The energy supply is transforming into a cross-sector, decentralized infrastructure service. Green hydrogen as an energy carrier and storage medium is a key element in the defossilization and decarbonization of many sectors. The production of green hydrogen in electrolysers in container and large-scale plants as well as its storage and transportation place specific demands on measurement technology, which Endress+Hauser fully covers with its products, solutions and services. These include Ex- and SIL-qualified and certified measuring devices for the required process safety, gas analyzers for measuring the purity of hydrogen via trace moisture and trace oxygen as well as the cloud-based IIoT ecosystem Netilion. In addition, Endress+Hauser offers Heartbeat Technology, a comprehensive diagnostics and device verification concept that helps to increase plant performance while reducing operating costs.