Even with sufficient subsidies, US EV industry won't beat China, especially not on cost. Do you know how silly you sound, name one manufacturing industry that China has indigenized which western countries can beat China on cost? Do you think this is the first time western governments have tried subsidies to beat Chinese manufacturing?
Most of those subsidies will end up boosting stock prices and go in the pockets of shareholders. This is a time-honored tradition in the US.
I agree that the US can't beat China on actual production cost.
But we're talking about the cost after the US government has given US battery manufacturers what will be a very large subsidy.
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Tesla 4680 Battery Pack costs are currently $109 per KWh
CATL is currently at $80 which is cheaper.
But after the US government gives Tesla $45 in subsidies, the final cost to Tesla drops from $109 to only $64.
Now the Tesla packs are effectively cheaper than CATL which is at $80
Of course, once the US battery industry has grows large enough to matter, I expect the Chinese government to give out its own battery subsidies to compete
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Also remember that most (if not all) electric cars made by legacy auto in US are sold at a loss
So these subsidies will help make EVs profitable
Eventually it all ends up with the shareholders anyway, but the US plan is to ensure it has (at a minimum), a battery supply chain which is completely separate from China in 10 years time