The heart of the HomeGen 7000 is a Proton Exchange Membrane (PEM) fuel cell. A PEM fuel
cell operates like a battery. It creates electricity through a reaction that combines the hydrogen
in fuel (such as natural gas or propane) and oxygen from air to produce electricity.
|Fuel cells extract hydrogen ions from hydrocarbon
fuels and combine them with oxygen to generate power.
||The output from the process includes electricity, water and heat.
Hydrogen molecules are comprised of electrons and protons. The fuel cell separates the hydrogen
molecule into protons and electrons. The protons pass through the fuel cell membrane while the electrons travel around it creating the electric current. The basic reaction occurring in the fuel cell is
H2 (hydrogen) + O2 (oxygen)= H20 (water).
|Single Fuel Cell
||Fuel Cell Stack
Several fuel cells in series creates a fuel cell stack capable of producing many kW of power.