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phiretoday at 2:32 AM2 repliesview on HN

If the goal is 100% carbon-free energy, then we simply can't let economics get in the way. Otherwise we will always be stuck building some natural gas peaker plants.

And one option is to mass produce nuclear power plants, get prices down even further via economics of scale and then run them uneconomically.

Uneconomically doesn't mean "at a loss", just that you aren't making as much profit as you could optimally. With enough economics of scale, we can probably still run these nuclear plants at a profit, maybe even cheaper than natural gas peakers. But it doesn't matter, the goal is saving the planet, not profit.

It's not the only option, you can also build massive amounts of wind/solar/tidal and pair them with massive amounts of battery storage.

The third option is to build way more hydro power plants. Hydro tends to get overlooked as a form of green energy, because while it might be 100% renewable, you do have to "modify" a local ecosystem to construct a new dam. But hydro has the massive advantage that it can work as both baseload and demand load, so they can pair nicely with wind/solar/tidal.

I'm not even talking about pumped hydro (though, that's a fourth option to consider). Regular hydro can work as energy storage by simply turning the turbines off at letting the lakes fill up whenever there is sufficient power from your other sources.


Replies

gpmtoday at 3:01 AM

Yeah, I'm just arguing that "baseload" should be understood to be a bad thing in my comment above.

If you want to argue that nuclear is affordable as non-baseload power, because the (non-economic) cost to the environment of the alternatives is otherwise too high.... well I'd disagree because of how far solar/wind/batteries have come in the last couple of years, but prior to that you would have had a point. And you still would as far as continuing to operate existing plants goes of course.

pastoday at 7:34 AM

... voters (or however we want to handwave preference aggregation) are very passive about carbon-free energy (and global warming and sustainability and economics and ...)

they either pick some pet peeves (coral reefs, rainforests, global South inequality, desertification) and usually start buying things (EVs, PV panels, heat pumps)

but when it comes to policy they usually revert to Greenpeace/degrowth/NIMBY cult members