The EU Commission has presented a delegated act setting out the criteria for the production of green hydrogen. Accordingly, the electricity must be generated until 2029 in the same month as the hydrogen, from 2030 in the same hour. From 2028, electricity for green hydrogen should also come exclusively from renewable sources that are less than 36 months old and have not been publicly subsidized. In addition, electricity and hydrogen must usually be produced in the same electricity bidding zone.While initial electricity demand for hydrogen production will be negligible, it will increase towards 2030 with the mass rollout of large-scale electrolysers. The Commission estimates that around 500 TWh of renewable electricity is needed to meet the 2030 ambition in REPowerEU of producing 10 million tonnes of RFNBOs. The 10Mt ambition in 2030 corresponds to 14% of total EU electricity consumption. This ambition is reflected in the Commission proposal to increase the 2030 target for renewables to 45%.The Delegated Act sets out different ways in which producers can demonstrate that the renewable electricity used for hydrogen production complies with additionality rules. It further introduces criteria aimed to ensure that renewable hydrogen is only produced when and where sufficient renewable energy is available (known as temporal and geographic correlation).