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Trains are linear. Tractors and harvesters are areal.

You square the delivery line requirement.

A 1,000 km electric traction rail line needs 1,000 km of cable. (Or 2,000 km for a two-tracked system.)

A 1,000 km * 1,000 km area of farmland with power gridded every 100m has 10k * 10k or 100,000,000 km of delivery cable.




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