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Comment by rgmerk

6 hours ago

To be fair, you end up needing insane amounts of batteries if you want to run 24/7/365 just on solar, particularly if you insist on building your data centres in places with dark winters.

Wind is better than solar in many places and somewhat reduces the need for batteries

  • From ERCOT's stats- wind is complimentary. But, I can't find any hard data on intraday/hourly power usage for AI it seems reasonable to assume that night time use will be lower though.

    And so it doesn't have to be looked up: Wind seems to peak at dawn/dusk when solar is not delivery much power, solar peaks in line with air-conditioning load, and there's a miniscule amount of grid scale battery to hold up the grid during a short gap between solar and wind. The batteries are recharged with solar. At least that was the pattern this summer- I need to check now that it's winter.