With COP on right now theres a lot of talk of Hydrogen in the...

With COP on right now theres a lot of talk of Hydrogen in the news right now.
I found this from AFR interesting...
Seems different juristictions have different definitions of what is considered "Green Hydrogen"

“One of the biggest risks to the industry is that if everybody calls green hydrogen something different between countries and companies and continents, this will never become a globally traded product,” said Maarten Wetselaar, CEO of green hydrogen investor CEPSA.

Arun Sharma, the group head of sustainability at Adani, said only a strict definition of green hydrogen would unlock his company’s investments in hydrogen.

“The standard is the foundation on which you build price premium, which will drive investment decisions at scale,” he said.

Claire Behar, chief commercial officer of Hy Stor Energy, expected that the green benchmark set by the US for hydrogen producers to get tax credits under the Inflation Reduction Act would “have a ripple effect to other jurisdictions and other geographies”.

She welcomed the fact that the Green Hydrogen Organisation’s new standard also set definitions for green ammonia and green methanol.

“We need to not only have harmonisation across different geographies, but also harmonisation across different products,” she said. “As we get a globally traded industry, the standard is very important. And from a developer’s point of view, standardisation and certification needs to be a day-one priority, prior to construction.”

The US emissions threshold for the top production tax credit is 0.45 kilograms of CO₂ equivalent per kilogram of hydrogen. At the other end of the spectrum, the China Hydrogen Alliance Standard sets a benchmark of 14.5kg.

The EU has a standard of 3.4kg, but measures CO₂ emissions up to the point the hydrogen is used, rather than just up to the point of production like other standards.

The GH2 standard is 1 kilogram of CO₂ emissions per kilogram of hydrogen. This new, second iteration also has a broader set of other sustainability conditions than the previous version. One of these includes a requirement to assess and mitigate hydrogen leakage, which can contribute to global warming.

GH2 will now seek to pressure companies and governments to either adopt the standard or align with it. Fortescue Metals Group plans to use it. The federal government’s standard does not have an emissions threshold.

Mr Turnbull said his mission “was all about ensuring that we didn’t get weasel words about clean hydrogen, let alone rubbery concepts like ‘blue hydrogen’ [using carbon capture] getting into the mix”.

“The objective is not to use hydrogen, the objective is to reduce emissions,” he said.