The Most Ethical Renewable Energy Systems

The main thing in renewable energy systems is the embodied energy: the energy over the lifetime of the product versus the energy of manufacturing it. Lithium batteries are used a lot because they are lightweight, but they don’t last. Lead-acid batteries, like car batteries, are also short-lived. An old technology, the nickel-iron battery, lasts a long time. Lithium batteries are great when there might be a space or weight issue, […]

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