Net Zero Offshore Wind
By Paul Homewood

The Government has today announced the results of the fifth auction of Contracts for Difference (CfD) subsidies for renewable electricity generation. Its has been a failure, and may represent a landmark moment for renewables policy.
Only 3.7GW of new capacity has bid successfully, mostly through small projects, as compared to nearly 12GW last year. There were no bids for offshore wind, the UK’s flagship renewable generator.
Participants in the auction bid for guaranteed prices, below a cap set by ministers in advance of the auction. The cap for offshore wind was set at £44/MWh (in 2012 prices, equivalent to around £70/MWh today). This is higher than successful bids in the past, yet no wind farm developers felt able to bid at this price. Wind industry claims that this is due to rising prices are implausible – CfD contracts are index-linked.
While offshore wind’s failure to bid may be surprising to some, perhaps even to the Government, it will come as no shock to those familiar with the long-term capital and operating cost trends for wind power, as revealed in audited financial statements. Costs have not been falling dramatically as the industry claimed. All around the world the wind industry is in trouble for the same reasons; costs remain high, and high levels of subsidy are needed to reward investors.
In addition, the latest auction round closes down the loophole that allowed windfarms to reap huge windfall profits by failing to activate their contracts so that they could benefit from higher prices in the open market.
The fact is that wind power, wherever, is an expensive way of generating energy. That isn’t surprising either; wind is a physically low-quality fuel and the cost of turning it into electricity is intrinsically high.
The previously successful low bids for offshore wind were unrealistic, a point we made at the time. Even when built, wind farms delayed taking up their contracts so they could operate on a merchant basis, taking advantage of temporarily high wholesale prices.
Importantly, the cap for onshore wind bids in this round of the CFD auction was higher than that for offshore, at £53/MWh (2012 prices). There were a substantial number of successful bids at this price, though they are all located in Scotland, where land rents are lower and where the developers can expect to make extra income through the infamous “constraint payments”, where a wind farm is paid to reduce output. (Demand in Scotland is low and the grid links to England are congested, limiting exports.) Even so, we doubt that these successful onshore bids are strongly economic.
Andrew Montford, director of Net Zero Watch, said:
"Government seems to have believed the spin about falling offshore wind costs, and set a low cap on bids for new contracts, thus calling the wind industry’s bluff by accident. Doubtless, the industry will now beg for new and higher subsidies, blaming inflation and supply chain problems. Government should not believe this spin. As global experience shows, wind power is extremely and intrinsically expensive."
Dr John Constable, energy editor of Net Zero Watch, said:
"The CfD auction results are symptomatic of a wider failure of wind power around the world. The industry is in a crisis from which it is unlikely to recover, because its costs are simply too high to be sustainable. The time has come for Government to admit that renewables have failed, and to start looking at realistic energy policies."
There’s an interesting comment in EDP:
Andrew Harston, chair of East Wind, said: "This is a difficult time for UK offshore wind developers with massively increased costs of the order of 40% in their supply chain as a result of inflation effects and the impact of higher interest rates.
The impact of interest rates is real and significant. For years they have of course been artificially ultra low, thanks to QE. That has been in effect yet another subsidy for renewable energy, paid for by savers. It can also be argued that inflation has also been ultra low until 2021, as the pandemic depressed economic activity.
Either way, that 40% would suggest costs of around £65/MWh at 2012 prices, or £80/MWh at current prices. This is at a similar level to the market price of electricity.
Given the wider system costs involved with intermittent renewables, offshore wind certainly cannot be regarded as a bargain.
This is particularly so given the historic power price has been around £50/MWh. This has risen in the last couple of years because of two factors:
1) Higher carbon prices, which feed into the price of gas-fired power. This is the direct result of govt policy, deliberately designed to force gas power out.
2) The attack by western govts and banks on new gas and oil exploration, which has restricted supply.
It is no coincidence that just today WSJ are reporting that Biden has cancelled seven Alaskan oil and gas increases, originally granted by Trump.
And what do DESNZ say about this disaster for renewable strategy:
https://www.gov.uk/government/news/record-number-of-renewables-projects-awarded-government-funding
It may be a record number, but they are all tiny projects. Previously CfDs were reserved for large scale ones.
Nearly half, 1.5 GW, is solar capacity, which will produce a tiny amount of power, only about 1 TWh. Worse still, it will be next to useless in winter.
FOOTNOTE
Net Zero Watch state:
In addition, the latest auction round closes down the loophole that allowed windfarms to reap huge windfall profits by failing to activate their contracts so that they could benefit from higher prices in the open market
I may be wrong, but I thought the loophole was being closed from next year’s round, AR6.
Can anybody throw some light on this?
Comments are closed.
39MW from 13,000MW of capacity this morning.
No wonder the auction was a disaster.
Looking at http://www.gridwatch.co.uk a very rough estimate is that total wind output so far this month has averaged 2.5GW and average demand has been 25GW. This leaves a shortfall of over 4,000GWh. Some of this will of come from solar, not really relevant in winter, and nuclear, in 15 years time how much nuclear capacity will we have? Lets assume gas provided 2,000GWh, if the grid is to become zero carbon how can anyone hope to store that amount of electricity let alone the amount that would need to be stored in winter and the huge increase in electricity demand when people are forced to drive EV’s and use heat pumps. At a rough guess I think we’ll need at least 10,000 GWh’s of storage by 2050. There isn’t a snowball’s chance in hell of having anywhere near that amount.
That’s way short in my opinion.
Wind has been low since the start of May, rarely out supplying gas. My estimate is to replace gas during that time we’d have needed at least 65TWh of storage that could meet 20GW demand.
Matt you can get ongoing reasonably good figures from this website.
https://www.mygridgb.co.uk/last-12-months/
For September so far total demand is 5.5TWh of which wind has supplied o.5TWh i.e. just 10%.
Regarding storage levels required, I personally think you are underestimating quite considerably and this is before the alleged electrification of heating and transport.
As we all know, however, none of this storage is either being built nor projected to be. All the battery packs are for is to make up for the poor quality of power generated in a sticking plaster fashion and not to cover intermittency.
And massive over-capacity of renewables to provide the electricity to store. Assuming for simplicity that wind capacity is 50% and all wind is blowing or not, you need 2 times demand in terms of capacity to charge batteries for the lulls. Assume that batteries discharge more quickly than some lulls last and you need vast amounts of batteries and more than 2x capacity. Anybody who thinks that can be done at a cost even close to what we were paying in say 2015 is delusional.
Don’t forget the elephant in the room. No one is building “storage” to back up the grid. They are building it to arbitrage variable electricity pricing. Storage builders don’t love you; they want to make money.
STBUTG would be a hideous investment. You could sell your electricity a few times a year.
Then politics enters. Re-enters. Selling your electricity for £10 per kWh, just to break even, will raise cat calls from everywhere. So you get to sell your stored electricity ONCE, then the business collapses with the torch and pitchfork crowd out front demanding your body.
STBUTG ?? Who he?
“storage” to back up the grid
People are probably correct that I massively underestimated the amount of storage needed. I just did a very quick back of a fag packet calculation based on output and demand so far in September.
If we assume that the true figure is much closer to 20,000GWh and the vast majority is provided by batteries here’s another very quick calculation. When Tesla built what was then the world’s largest battery in Australia it cost Au$50million and was claimed to store 129MWh’s of electricity. The amount of power that batteries can store decreases with regular charging and discharging so, to make the sums easy, lets assume 100MWh’s over the life of the battery. This means we’d need 200,000 batteries of this size, total cost Au$10trillion or roughly £5trillion. Obviously if demand for lithium, cobalt etc. increases massively them the cost will increase massively, so you knows what the actual cost will be, almost certainly above £10trillion for batteries that will probably need replacing every 10 years, if not sooner. Official estimates of the cost of net zero are as low as £1.4trillion. What planet are these people living on? Does nobody in the government have basic numeracy skills?
” For September so far total demand is 5.5TWh of which wind has supplied o.5TWh i.e. just 10%. ”
This nonsense will continue as long as the believers have influence. Logically – on the data available – the plug needs to be pulled on wind power.
Unfortunately, “belief” can frequently prevail over “logic”.
“belief” can frequently prevail over “logic”.
Yes religion remains popular.
Thanks Gamecock for telling me what STBUTG is. IMHO batteries to achieve short term transfer from low demand to high demand times of day are credible but batteries to store all the power for a month say is cloud cuckoo land.
Maggie prepared for the miners strike with MASSIVE stockpiles of coal. Which has a higher energy density than any battery!
Time to start stocking up on candles then as things are unlikely to get any better with the Greenloon Milliband in charge of energy.Think what the current Energy Bill will give him in terms of new powers …The world has gone mad !!
“It may be a record number, but they are all tiny projects.” They may be tiny in terms of electricity produced, but the 50+ solar farm schemes awarded contracts are huge in terms of the area of land involved (wasted). I would guess about 10 square miles of farmland lost to food production. How can politicians be so stupid (or is it brown envelopes or blackmail)?
We can import food, so the government doesn’t have to worry about loss of farmland. Obviously they haven’t considered the higher costs or increased emissions this will involve. They can still afford to shop at M&S so why care about the “plebs” that are already struggling to feed their children.
You also have to remember that a farm taken out of food production can have a massive effect on local employment (farmworkers) and on the local community.
Why would the government care about loss of employment or the effect on rural communities? Some wealthy large landowner, and probable donor to the Tory Party is going to be raking in massive amounts of cash.
Phillip, the number of farm workers, will be minimal. Looking at the harvesting of the fields around me, we have one man driving the combine harvester & another driving the tractor with the grain trailer.
Why would imported food have higher costs or higher emissions? Places better at farming would have lower of both.
Adam: there is very little grain grown near me. It is all pastoral (sheep and cattle), small fields, miles of hedges. Lots of farm workers and their families.
Are you saying that £80/MWh is the current market price of electricity at point of generation?
Am I wrong in calculating that that equates to 80p/kWh?
Which is more than double what I am currently paying. I thought Government subsidies were over?
Yes, the wholesale price just reflects the price of power.
On top of that comes green subsidies, distribution costs, vat and supplier margins
£80 is 8,000 pence.
One MWh is 1,000 kWh
So £80/MWh is equivalent to 8 pence/kWh
So Stephen if you are paying 40 pence per kWh (or more) you might want to consider why the retail price of cheap renewable electricity is five times the wholesale cost. In the 1980s-90s, when I worked for the CEGB, the bulk supply tarif to the area boards was about 3 1/2 pence per kWh and the retail price was about 5 1/2 pence per kWh. I have not looked at the increase in the standing charge but I suspect that it has rocketed as well.
Standing charges have rocketed, we are paying for all those billing companies that went bust.
Stephen “Am I wrong in calculating that that equates to 80p/kWh?” Yes, it’s called a placement error. A MWh is a thousand kWh. Divide 80 by 1ooo, and what do you get?
Since there are 1,000kWh in a MWh and 100p in a pound, £80/MWh is 8p/kWh. If that seems small compared with your current bills it only goes to show what all the extra costs for the grid, distribution and green subsidies, smart meter programmes, etc. add in. Of course, renewables cost a lot more – the average CFD pays about £175/MWh, and it’s about the same at the moment for the larger volume of renewables still on ROCs.
notify comments
So that is why onshore wind farm rules were relaxed. Change of direction, but wind is still intermittent 16th century technology. Lets just get on fracking, take the carbon tax of gas (and coal) get on with the modular reactors, just give Rolls Royce the money, rather than more delays running a competition.
We all know CO2 from fossil fuels is not the cause of alleged global boiling…
“We all know CO2 from fossil fuels is not the cause of alleged global boiling…”
Indeed we do, and I’m sure they do as well, but when have you ever known a single politician to admit they were wrong, let alone all of them? They are too busy riding the gravy train…
Time for a modern day Oliver Cromwell as Westminster no longer serves the indigenous population, just themselves and their masters agenda.
Maybe we wouldn’t be such a pushover if we had a right to bare arms like the US as they would have to consider this in their mandates.
Yes, I cringe when they talk about “government ambitions.” The people don’t matter anymore. If they ever did.
Note that “the people” are paying for all this happy horseshit.
When did we lose the right to bare arms?
We have the right to bare arms in the UK.
🤣🤣🤣
I am making the most of it whilst I can. It could be the last chance this year.
The loophole was closed in AR5 (see Clause 3.21 in the Standard Terms for AR5), along with paying no CFD compensation any time day ahead hourly market prices go negative, which will be increasingly often the more capacity that gets built. Previously, that only applied to periods of more than 6 contiguous hours of negative prices, or not at all in the earliest contracts. That means AR5 wind farms would be first in line to curtail, because they have no contractual loss if they curtail, and would make a loss if they did not.
“That means AR5 wind farms would be first in line to curtail, because they have no contractual loss if they curtail, and would make a loss if they did not.”
Thanks for that key point, IDAU
Well as a I keep saying : The Heron is no longer hanging around the pond for fish – Its FLOWN !
Will the GreenBlob & Government EVER get the message that when there is no wind and little SOLAR there will be little power around to do or CONTROL ANYTHING. Even Greater Climate ALARM ALARM ALARM ! – THERE’s NO WIND, there’s no Power tonight for my EVs etc etc, and then sadly too there will be no running Diesel standby generators …., NO Power to fill backup units for security, etc …. Relly well thought out Primary School stuff, eh?
A quick look at what AR5 did procure:
The people from 200 years or so ago who had to wait for the wind to blow and the rivers to fill just to grind the corn for their food would have brought a real understanding and common sense to our current predicament.
Here are the auction results in terms of pricing:
Essentially all the capacity was able to secure the ceiling price (or very close to it) because of lack of competitive interest. The 2023 prices are calculated using the LCCC inflation factor for the current year which is 1.33757 times the 2012 base price. It should be obvious that offshore wind requires a significant premium to onshore wind.
One of the reasons the government thought that wasn’t the case is because of the ridiculously high capacity factors (and therefore revenue generation) they thought offshore would achieve: the AR5 assumption is 63.3% for ordinary offshore, and 60.4% for floating offshore – note they assume this for all wind farms in each category, instead of asking applicants to estimate what they will achieve while providing basis for the estimate. Given that as more capacity is added, more of the output will be curtailed (especially on AR5 terms that offer no compensation for negative price hours), and that the actual performance of recently commissioned wind farms has tended to disappoint this is plainly in cloud cuckoo land.
I see DESNZ has smuggled out its response to the consultation on additional “non-price factor” CFD subsidies.
Click to access cfd-scheme-non-price-factors-cfe-government-response.pdf
Unsurprisingly the industry is in favour of more subsidies. I was one of the 6 individual responses, and I called for the idea to be abandoned in favour of recasting the auction scheme back into reality. Back in May I wrote:
This enquiry is really predicated on the fact that the AR5 CFD auction looks like it will emulate the Spanish auction in October/November and produce few if any bids, particularly for the intended mainstay of capacity in offshore wind. It is seeking to find back door ways of increasing subsidies while trying to maintain a fiction about the real costs of renewables by handing out subsidies in the manner of a medieval monarch doling out royal warrants and charters to preferred favourites.
The parameters for the AR5 auction that were set under the arcane rules are the result of modelling and data collected in 2020, when energy prices were depressed by a glut caused by demand suppression through globally widespread lockdowns under the pretext of covid, and when manufacturing was keen to secure orders even at loss making prices to keep plants operational. The decommissioning costs are based on modelling by ARUP in 2018. The assumptions on hurdle rates also date from 2018 – since when interest rates and tax rates have ballooned. The modelling of anticipated capacity factors is a considerable stretch of imagination with only the most tenuous links to reality – consequently greatly over-estimating projected revenues. The realities of the figures are all hidden by the device of re-pricing them to 2012 money. Collectively, they represent a gross under estimate of current costs, as the wind industry lobby has not been shy to point out.
It is quite evident that BEIS believed their own propaganda models (as they seem to with other things too) about cost and performance trends for renewables, and particularly for offshore wind. They were duped into believing that strike prices in AR3 and AR4 represented real declines in costs, rather than merely being the way to secure the right to build capacity which would benefit from market prices supported by rising carbon prices – and failing to recognise that the contracts did not guarantee that CFDs would be taken up. To date the lowest operational CFD for offshore wind is for Triton Knoll from AR2, currently worth £107.19/MWh – with the last tranche of that only exercised following the institution of the Generator Levy, thus protecting £32.19/MWh from 45% tax, which results in higher after tax revenue at market prices up to about £155/MWh.
…
AR5 suffers not only from the failure to recognise real cost pressures for wind turbines, jackets and financing, but also for its aggressive stance on negative market pricing. I believe I was responsible for highlighting the abuse of the previous provisions to OFGEM i, where triggering the 6 hour no compensation provisions was being avoided by letting five hours of negative prices be followed by a sixth hour bid to barely positive, followed by further periods of negative prices if surpluses remained. It was abusive because the earlier CFDs were at lavish prices, and subsidies were being levied from UK consumers to fund exports at negative prices, not benefitting the UK economy. The new measure will leave AR5 generators vulnerable to substantial loss of revenue and curtailment because they will be first in line. It doesn’t really solve the negative value export problem either – one that will get much worse as capacity increases: we had a foretaste arising out of the exceptionally low demand due to lockdowns in 2020.
Recent evidence suggests that real costs for offshore windfarms are running far above the Administrative Strike Price for AR5. The ORESS 1 auction in Ireland produced an average price for offshore wind of €86.05/MWh – about £75/MWh. The ASP is £44/MWh in 2012 money, or £58.85/MWh indexed to current prices. The Irish auction is priced in money of today, but it contains indexation provisions during construction to de-risk changes in construction cost between award of the CFD and project completion – see Section 5 of the terms. Its indexation in the production phase is only partial, reflecting the fact that most of the cost is depreciation of the sunk capital cost, and that financial derivatives can largely eliminate interest rate risk. It also offers generous curtailment compensation. Given that the initial projects are lower cost, in relatively shallow waters this shows how out of touch the AR5 provisions are, with the Irish clearing price being over 25% higher than the maximum AR5 bid price – which under the revised terms will be enforced, rather than being a put option strike price. The first step should be to review the CFD architecture and assumptions ahead of AR6 to bring them into closer alignment with reality. The Irish appear to have a better model. Trying to fix it with the kind of kludges you propose is heading further into the land of fairy tales.
by way of an introduction to my actual responses, ending with the tersest response to Q17 about timing of introduction of the new subsidies: Never.
A quick fisk on the much reported ECIU claim that the failure to procure wind will cost consumers £1bn a year. If we assume that 5GW had been secured, at a generous capacity factor of 50%, it would generate 21.9TWh a year and therefore the saving would be £1bn/21.9TWh, or about £45/MWh. Gas generation is averaging about £85/MWh, so that would imply a price of £40/MWh for the offshore wind. None was procured at £58.85/MWh in 2023 money.
It doesn’t add up…
O/T The BBC does Global Warming scare porn
that’s its culture.
So Friday it had a dramatic story
UK’s long-lasting snow patch melts away
Back on 8th October 2022 : Scotland ‘snow-free’ as Sphinx patch melts again
both quote Iain Cameron
I notice two things
#1 After one low where the patch is zero, it’s not a surprise a patch decays to zero the next year
cos it’s starting from a low base.
Eventually you’ll get a cold year and patch build up.
#2 In the 2022 photo Iain Cameron is show with a 3 ft long chunk in his hand.
Well if he is handling the patch in such a way
it’s no surprise it melts more than it would have .
As I write UK wind is on its second day of virtually no wind. Five per cent of post breakfast low demand. Do let’s triple that and we will have achieved Net Zero !!
Why does the government put ceilings on the bids in the first place? It doesn’t have to take up any offers, so why not let the market tell us the price?
Oh because that would ruin the game and wreck the pretence.
The government came close to no bids at all. The projects that “won” all got the ceiling price or very close to it. Arguably, they knew there was no competition from offshore wind, but if there had been any further misjudgement on ceiling prices there might have been very few applications indeed.
” The government came close to no bids at all. ”
Sack the procurement team.
Costs may have risen by 40% but how much of this is attributable to high energy costs caused by wind generation?
Off topic but the Daily Telegraph today is reporting that forecasters have declared – not predicted declared – that September 2023 will be the warmest on record in the UK.
So these things are decided in advance now apparently.
Also because the current hot spell is nowhere near the all time temperature record for September for the UK they are doing their usual cobbling together of a meaningless “record” – the most consecutive days over 30°c in September apparently – by one day!
9 days into the month!!!
They will try every trick in the book. Good luck with their ‘declaration’ for September though, as from next week the temperatures look to be around 17 – 18C.
So we had a warm June and early September and a cool July and August.
No big deal.
I can believe that it is a record warm period. I do think there is some warming. From a UK point of view; excellent.
Apologies – last line meant to be after 1st paragraph
Does anyone have John Redwood as an MP?
Judging by some X’s (the app formerly known as Twitter) in recent days he’s become sceptical about wind and renewables being a solution to anything. A letter succinctly outlining why CO2 isn’t a problem that requires solving might be in order.
I regularly visit his website. He knows CO2 isn’t a problem but is cautious of being labelled a “denier”, so follows the route of trying to modify policy. It doesn’t work.
Yep – 🌞😂
A Daily Telegraph Editorial today
Wind power’s benefits have been overblown
A serious debate around energy security is long overdue
TELEGRAPH VIEW
9 September 2023 • 6:00am
Wind turbines are still reliant on subsidies
Advocates for increasing Britain’s reliance on wind power often claim that, on top of its green benefits, it will reduce prices and boost energy security. Massive planned increases in capacity are thus described as an undeniable win-win, with the arguments of critics ignored. But a debate over the virtues of the UK’s current energy strategy can no longer be avoided – and the failure of the Government’s latest subsidy auction for new offshore wind should be the trigger.
No companies chose to bid to build several new wind farms off the coast of Britain, and the ostensible reason was that the maximum price set by the Government for what they could charge for the energy was too low. Companies spent the summer complaining that the price did not reflect increases in their costs.
One firm suspended work on an existing project. It highlights an inconvenient truth: wind generation is still reliant on subsidy to be economic. This, in turn, brings into question its value for money, particularly if the UK remains reliant on fossil fuels to provide back-up power for when the wind does not blow.
But the auction’s failure also leaves a hole in plans to ramp up wind generation by 2030. Ministers want to have 50GW of offshore wind in operation by 2030, up from around 14 GW now. That goal may now be impossible to meet. How, then, will the UK get the power it needs?
These issues are critical to the country’s future. The National Grid also has serious questions to answer about the speed at which it is able to link new generation capacity up to the grid. A reassessment is long overdue.
At 21-05 Hrs today (9/9), coal was producing 3% of demand, according to Gridwatch.
News that will surprise nobody about onshore wind:
https://www.msn.com/en-gb/money/other/wind-farms-gaming-system-to-inflate-millions-earned-when-asked-to-halt-production/
They exaggerate their forecast production when they are likely to be curtailed, which encourages the Grid to accept a higher price for curtailment too. Won’t be so juicy for the new AR5 wind farms that will get no CFD payment when prices go negative (but at any positive price they get their strike price).
With huge discrepancies in how wind farms are treated when curtailment is needed there is soon going to be quite a debate I suspect. The oldest CFDs pay out the full strike price but offer no compensation for negative prices for actual production. The net revenue is mostly going to be too high for them to be willing to compete for curtailment.
More recent CFDs maintain the same position, with the proviso that if there are 6 or more contiguous hours of negative day ahead pricing then no CFD payments are made, leaving them with losses on anything they produce. There have been a few cases where these wind farms have curtailed voluntarily – they are not in a strong position to bid for curtailment payment. However, mostly what happens is that the market is gamed to allow 5 hours of negative prices, followed by 1 hour of barely positive prices, followed by any further period of negative prices needed. In this way they secure payment of the full CFD strike price for all their production, and swallow the negative market pricing, and avoid curtailment unless the grid is truly desperate.
AR5 CFDs offer no payment for any hour when prices are negative, putting those wind farms in the front line for curtailment without compensation.
Most of the onshore plus a chunk of offshore wind in Scotland is on ROCs. ROCs only pay out on actual metered production, so to curtail wind farms have to be paid the value of the ROCs (and REGO greenwashing certificates) they forego, plus any market price (which might be negative). Farms (i.e. onshore) on lower levels of ROCs are first in line for curtailment because they are “cheaper to curtail”.
All this leaves us the punters paying for the most expensive renewables because they are too costly to curtail. ¿Qué? In the normal world the highest cost producer has to back out first to avoid losses, and doesn’t get paid.
O/T but Germany has wind turbine capacity (mostly onshore) of a staggering 66,500MW and even more solar capacity of 69,100MW totalling
135,600MW.Just before sunrise today their combined generation was a colossal…..wait for it…..498MW. Way to go?