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Energy infrastructure

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Comments

  • Registered Users, Registered Users 2 Posts: 21,872 ✭✭✭✭cnocbui


    I don't think a lot of EU countries are on track, except for France, which exceeded the 2050 target, let alone the 2030 target, in at least 2023 and perhaps earlier.

    The baseline is 1990. In 2024 a 37% reduction had been achieved. So that's fractionally more than 1% reduction per annum. To hit the 2030 target that rate from 2024 would have to be at lest 3% per annum for the remaining six years.

    https://op.europa.eu/en/publication-detail/-/publication/2d756cf5-c4f4-11f0-8da2-01aa75ed71a1/language-en

    EU CO2 target gap 2030.jpg


  • Moderators, Science, Health & Environment Moderators Posts: 20,712 Mod ✭✭✭✭Sam Russell


    Is domestic solar even counted?

    The FIT might be, but home use probably not since it is hard to quantify. There has been a significant uptake of it in recent times.



  • Registered Users, Registered Users 2 Posts: 24,105 ✭✭✭✭ted1


    maths are wrong. The night demand night can be 2.5GW, last night it was 3.5GW. The peak was less tha 6GW. So your base Load 6GW is off


    There probably close to 2 GW of solar connected to the grid already. So you could be looking at 10% of supply. I think the published truly is 4% but that excludes domestic generation for self consumption

    We are transitioning to heat pumps and EV so our load has increased but our carbon emissions are also reducing as a result



  • Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 98,118 Mod ✭✭✭✭Capt'n Midnight


    image.png

    https://gridwatch.co.uk/solar/percent in the UK.

    While Solar is seasonal, demand is usually lower in the warmer months and higher during daylight hours so Solar displaces a lot of expensive peaking plant for half the year.

    image.png

    https://gridwatch.co.uk/ocgt/percent

    image.png

    https://gridwatch.co.uk/Pumped_Hydro/percent



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Thanks ted1, so taking an average daily demand of 3.6GW that 700MW of commercial solar would equate to 2.1% of 2025 demand.

    Would it be reasonable to assume that new domestic solar capacity in 2026 would be similar? And total new solar in 2026 will be able to meet 4-4.5% of demand?

    Is demand expected to increase/decrease/remain static in 2026? If it continues to trend upwards as it has in recent years, 3.64GW (2024), 3.49GW (2023), 3.37GW (2022) will that 4-4.5% increase be consumed by new demand?

    It still looks like we are treading water until the Celtic interconnector becomes operational and again until offshore wind in the Irish sea is energised in the 30s.



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  • Registered Users, Registered Users 2 Posts: 924 ✭✭✭bored65


    it’s worth pointing out that that particular interconnector which is now years late and over budget on a scale similar to Children’s Hospital fiasco doesn’t actually generate electricity

    It permits us to buy French electricity if they have some to sell at market prices and selling to us doesn’t put their own grid at risk (see what happened to Spain)

    It also permits us to sell but the French have plenty of electricity as is which is greener and cheaper

    Up to about 9% of our peak demand if this is ever completed at the new date



  • Registered Users, Registered Users 2, Paid Member Posts: 8,154 ✭✭✭BKtje


    The interconnector connects Ireland to the EU's integrated electricity market, not just France. France exports to multiple neighbors, so Irish excess wouldn't necessarily serve French demand, it flows where the market needs it. (France or elsewhere in Europe)



  • Registered Users, Registered Users 2 Posts: 924 ✭✭✭bored65


    Agree what I was trying to point out is that it’s interconnection (ability to tap into French surpluses) not power generation capacity

    Beside being way overdue (as is fashionable with projects in this country) it’s also expensive and price keeps going up for 700mw 575km project at 1.6 billion euro

    Compare that to 2000mw 1208km project at 3.5 billion which is gonna be operational before the Irish one at this rate

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



  • Registered Users, Registered Users 2 Posts: 24,105 ✭✭✭✭ted1


    this is a great tool , showing most power plant, interconnectors and transmission lines areound the world.

    Open Infrastructure Map



  • Registered Users, Registered Users 2 Posts: 24,105 ✭✭✭✭ted1


    the Celtic interconnector won't make a huge difference.

    As well as solar we are are still adding Onshore Wind, replacing older, dirtier fossil fuel plants withe cleaner more efficient Gas plants. its all adds to reducing our carbon emissions, but until Tonn Nua and the other big offshore wind projects start pumping out the MWH we wont be near any of our targets.



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  • Registered Users, Registered Users 2 Posts: 1,671 ✭✭✭Busman Paddy Lasty


    This isn't a point at all. And it is not worth pointing out.



  • Registered Users, Registered Users 2 Posts: 924 ✭✭✭bored65


    In a thread about energy infrastructure it’s not worth discussing the most expensive piece of energy infrastructure that’s over budget and behind its construction timeline

    A project that doesn’t generate a watt of energy (actually loses energy due to physics) and whose aim is to somewhat connect 9% of our grid needs to European mainland grid, when/if that grid has surplus to sell

    I got that right?



  • Registered Users, Registered Users 2 Posts: 1,671 ✭✭✭Busman Paddy Lasty


    Of course we can talk about many forms of energy infrastructure.

    Saying cables don't generate a watt of electricity as some sort of point of argument is what I was referring to. It is inappropriate fallacy. A coal fired plant or a zero CO2 nuclear plant need grid connection that doesn't generate a watt of electricity.



  • Registered Users, Registered Users 2 Posts: 245 ✭✭millb


    Not so smooth on that one - only part way there …

    The project was paused by the Greek government in March 2025 after payments to French cable maker Nexans were frozen, and the Italian research ship returned to Italy. This was following objections by Turkey which sent five warships to the research area in July 2024 to prevent research continuing. It is now possible the project may be cancelled due to Turkish pressure.

    [95][24]

     Despite this, an undersea cable connecting the Greek mainland to Crete was completed in May 2025, with a decision on progress beyond Crete due in 2026.

    [96]



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Won't the Celtic Interconnector allow us to move 10% "off books" since it's generated in France and has to be accounted for there?

    When will the new synchronous condensers be on the grip and what will the SNSP be then?



  • Registered Users, Registered Users 2 Posts: 245 ✭✭millb


    There is now a major second SynCon running almost 24x7 in the midlands. Similar if not bigger than than the Moneypoint one. Should allow an extra 5% …. - some Static Synchronous Compensators (STATCOM) are also active.

    AFAIK and it seems logical that Moneypoint coal and oil is now a non-market "strategic" generator - eg available for no-wind / no-import situations.

    Again I don't know why we don't expand Corrib Gas to give strategic "cleaner than LNG / oil & coal" reserves.



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    The withdrawl of Orsted from Hornsea 4 has been mentioned a lot by posters here.

    Hopefully this about face turns out to be for real. Article is originally paywalled in the Telegraph.

    Energy powerhouse restarts wind project following Miliband’s £1.8bn subsidy surge | Bitget News https://share.google/HbeoWbeWJVfQHkjEQ



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Fair play to the Farmer's journal; a detailed listing of recent solar project activity including acreage as well as MW, which as a rural lad, I find useful.

    https://www.farmersjournal.ie/more/renewables/solar-pipeline-hits-nearly-4-000ac-in-january-902881

    The frequency of articles in their renewables section is a good indicator of how relevant renewables are now to many farmers.

    https://www.farmersjournal.ie/farm/renewables/9999647



  • Registered Users, Registered Users 2 Posts: 924 ✭✭✭bored65


    https://www.reuters.com/business/energy/frances-macron-advocates-single-european-energy-market-grid-2026-02-11/


    hopefully might unlock something like a eu wide bond, we wouldn’t need to spend dozens or billions to interconnect properly if the Celtic inter-connector is an indicator of the costs and timeframes involved



  • Registered Users, Registered Users 2, Paid Member Posts: 14,401 ✭✭✭✭machiavellianme


    STATCOMs are basically just a HVDC interconnector without the onward connection. They do not feature in the SNSP calculation as they're basically a small MW load that instead produces Mvar. If they have grid forming enabled, they may help regulate the grid but ultimately they won't give inertia or other electromagnetic coupling benefits normally provided through large spinning masses.

    Post edited by machiavellianme on

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  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Are we already seeing duck curves? There's a 500MW dip in daytime demand there today.

    Slight more than the utility solar peak today that home solar is estimated to mirror.

    image.png


  • Registered Users, Registered Users 2 Posts: 316 ✭✭tppytoppy




  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Is this the area where they want to put the wind farm? That you and the locals are concerned about habitat destruction?

    image.png


  • Registered Users, Registered Users 2 Posts: 316 ✭✭tppytoppy


    Yip, those parts currently brown which would return to being boglands if BnM left them alone.

    Do you think it was the locals or BnM who turned it brown. Large turbines need deep foundations and service roadways. 800 metres from Clonmacnoise means no problem with rewetting as the Shannon will supply more than enough water.



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Did the locals object when BnM stripped them?



  • Registered Users, Registered Users 2 Posts: 316 ✭✭tppytoppy


    This is a very curious line of questioning from you. Maybe you would also like to bring my attention to the ISEQ index while you are at it. When is the right time to preserve the environment, now or not at all? The contempt shown to rural folks on these forums is very apparent.



  • Registered Users, Registered Users 2, Paid Member Posts: 15,602 ✭✭✭✭josip


    Not sure what your point is about the ISEQ.

    I wasn't aware of any objections from the locals about habitat destruction or criticism of BNM/ESB when they were getting jobs out of it.

    https://www.thejournal.ie/ireland-energy-4763403-Aug2019/

    Where I'm from, a farmer is someone who minds the land, cares for the nature and tries to pass it on to the next generation in at least as good a shape as they got it in.

    Not someone who strips it bare for their own gain.



  • Registered Users, Registered Users 2 Posts: 316 ✭✭tppytoppy


    You have no reason to believe any of those protesting worked for BnM in peat extraction and certainly not on that bog as it is on the far side of the river with no convenient bridge crossing nearby. You have no reason to believe that any of those protesting have motives other than those which they have made public. You attempting to tar them is a shameful reflection upon you, not upon them. You would not even state these views without the anonymity of a forum to shield you.



  • Registered Users, Registered Users 2, Paid Member Posts: 3,296 ✭✭✭KrisW1001


    Bleating about the anonymity of forums is a bit rich from someone who’s on at least their fifth account.



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  • Registered Users, Registered Users 2 Posts: 316 ✭✭tppytoppy


    I admit to having had a previous user from the turn of the century which I requested be deleted but I am mystified as to why you think pointing out that this is not that original username I once used many years ago is such a zinger that it should silence me on the subject of the destruction of rural Ireland. When one looks at the amounts being spent on AI build out worldwide with companies issuing bonds for 5, 10 or even 100 years you must wonder what will all this money be spent on if not compute in Datacentres with insatiable demand for electricity.



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