This report obtains insights from different sources to analyse how to develop hydrogen within Indonesia. It focuses on three areas as defined by MENTARI as inputs for the Ministry of Energy and Mineral Resources report: 1) Nomenclature of different hydrogen technology under international standars, 2) Projection of global hydrogen demand and market growth, and 3) Hydrogen technology improvement, costs and maturity. One of the conclusions is that a wide range of energy sources and renewable energy technologies can be used to produce hydrogen.