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Renewals cannot sustain industrial energy demand on their own. By all means encourage people to use renewable energy in their houses but industry requires more juice so nuclear it is. And how come it isn’t economical? We used to have way more nuclear power plants and it wasn’t economical concerns that shut them down afaik.
I think we just need to keep expanding battery farms. 3+ phase power definitely generates more heat, but that's an issue that's been solved many times in our traditional power supply systems.
It is not clear to me that this solves any environmental issues given that mining the minerals and manufacturing batteries with current chemistry and technology is horrible for the environment.
We should find a way to make clean batteries first and then I would agree with that statement.!
I want to make it clear that I don't really agree that nuclear is bad. In any shape or form fusion and fission are the two cleanest sources of energy that we have and are the sources of energy humankind will need to guarantee our survival as a species.
However, there are clean batteries. Battery is just a term for potential energy storage and things like gravity batteries and thermal batteries are feasible right now. Electrochemical batteries aren't the only type of battery that we have. Actually, they are less efficient and less reliable than the others at scale.
I know there are clean batteries but I thought they were inefficient/hard to scale? If that isn’t the case why are large scale battery farms made with lithium batteries?
I’m genuinely asking here as I thought those technologies were still in their early days.
Well, there's obviously going to be a lot of angles to that question but initial cost and the fact that large scale battery farms aren't necessarily needed right now stick out to me.
The grid as it is designed right now is capable of producing power at demand simply by spinning up more generators. There's no cost benefit (really) to generating extra power and dealing with logistics of storage while the extra power is not needed. Not at statewide scale and while the infrastructure isn't built already.
Let's for a second assume that a power company at statewide scale wasn't able to just spin up more generators to meet demand and there IS incentive to provide storage. The company looking at the market today has 2 choices. Buy batteries that provide a versatile/portable solution with no real local consequence OR spend money developing and engineering molten salt or pumped water storage.
Electrochemical batteries:
Gravity and thermal batteries: