For hydrogen to be truly ‘clean’ it must be made with renewables, not coal

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Using hydrogen as a clean fuel is an idea whose time may be coming. For Australia, producing hydrogen is alluring: it could create a lucrative new domestic industry and help the world achieve a carbon-free future.

The national hydrogen strategy released last month argues Australia should be at the forefront of the global hydrogen race. Led by Chief Scientist Alan Finkel, the strategy takes a technology-neutral approach, by not favouring any one way of making “clean” hydrogen.

But it matters whether hydrogen is produced from renewable electricity or fossil fuels. While the fossil fuel route is currently cheaper, it could end up emitting substantial amounts of carbon dioxide.