Advertisement
Help Keep Boards Alive. Support us by going ad free today. See here: https://subscriptions.boards.ie/.
https://www.boards.ie/group/1878-subscribers-forum

Private Group for paid up members of Boards.ie. Join the club.
Hi all, please see this major site announcement: https://www.boards.ie/discussion/2058427594/boards-ie-2026

Nuclear - future for Ireland?

1102103105107108142

Comments

  • Registered Users, Registered Users 2 Posts: 24,494 ✭✭✭✭ted1


    in English please.

    Are you suggesting we just keep burning fossil fuel. Bear in mind the the SMP will rise as we will call on the older less efficient plants

    How do we meet demand for the next 50 years. ?



  • Registered Users, Registered Users 2 Posts: 24,494 ✭✭✭✭ted1


    can you provide a link for 4GW still Seen AT least 5 GW….



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 99,542 Mod ✭✭✭✭Capt'n Midnight


    There were 76 older plants but they closed down.

    In total 224 reactors closed before they got to 60 years. Another 95 were abandoned during construction.

    There's also 31 on long term outage, and 24 under construction and behind schedule.

    That's a total of 374 that should be working now, if reactors could get to 60 years with no issues.

    BTW there's only 410 operating reactors, not counting short term outages or those running at reduced power.



  • Registered Users, Registered Users 2 Posts: 24,494 ✭✭✭✭ted1


    IMG_0817.png

    sorry I meant to say the oldest operational* plant


    ChatGPT seems to auppprt the LOCE of wind been cheaper than nuke. Nuclear also requires N+1 or N+2 depending on licence.



  • Registered Users, Registered Users 2 Posts: 16,965 ✭✭✭✭charlie14


    I could, but if you are saying you can see at least 5 GW of offshore installed capacity wind farms that were granted strike price contracts under ORESS 1 & 2 supposedly to become operational by 2030, then why will you not post who they are and what the installed capacity of each will be ???



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 24,494 ✭✭✭✭ted1


    because that’s not the strategy. The strategy says 5G. Just cause they only awarded 4G. Doesn’t change the strategy. , the others may not have been technically compliant or over priced or simply not enough applicants.

    There are others offshore wind farms in development, ORESS is only a route to market. I’m aware of others that are looking at PPAs as a route to market.

    Post edited by ted1 on


  • Registered Users, Registered Users 2 Posts: 442 ✭✭tppytoppy


    PPAs are not public infrastructure and actually undermine the scope for powering Ireland with renewable energy. PPAs are just another opportunity through Datacentres for Multinationals to rape the country. They should not be cheered on by you Ted.



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 99,542 Mod ✭✭✭✭Capt'n Midnight


    The other difference is that Wind has much shorter term contracts. Until 2025 contracts here were for 15 years from a fixed date. They don't get paid for being late. So most projects would be out of contract before nuclear could arrive so costs can't be compared.

    Contracts are now for 20 year so the only time you can compare prices is during the short period where they'd overlap.

    Whereas in the UK nuclear contracts were for 35 years. (Actually 55 years as price agreed in 2013 to ~2033, plus 35 years)

    The UK could have saved a bundle by not extending the long stop date. After 2029 the CfD is reduced in value up to 2033 - the long-stop date - after which it could be cancelled for non-completion. The long stop date is now 2036 for a plant that was supposed to be providing power by Christmas 2017.

    That was CfD , Sizewell-C is using a different funding model. Financing is the biggest cost for delayed nuclear plants. It's not a project , it's an income stream and you might as well use a dartboard to guess the overall cost. £20Bn ? - £100Bn ?

    Sizewell C’s development consent order application was approved in 2022, back when its costs were estimated to be £20bn

    . https://www.newcivilengineer.com/latest/sizewell-c-subsidy-scheme-shows-public-exposed-to-up-to-54-6bn-of-costs-28-07-2025/

    Sizewell C costs could hit £100bn including financing, modelling shows - Financial Times link.

    I'd be very afraid of what kind of contract would be signed here. Especially since the senior people would all be safely retired before the manure impacts the air circulation device.



  • Registered Users, Registered Users 2 Posts: 24,494 ✭✭✭✭ted1


    PPAs are slot better than the SEMO. Fixed price for life Not tied to oil and gas



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    On your point, yes, the study did point that out. I have no idea about the figure, once you accept that the study included many windfarms developed in the 90's and 2000's. Even the authors themselves acknowledged that.

    Studies on newer windfarms show annual declines of 0.1%-0.5% per year, on windfarms that are post 2008.
    This suggests technological improvements that minimise the declines.

    To suggest a windfarm commissioned today will experience the same average declines as those older windfarms is not true.

    https://emp.lbl.gov/sites/default/files/emp-files/wind_plant_performance_with_age_-20200520-_webinar.pdf

    As to your last bit, I have no idea what you are on about. Its comes across as quite defensive tbh.

    I presume you are pro-nuclear, so can you show me how much a plant will cost in Ireland, and the business case for such?



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    Oh, before I forget, can you give me the name of those nuclear power plants that have been running for no issues, no upgrades or retrofits for 60 years?

    After all, we don't want to be finding out people are making baseless claims they cant stack up now, do we?



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    Oh really? A lightning strike is indicative of what now?


    Do you want me to post up photos of the deformities that resulted from Chernobyl? Because there is only one winner here, if you go down that road.



  • Registered Users, Registered Users 2 Posts: 16,965 ✭✭✭✭charlie14


    You post so much absolute rubbish that you cannot even keep up with it yourself.

    First there was no hydrogen strategy. Then it was an 80/20 split. Next it became 50% of generation to domestic consumers, 20% to hydrogen generation with the remaining 30% seemingly disappearing somewhere as you had no answer as to where it was going.

    Now you are again rambling on about this strategy, which according to you didn’t exist, as if the state authorities through both the lack of this engineering knowledge according to you they supposedly learned, and the inability to get contracts for the strike price they were offering resulting in them being unable to get the this 5 GWs has in some unexplained way by you negated the strategy.

    Your rambling nonsense about PPAs has no bearing either, and added to some of your other ramblings such as the decommission of a nuclear power plant costing in excess of €100 Billion and it taking 50 years to build a nuclear power plant give the distinct impression you are a bluff who just makes crap up and then posts further crap when called on it.



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    Denmark has no Nuclear, a lot of wind and solar and has cheaper than average EU wholesale electricity…

    https://ec.europa.eu/eurostat/statistics-explained/index.php?title=Electricity_price_statistics



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    I would like to know this as well.

    It seems @charlie14 and @bored65 want to down the possibility of renewables, but will not offer an alternative solution, apart from shouting about Nuclear, as if its a silver bullet and they don't want to get into the weeds about costs associated with that, never mind our planning system, which would make Nuclear a non-runner politically.

    I say this as someone who would be pro-nuclear. I'd have no issue with it, but can someone explain to me how it's economical to throw €40-€60 Billion at a power plant?



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    That is why we need to build more, no?

    Also, the real figure is approximately 6.6 GW of renewables.



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    Seems after checking, barely any reached the 60-year life span.

    Fibs are being told.



  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    There is 7GW of wind and 2GW of solar as per eirgird all island grid

    let’s see what they doing now?

    IMG_6774.jpeg

    Oh that’s right, f all again and we having to burn gas right at time of this post for remainder and import 6% electricity



  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    UAE spent 28 billion and leapfrogged your Denmark (whom btw have almost as high consumer prices as Ireland) and now emit less co2, not sure where you decided to pull 60 billion out of, probably same place the 37 GW offshore plan in a country without offshore expertise appeared from

    delivered on time and budget by Koreans



  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    yet many keep running 50+ years with no end in sight while our offshore farms can’t last two decades without burning down



  • Advertisement
  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    Here in real world based on real data wind and solar in Ireland are just a smokescreen for burning gas, call it greenwashing if you wish

    They failed at lowering co2 compared to countries with nuclear and they failed at lowering prices instead making us one of the most expensive in world

    The wind lobby loves to make promises but the facts and real world performance (or lack of lol) speaks for itself

    If someone sold you a car that would randomly stop or throttle to walking speed forcing you to use expensive taxis (gas) to get to work you be right to say you were taken for a ride and lied to, yet that’s exactly what happened to Ireland and us blindly following Germanys failed trillion euro Energiewende which resulted in them going from and industrial powerhouse of Europe to a hollowed out economic husk begging France to balance their grid with nuclear



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 99,542 Mod ✭✭✭✭Capt'n Midnight


    https://dv.worldnuclearreport.org/#world/fleet/map/filters=startup:1954-1976

    Of the 204 reactors with first grid connection 50 years or more ago less than a quarter, 49 are still operational

    37 of them are in the USA which has closed down 41 reactors and abandoned 42 others. So in the US it's only 30% that have reached 50 years.

    I haven't bothered to check how many were offline for extended periods.

    With nuclear the deeper you dig the worse it looks.

    eg: the worlds oldest operating reactor was offline for three years during 2015-1018. (4 years , uptime 8612 hours) Since it only started commercial operation on 9th December 1969 it's really only had 52 full years of operation.

    Just to show how nuclear isn't as dependable as touted , it had 76.8% uptime in 2024. In 2025 output dropped to 50% because the River Aare was too hot. Then in September there was a failure of a high voltage line. On 13th of last month it began a ten week overhaul so it's not likely to hit 80% uptime this year.



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    Lets fact check this, shall we?

    According to the sources, Ireland has approximately 2.3GW of solar, of which approximately 750MW is rooftop solar.
    As per your dashboard, rooftop solar is not captured, but it was; you could increase the solar figure by 50%

    https://www.pv-magazine.com/2026/02/26/ireland-adds-1-gw-of-solar-in-2025/


    As to wind, we have a bit over 5GW installed at present, according to government sources.

    https://www.gov.ie/en/department-of-climate-energy-and-the-environment/press-releases/minister-obrien-highlights-irelands-significant-renewable-electricity-progress/

    So the figure is really about 7.5GW. Not 9GW as you claimed. Again, you throw out figures to try and suit your argument.

    But I figure I would like is the cost and timelines to build a Nuclear Power plant? Any guesses on that?

    You say renewable is generating **** all…

    Data shows it has generated almost 2/3rd of the energy demand for the past 24 hours.

    image.png

    You making a show of yourself in these posts tbh. I dont really have any skin in this game, came across this thread as its an interesting discussion but you are not doing the pro nuclear pov any favours imo.



  • Registered Users, Registered Users 2 Posts: 442 ✭✭tppytoppy


    Every site for wind energy in the Irish sea which goes to PPA is one less site for wind generated electricity to satisfy indigenous electricity demand and there are very few sites available in the Irish sea.



  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    You don’t even realise we have a single all island grid served by Eirgrid do you?

    Republic: 5.1GW complete as of February, 0.4GW awaiting in final stages of commissioning, and 2.5GW stuck in planning

    https://www.oireachtas.ie/en/debates/question/2026-02-24/146/

    NI: 1.4 to 1.6GW for 2025

    what’s all that wind doing at the time of this post?

    1.1 GW


    terribly unreliable technology which distracts from gas and imports being used for majority of generation

    You are making a show for yourself not knowing basic facts about our grid which can be retrieved in seconds and checked in realtime

    Right now: gas and some wind Ireland 200g co2 per kWh

    Compared to 74g in Finland and 21g in France

    Counties that embraced nuclear

    We are literally 10x worse co2 wise at this point while paying multiples in electricity bills all so the wind and gas lobby can milk the gullible paddies who can’t check basic facts



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 99,542 Mod ✭✭✭✭Capt'n Midnight


    It's not one person in one car. It's all of the people using all types of transport.

    It's not random. It's predicted 4.5 days ahead at a resolution of 15 minutes. (It's not like an automated SCRAM at a nuclear plant.) You have plenty of time to order a taxi, or get a bus or reschedule your travel (eg: demand shedding) or carpool (interconnectors) etc.

    image.png

    If we had twice our existing SNSP capabilities. Then we'd only need taxi's some of the time for some of people. The purple areas shows how little we'd need. The light green areas are how much could have been stored or exported so with more storage we wouldn't need to call a cab.



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 99,542 Mod ✭✭✭✭Capt'n Midnight


    The nuclear industry makes one promise. "this time it'll be different" and then consistently fails to deliver.



  • Registered Users, Registered Users 2 Posts: 17,428 ✭✭✭✭markodaly


    UAE spent 28 billion and leapfrogged your Denmark (whom btw have almost as high consumer prices as Ireland) 

    Two things.
    Yes, consumer prices are high in Denmark because of their taxes and excise, but as I said, their wholesale prices are in the lower ranges of EU average, and they don't have any Nuclear at all.

    In other words, a state can generate cheaper electricity by forgoing nuclear and relying on Wind.

    As to the UAE, yes they got the Koreans to build them 4 reactors for approx $24-$32 Billion.
    But a few problems remain. The reactor design is not regulated to be built in Europe and building stuff in the UAE relies on low cheap labour from south Asia. Who earn a few $ a day.

    Estimate show a similar project in Europe would cost 1.5-3 times that in UAE, and Ireland would be at least in the higher range there.

    not sure where you decided to pull 60 billion out of,

    These are the estimates I have seen, but if you have a different figure, that would show us more definitely how much a Nuclear Power plant would cost in Ireland. At the moment you have not put forward any figure, so an estimate would be nice considering you are so passionate about it. @bored65



  • Registered Users, Registered Users 2 Posts: 1,799 ✭✭✭bored65


    One can literally spend 5 minutes checking many of the links posted to learn that France and Finland and others have

    1. Cheaper electricity
    2. Much much less co2 emissions

    Than us in Ireland whom keep getting lied to while being fleeced

    earlier in thread I pointed out that it’s hilarious that one side posts facts and figures from the real world while the other side doesnt want to talk about facts and figures (or simply lie and obfuscate) and approach this engineering/economics/politics issue like some sort of a religion



  • Advertisement
  • Registered Users, Registered Users 2, Paid Member Posts: 16,049 ✭✭✭✭josip


    It's cherry picking season again I see. Here's one I picked from all of yesterday. 72% of our electricity was generate from renewables yesterday.

    image.png


Advertisement
Advertisement