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Random Renewables Thread

1…7576788081…97

Comments

  • #2312
    Cyrus
    Registered Users, Registered Users 2, Paid Member Posts: 21,619 ✭✭✭✭Cyrus


    https://www.boards.ie/discussion/comment/122395000#Comment_122395000

    yes we need to sweat the grid connections, hybridisation between wind solar and ideally storage is the way to do it. Single tech renewables use maybe 30% of their grid capacity overall.



  • #2313
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,252 ✭✭✭deezell


    I see a plethora of compact vertical style rooftop models on Amazon, many claiming 8Kw output , available in a 12/24/48v or 220vac with BMS, all for €380. If they even managed 1kw they would be a very useful device on a breezy night, and complement solar by day. I don't see why you couldn't decapitate your unused solid fuel chimney, then drop a steel mounting pole down 3m into the flue and backfill with concrete. That's not going anywhere, and its hardly any bigger than the chimney it replaces.

    20240718_114216.jpg


  • #2314
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/122395285#Comment_122395285

    Forget it, they don't work. We have several threads on them in this forum. Personally, been there, done that. VAWT on a 6m pole, with the prevailing winds coming right at it, at the very edge of a built up area with no buildings, walls or trees in the way. Would have really liked it to work, just a little bit. But it doesn't.

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #2315
    Exiled Rebel
    Registered Users, Registered Users 2 Posts: 1,052 ✭✭✭Exiled Rebel


    There's a vertical axis turbine just off the M8 near Cashel. I've passed it 4 times a week since April yet never seen it spin, perhaps it's broken?!?!?

    There's a horizontal axis turbine at junction 10 on the same motorway which does spin quite a bit. It's not a domestic turbine, I'm actually not even sure what it's supposed to be supply power to but it does be flying at times.

    EDIT: JUST FOUND THIS ELSEWHERE ON BOARDS...

    'South Tipp Co Council Construct NRA Pilot Wind Turbine - Tipperary Energy Agency assisted by Arup Consulting Engineers procured this Horizontal Axis Wind Turbine of 11kW rating to alleviate the cost of lighting Junction 10 on the M8 in South Tipperary'

    https://www.boards.ie/discussion/2057864749/wind-turbine-on-m8-nr-cahir



  • #2316
    Ubbquittious
    Registered Users, Registered Users 2 Posts: 6,350 ✭✭✭Ubbquittious


    https://www.boards.ie/discussion/comment/122395285#Comment_122395285

    You will get nowhere near 8kw from that be very lucky to get 1



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  • #2317
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,252 ✭✭✭deezell


    https://www.boards.ie/discussion/comment/122395624#Comment_122395624

    As I'd said, even 1kw would be good, but even then I have my doubts, as the basic math of surface area and wind speed don't add up except in a storm maybe. The fact that all the listing are from China or Ali, where exaggeration is par, makes me suspect that you'd do well to charge your car battery. Some more honest adverts are quoting 300-400w, which might be more realistic.



  • #2318
    slave1
    Moderators, Sports Moderators Posts: 18,522 Mod ✭✭✭✭slave1


    with this type of stuff we really need to see a real user YT review else take with a pinch of salt

    My stuff on Adverts, mostly Tesla Pre Highland Model 3

    Public Profile active ads for slave1



  • #2319
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,252 ✭✭✭deezell


    https://www.boards.ie/discussion/comment/122395467#Comment_122395467

    What dimensions or surface area, and what was the best output value for moderate wind input.



  • #2320
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/122395820#Comment_122395820

    I've seen plenty of real user YT reviews of VAWT and HAWT. Unless you live in a one off house on top of a hill somewhere, the results were always beyond poor. I was told it wouldn't work. But I am stubborn and thought I had half a chance with my settings, a VAWT on a 6m pole, so I went ahead. But they were right and I was wrong. It don't work in an urban setting. Thankfully this experiment didn't cost me anything.

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #2321
    deezell
    Registered Users, Registered Users 2, Paid Member Posts: 8,252 ✭✭✭deezell


    The output is proportional to the cube of the wind speed, so conversely, If your wind speed is only half of what might be obtained in a nearby high unobstructed location, then your output is ½³, which is only 12.5% of the potential of the wind. It's why the commercial turbines need to be so high, out at sea or on top of hills and mountains. Scaling down to micro size is not proportional unless its mounted at the same height in the same location as the big boys. I'll agree with @unkel on this one, he's walked the walk.



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  • #2322
    the_amazing_raisin
    Registered Users, Registered Users 2, Paid Member Posts: 13,392 ✭✭✭✭the_amazing_raisin


    Been spending the past week in Northern Wales looking at this beast

    https://en.m.wikipedia.org/wiki/Gwynt_y_M%C3%B4r

    160 3.6MW turbines, enough to power a third of the houses in Wales. Pretty crazy to think the wind farm is over 10 years old, imagine if it used those 16MW beasts the Chinese are showing off

    Meanwhile we're in the stone age for offshore wind 🙄

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • #2323
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/122397061#Comment_122397061

    Started producing electricity one year after building work started. Impressive that, taking into account that was a decade ago.

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #2324
    graememk
    Moderators, Home & Garden Moderators Posts: 7,320 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/122397096#Comment_122397096

    And it's in the Irish sea, which is no Atlantic for wind!



  • #2325
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 96,606 Mod ✭✭✭✭Capt'n Midnight


    https://www.boards.ie/discussion/comment/122397061#Comment_122397061

    16MW turbines are so last year. The Chinese now have 18MW-20MW turbines



  • #2326
    graememk
    Moderators, Home & Garden Moderators Posts: 7,320 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/122397425#Comment_122397425

    So in comparison Ardnacrusha power plant, is 86MW,

    Just 5 of them would generate more than ardnacrusher

    (In comparison poolbeg is 470MW gas power plant)



  • #2327
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/122397518#Comment_122397518

    In fairness Ardnacrusha is nearly 100 years old!

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #2328
    graememk
    Moderators, Home & Garden Moderators Posts: 7,320 Mod ✭✭✭✭graememk


    https://www.boards.ie/discussion/comment/122397565#Comment_122397565

    They do free tours there. Just have to pre book.



  • #2329
    Exiled Rebel
    Registered Users, Registered Users 2 Posts: 1,052 ✭✭✭Exiled Rebel


    https://www.boards.ie/discussion/comment/122397061#Comment_122397061

    Scotland have asked Wales to hold their beer!

    3.6GW floating wind farm is with the Scottish government for approval. It will ONLY generate enough power for up to 6 million homes annually.

    https://www.google.com/amp/s/www.insider.co.uk/news/ossian-floating-wind-farm-submits-33245761.amp


  • #2330
    the_amazing_raisin
    Registered Users, Registered Users 2, Paid Member Posts: 13,392 ✭✭✭✭the_amazing_raisin


    https://www.boards.ie/discussion/comment/122397565#Comment_122397565

    One thing that has always amazed me about Ardnacrusha is that it got built despite the political environment of the day

    It took something like 20% of the state's budget in 1929 to build and provided most of the country's electricity for decades (admittedly because Ireland was basically preindustrial up to 1989)

    Imagine trying to get a reallocation of 20% of the national budget to any project nowadays, there'd be inquiries for the next 100 years over it

    I suppose it helped that Ireland was largely a one party government back then, but it still showed some serious ambitions which today's politicians seem to lack

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • #2331
    the_amazing_raisin
    Registered Users, Registered Users 2, Paid Member Posts: 13,392 ✭✭✭✭the_amazing_raisin


    https://www.boards.ie/discussion/comment/122397123#Comment_122397123

    Annoyingly a lot of them seemed to be turned off. It wasn't exactly blustery but still a decent breeze and a few of them were turning

    I guess it's summer so plenty of power in the grid, but the UK could go and export the excess to us and save us some gas consumption

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



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  • #2332
    the_amazing_raisin
    Registered Users, Registered Users 2, Paid Member Posts: 13,392 ✭✭✭✭the_amazing_raisin


    https://www.boards.ie/discussion/comment/122397518#Comment_122397518

    I think Poolbeg is at 60MW max now because it's running from steam generated in the incinerator nearby. As I recall they decided to reuse on of the turbines in Poolbeg 1 (the big chimneys) instead of installing a new one

    The actual power plants have been offline for a few years now, although I think they're on cold standby so could be reactivated fairly easily

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • #2333
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 96,606 Mod ✭✭✭✭Capt'n Midnight


    https://www.boards.ie/discussion/comment/122397697#Comment_122397697

    Only 6 million ?

    Hmmm… On Census Day, 20 March 2022, the population of Scotland was estimated to be 5,436,600.



  • #2334
    Jonathan
    Moderators, Education Moderators, Home & Garden Moderators Posts: 8,317 Mod ✭✭✭✭Jonathan


    https://www.boards.ie/discussion/comment/122397859#Comment_122397859

    Pretty sure the waste to energy plant is completely separate. There is Dublin Bay power station down there too, and Dublin Bay power station on the other side of the port.

    https://openinframap.org/#13.18/53.34426/-6.1984/



  • #2335
    Exiled Rebel
    Registered Users, Registered Users 2 Posts: 1,052 ✭✭✭Exiled Rebel


    https://www.boards.ie/discussion/comment/122398481#Comment_122398481

    Turn on the sarcasm detector.

    While the turbines will be in Scottish territorial water the power generated will be coming ashore further south in Lincolnshire.

    Once again the Scots are having another of their resources plundered.



  • #2336
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    Pathetic performance from Ireland and Poland, the filthy dirty old men of Europe 😫 Poland of course is a lot poorer than Ireland. We don't have that excuse.

    image.png

    And from Eirgrid, the worst graph I have yet seen. And I know there is very little wind today, but no excuse why we shouldn't have about 100% renewables from solar PV alone right now

    image.png

    Personally I have already exported 42kWh to the grid today and it is only 11AM. I'm doing my best here but we need buy in from the government. Is there no politician with balls out there? I believe we are getting another €450 electricity credit per household in this election year 🙄 That will cost the guts of a billion of tax payers' money. Can we not spend that towards speeding up renewables?

    Rhetorical question and apologies for rant. But seriously???

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



  • #2337
    SD_DRACULA
    Registered Users, Registered Users 2 Posts: 2,693 ✭✭✭SD_DRACULA


    I agree with all of the above.

    Absolutely no excuse for Ireland not being 100% electric these days including EVs, for the size of it. Let's not come up with excuses about "charging infrastructure". Government should punish any sort of burning (including their own), simple as.



  • #2338
    the_amazing_raisin
    Registered Users, Registered Users 2, Paid Member Posts: 13,392 ✭✭✭✭the_amazing_raisin


    All those data centers need cooling so the AI bots can scam more people

    "The internet never fails to misremember" - Sebastian Ruiz, aka Frost



  • #2339
    cnocbui
    Registered Users, Registered Users 2 Posts: 21,349 ✭✭✭✭cnocbui


    https://www.boards.ie/discussion/comment/122448067#Comment_122448067

    This can only change by building nuclear, which is cheaper than either solar or offshore wind if one measures using power produced, instead of LCOE.



  • #2340
    unkel
    Registered Users, Registered Users 2 Posts: 60,228 ✭✭✭✭unkel


    https://www.boards.ie/discussion/comment/122448258#Comment_122448258

    Not that again. You've been proven wrong by every current built of nuclear in the western world. Takes too long and costs too much money. Tony Seba just predicted that all electrical plants in the world that will start their build from 2030 will be either solar PV or wind. He has been proven right time and again, including time lines. Unlike Elon Musk LOL

    Interestingly he has also just said that no material percentage of mainstream cars manufactured worldwide from 2030 will have a combustion engine

    "Make no mistake. The days of the internal combustion engine are definitely numbered" - Quentin Willson, 1997



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  • #2341
    cnocbui
    Registered Users, Registered Users 2 Posts: 21,349 ✭✭✭✭cnocbui


    https://www.boards.ie/discussion/comment/122448105#Comment_122448105

    No excuse? How about affordability and stupidity - by which I am referring to the anti-nuclear brigade and legislation. In 2023 France produced more zero CO2 electricity than was consumed, and it wasn't because of renewables.

    What kudos does France get for such an amazing feat? None, instead the renewables cretins in the EU are threatening them with fines for not achieving their amazing results using unreliable intermittents..



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