Green Hydrogen - Revision history

Lisafeldmann at 08:20, 15 May 2023

2023-05-15T08:20:19Z

Lisafeldmann at 07:32, 15 May 2023

2023-05-15T07:32:25Z

Lisafeldmann at 10:28, 12 December 2022

2022-12-12T10:28:58Z

Lisafeldmann at 09:27, 28 November 2022

2022-11-28T09:27:16Z

Lisafeldmann at 11:43, 3 November 2022

2022-11-03T11:43:20Z

Lisafeldmann: /* Costs of Green Hydrogen */

2022-11-03T11:41:27Z

Costs of Green Hydrogen

Lisafeldmann: /* Further Reading */

2022-11-03T11:40:58Z

Lisafeldmann: /* Further Reading */

2022-11-03T11:39:24Z

Lisafeldmann: /* Green Hydrogen Case Studies */

2022-11-03T11:33:52Z

Green Hydrogen Case Studies

Lisafeldmann at 11:21, 3 November 2022

2022-11-03T11:21:56Z

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 * Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/08/15/green-hydrogen-hype-or-beacon-hope Green hydrogen – hype or beacon of hope? Opportunities, risks and strategies for green hydrogen production in the global south.]
 * Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/05/18/pastoralism-and-large-scale-renewable-energy-and-green-hydrogen-projects Pastoralism and large-scale REnewable energy and green hydrogen projects]
 * GIZ (2022): [https://www.giz.de/en/downloads_els/H2.SA-Factsheet_220505.pdf Promoting a South African Green Hydrogen Economy (H2.SA)]
 * ESMAP (2020): [http://documents.worldbank.org/curated/en/953571597951239276/Green-Hydrogen-in-Developing-Countries Green Hydrogen in Developing Countries]

← Older revision		Revision as of 07:32, 15 May 2023
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	=== References ===		=== References ===
	<references />		<references />
		+	[[Category:Hydrogen]]
		+	[[Category:Renewable Energy]]

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 === Overview ===
-Falling costs for hydrogen produced with renewable energy, combined with the urgency of cutting greenhouse-gas emissions, has given clean hydrogen unprecedented political and business momentum. Its potential role for the energy transition and the road to net zero has raised high expectations over the last years and months.
+Falling costs for hydrogen produced with renewable energy, combined with the urgency of cutting greenhouse-gas emissions, has given green hydrogen unprecedented political and business momentum. Its potential role for the energy transition and the road to net zero has raised high expectations over the last years and months.
 This article sheds light on (green) hydrogen, its use, market and costs, as well as its advantages and disadvantages.

← Older revision		Revision as of 09:27, 28 November 2022
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	=== Further Reading ===		=== Further Reading ===
		+
		+	* Mulako Dean Mukelabai, Upul K.G. Wijayantha, Richard E. Blanchard (2022): [https://www.sciencedirect.com/science/article/pii/S1364032122005949 Renewable hydrogen economy outlook in Africa]. In: Renewable and Sustainable Energy Reviews, Volume 167, October 2022, 112705

	* Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/08/15/green-hydrogen-hype-or-beacon-hope Green hydrogen – hype or beacon of hope? Opportunities, risks and strategies for green hydrogen production in the global south.]		* Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/08/15/green-hydrogen-hype-or-beacon-hope Green hydrogen – hype or beacon of hope? Opportunities, risks and strategies for green hydrogen production in the global south.]

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 Besides this color scheme, sometimes the wording “low-carbon hydrogen” is used. This refers to both green hydrogen and blue hydrogen, see IEA (2022): Africa Energy Outlook.
 Below find two common color schemes of hydrogen from Sierra Club and IRENA 2020.
 [[File:Colours_of_hydrogen-sierra_club.png|alt=|400x400px]][[File:IRENA_2020_Shades_of_Hydrogen.png|alt=|600x600px]]

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 === Costs of Green Hydrogen ===
 According to the IEA, green hydrogen costs between USD 2.5 and USD 6/kg, whereas grey hydrogen costs around 1 USD per kg (produced using Middle East gas), but can be as high as 3 USD/kg in other regions.<ref name=":8">https://www.carbonbrief.org/in-depth-qa-does-the-world-need-hydrogen-to-solve-climate-change/</ref>
 Despite declining costs, green hydrogen is still 2-3 times more expensive than blue hydrogen, which is also considered “clean” as the carbon is captured and stored. The most relevant cost component for green hydrogen is the cost of the renewable energy needed for the electrolysis. To make green hydrogen competitive, low electricity costs are thus a necessary precondition. With declining renewable energy costs, the cost of producing green hydrogen will also go down. The second largest cost component is the electrolyzer, which need a cost reduction in investment and construction and an increase in performance and durability for making green hydrogen cost competitive.<ref name=":4" />

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 === Production of Hydrogen ===
-There are different methods of hydrogen production, which determines how climate-friendly the hydrogen is. There is a color scheme used to distinct these different production methods:<ref name=":5">https://www.weforum.org/agenda/2021/12/what-is-green-hydrogen-expert-explains-benefits/</ref><ref>https://www.eia.gov/energyexplained/hydrogen/production-of-hydrogen.php</ref><ref name=":1">[https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2020/Nov/IRENA_Green_hydrogen_policy_2020.pdf IRENA (2020), Green Hydrogen: A guide to policy making]</ref><ref><nowiki>https://cleantechnica.com/2021/10/14/hydrogen-heating-cooking-would-cost-homeowners-100000-extra-over-15-years/</nowiki> </ref>
+There are different methods of hydrogen production, which determines how climate-friendly the hydrogen is. There is a color scheme used to distinct these different production methods:<ref name=":5">https://www.weforum.org/agenda/2021/12/what-is-green-hydrogen-expert-explains-benefits/</ref><ref>https://www.eia.gov/energyexplained/hydrogen/production-of-hydrogen.php</ref><ref name=":1">[https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2020/Nov/IRENA_Green_hydrogen_policy_2020.pdf IRENA (2020), Green Hydrogen: A guide to policy making]</ref><ref>Clean Techncia (2021): [https://cleantechnica.com/2021/10/14/hydrogen-heating-cooking-would-cost-homeowners-100000-extra-over-15-years/ Hydrogen Heating & Cooking Would Cost Homeowners $100,000+ Extra Over 15 Years] </ref>
 * '''Grey hydrogen is''' produced by splitting fossil fuels like methane (CH<sub>4</sub>) (sourced from natural gas) or coal with steam into H<sub>2</sub> and CO<sub>2</sub>. '''Every ton of hydrogen produced from natural gas also produces 8–10 tons of CO<sub>2</sub>'''. Since hydrogen produced from coal produces significantly higher CO<sub>2</sub> emissions (20-35x), it is sometimes also called brown or black hydrogen instead of grey.
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 * GIZ (2022): [https://www.giz.de/en/downloads_els/H2.SA-Factsheet_220505.pdf Promoting a South African Green Hydrogen Economy (H2.SA)]
 * Journal of Cleaner Production (2018): [https://www.researchgate.net/publication/325758536_Environmental_sustainability_of_renewable_hydrogen_in_comparison_with_conventional_cooking_fuels Environmental sustainability of renewable hydrogen in comparison with conventional cooking fuels]
+* IRENA (2018): [[Publication - Hydrogen from renewable power: Technology outlook for the energy transition|Hydrogen from renewable power: Technology outlook for the energy transition]]
-* [[Publication - Hydrogen from renewable power: Technology outlook for the energy transition]]
+* IEA (2019): [[Publication - The Future of Hydrogen: Seizing today's opportunities|The Future of Hydrogen: Seizing today's opportunities]]
-* [[Publication - The Future of Hydrogen: Seizing today's opportunities|Public]]<span lang="EN-US">[https://energypedia.info/wiki/Publication_-_Hydrogen_from_renewable_power:_Technology_outlook_for_the_energy_transition Publication      - Hydrogen from renewable power: Technology outlook for the energy      transition]</span>[[Publication - The Future of Hydrogen: Seizing today's opportunities|ation - The Future of Hydrogen: Seizing today's opportunities]]
+* IEA (2019): [[Publication - Hydrogen: A renewable energy perspective|Hydrogen: A renewable energy perspective]]
+*

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 === Green Hydrogen Case Studies ===
 Do you have a case study on green hydrogen you want to share? Please add it here! Or get in touch with info@energypedia.info
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 * Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/08/15/green-hydrogen-hype-or-beacon-hope Green hydrogen – hype or beacon of hope? Opportunities, risks and strategies for green hydrogen production in the global south.]
+*

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 * Heinrich Böll Stiftung (2022): [https://www.boell.de/en/2022/08/15/green-hydrogen-hype-or-beacon-hope Green hydrogen – hype or beacon of hope? Opportunities, risks and strategies for green hydrogen production in the global south.]
+*
 === References ===
 <references />