A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent. Fuel cells are different from batteries in that they require a continuous source of fuel and oxygen or air to sustain the chemical reaction, whereas in a battery the chemicals present in the battery react with each other to generate an electromotive force (emf). Fuel cells can produce electricity continuously for as long as these inputs are supplied.
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The famous saying “smaller is better” is not necessarily true. A more accurate statement would be that “appropriate scale is better.” This brings us to the use of microturbines and their appropriate applications. Micro turbines are not actually tiny; they are still relatively large and powerful machines. But compared to
Fuel cell technology is elegant in its simplicity. An anode, a cathode, and an electrolyte allow positively charged hydrogen ions to move between the two sides of the cell, converting chemical energy into electricity. And the only bi-product is water.
Why, then, has this form of energy storage not been widely
By Don Talend
Given that energy sustainability and energy economics are top-of-mind among business leaders, politicians, and the public these days, hydrogen fuel cells may be viewed as a savior technology. If that statement seems hyperbolic, there is plenty of statistical evidence to support the growth of fuel cell use for both stationary
Fuel cells consist of an anode, a cathode, and an electrolyte that allows positively charged hydrogen ions to move between the two sides of the cell. In doing so, these ions convert chemical energy into electricity. And the only bi-product is water.
Last week I was offered an up-close look
By Lyn Corum
Microgrids are becoming the transformative technology in today’s energy industry, and are putting many utilities on the defensive. A few utilities want to adopt or coopt the technology, depending on one’s perceptions, creating tensions among utility and industry stakeholders. The latter believe microgrid resources can best be delivered by private
By Peter Asmus
The fledgling electric utility companies that emerged after Thomas Edison opened his small Pearl Street, New York City, NY, power station in 1882 originally focused on distributed energy generation (DEG) operating within a microgrid. Edison envisioned that the electric utility industry would involve small firms generating direct current (DC) power