green hydrogen uses

In the article Hydrogen Myths and opportunities, we looked at misconceptions. This article summarises green hydrogen opportunities which may help improve exports, reduce mining emissions and decarbonise the existing fossil methane derived Hydrogen economy.

Green hydrogen might play a role in decarbonisation. Here are just some of the challenges and opportunities

  1. Where is the supply?
  2. How do you get sufficient renewable energy
  3. Can you mass-produce the electrolyzer to bring the cost down
  4. Are there new electrolyzer technologies that can reduce costs under $1 per kg.
  5. Market opportunities.

Recent H2 Media

  • FFI (Fortescue Metals ASX:FMG) has already developed their own hydrolyser to create green hydrogen (CleanTechnica) in their article Green Hydrogen Dominoes Stacking Up. FFI Chief Executive Officer Julie Shuttleworth “FFI has developed a number of new electrolyser technologies that will form part of their electrolyser patent family. The outcomes of these projects will inform FFI’s electrolyser technology selection going forward, as FFI works towards its target to produce 15 million tonnes of green hydrogen per year by 2030”. The electrolyser will be producing green hydrogen by the end of 2022 powered by solar panels installed on the roof of FFI’s Dawson Road facility near the Perth Airport, Western Australia.
  •  Plug Power Inc. (NASDAQ: PLUG), a leading provider of turnkey hydrogen solutions for the global green hydrogen economy, and Fortescue Future Industries Pty Ltd (FFI) 50/50 joint venture to build a Gigafactory in Queensland, Australia. FFI agreed to purchase 250 megawatts of Plug Power’s electrolyzer solutions. Plug Power will supply these from its Gigafactory in Rochester, N.Y., . Delivery is planned for the second half of 2022
  • The Queensland government has announced a feasibility study will be conducted into the use of hydrogen-powered trains for bulk freight. Freight operator Aurizon and mining group Anglo American will conduct the study, looking at whether hydrogen fuel cell and battery hybrid power units can be used in heavy-haul freight rail operations. (Press release)
  • QLD Govt fast tracked a construction site at Gladstone QLD. FFI and Plug Power intend to build a two-gigawatt factory to produce large-scale proton exchange membrane (PEM) electrolysers, with the ability to expand into fuel cell systems and other hydrogen-related refuelling and storage infrastructure in the future. (Press release)

International Media

  • FFI and JBC – a manufacturer of industrial construction equipement have agreed that green hydrogen will be used to power construction equipement (press release)
  • FFI and JBL signed a deal to convert UK bus fleet to hydrogen (Press Release)
  • The agreement has JCB and Ryze purchasing 10 percent of Fortescue’s global green H2 output. The UK companies will be managing the distribution of the renewable energy fuel alongside the UK’s “development of customer demand, (Press Release)

Green Hydrogen Organisation (GH2)

FFI funded the GH2 as a consortium of like-minded investors, and a recent conference in Barcelona has some ambitious goals. (From Recharge). Key points include:

  • The ambitious global campaign, aimed at COP27, for 100 million tonnes of green H2 to be produced annually by 2030, up from less than 100,000 today.
  • There is about 1 million tonnes of grey hydrogen currently used – so green H2 would replace all of that column rapidly.
  • No blending of up to 20% H2 into Gas.
  • FFI itself to produce 15 million tonnes of green hydrogen annually by 2030
  • Demand for 1,400 GW or 5,000 TWh of green energy production is required. Note, in 2021, 290GW RE was added globally
  • Would need to double new RE installed each year.
  • Green hydrogen would actually be cheaper to produce than grey H2 in most parts of the world today due to high natural-gas prices, and due to the dash from Russian gas, those prices are not likely to fall any time soon.

Green Hydrogen Opportunities

Green hydrogen has 3 problems to solve: cheap manufacture; cheap storage and transport; and customer uses

  1. Replacement of existing gray Hydrogen use
  2. Construction or mining heavy vehicles
  3. Shipping – replacement for bunker oil
  4. Green steel making
  5. Heating
  6. Backup for electricity production

1. Replacement of existing Hydrogen

The Economist’s View of Hydrogen is that existing use of gray H2 can be rapidly substituted with green hydrogen.

  • No change is needed. The only change is to pay a fair price.
  • The methane to H2 facilities will become stranded assets.
  • No compression / storage or transport infrastructure.

Today’s hydrogen business is, in global terms, reasonably small, very dirty and completely vital. Some 90m tonnes of the stuff are produced each year, providing revenues of over $150bn—approaching those of ExxonMobil, an oil and gas company. This is done almost entirely by burning fossil fuels with air and steam—a process which uses up 6% of the world’s natural gas and 2% of its coal and emits more than 800m tonnes of carbon dioxide, putting the industry’s emissions on the same level as those of Germany.

The Economist Oct 2021
Creating the new hydrogen economy is a massive undertaking | The Economist
Creating the new hydrogen economy is a massive undertaking (Read the Article Here)

2. Heavy Vehicles

A supply contract has been made with JBC in UK. FFI has mining companies in Australia that use 3 billion litres of diesel each year. Conversion of that would provide immediate end-use.

3. Shipping

FFI and others are looking for swapping out dirty bunker oil (see cruise ships toxic legacy). Removal of fossil fuel (coal, oil and gas) will remove 50% of shipping traffic. Others are looking at using H2 for fuel. As reported by Renew Economy in June 2022 running cargo ships entirely on green hydrogen-based fuels would add less than 15 cents to a new pair of Nikes or up to $12 for a new fridge. The study was published by Transport & Environment (T&E), Europe’s leading clean transport campaign group, and analysed the likely cost increase in seaborne transport if the sector were to fully decarbonise.

TE recommends the proposed FuelEU Maritime (FEUM) and the Maritime ETS is substantially strengthened.

4. Green Steel Making

See the previous article on steel making. It may be that FFI has its eye on establishing a steel production factory in Western Australia. Why?

  • Iron ore processed in Australia has more value as green steel rather than raw ion ore.
  • Shipping costs are reduced
  • The steel making process may be cheaper than burning metallurgic coal when using low cost renewable energy and green hydrogen.
  • Green steel demand will rise.

5. Heating – substitition of Methane Gas (LPG and natural gas) by H2

Hydrogen can substitute for the fossil methane gas but this will depend on the reticulation of gas.

6. Backup Electricity Grids

The economics of battery, grid interconnection and mix of energy sources would make costs may exceed benefits. Gas peakers could use a gas / H2 mix.

Hydrogen Technology Improvements

One problem H2 faces is the cost of the technology to make green hydrogen. Making gray or blue hydrogen using carbon capture and storage is not green. But there are some R&D that might make it to production.

Advanced Ionics has developed an electrolyzer that runs at temperatures below 650 C. It is reportedly able to produce hydrogen for $0.85/kg or less. An interview with the CEO is on PV Magazine in May 2022. The CEO says “Our Symbiotic technology is a new class of electrolyzer. It is not alkaline, PEM, or Solide Oxide (SOEC)”.

Alkaline, anion exchange membrane (AEM), and polymer electrolyte membrane (PEM) are cold electrolyzers using liquid water. Solid oxide electrolyzers are hot electrolyzers working with heated steam, corresponding to higher efficiency. As said, the company’s electrolyzer operates with temperatures in between. The idea is that temperatures in between allow for high efficiency, while also using cheaper materials for the large-scale assembly, including the stack. The industry is currently trying to step away from platinum which Russia is a major supplier. The technology uses engineered porous metal electrodes and composite ionic materials for its electrolyte.

Other electrolyzers require a minimum of 40 kWh per kilogram of hydrogen, and are usually closer to 50 kWh. Advanced Ionics claim they can produce hydrogen for below 35 kWh, and that results in a dramatically lower cost,

Ionics claim they use 50% less electricity, which is the major cost.
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