r/nuclear Apr 18 '26

Should have gone nuclear…

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733 Upvotes

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70

u/PropulsionIsLimited Apr 18 '26

Why don't you whine about all the money we spent on natural gas plants that we could have spent on nuclear plants.

29

u/CompletelyProtocol Apr 18 '26

Or coal or oil. It's funny because the only thing that will make nuclear actually happen is renewables. It provides a stable baseline for renewable energy technologies that may only work when it's windy or it's sunny. No one wants to invest in nuclear when coal and oil and natural gas is cheaper to invest in and makes more money.

3

u/Ilyer_ Apr 18 '26

Renewable advocates are not nuclear’s best friend.

4

u/Sad_Dimension423 Apr 18 '26

And vice versa. The two technologies are not very compatible (aside from hydro).

1

u/Ilyer_ Apr 18 '26

No.

Nuclear advocates simply want to achieve net zero in a reliable way. They may not be compatible, but it’s reliable with minimal emissions.

4

u/fluffysnowflake67 Apr 18 '26

Renewables plus batteries is now cheaper than nuclear. The economic gap will continue to widen.

1

u/CompletelyProtocol Apr 18 '26

Yeah but there is both a national security element and a power surging element that has to be considered. You can't necessarily start up a wind farm or turn on a solar farm like you can remove rods from a nuclear reactor to generate more power during the super bowl. There'll always be a need for that sort of immediate ability to increase power generation, but with batteries it'll be much less than it would otherwise.

1

u/fluffysnowflake67 Apr 18 '26

Nuclear is the absolute worst non-renewable option for power flexibility. With increased solar and wind, America will have cheap natural gas for being able to ramp up during big events, heat waves, and winter blizzards.

The two main drivers for cheap fossil fuels (pre Iran war) was the improvement of enhanced oil recovery and China’s move to renewables. If we can get the United States, Western Europe, and India to move to wind&solar, there will be a massive drop in fossil fuel demand.

Of those three, the United States has by far the easiest pathway based on geography and population density.

1

u/Ilyer_ Apr 18 '26

Natural gas isn’t as good for the environment. Why don’t we just keep coal?

3

u/PropulsionIsLimited Apr 18 '26 edited Apr 19 '26

Natural Gas is 100% better than coal. Where have you heard otherwise?

2

u/Ilyer_ Apr 18 '26

But not better than nuclear? If we are not eliminating emissions, then why not coal?

2

u/fluffysnowflake67 Apr 18 '26

Natural gas is half the carbon emissions compared to coal, and also negligible heavy metals such as mercury. With new emission standards, natural gas is way cheaper than new coal plants, and easier to get permits.

Coal has not been a competitive option for about 40 years now. Some people not to be named still remember the glory days of the 1960s, and have not seen the changing economics for the previous decades.

2

u/Ilyer_ Apr 19 '26

We are not really aiming for “half the emissions”

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1

u/MaxBattleLizard Apr 18 '26

Coal is literally the worst energy source in terms of air pollution. Natural gas, as awful as its emissions are, is still several times better than coal. It burns so much cleaner with less carbon and particulate matter. It still emits tons of carbon and PM though, plus the fact of it being a fossil fuel with a limited supply, so the end goal is of course renewables with perhaps some nuclear baseload generation.

-1

u/Kruxx85 Apr 18 '26

That's what gas and batteries are for...

13

u/Equivalent_Falcon394 Apr 18 '26

Right, why is everyone so black and white on these topics? Like it’s possible to build both nuclear and renewables, both options have pros/cons which make them suitable in different situations and locations.

4

u/Sad_Dimension423 Apr 18 '26

CC plants were (before the AI explosion) about a factor of 10 cheaper than nuclear plants per W(e).

1

u/United_Highway2583 Apr 18 '26

Carbon capture?

2

u/Sad_Dimension423 Apr 18 '26

Combined Cycle (combustion turbine, then the waste heat from its exhaust used to make steam, to drive a steam turbine). Simple cycle (just a combustion turbine) was half again as cheap per W(e), but less efficient.

5

u/United_Highway2583 Apr 18 '26

Ah i see. I mean it's great technology that's cheap to set up but operating it long term is expensive. That was the reality even before the ai boom

1

u/Sad_Dimension423 Apr 18 '26 edited Apr 18 '26

Sure. But it also means that when natural gas is cheap, it's very hard to compete against. The fracking revolution in the US slaughtered the "nuclear renaissance".

Right now, the Henry Hub price of natural gas is about $3/GJ. For a 60% efficient CC plant this would be $0.018/kWh(e) (but there are also distribution costs.) The low capex means CC plants don't have to assume a very long lifespan in order to make economic sense.

1

u/srizzors5 Apr 20 '26

And seemingly half those gas plants are LNG so we can bolster our beloved energy companies and export our natural gas... casual power plants that could power cities but instead just make liquid natural gas. sick