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Using Trains and Gravity for Energy Storage

Grid scale energy systems, especially those with renewable energy inputs, need storage.

They need better and cleaner and more efficient storage solutions, and one company believes the answer lies in electric trains and gravity.

The most common way to store energy on a grid scale is through using “pumped” hydropower, where the off-peak energy is stored as water pumped to a higher elevation, which can then be released to produce electricity as gravity pulls it down to a lower elevation again.

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