I wish there would have been a cost comparison as well. Not only to the steel for rail cars and that infrastructures maintenance, but the impacts of continued mining of coal, or drilling for oil/nat gas. Only seems fair if you’re going to examine the effects of mining for RE construction.
I think a lot of money is being spent and will continue to be spent on storage technology in this century. I’ve come across multiple sites referring to needing 5-7x installed capacity relative to needed capacity due to RE variability and vast and efficient storage is the only real way to offset that. I look forward to seeing this all happen in my lifetime.
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