Platform

There are several different fuel cell technologies.

Proton Exchange Membrane

Plug Power manufactures proton exchange membrane (PEM) fuel cells. Our GenDrive and low-temperature GenSys fuel cell systems utilize low-temperature (60°-160°C) PEM technology, which features high power density, variable power output to meet sudden shifts in demand, and quick startup.

High-temperature PEM technology is similar to the low-temperature technology, but it operates between 160°C-180°C, producing high-quality heat during the electrochemical energy conversion process. Plug Power is developing a grid-parallel, high-temperature system that is compatible with existing home systems. It can meet the heating demands in residential and light commercial applications, while supplementing power requirements in order to lower dependence on the grid.

Other types of fuel cell technology include:

Phosphoric Acid Fuel Cells (PAFC)

Phosphoric acid fuel cells have been field tested as early as the 1970s. These systems operate at temperatures between 150°C and 200°C. The principal use of these systems has been for mid-sized (200kW) stationary power generation applications.

Molten Carbonate Fuel Cells (MCFC)

Molten carbonate fuel cells operate at very high temperatures (600-700°C) that allow them to use fuel directly with a simplified fuel processor. They require significant time to reach operating temperature and to respond to changes in electricity demand, and therefore are best suited for the provision of constant power in large utility applications.

Solid Oxide Fuel Cells (SOFC)

Solid oxide fuel cells operate at extremely high temperatures (700-1000°C). As a result, they can tolerate relatively impure fuels. Their simple design combined with the significant time required to reach operating temperature and to respond to changes in electricity demand make them suitable for large to very large stationary power applications.