The concrete blocks are slowly hoisted upwards by motors powered with electricity from the Swiss power grid. As each block descends, the motors that lift the blocks start spinning in reverse, generating electricity that courses through the thick cables running down the side of the crane and onto the power grid. In the 30 seconds during which the blocks are descending, each one generates about one megawatt of electricity: enough to power roughly 1,000 homes.

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Did you read the article? The concrete block is supposed to be reused for a long period of time, that’s why the guy said it’s a long term return project.

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Did you read the article?

Yes, did you? Did you also form your own opinion based solely on the article?

How long is the period of time? How long does it take for concrete to actually be affected by weather conditions?

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