It is well known that aluminium smelting needs reliable power 24/7 because of the electric arc furnace technology involved. Without continuous power, the furnace will cool and the aluminium mix will become a solid mess, which has to be pickhammered out, or the furnace scrapped. Renewables can’t deliver reliable power 24/7. That’s it…it’s not workable. The ‘Green Production Credit’ is just a disguised workaround to allow use of FF power (coal or gas) when renewables are not available. Another propaganda exercise of the ‘smoke and mirrors’ type!

Can't see the article but the credits sound like a greenwash. Batteries, wind and solar can't run a smelter for very long so 'running on renewables' must be a percentage thing. Outside of Russia nuclear power would be more expensive than what smelters can pay so perhaps the credit is a disguised subsidy.