Nano-sized silicon reacts rapidly with most water solutions to form pure hydrogen. However, high costlow availability are major issue. Our group has developed novel nano-sized silicon mass-production process, greatly improves its feasibilitycost for hydrogen generation. The in-time hydrogen generation by nano-size silicon, fuel-cell systemlithium ion battery system are all well integrated into one portable power system, which can satisfy general personnel electricity demand for some special conditions, such as battle field, emergency caseremote regions.