About Fuel cells and energy storage
A fuel cell-based energy storage system allows separation of power conversion and energy storage functions enabling each function to be individually optimized for performance, cost or other installation factors.
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About Fuel cells and energy storage video introduction
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6 FAQs about [Fuel cells and energy storage]
What is a fuel cell based energy storage system?
A fuel cell-based energy storage system allows separation of power conversion and energy storage functions enabling each function to be individually optimized for performance, cost or other installation factors. This ability to separately optimize each element of an energy storage system can provide significant benefits for many applications.
Can a fuel cell be used as an energy storage device?
When used as an energy storage device, the fuel cell is combined with a fuel generation device, commonly an electrolyzer, to create a Regenerative Fuel Cell (RFC) system, which can convert electrical energy to a storable fuel and then use this fuel in a fuel cell reaction to provide electricity when needed.
Are hydrogen based fuel cells a good storage option?
Hydrogen based technologies can be developed as an attractive storage option for longer storage durations. But, common polymer electrolyte membrane (PEM) electrolyzers and fuel cells have round-trip system efficiencies of only 30–40%, and platinum and rare iridium catalysts are needed.
What are fuel cells used for?
Many uses of fuel cells place a premium on specific performance characteristics. The relatively simple alkaline fuel cells (AFC) will continue to be used in space applications, where high energy densities and cryogenic storage of hydrogen and oxygen represent a cost savings by lowering the weight of the launch vehicle.
How do fuel cells work?
Fuel cells are electrochemical devices that convert chemical energy into electrical energy through a controlled redox reaction. They are distinct from batteries in that they require a continuous supply of fuel and oxidant (usually oxygen) to operate, while batteries store their energy internally.
What are the benefits of fuel cells?
Fuel cells offer the cleanest power generation possible. They are quiet in operation and can be located close to the application. They produce much less greenhouse emissions and can be more efficient in conversion of the energy in a fuel into power than gasoline engines or utility thermal power plants.


