It’s extremely difficult and expensive to store electricity on a large scale, but that’s one of the things we’ll need to do if we’re going to rely on intermittent sources to provide a significant percentage of clean electricity in the coming years.
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Sustainable Energy—Without the Hot Air, David MacKay
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We manufacture an enormous amount of materials, resulting in copious amounts of greenhouse gases, nearly a third of the 51 billion tons per year. We need to get those emissions down to zero, but it’s not an option to simply stop making things.
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