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How dependent is France on Niger's uranium?
(www.lemonde.fr)
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this post was submitted on 07 Aug 2023
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@MattMastodon @Pampa @AlexisFR @Wirrvogel @Sodis
A few points to factor in:
- A nuclear power station has a much longer lifetime than batteries, solar panels, and wind turbines.
- You need not only the batteries, but also the panels/turbines to fill them.
- Conversion and storage losses are significant. Attached is a rough overview for Hโ.
- Transmission infrastructure costs to/from individual cars are significant.
- 24 h is not enough by far to balance out usual fluctuations.
@MattMastodon @Ardubal @Pampa @AlexisFR @Wirrvogel @Sodis
Batteries are great for short term storage (Hours to Days), but the further you are from the equator, the more you need seasonal storage.
Hydrogen possibly fits part of that, if it is produced by electrolysis when wind / solar are in surplus.
Problems are:
how to store it, it leaks through most storage containers, requires vast amounts of energy to liquify and
The round trip from Electricity via H2 to Electricity is very inefficient.
That's exactly what it is. Hydrogen power plants are just trojan horses for methane. Since they can burn one as well as the other, but CH4 is much more economically convenient.