Powering Change with Fuel Cells in the Telecommunication Industry

Hydrogen fuel cells provide a promising new method of power generation and energy storage for both mobility and stationary power applications. Hydrogenics Corporation is currently engaged in the design, development, and demonstration of proton exchange membrane (PEM) fuel cells for a wide range of applications, including backup power for telecommunication infrastructure, data centers and other mission critical applications. Extended run backup power has been recognized as one of the early emerging PEM markets. The characteristics of PEM fuel cells offer an economical and efficient alternative to diesel generators and batteries, providing increased reliability and extend run capabilities. PEM fuel cells convert chemical energy from hydrogen and oxygen into electrical energy. As the hydrogen moves through a catalyst, called a cell, the protons and electrons are split and the electrons travel through a conductor. When the electrons return from the circuit and reconnect with the protons, they mix with oxygen, making the only by product of the electricity generating process, water and heat. Fuel cell systems include not only the fuel cell stack (where the above mentioned electrochemical conversion takes place), but also all of the balance of plant components required to optimize conditions for the reaction within the stack. These components; provide, condition, and control, both hydrogen and air flow to the stack. All of the data provided in this paper, and any references made to fuel cell systems and technology, refer to complete fuel cell power modules (stack and balance of plant components). The following paper presents the design philosophy, functionality, and technical configuration of PEM fuel cell systems for backup power extended run applications