Green hydrogen diplomacy refers to the foreign-policy activity surrounding hydrogen produced by electrolysis powered by renewable energy, as distinct from "grey" hydrogen (from unabated natural gas) or "blue" hydrogen (with carbon capture). As governments treat hydrogen as a strategic energy carrier for decarbonising steel, shipping, aviation fuels, and fertiliser, diplomats are negotiating offtake agreements, certification regimes, port and pipeline infrastructure, and concessional finance.
Key features include:
- Bilateral supply partnerships between renewables-rich exporters (Australia, Chile, Morocco, Namibia, Saudi Arabia, the UAE, Oman) and energy-import-dependent buyers (Germany, Japan, South Korea, the Netherlands).
- Certification and standards disputes over what counts as "green," "low-carbon," or "renewable" hydrogen. The EU's Renewable Energy Directive delegated acts (adopted 2023) set additionality, temporal correlation, and geographic correlation rules for renewable fuels of non-biological origin (RFNBOs).
- Industrial-policy interaction with instruments such as the EU Carbon Border Adjustment Mechanism, the U.S. Inflation Reduction Act's 45V production tax credit, and Japan's Contracts for Difference scheme.
- Multilateral forums including the International Renewable Energy Agency (IRENA), the Clean Energy Ministerial's Hydrogen Initiative, and the International Partnership for Hydrogen and Fuel Cells in the Economy (IPHE).
Critics raise concerns about green colonialism — large export projects in the Global South consuming scarce water and land while final products are shipped to industrialised buyers — and about the energy losses involved in converting hydrogen to ammonia or liquid organic carriers for shipping. Supporters argue hydrogen partnerships can anchor industrial development, attract capital, and diversify energy supply away from fossil incumbents.
Green hydrogen diplomacy sits at the intersection of climate negotiations under the UNFCCC, trade law, and traditional energy geopolitics, and is reshaping how states think about long-term energy security.
Example
In 2022 Germany and Canada signed the Canada–Germany Hydrogen Alliance in Stephenville, Newfoundland, committing to start transatlantic green hydrogen exports by 2025.
Frequently asked questions
Green hydrogen is made by electrolysing water using renewable electricity. Grey hydrogen comes from natural gas without carbon capture, and blue hydrogen uses natural gas with carbon capture and storage.
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