Cryogenic Battery could be the best option to make renewables much cheaper and greener.

In our last post, we summarized how cryogenic battery works in 3 steps including Liquefying, Storing, and gasifying. During this 3-step process, ambient air by means of electricity transformed into liquid air. But we did not state how this technology helps renewable energies to turn into much greener and cheaper. So let’s get into details now.

Cryogenic battery technology is a green tech due to the fact that waste heat and exhaust gas either can be added to heat the liquid air when it gasified or can be chilled and stored to help during energy storage. This means that it has not any environmental pollutant and bad effects on the surrounding area.  

Also storing energy at low pressure makes its storage tanks less costly. In other words, in this technology tanks are insulated to keep the liquid air cold, but they’re still less expensive than room-temperature compressed air storage tanks.

The downside of this technology is its “less efficiency”. By comparison, batteries are 60 to 70% efficient, pumped hydro is 75% to 85% efficient, and compressed air energy storage is 45% efficient. Although this system is less efficient than some batteries, but it has a virtually “unlimited number of charging/discharging cycles” with no loss of capacity due to excessive depth of discharge, according to “Engineering.com”.

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Source:@Engineering & @Solar_Edition

Photo:@Solar_Edition

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