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Cake day: September 14th, 2023

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  • The supply side of power generation is coordinated by a bid system. So the cheapest sources are activated first. As demand goes up increasingly expensive forms of power generation are turned on.

    For daily and seasonal variation, this is fine. The amount of time that really expensive generation is active is only a small portion and the base rate can stay low. However, if you add a bunch of baseload without adding equivalent generation, your utility will be stuck buying at the top end of the capacity market auction. The datacenter will have negotiated a discounted rate though because constant demand is good for the utility in the long run. That leaves everyone else paying a big rate increase.

    Source: none given, but the capacity auction is a real thing, and the predicted behaviour of such a system can be reasoned.




  • Fermion@mander.xyztomemes@lemmy.worldSeasonal Enjoyment!
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    3 months ago

    Yeah. Who buys a pumpkin for it’s literal value as a food item? There’s canned pumpkin for that. Anything to do with buying a whole pumpkin is all about maintaining an experience and tradition. In that view, pumpkin carving a storebought pumpkin is the base experience, and going to the pumpkin patch is the extended experience. People can choose the level that matches their enthusiasm for fall festivities. Neither purchases are practical, but both can be worthwhile.

    I don’t see this as much different as the buying a CD vs concert ticket mockery. Concert tickets are always economically an impractical purchase vs buying a copy. People don’t go to concerts to get a good deal, and there’s just as much crap to deal with as the muddy parking lot and unsocialized animals of a pumpkin patch. People go to concerts for a specific experience that brings them joy and forms memories. Mocking that desire is silly.











  • The speed of sound in seawater is around 1500m/s or 5400 km/hr. Something tells me they won’t actually be going supersonic.

    The article shouldn’t be referencing the speed of sound without specifying the medium for the sound waves and conditions such as temperature for water or temperature and pressure for air.

    Also, the supercavitation would be incredibly noisy underwater, and at those speeds the vessel itself would produce a very loud pressure wave that would be easy to detect. So its advantage wouldn’t be in avoiding detection, it would be in moving fast enough that detection doesn’t matter because no torpedo could intercept them.