This paper provides an initial analysis of the “Hydrogen from the Sun” project in northern Italy. The modeling and analysis work is being performed in conjunction with the International Energy Agency Hydrogen Implementing Agreement on Integrated Systems (Annex 18). A library of Matlab/Simulink component models is being used to develop the system model and evaluate the hydrogen project in terms of its economic and hydrogen production efficiencies and also provide some optimization and control strategy guidance. The hydrogen production system consists of an electrolyzer, a PV collector, and a battery, linked to both a metal hydride and a high pressure gas storage system. The hydrogen fuels a fuel cell, and the system powers an estate. The analysis shows the effect of the different system components on the overall efficiency and cost of hydrogen.