H2Pro has become the latest hydrogen start-up to spring to our attention this week, with yet another bid to slash costs and bring green hydrogen to commercial markets in the early 2020s. The Israeli, lab-based company – backed by Bill Gates among other headline names – claims to have developed a disruptive electrolysis process, which could be developed at a commercial scale in just two years, bringing green hydrogen to the market at just $2 per kg. The start-up, which was established in 2019 in Caesarea, Israel, announced on Tuesday that its inaugural funding round had secured investment worth $22 million from funds including Bill Gates’ Breakthrough Energy Ventures, Horizon Ventures, and Ignitis Foundation Fund, as well as Japan’s Sumitomo…