The StaR – Stack Revolution collaborative project has achieved significant scientific and technical progress towards the industrialisation of alkaline water electrolysis. The focus was on the model- and experiment-based design of a production- and cost-oriented cell and stack concept, which forms the basis for scalable series production up to the gigawatt scale. Through the close integration of material characterisation, cell and stack design, operational and modelling work, and ecological-economic assessment, EST was able to systematically contribute to and validate the technical performance, manufacturability and economic viability of the StaR concept.