Comments by "Simon" (@Simon-dm8zv) on "How to fix clean energy’s storage problem" video.

  1.  @PrinceOfSilla  Correct. LFP is great.
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  2. Inefficient.
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  3. Inefficient
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  4. It is very inefficient.
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  5. Yes, but roundtrip efficiency of ~50% is still quite bad. You also need energy for compression.
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  6. Not efficient enough, especially for vehicles.
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  7.  @righthoekstra  In case of stationary storage it is about 50%. In case of vehicles max 30%.
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  8. LFP is lithium ion.
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  9. That would be considered perpetual motion and is not possible.
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  10. You mean hydrogen. Well because it is inefficient.
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  11. LFP is a type of lithium ion.
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  12. Sure, but it is inefficient.
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  13.  @rocko44444444  Because the volumetric energy density is very low and because electrolyzers and fuel cells are inefficient.
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  14. Check the density of concrete and that of water.
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  15.  @calciumkid0568  It would require a lot more space and height.
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  16.  @calciumkid0568  Yeah, but both water and sand would require a lot lot of supporting structure around each unit to contain the medium and support all the other units. Probably made of steel, which is expensive and carbon intensive.
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  17.  @calciumkid0568  If the units are stacked they would simply burst under the weight.
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  18. It is an option but rather inefficient.
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  19. In case of gas: less than 50% in stationary applications.
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  20. Solid state batteries are also lithium ion. Also, we don’t need solid state batteries for stationary storage. Cheaper, less energy dense chemistries like LFP are great for that.
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  21.  @shutinalley  yes, that is a nice goal
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  22.  @shutinalley  Yup :(
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  23. Very inefficient.
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  24. Well it is less efficient than most other solutions.
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