A hybrid power system comprising a fuel cell and first and second capacitance banks (130 and 132), the power system being characterized in that: the hybrid power system includes: a DC/DC converter electrically connected to the fuel cell and adapted to step up the energy which is generated by the fuel cell; a first switch electrically connected to the DC/DC converter and to the first capacitance bank; a second switch electrically connected to the DC/DC converter and to the second capacitance bank; a load electrically connected to the first switch and to the second switch; and a controller connected to the first switch and to the second switch and adapted to a) monitor charge levels of said first capacitance bank and of said second capacitance bank, b) control said first switch and said second switch in response to said charge levels; c) operate the first switch to connect the DC/DC converter to the first capacitance bank when the second switch connects the second capacitance bank to the load and d) operate the first switch to connect the DC/DC converter to the second capacitance bank when the second switch connects the first capacitance bank to the load. the hybrid power system includes: a DC/DC converter electrically connected to the fuel cell and adapted to step up the energy which is generated by the fuel cell; a first switch electrically connected to the DC/DC converter and to the first capacitance bank; a second switch electrically connected to the DC/DC converter and to the second capacitance bank; a load electrically connected to the first switch and to the second switch; and a controller connected to the first switch and to the second switch and adapted to a) monitor charge levels of said first capacitance bank and of said second capacitance bank, b) control said first switch and said second switch in response to said charge levels; c) operate the first switch to connect the DC/DC converter to the first capacitance bank when the second switch connects the second capacitance bank to the load and d) operate the first switch to connect the DC/DC converter to the second capacitance bank when the second switch connects the first capacitance bank to the load. a DC/DC converter electrically connected to the fuel cell and adapted to step up the energy which is generated by the fuel cell; a first switch electrically connected to the DC/DC converter and to the first capacitance bank; a second switch electrically connected to the DC/DC converter and to the second capacitance bank; a load electrically connected to the first switch and to the second switch; and a controller connected to the first switch and to the second switch and adapted to a) monitor charge levels of said first capacitance bank and of said second capacitance bank, b) control said first switch and said second switch in response to said charge levels; c) operate the first switch to connect the DC/DC converter to the first capacitance bank when the second switch connects the second capacitance bank to the load and d) operate the first switch to connect the DC/DC converter to the second capacitance bank when the second switch connects the first capacitance bank to the load. a) monitor charge levels of said first capacitance bank and of said second capacitance bank, b) control said first switch and said second switch in response to said charge levels; c) operate the first switch to connect the DC/DC converter to the first capacitance bank when the second switch connects the second capacitance bank to the load and d) operate the first switch to connect the DC/DC converter to the second capacitance bank when the second switch connects the first capacitance bank to the load.