alt Hacker NewsBut you _can_ run it on 90% solar plus 10% fossil fuels to achieve 100% power availability, which is what GP and the article suggest.
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zozbot234 • today at 4:24 PM
That's not carbon neutral. You can use synthetic fuels to make it fully carbon neutral (way easier to store than the often-proposed H2) but that's really just another battery.
The issue is that to achieve that you can't just build 90% solar plus 10% fossil fuels. You would need to build 100% solar + 100% fossil fuels for the 10% of the time solar doesn't work.