11 March 2021 A potential game-changing green hydrogen technology developed by Israeli-based company H2Pro, which is aiming at producing green hydrogen at $US1/kg, has closed a $US22 million funding round led by Bill Gates’ Breakthrough Energy Ventures. H2Pro’s efforts to develop a water splitting device that the company claims can reach 95% efficiency and costs significantly less than an electrolyser. E-TAC, short for Electrochemical,Thermally Activated Chemical, is similar to electrolysis in that it uses electricity to split water into hydrogen and oxygen. However, unlike conventional electrolysis, hydrogen and oxygen are generated separately in different steps – an Electrochemical (E) step and a Thermally-Activated Chemical (TAC) step.