In a recent episode of the Net Hero Podcast, scientist Ali Al-Sikab from the National Physical Laboratory (NPL) discussed the pivotal role of hydrogen in a net zero future. Al-Sikab highlighted the common misconception that hydrogen is solely for combustion fuel, emphasizing its significance in generating electricity. The UK is projected to rely on hydrogen for a substantial portion of its electricity consumption by 2050, aiming for 20-35%. This transition involves shifting from grey to green hydrogen, particularly in industries and heavy-duty transport where batteries alone are not sufficient. While green hydrogen production is currently more expensive than grey hydrogen, efforts are underway to make it cost competitive. NPL is focused on standardizing electrolyser technology to enhance its efficiency and durability. By improving intercomparison between different materials and components, the goal is to de-risk investments and expedite the journey to net zero. The initiative also aims to reduce the reliance on carbon-emitting processes by promoting the adoption of green hydrogen. Through these efforts, NPL seeks to pave the way for a cleaner, more sustainable energy future. The article invites readers to watch the full podcast episode for more insights and encourages participation in the Big Zero Show Online: 100 Days of Labour.