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Energy is the largest OPEX by far (70-80%)... taxes second.

That's if you don't count hardware amortization - which is 80% of the cost...

That's not OPEX, that's CAPEX and tangible assets are depreicated not amortized.

Anyone who puts a local model on a GPU understands how much heat they produce.

Its amusing watching cloud AI users struggle to grasp even direct impacts of their use.