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Environmental and Economic Assessment of Ammonia as a Fuel for Ships
Article

Environmental and Economic Assessment of Ammonia as a Fuel for Ships

Trevor Brown March 17, 2020

This month, the Korean Register published a comparative assessment of the environmental and economic merits of using ammonia as a maritime fuel. The work, written in collaboration with researchers at Pusan National University, is published in the open-access Journal of Marine Science and Engineering. It concludes that "ammonia can be a carbon-free fuel for ships," and presents "a meaningful approach toward solving GHG problems in the maritime industry."

Ammonia as a unicorn technology and the UK's opportunity for COP26
Article

Ammonia as a unicorn technology and the UK's opportunity for COP26

Trevor Brown March 12, 2020

The Guardian newspaper in the UK this week published a comment piece on ammonia's potential as a "unicorn technology," which the authors define as a technology that can "deliver a reduction of at least a billion tonnes of CO2 a year." The article focused on the UK's opportunity, as host of the upcoming COP26 meeting in Glasgow this November, to take a leadership position in solving climate change. The authors, all based at the University of Oxford, outline a strategy by which the UK government could leverage existing British business and academic expertise to build global coalitions, to develop, demonstrate, and roll out "the 'hydrammonia' economy."

H2U moves forward with 3 GW green ammonia export plant
Article

H2U moves forward with 3 GW green ammonia export plant

Trevor Brown March 12, 2020

According to a statement released by the Queensland government last week, the clean infrastructure development firm Hydrogen Utility (H2U) has purchased a 171-hectare site in Gladstone, Queensland, where it intends to build a green ammonia export plant with initial operations beginning in 2025. This "H2-Hub" will be built in stages, scaling up over time to reach up to 3 GW electrolyzer capacity for green hydrogen production, and up to 5,000 tons per day of green ammonia. This is at least twice the size of a conventional natural gas-based world-scale ammonia plant.

Royal Society publishes Green Ammonia policy briefing
Article

Royal Society publishes Green Ammonia policy briefing

Trevor Brown February 20, 2020

This week, the UK's Royal Society published an influential "Green Ammonia" policy briefing on ammonia as a "zero-carbon fertiliser, fuel and energy store." Rather than provide a comprehensive summary here — the Royal Society policy briefing is freely available to download — I want to focus only on four specific figures. These four illustrations repackage previously available data in valuable new ways, communicating key insights around the barriers to and opportunities for ammonia energy.

US House draft bill defines ammonia as low-carbon fuel
Article

US House draft bill defines ammonia as low-carbon fuel

Trevor Brown February 13, 2020

In January 2020, the US House of Representatives published draft legislation that explicitly defines ammonia as a "low-carbon fuel." This is a first. The CLEAN Future Act is focused on electricity generation, and aims "to build a clean and prosperous future by addressing the climate crisis, protecting the health and welfare of all Americans, and putting the Nation on the path to a net-zero greenhouse gas economy by 2050." The point isn't that this will become law — that seems unlikely anytime soon — but that a mature understanding of the potential benefits of ammonia energy has finally reached policymakers in the heart of Washington DC.