Fuel cell systems and methods for controlling the operation of components of the fuel cell system, which may include a fuel source and a fuel cell stack. In some examples, a fuel source is adapted to provide supply fuel to a fuel cell stack at a supply pressure. The fuel cell stack produces electric...http://www.google.com.au/patents/US7985510?utm_source=gb-gplus-sharePatent US7985510 - Utilization-based fuel cell monitoring and control
