To make solar power viable, we need a solution for overnight energy storage.
Batteries are complicated.
Do you know what isn’t? Water go up. 
To make solar power viable, we need a solution for overnight energy storage.
Batteries are complicated.
Do you know what isn’t? Water go up.
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I saw that on James Bond
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I found a YouTube link in your comment. Here are links to the same video on alternative frontends that protect your privacy: