Comment by jillesvangurp

They need some local buffers batteries, and some fallback power generation via the grid. But it benefits them if they can run on cheap renewables most of the time. And of course steel production processes can be adapted to be more flexible as well. Current steel production isn't optimized but when the choice is between shutting down for a few days or falling back to some relatively expensive power source, shutting down might be the more economical option. The idea behind flexible pricing is that large consumers of energy can optimize for that with batteries and storage. Charge when it's cheap, discharge when it isn't. Sell power when it gets really expensive.