Wind and solar power supply for EMP protected critical infrastructures

This paper describes a portable modular electric supply system developed to power mission critical infrastructures when the power grid becomes unavailable for a long time due to an electromagnetic pulse (EMP) produced by natural or man-made causes. The generation part of the supply system contains a small wind turbine and a PV array. Energy is stored in a battery bank to compensate short-term variations of sun light and wind speed. Hydrogen storage is used for long-term energy storage to provide continuous power despite seasonal variations of wind and solar sources.