A computer model is developed which evaluates the economics of offshore wind-power systems and simulates the behavior of alternate designs. Wind-powered generators either satisfy consumer demand directly or produce hydrogen by the electrolysis of water. The hydrogen can be later transformed back into electricity by fuel cells. Using the characteristics of the system components as input parameters, the model simulates system performance over time using historical or computer generated wind-speed and demand data. Various statistics associated with the energy produced and costs are used to evaluate and compare alternative systems.