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0 pointsWalterBright4y ago0 comments

> Most people

That still leaves billions of people. What's your solution? Rolling blackouts?

> those places

Many multi-unit buildings have central heating. Which means central thermal mass "batteries" are more cost-effective on a per-unit basis.

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4 comments · 2 top-level

bryans4y ago· 2 in thread

Walter, you are making up science in your head that does not actually exist. I would highly encourage you to do some actual research before you continue to make these incredibly uninformed comments.

https://news.ycombinator.com/item?id=29186001

WalterBrightOP4y ago

> Because it takes 3-5x as much energy to heat rock than water

And 100% of that energy gets recovered as it slowly returns to ambient temperature.

You're confusing heat with temperature.

> you are making up science in your head that does not actually exist

You should be careful about making such statements. You're quite wrong. The heat going into the rock will be 100% returned. All of it. Where do you imagine it will go?

bryans4y ago

No, Walter, you're confusing energy with temperature. If it takes 1 kWh of electricity to increase the temperature of water by 1 unit (thereby releasing 1 unit of heat to the atmosphere), it takes 3-5 kWh of electricity to increase the temperature of a rock by 1 unit. That's called inefficiency.

I'm done trying to explain 6th grade Earth science to you. You're either trolling or extremely unwilling to accept reality, so unless you have actual evidence for any of your claims, please stop pretending that you're some super genius who knows better than every scientist and engineer on the planet.

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lambdadmitry4y ago

Same as Macron's: spending time and effort on reliable generation (i.e. nuclear) instead of wasting it on feel-good drop-in-a-bucket non-solutions. Every single one of those houses can be cooled or heated up if you have energy available on request, no need for massive piles of rocks here and there

It also means more thermal losses and huge thermal masses required to make any difference.

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