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Post by Cantab on Oct 30, 2024 8:19:44 GMT 12
That’s fuckin weird . Our 2018 vintage “ solar inverter “ happily takes 50Hz from the generator even on a sunny day with the panels supplying as well . It’s not a Chinese model though . Elon is going big a solar farms so who knows what will happen . I think the problems start when you try putting another generator in the system, they might synchronise, they might not. I gather generators do follow the each other to a certain extent, inverters maybe not so well. I remember using some sort of phase synchronisation display on ships to get everything in line before you bought the next one online, probably automatic these days. When the mains grid is the leader its ok, when a thousand inverters/ generators all try to follow each other because there is no leader... I've seen the results of power stations being out of phase, its not a good idea. If your standalone its probably not a problem. |
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Post by ComfortZone on Oct 30, 2024 9:06:04 GMT 12
That’s fuckin weird . Our 2018 vintage “ solar inverter “ happily takes 50Hz from the generator even on a sunny day with the panels supplying as well . It’s not a Chinese model though . Elon is going big a solar farms so who knows what will happen . I've seen the results of power stations being out of phase, its not a good idea. Yeah, when 2 generators are brought on line together that are not fully synchronised the results are "spectacular", in the case of diesel sets you can expect folded conrods and broken crankshafts as a minimum. |
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Post by muzled on Oct 30, 2024 10:50:36 GMT 12
How are the batteries charged? |
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Post by ComfortZone on Oct 30, 2024 21:40:32 GMT 12
tell us it is not about the money (being mindful of the need to be skeptical of anything from Oxfam) |
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Post by harrytom on Oct 30, 2024 22:10:40 GMT 12
1970 aprox 3.6 billion people, 2024 aprox 8.2 billion Nah got nothing to do with climate change?
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Post by fish on Nov 10, 2024 18:05:11 GMT 12
Here is a story about insurance retreat, or premiums getting un economic for nupties that buy properties that are flood prone. The reason I'm posting it here is it's the first time I've ever seen any mention of adaption with regard to climate change. Noting that properties in stupid places have been flooding since Jesus was at pre-school, as in it isn't necessarily climate change. Interestingly, none of the report's recommendations include taxing cow farts or driving EV's. It is all various forms of adaption. Imagine. Trigger warning, the report was commissioned by the "Helen Clarke Foundation", and was carried out by WSP (who used to be Opus, who used to be the Ministry of Works). As an aside, some of the recommendations are utter nonsense, like subsidising insurance premiums for people that buy in batshitcrazy places. What I can't get my head around, is Council's are still readily allowing large scale developments in flood prone areas. Sure, they require all sorts of mitigating measures, but they still allow you to buy a swamp and turn it into a high density residential area. And I have plenty of examples from the design and consenting phases. www.rnz.co.nz/news/national/533354/more-than-10-000-properties-could-become-uninsurable-as-climate-risks-grow-report |
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Post by ComfortZone on Nov 11, 2024 7:23:33 GMT 12
yet another reminder that grids cannot depend upon unreliables/ruinables When the wind stopped blowing recently in Poland, many companies were left without any power. Luckily, no households were affected, but due to the power shortages, power prices jumped by several dozen percent.
Not all entities responded to requests from Poland’s transmission system operator (PSE) for additional capacity or to limit consumption. Germany and Sweden did ultimately come through with exports, as well as Ukraine, which needed to dump some of its excess energy, writes Poland’s Business Insider.
The fact that Ukraine sent electricity to Poland is ironic, as KO MP Paweł Kowal recently told listeners on Radio Zet that Poland has to sell “cheap electricity” from its coal-fired power plants minus any Emissions Trading Scheme (ETS) costs. Poland has been suffering from a lack of wind since Nov. 5, according to BI, which has resulted in a drop in electricity production from wind turbines to 19.8 GWh, and the day after to 6 GWh.
The spot price set for electricity for Nov. 6, jumped to as much as PLN 882 per MWh. PSE’s eventual success in getting imports saw the price fall to PLN 543 the following day. This is still one of the highest price levels in Europe, beaten only by slightly higher prices in Romania, Hungary, Serbia, and Macedonia.
Late October, there had been a similar problem with a drop in wind, but photovoltaics covered the shortfall. Now, as days are getting shorter, there is also less and less energy from the sun.
This is when conventional power plants have to step in, and there are still mainly coal-fired plants in Poland. But the costs of running these currently, due to EU regulations on emissions, make them unprofitable.
“By the start of the 2030s, if we do not manage to extend the life of coal-fired units in any way, and there is a high risk that we will not succeed for technical reasons, regardless of legal solutions, we will need about 12 GW of gas power (…) and we currently have 3 GW of contracted power,” said Grzegorz Onichimowski, president of PSE, at a press conference.
Meanwhile, the recent drop in wind turbine production was not compensated by the launch of the largest gas-fired power plant in Poland. Electricity production from gas has been breaking daily records, but it could not compensate for the losses in wind turbine generation.
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Post by muzled on Nov 14, 2024 6:34:24 GMT 12
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Post by ComfortZone on Nov 14, 2024 7:56:03 GMT 12
Meanwhile the latest climate catastrophist love in, COP 29 is underway in Baku, Azerbaijan. Azerbaijan is one of the largest oil producers in the region, similar to Dubai who hosted COP28. There are ~65,000 delegates and hangers on, the vast majority who will have jetted in and will be living it up in the best hotels. After Azerbaijan, Brazil has the biggest contingent - that old crook Lula is determined to spend as much taxpayer money as possible. www.carbonbrief.org/analysis-which-countries-have-sent-the-most-delegates-to-cop29/No doubt there will be alot of hot air generated, ever increasing forecasts of doom and gloom without any basis and no actual outcome, with all attendees slapping each other on the back and saying "see you at COP30" which is scheduled for Brazil - it's in Belem (I have been there many times) which is nothing special, surprised not in Rio . The president of Azerbaijan has given attendees a serve about their criticism of hydrocarbon fuels |
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Post by ComfortZone on Nov 14, 2024 8:15:23 GMT 12
and more on COP29 www.turbulenttimes.co.uk/news/front-page/climate-change-poised-to-fail/opens In the annals of insanity, it would be hard to improve on the spectre of a British prime minister being flown over to a remote spot in the world in an RAF passenger jet.
All this is to enable him to virtue signal in front of the British media – also flown over for the occasion – offering an impossible and unnecessary emissions target while lying about the consequences of forcing state and subordinate institutions to make the attempt.
We are, of course, talking about Cop29, the latest in the annual fest of the brain-dead and clinically insane, gathered together to conspire in the destruction of Western economies, putting those observers and commentators who have to write about it through a process which no-one should ever be asked to suffer.
In the decades of writing about climate change, energy and allied issues, nothing said or written by the warmist fraternity on an obsession which survives only because it is bolstered by lies and deception has ever made sense.
We are now seemingly entering the end game where the pursuit of the impossible is about to hit the rocks of reality and demonstrate for all time that the targets are a chimera, fraught with dangers as the inevitable consequence will be economic degradation and the certainty of prolonged and damaging power cuts.
Note in the comments Milei has pulled the Argentinian delegation home
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Post by fish on Nov 14, 2024 8:36:45 GMT 12
Just for my naïve understanding, do they have one of these huge international conferences EVERY YEAR?
Not every 4 years?
65,000 attendees?
Do they all sleep in Marae? On the floor in large warehouses, or does the host city build shit-tonnes of shiny new hotels to accommodate them all? Like the Olympics where they build a whole new suburb under the guise of 'economic development' to host the event, then hand it over to some deeply indebted locals as some sort of benefit for hosting the event?
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Post by ComfortZone on Nov 14, 2024 10:05:38 GMT 12
Just for my naïve understanding, do they have one of these huge international conferences EVERY YEAR? Not every 4 years? 65,000 attendees? Do they all sleep in Marae? On the floor in large warehouses, or does the host city build shit-tonnes of shiny new hotels to accommodate them all? Like the Olympics where they build a whole new suburb under the guise of 'economic development' to host the event, then hand it over to some deeply indebted locals as some sort of benefit for hosting the event? every year starting 2005 lots of shiny new hotels and refurbished existing, the best crayfish, meat and caviar all wahsed down with a good wine and spirit selection, and no doubt quite a few high priced "escorts" working behind the scenes
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Post by GO30 on Nov 14, 2024 12:44:03 GMT 12
The last few COPs have been at the very top of the largest CO2 spewing events in the history of man.
I think only the soccer world cup generates more.
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Post by ComfortZone on Nov 18, 2024 7:32:52 GMT 12
well, surprise surprise, stand alone wind power is not "economic" without subsidies More evidence that offshore wind isn't economically viable without subsidies.It has been a busy past few weeks and I’m catching up on a bit of news that has come though recently.
One of these items was the announcement that BlueFloat will abandon their plans for offshore wind developments in Taranaki and the Waikato.
One of the most sighted reasons for this decision was seabed allocation, specifically incompatibility with seabed mining offshore of South Taranaki.
I am skeptical that this is the primary reason for the New Zealand market exit as the turbines would have been sited about 2km apart, and cabling exclusion zones could easily be established.
The reason I suspect has much more to do with the lack of contracts for difference (CfD’s), or as the wind industry like to refer to it “revenue stabilisation”. I have previously written on CfD’s and revenue stabilisation. Despite our Prime Minister Chris Luxon’s love affair with intermittent low energy density sources, National has publicly stated that they do not support the introduction of CfD’s to the electricity market. Perhaps it is an over confidence in the virtues of offshore wind leading him to believe that CfD’s are not required? Either way National has no plans to introduce subsidies in the form of CfD’s.
BlueFloat New Zealand General Manager Nathan Turner sighted a lack of CfD’s as one of reasons for the decision to pull out of New Zealand. Additionally, in September while visiting New Zealand, BlueFloat CEO Carlos Martin emphasised how market-based mechanisms like CfD’s can accelerate renewable energy deployment by de-risking investments and speeding up project delivery.
De-risk obviously means transferring risk to someone else’s account.
Venture Taranaki’s Kelvin Wright also cited the lack of CfD’s as one of the industries ongoing challenges
"The withdrawal of BlueFloat Energy highlights several ongoing challenges within the offshore wind sector in New Zealand. These include competition for shallow seabed space, the absence of a clear regulatory regime, the need for revenue stabilisation mechanisms like Contracts for Difference (CFD), and the establishment of a viable national sector size. Additionally, there remains the challenge of securing demand-side contracts and addressing commercial viability. These issues require urgent and strategic attention from policymakers."
The bottom line
What can be established from this is the simple fact that offshore wind is not economically viable in an open market without subsidies.
Why?
Because - physics.
It’s the iron law of energy density
Low energy density = High resource intensity.
Spend a claimed $5.5 billion (it would be much more than that) to install 1000MW of generation capacity in a harsh and not easily accessible environment. The infrastructure has a lifespan of maybe 20 years. Which will on average provide about 400MW of electricity as best, with zero control over when and in what quantity it will be delivered to the market.
That’s a pretty hard sell to anyone with that kind of money to invest if the Govt. is not guaranteeing they will make a return on their investment.
So, the international players leave New Zealand and go to locations where there is a Govt. that is happy to hand over large wads of taxpayers money in perpetuity.
As I have said before there are a lot of really smart talented people busy working on a pathway for offshore wind in New Zealand. To me this represents a huge opportunity cost and the sooner these talented folks are re-directed to higher quality, higher capacity factor, energy sources the better.
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Post by GO30 on Nov 18, 2024 13:07:38 GMT 12
Spend a claimed $5.5 billion (it would be much more than that) to install 1000MW of generation capacity in a harsh and not easily accessible environment. The infrastructure has a lifespan of maybe 20 years. Which will on average provide about 400MW of electricity as best, with zero control over when and in what quantity it will be delivered to the market.
I saw a thing a week or 3 back where it explained how Govts are being 'sold' 1000MW of 'installed capacity' but without the detail of, bugger lost the name they used but it was the same as 'but in reality we'll only get....' I'll suss for the name.
The same article also suggested they could not find even 1 wind farm that ever output anything close to it's 'installed capacity'.
Basically wind farms are being sold as 'A Commodore with a V8 under the hood'. They get installed to find 4 cylinders have been blanked off.
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