towards net-zero targets clear, that dominance is likely to be temporary.
Commercial and financial interests are following suit
After a pandemic-related dip in Q2 and Q3 2020, investment in low-carbon hydrogen is once again on the up. At least US$4.5 billion was invested in the hydrogen market in the first quarter of 2021 alone, with 55 projects announced.
As Dr Graham Cooley, chief executive of electrolyser manufacturer ITM Power, said at our recent Power & Renewables Conference: “The capital markets absolutely understand green hydrogen now… we wouldn’t be where we are today if we didn’t have the backing from the City.” Incentives are needed in the short term to ensure the industry can scale at the pace required, but the interest is already there.
Low-carbon hydrogen project announcements by quarter, Q1 2017 – Q1 2021 (mmtpa)
The ability to manufacture ever larger electrolysers that can produce green hydrogen at scale is a key factor in enabling rapid expansion of the sector. (ITM Power’s new manufacturing facility has a capacity of one gigawatt per year, for example.) This also has the usual benefits of scale in terms of bringing down costs. Our own estimates are that green hydrogen will be competitive with fossil fuels by 2028 to 2033, assuming a US$30/MWh power price in 2030.
There is growing ability to produce green hydrogen at scale
Until 2019, global estimated electrolyser manufacturing capacity was a mere 200 MW. That has since jumped to 6.3 GW of current announced electrolyser capacity, with 1.3 GW added in Q1 2021 alone and another step up in the announced pipeline.
Of course, this still represents only a small percentage of the almost 1,000 GW of electrolyser capacity needed by 2050 to meet our demand forecasts. However, the exponential rate of growth in manufacturing capacity is clear and likely to continue.
Hydrogen is a versatile, storable energy source
Finally, a key advantage of hydrogen is that it acts as a versatile form of storable energy. So-called ‘power-to-X’ – turning electricity into green hydrogen – is crucial to maximising the efficiency of renewable energy sources like wind and solar, which cannot be easily dialled up and down as required.
As Dr Cooley pointed out: “Electrons are really hard to store, and the best way of storing them is to turn them into a storable product. So, you end up changing the vector from an electron to a molecule – and then being able to store the molecule.”
Hydrogen is also extremely versatile, making it possible not only to decarbonise areas like transport and heating where renewable energy has potential, but also to decarbonise industrial processes which cannot be converted to electricity.
Author: Ben Gallagher, Lead Analyst, Emerging Technologies at Wood Mackenzie
The views and opinions expressed in this article are the author’s own, and do not necessarily reflect those held by pv magazine.
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The problem I see with hydrogen being this solution to seemingly everything, is that it is MUCH more efficient (by 3x) to use the energy directly, rather than convert it to hydrogen. 1000GW of electrolysers requires over 3000GW of renewable energy and when you take into account capacity factors, more like 9000GW! Dr Cooley is wrong, money is flowing into a distorted market and most people don’t understand it at all
A long time ago I read an article that said that the major problem with hydrogen is that it britilized everything it came in contact with. I have seen nothing which suggests this problem has been solved or was a figment of the author’s imagination.
Instead of batteries ,…Electron storage in chemical molecules seem to be the more feasible way..through use of fuel cells….Chemical Storage including H2,MeOH…..
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