Tag: NLLSF

Alkaline Electrolyzers – The Future needs a Metamorphosis

by Ishaan Goel The second article in this series on water electrolyzers focused on polymer electrolyte membrane electrolyzers (PEMEs). PEMEs have increasingly captured the interest of industry over recent years, due to favorable technical characteristics. Despite this, the global electrolyzer market today is dominated by a much older model - alkaline electrolyzers (ALKEs). (For details of how both electrolyzers work, refer to the first article in the series). The graph above shows the investment costs ($/kW) of ALKEs and PEMEs as the technology has advanced over time. In other words, they show the initial capital cost for every 1 kW of...

Introduction to Electrolyzer Technologies

by Ishaan Goel Hydrogen has become increasingly prominent as a potential carbon-free fuel, for both automobiles and providing electricity to buildings. It has direct applications in decarbonizing important industries like steel, and can serve as a storage medium for extra renewable energy over seasonal durations too.   Since hydrogen gas does not occur naturally in our atmosphere, its method of production is an essential component of the hydrogen economy. There are several such methods (discussed in detail here), but the one with least emissions involves using renewable power to run electrolyzers - devices that use electricity to convert water into hydrogen and...
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