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The highest yield current mining and enriching processes beat that by about a factor of 10; there are a few sites globally that achieve that, Canada would be the most relevant.

Don't forget that only the high density fuel needs to be shipped long distance as well...

For a fully reliable 1gw of wind, that's something like 600 turbines (to simply), each turbine lasts about 20 years, and weighs about 200 tonnes. So about 5000 tonnes of finished wind turbine a year, with an equivalent waste stream.