WHAT’S THE ISSUE?
For decades, hydrogen has long been hailed as a potentially revolutionary alternative to fossil fuels and is Earth’s most abundant element. Green hydrogen is produced by splitting water using electricity generated from low-carbon sources resulting in no greenhouse gas emissions. However, it’s currently an expensive process and therefore many regard blue hydrogen as the most likely first step in the hydrogen revolution. This is produced using carbon capture methods to stop the C02 released by its production being released into the atmosphere. Grey hydrogen is the current form in use but it creates a lot of emissions. For every tonne of grey hydrogen produced 10 tonnes of C02 is released into the atmosphere contributing towards global warming. Professor Michael Bradshaw tells Stephen Cole that although widespread green hydrogen use is the ultimate goal, it’s likely that most industrialised economies will use blue hydrogen first because for cost and infrastructure reasons.
MEET THE EXPERT
Professor Michael Bradshaw is Professor of Global Energy at Warwick Business School who specialises in the geo-political economy of oil and gas. He is currently the co-director of a 5-year research programme into the UK’s energy transition. He is also the author of “Global Energy Dilemmas: Energy Security, Globalisation and Climate Change.”
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