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Olduvai III: Catacylsm
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Is large-scale energy storage dead?

Is large-scale energy storage dead? Many countries have committed to filling large percentages of their future electricity demand with intermittent renewable energy, and to do so they will need long-term energy storage in the terawatt-hours range. But the modules they are now installing store only megawatt-hours of energy. Why are they doing this? This post […]

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Who Killed the Electric Car?

Who Killed the Electric Car? [ Who cares about electric CARS?  Civilization ends when trucks stop running, and trucks can’t run on batteries because they’re too heavy (93% of the cargo weight, 25% of the cargo space), and an all-electric truck fleet would require thousands of new power plants, mostly running on finite fossil fuels. Although Wall […]

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For Storing Electricity, Utilities Are Turning to Pumped Hydro

For Storing Electricity, Utilities Are Turning to Pumped Hydro High-tech batteries may be garnering the headlines. But utilities from Spain to China are increasingly relying on pumped storage hydroelectricity – first used in the 1890s – to overcome the intermittent nature of wind and solar power.  In the past decade, wind energy production has soared in […]

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Olduvai IV: Courage
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Olduvai II: Exodus
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