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Culture War Roundup for the week of April 10, 2023

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I caught this exchange after the previous thread had mostly closed, and I'd like to push back on the claim a little.

BinaryHobo:

I remember talk about just using the excess power to pump water up hill during the day and running it through turbines coming down at night.

Did anything ever come of that?

The_Nybbler:

The physical conditions necessary to make hydro storage practical aren't common.

(How do we do the fancy quotes with user, timestamp, and maybe a link? It'd be useful here.)

It's true that hydroelectric power sources, as in dams, have saturated the supply of naturally-occurring American sites. You need a river in a rocky valley, and there are only so many of those to go around, and once they're used up, it's very hard to create more of them.

What haven't been exhausted, and in fact what can be readily found or exploited, are height differentials in general. Hills, mountains, exhausted mines, deep valleys with no water supply, all offer significant height differentials, are naturally occurring, and can be readily built out into large-scale closed-loop pumped-hydro storage, with a closed reservoir at one extreme and a closed reservoir at the other, and a reversible turbine to generate potential energy in times of excess and power in times of deficit. Should those be exhausted, off-shore dropoffs are an enormous resource of the same, at the cost of more difficult installation and operation in every regard. And if we exhaust THOSE, water towers at sea or underground reservoirs on land can be constructed as well.

All of this, of course, is dumb and America should just take the leash off nuclear, as argued here. (I've not read it yet, but I expect it to make the points I would inline here.) That we haven't yet is a shame and a testament to our collective idiocy and Puritan hangover.

It makes no sense to pump excess power uphill and then run it it downhill because the act of elevating water also consumes energy.

  • -18

Pumped storage has been a thing for almost a century now. I leaned about it in science class as a child.

good for you

  • -24

You do understand that energy demands fluctuate throughout the day and spending energy when it's available and cheap to have it when it is in demand and expensive is important? I was taught that as a child.

I learned algebra as a child. so what. people learn different things at different ages.

  • -10

Grid load balancing is pretty fundamental to energy policy. Even ordinary people are bombarded by messaging telling them not to run appliances in the middle of the day.

?