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Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

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Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#671
post #580
post #578

Earlier quoted context omitted.

You could disconnect from it. That's much easier said than done and probably very complicated by the occupation, but I would guess that disconnecting would reduce coal consumption and greenhouse gas emissions proportionally to power usage.

Moldavians have bigger problems that greenhouse emissions.

Greenhouse gas emissions are a larger existential threat than global war. A global nuclear war might be more catastrophic than unchecked climate change, but probably not by much.

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#672
post #68

Earlier quoted context omitted.

Got it, thanks. So, not for grid electricity, as in this discussion.

Still, in the second figure of your link, you can see how gas is more or less stable since the start in 2005, and coal + peat is being slowly replaced almost 1:1 by renewables, mainly wind as hydro is stable and solar is marginal in Ireland.

I don't see how that matters to ops comment, "Just in time for an energy crisis", implying a shift to oil from coal.

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#673

Earlier quoted context omitted.

Do you understand that https://news.ycombinator.com/item?id=47311879 is your comment? Do you understand that whether or not "China are still building coal power stations" is completely and utterly irrelevant to answering the question you asked in that comment?

What have you assumed was my original position and why is that relevant when my next rhetorical question was a follow up to being asked if I had any other questions? This is getting tedious now. The basic facts are China has something like 1200 coal powered stations and is still building more. I would not congratulate myself just because my cigarette to beer ratio was dropping if only because I was drinking alot more…

> What have you assumed was my original position

I have not assumed anything. I read https://news.ycombinator.com/item?id=47311879, which is your comment, with the first rhetorical question.

Your implied claim is that China is not shifting away from coal.

In point of fact, they are.

You repeatedly conflate two different things.

> This is getting tedious now.

Agreed. But you were the one using an obnoxious rhetorical style while being incorrect.

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#674
post #290

Earlier quoted context omitted.

The answer is you don't scale nuclear up or down, it's a silly waste of time and effort to even think about it. The fuel costs are effectively a rounding error, so running at 100% 24x7 is the only way to ever think about how nuclear should operate. If you are going to curtail, you curtail other sources including solar and wind. Nuclear fits quite well for the baseload you need. It's more expensive, but if you are goi…

That’s not the way the energy market works though. The cheapest sources (like daytime solar) will knock your expensive nuclear off the grid. Or force it to sell at significantly below operating cost, which is suicidal in the long term, since nukes need a guaranteed high price nearly 100% of the time to pencil out (pay back the capex). Your argument only works in entirely state controlled systems, not in free energy m…

> Which is why nukes don’t get built.

Nukes don't get built because:

- billions (if not trillions) of subsidies were poured into wind and solar over decades to make them viable while nuclear energy was addled with additional taxes, reactor closures, and very few new reactor licenses

- decades of fear-mongering led to loss of expertise in building new nuclear power plants (and instead South-East Asia has been picking up speed in building new reactors) [1]

In 2015 nuclear was significantly cheaper than most other types of energy across most markets: https://world-nuclear.org/images/articles/REPORT_Economics_R... (Figure 12, in some markets including the then-emerging renewables). And yet renewables were enjoying unprecedented amounts of subsidies and money poured into them while nuclear... Oh we know what was happening to nuclear, just look at Germany.

[1] Here's EU's own report: https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=COM:2025...

Renewables: 80-80 billion euro in subsidies a year.

Fossil fuels: 60-140 billion euro in subsidies a year.

Nuclear: good luck finding the thin orange line in the graph. (1% of subsidies)

--- start quote ---

As shown on Figure 4 , solar energy received by far the largest share of subsidies, both historically and in 2023 (EUR 21 bn), followed by biomass (EUR 9 bn) and wind power (EUR 7 bn). Hydropower received marginal financial support (~EUR 1 bn), while subsidies targeting multiple renewable technologies (such as tax reductions on green technology or public aid for investment projects) jumped to EUR 23 bn by 2023.

Subsidies for nuclear energy dropped from EUR 7.9 bn in 2021 to 3.7 bn in 2022 and 4.1 bn in 2023. Of the 14 MS providing nuclear subsidies, France (EUR 2.9 bn) accounted for the biggest share, followed by Germany (EUR 0.8 bn) , Spain and Belgium (EUR 0.1 bn each).

--- end quote ---

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#675
post #674

Earlier quoted context omitted.

That’s not the way the energy market works though. The cheapest sources (like daytime solar) will knock your expensive nuclear off the grid. Or force it to sell at significantly below operating cost, which is suicidal in the long term, since nukes need a guaranteed high price nearly 100% of the time to pencil out (pay back the capex). Your argument only works in entirely state controlled systems, not in free energy m…

> Which is why nukes don’t get built. Nukes don't get built because: - billions (if not trillions) of subsidies were poured into wind and solar over decades to make them viable while nuclear energy was addled with additional taxes, reactor closures, and very few new reactor licenses - decades of fear-mongering led to loss of expertise in building new nuclear power plants (and instead South-East Asia has been picking…

Also corruption. I lived in an area that for some years was trying to build a new nuclear power plant.

It was fraud from the top down and the manufacturer went bankrupt. I paid more for power in SC than I ever did when I lived in “summer all year” Florida. But I guess I got a token check in the mail some years later.

Plant got completely abandoned and I got to help subsidize this failure.

https://en.wikipedia.org/wiki/Nukegate_scandal

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#676
post #536

Earlier quoted context omitted.

So, in both cases it's helping sustain. "Ramping up" means increasing . Is there something I'm missing here?

[flagged]

We've banned this account for continually posting comments like this that are unsubstantive and clearly in breach of the guidelines and HN's intended use.

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#677
post #555

Earlier quoted context omitted.

We've banned this account.

Cool, but late. There are tens of similar accounts active right now, and they are only banned after repeatedly and continously stepping over the line. Most of those accounts don't participate in good faith from day 1, but it takes 60-90 days for them to get banned. I don't know what to do about it, but it's a problem on HN for quite some time.

Please email us when you see them!

hn@ycombinator.com

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#678
post #674

Earlier quoted context omitted.

> Which is why nukes don’t get built. Nukes don't get built because: - billions (if not trillions) of subsidies were poured into wind and solar over decades to make them viable while nuclear energy was addled with additional taxes, reactor closures, and very few new reactor licenses - decades of fear-mongering led to loss of expertise in building new nuclear power plants (and instead South-East Asia has been picking…

Also corruption. I lived in an area that for some years was trying to build a new nuclear power plant. It was fraud from the top down and the manufacturer went bankrupt. I paid more for power in SC than I ever did when I lived in “summer all year” Florida. But I guess I got a token check in the mail some years later. Plant got completely abandoned and I got to help subsidize this failure. https://en.wikipedia.org/wik…

Oh yes. That too. It's one problem after another in quite a few countries: ignore/neglect, make processes, regulations and subsidies opaque, all of this leads to huge construction times and corruption, declare nuclear non-viable.

China: "Nearly every Chinese nuclear project that has entered service since 2010 has achieved construction in 7 years or less." [1] Building over 40 reactors since 2005

[1] https://thebreakthrough.org/issues/energy/chinas-impressive-...

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#679
post #407

Earlier quoted context omitted.

> 5% per minute is not extremely fast. 5% of nameplate capacity . > You'd think it means "changing the power output from moment to moment to match electricity demand" but for nuclear plants it means "changing from one pre-planned constant level to another pre-planned constant level, up to four times per day" Which is clearly invalidated by the very source I provided, and which you then somehow quote back at me. > "th…

Gas turbines do 16% of nameplate capacity per minute without catching a sweat. 5% per minute isn't particularly extreme. --- Let me quote page 10 of your source "In brief, most of the modern light water nuclear reactors are capable (by design) to operate in a load following mode, i.e. to change their power level once or twice per day in the range of 100% to 50% (or even lower) of the rated power, with a ramp rate of…

> Gas turbines do 16% of nameplate capacity per minute without catching a sweat. 5% per minute isn't particularly extreme.

If you keep jumping around with your arguments, nothing is extreme.

Your original claim started with claiming cold starts (which most power plants including gas turbines don't do, ever) and that coal and nuclear aren't fast.

Nuclear is plenty fast.

I never claimed gas power stations were slow, or that they were slower than nuclear.

> If you look at table 2.4 on the same page it states that it (the Russian VVER-1200) can do the 5% per second/20% per minute emergency change

Let me slowly walk you through that statement:

--- start quote ---

can do the 5% per second/20% per minute emergency change

emergency change

emergency

--- end quote ---

> And that was the point of my footnote: that nuclear plants technically can go faster than 5% but not up and down on a minute-by-minute basis.

No idea what your footnote was about, and how it is relevant.

Re: Ireland shuts last coal plant, becomes 15th coal-free country in Europe (2025)

#680

Earlier quoted context omitted.

> I'd add that this is only part of the equation because: what do you do on an overcast day with no wind? Battery technology is really, really getting there. And in the absence of any more improvements here (unlikely) you integrate your grids with other countries. That's harder for Ireland, but it's still worth doing.

Does this battery technology grow on trees in Ireland, or does it exist in a foreign (and perhaps one day adversial) nation, like China? The sheer number of people in this thread saying, "we need renewables to be independent!", from countries that don't actually manufacture anything, is astonishing.

Is Ireland going to burn the batteries after they buy them from China? If China says "Do what we say, or else no more batteries" then...nothing bad happens. Ireland's batteries continue to work.

Coal or gas on the other hand...anyone can cut off Ireland anytime.

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