There is a rising global consensus to develop mitigation measures to decarbonise the global energy supply. However, even though the International Renewable Energy Agency (IRENA) 2024 reports that global renewable power generation capacity has reached approximately 3,870 gigawatts (GW), entire industries — such as steel and chemicals — cannot be decarbonised through direct electrification. Green hydrogen could present a cleaner and more versatile alternative, capable of helping heavy industries reduce their carbon emissions. Here, we look at how two countries — Brazil and Germany — are engaging in early action in the sector and how their strategies could shape the market.