The First Ever Off-Shore Wind Farm Financed by Banks...

[editor's note, by Prof. Goose] This is a guest post by Jérôme à Paris from the European Tribune.

I am finally in a position to write about a project that has kept me busy in the past year and a half and that may interest the readers of the Oil Drum...

This Wednesday, a few banks, including mine, signed and disbursed a ground-breaking loan: we put 378 million euros on the table, to build 60 wind turbines in the North Sea, 25 kilometers off the coast of the Netherlands, near Amsterdam. The wind farm, at 120 MW is not the biggest to be built offshore (that title goes to Nysted, built three years ago, which has a capacity of 165 MW), but it is the first-ever offshore wind farm to be financed by banks.

Above is a picture of one of the first piles, built just a few weeks ago. In just over a year, 60 of them will have been planted in the seafloor, have a wind turbine bolted on top, and the farm will start producing electricity - enough to provide power to 125,000 households and to avoid 225,000 tonnes of carbon emissions per year. It will look a lot like this one, North Hoyle, completed in 2004 and which uses the same turbines:

I explained in a diary written almost two years ago what project finance was and how it works, but the principle is simple: you finance a specific asset, and you get repaid only from the revenues generated by that asset, without recourse to the investors that own the project. This is a financing technique that works well for project with well identified assets with high initial investment costs, and strong cash flows after that, like big infrastructure items (toll bridges, pipelines) and energy assets (oil fields, power plants).

Wind farms are quite easy to fund using this project finance mechanism, and it has indeed been done on a wide scale in most Western countries, which have stable regulatory frameworks for renewable energy, i.e. mechanisms that guarantee that renewable energy sources get a high enough price (usually higher than "grey" power, but not always these days with the price increases for gas) for each kWh put on the grid. But so far, offshore windfarms seemed to be scaring banks, for a number of reasons:

  • construction costs are higher than onshore, as you need special boats and equipment to build the turbines, and you need to build a longer cable. The high cost of the cable, which must be borne by the wind farm (as it is built exclusively to connect it to the grid) also means that only larger scale projects make economic sense, thus implying bigger investment outlays;
  • operating costs are also higher, as the marine environment is tougher on parts, and access is similarly more difficult: even minor repairs will require the intervention of a boat and will take more time;
  • more problematic for the banks, operating costs are also more uncertain: there is little track record for offshore operations, and risks are not completely understood, such the long term impact of corrosive salt, and stronger winds, on turbines initially designed for onshore use. Bad weather can prevent access to the farm altogether and mean that even minor technical problems can cost big production losses as repairs are delayed;
  • finally, the issue of the size of the projects (which reach hundreds of millions of euros) has become an issue. Developers can be utilities, but they can be pretty small players; similarly, turbine manufacturers (with the exception of GE and, more recently, Siemens- Bonus) are also relatively small industrial companies. The presence of such small players was not an obstacle in the onshore sector, where the technology is well known, and nimble wind investors proved capable to develop, and these manufacturers to build, the windfarms typically seen onshore, i.e. in the 10-50 MW (or 10-50 million euros) range, and banks were comfortable to support both. For the bigger, longer, more expensive offshore projects, this is no longer the case. How reasonable is it to finance a project costing 400 million but developed by companies with 10 millions euros turnover and built by a company with 50 million euros in annual profits?

The fact that wind is stronger and steadier offshore, and energy production is typically 50% higher per turbine than onshore helps make the case for offshore wind economically more compelling, but does not alleviate the above problems, and both investors and financiers have been reluctant to put money in this sector, despite currently being extraordinarily aggressive for onshore wind assets.

So how did we solve this?

Now, I have to walk a fine line not to reveal any confidential information, so I'll use the press release which is in the public domain, and explain some bits briefly:


The financing structure includes a number of novel features to mitigate the risks associated with the construction and long term operation of wind turbines at sea, including the availability of a contingent facility (jointly with contingent equity provided by ENECO) to cover potential cost overruns or delays, cash sweep mechanisms and specially tailored availability guarantees under the operating contract with Vestas that allow debt service to continue even during periods of lower availability than expected. The project also benefits from a comprehensive, 11-year insurance programme with Delta-Lloyd N.V.

  • Availability of a contingent facility. That means that we have some additional funds available should there be unexpected spending or problems that cause the production (and thus revenue) to be delayed. We rely on fairly standard construction contracts, which have a given price and date, and usually include penalties if commitments are not meant, and I'm certainly not going to give ideas to people that there is more money out there to be spent. There will need to be real problems that are not covered by normal contractual terms, and banks will have a final say on whether any money is provided. But it is fairly unusual for banks to put up such reserves (usually, this is done exclusively by the investors), and we've done it in this case because it gives us additional control over construction and a higher certainty that the project will be built successfully. We've been willing doing this because we have studied the plans and contracts in much detail and are comfortable with the technical challenges, the solutions used to solve them and the backup plans.
  • Cash sweep mechanisms. That simply means that if the project is successful, we get repaid faster, by taking ("sweeping") a portion of the surplus to reimburse the loans. Banks always use more conservative revenue estimates than investors to have a higher certainty that such revenue levels will always be reached - and make it possible for the debt to be paid. If thing go well, of even just as expected, there will be more revenue than the banks plan, and the investors will make a lot more money. So in this case, we have a right to a portion of these extra revenues in the "better-than-the- pessimistic-scenario" cases. That means that it is actually quite likely that we be repaid faster than we expect. We don't earn more, but we take risk over a shorter period, and it does lower the rate of return of the investors (as their own income is delayed by these payments).
  • Availability guarantees. That's the operator, Vestas, guaranteeing that its turbines (which it will be running and maintaining on behalf of the investors) will indeed produce the expected amounts of electricity, and agreeing to pay penalties if the production levels are lower than guaranteed. I cannot go into much detail here, but the general principle here is that these guarantees should not only cover the impact of lower revenues for the investors, but rather for the lenders. So the penalty payments take place for really degraded performance, rather than for slightly degraded performance, in order to ensure that there is still some income in the project even if things go really bad (if things go a little bit bad, we are covered to some extent by the fact that the banks already count on things going less well than normal as their "base case" scenario).
  • Insurance programme. That's fairly simple: you can buy insurance that compensates you if some things that should not go wrong do go wrong. Insurances make money because they charge you a slightly higher fraction of revenues than the probability of that thing happening. Risks like lighting, boat accidents, mechanical failures or weather events are known to insurers and they can quite easily quote prices for such circumstances. In this case, the project has managed to get insurance coverage for a fairly comprehensive set of events, which brings additional comfort to the lenders.

For those of you that know the business, this is all maddeningly vague, I suspect, while those of you that do not know much finance will probably already find it unbelievably complex and mind-numbing. Let's say that this is a compromise between the desire to explain what we did and the confidentiality requirements inherent to this job, and it may be slightly frustrating.

I will say that I am extremely proud of having brought this project to fruition, and I will further say that I consider that I had an instrumental job in getting it done, and I think that this financing will be a reference and a model for future transactions. I also consider myself lucky to work in a sector where I can do some good for the planet and which is fully compatible with the political ideas that I push here.

Thanks PG for crossposting this here. I'll be around in the next couple hours (and later in the day) to answer questions or discuss any other issue as much as I can (subject to the confidentiality rules I have to follow).
Can someone explain to me why those blades seem to be pointing in different directions?  Shouldn't they all be facing together into the wind?  Are they steerable?  Or are they fixed and staggered in direction to average out inconsistant wind patterns?
In this case, I suspect that it is because some of them are not functioning yet. That picture was taken before the windfarm was fully commissioned.

Maintenance would be the usual reason.

Great job Jerome - two questions:

1) what is status/climate of these type of bank financings for large wind in US (offshore)

and

2) to finance such a project, does the bank/utility do a risk adjusted view of electricity flows based on a certain discrete timeframe? In other words, do the terms of a project get better if the wind fits nicely into an electricity portfolio, adjusted for shortfall risk? Or is it just looked at in MW potential itself, and the other componenets of the affected electricity grid are viewed exogenously?

  1. I'll admit that I'm not following all that closely US projects as we have a team in NY - we get consulted when projects get close to the stage where banks need to take decisions (bidding process to be selected, por apporval process for a mostly or fully negotiated transaction). So far, we have not been consulted, and my bank is one of the leaders on the North american market, so they are presumably following the projects underway.

  2. No, we just want certainty that all kWh produced will be sold, and that they will get a price we can understand. In the US, that means either taking merchant risk, or getting a PPA. After the merchant power plant bloodbath a few years ago, merchant risk has gone out of fashion, and we usually require a PPA for the full volume produced, and with a acceptable price formula (fixed, or merchant with a floor). The management of the intermittancy is passed on to the utility that buys the electricity. In any case, we do not want to have to bear the "balancing costs" that may be imposed on wind projects (udually this is covered through a lower priced PPA by the utility that then manages its own supplies)
You mention PPA (Power Purchase Agreement) for the wind generation, but if a wind facility is able to sign such an agreement, it seems that financing becomes simple and the need for the novel features you mentioned (contingent facility and equity and cash sweeps) are not necessary.

Here in the US, the PPAs for wind are getting harder to obtain because of the second point you mentioned - the management of the intermittancy - which has become a burden for the local utility. I took that the structure you described took these burdens and mitigated them through the cash sweep mechanisms and guarantees...did they not?
Does the Vestas guarantee only cover low availability caused by mechanical failures rather than lack of wind?  If so, does the contingent equity cover the risk of intermittancy and the utility's other generation steps in?  do the cash sweep mechanisms true up in times of no wind? or is this site lucky to have a high capacity factor?
Very interesting stuff, would love to learn more and figure how to apply and solve the intermittant issue over the pond here in the US.

This is offshore. These features are there to cover for uncertainty in construction schedule and then on operating budgets - for which there is little track record.

Intermittancy has to be managed outside the project; it's too much of a burden for a single project.

There is never any coverage for lack of wind. We rely on statistical analysis and cover ratios that protect us even if you have a low wind year - that's true onshore as well.

Nate,

I have a friend with a finance degree who works for the insurance industry and finds interesting places to invest the money.  He has helped finance 2 wind farms in the U.S. via bond issues.  My limited understanding is that there are commercial bonds generated by companies that are underwritten by a variety of insurance and other industries that want return on investment.  The bonds then pay back at a fixed rate of return.  Very nice for insurance companies that want steady returns but don't want to rely on banks or the stock market.  The wind farms themselve were put up by utility companies and they obtained financing via the bonds from a number of entities pooling the money.  The farms were on the order of 150-250 megawatt in the midwest.  These are 150-250 1 megawatt turbines on ridges and wind corridors.

So I think the money is there but maybe not as concentrated as the European banks.

From the E-Connections website on the Q7 windfarm, I found this: "For safety reasons the Ministry of Transport, Public Works and Watermanagement will close off a zone of 500 meters surrounding the wind farm for all ships." Can anyone say whether this closure is permanent or just for construction? Is such a closure a usual occurence for an offshore wind farm?
It will be permanent, I imagine, to avoid collisions at sea. The farm was built outside of shipping lanes, radar areas, birs migratory paths, pipelines; etc..., so that area was not used in anyway. Now it is used and thus has its buffer zone on the maps. In practice it should not change much.
Does this exclude all comercial fishing as well?  What does the opperator pay for the use of the sea area?  I'm curious to know if such developments might be good for the fish stocks.
Horns Rev in Denmark has been good for fish stocks.
Hi Jerome,

I live in Portland, OR and desperately want to get in the business you're in.  I have mostly a marketing/management background and no science.  What can/should I do to try and get my foot in the door?  I have an interview with Invenergy Wind LLC, but other than there doesn't seem to be many positions out here.  Vestas US is located here, but they only hire people with BS and experience.

Any help or advice you could give would be GREATLY appreciated.

ps- great work!!

Hey folks--this is a great article to pass around to reddit, digg, del.icio.us, metafilter, stumbleupon...etc., etc.  Don't forget to do it (the icons are up just under the tags at the beginning of the story.)
PG, are there any specs that break down the 378 million euro cost by labor, concrete, steel, cable, future maintenance, and so on?  I'm curious about the details of why each windmill costs 6,300,000 euros ($ 8 million US).  
from the link given by Jerôme:
The financing includes EUR 219 million, 11-year, non recourse long terms facilities and EUR 160 million short term construction facilities. The long term facilities are fully underwritten by the Mandated Lead Arrangers and EKF, which guarantees EUR 68 million to support the export of Vestas equipment from Denmark.

68 / 60= EUR 1.13 million per wind turbine.
Very roughly:
Foundations, cable, electrical equipment: 50%
Turbines themselves: 35%
Development costs, financing costs, other: 15%

The cable is pretty expensive because the windfarm is more than 25km (15mi) offshore. The financing costs appear huge, but some of it is to fill reserve accounts (i.e. money that stands there and is available in case of big problems) that are given back to the investors when the debt is fully repaid.

If it is going to be very similar to North Hoyle...from what you know, has North Hoyle been a success?
North Hoyle is doing okay. Both are actually successors to Horns Rev, the first large scale offshore windfarm (160 MW - 80 V80 2MW turbines) which "enjoyed" significant problems - Vestas had to bring back all the turbines onshore to replace various parts.

The experience has been learnt, and the new version of the turbine is a lot more marine-eady than the earlier one was.

Above is a picture of one of the first piles, built just a few weeks ago.

I must have stared at that picture for 10 seconds, thinking "That looks like no wind turbine I have ever seen." :-)

Pass that. :)
Its one of the new lightweight turbines, they are a low bat and bird kill style.
It employs state of the art stealth technology!
So this may be a stupid question, but could you elucidate the distinction between "the investors" and the banks?  In my usual understanding, the investors are the folks that put up the money and take the risks; that is, they finance the project and are compensated for their risk with revenue returns.  But it sounds like the banks are filling that role here, so what are the investors doing?
Investors own the project, put up equity, then borrow some of the investment costs (from us) - that pays a fixed interest rate which does not eat in their profits and allows them a higher rate of return as they put up less cahs initially.

We're happy with the lower return because we get the money out first and take less risks than them (the first money the project loese is theirs, not ours).

Jerome,

something I notice time and again and can't seem to figure out:

your project supplies over 1000 homes per MW, a number that is pretty standard for European wind projects

but when I see US numbers, it's standard that 1 MW covers only a third of that

what gives?

I wonder if has anything to do with the larger, less energy efficient homes and appliances in the US? Large empty rooms, air conditioning, poor insulation, giant stoves, fridges, washers, driers, ...
Waste in the US, of course.
Perhaps a less negative explanation is available. Let me suggest that when wind farms are discussed in the US, the nominal availability of 30% used. For example, when the Long Island Offshore Wind Farm is discussed, its output is described as "140MW, enough to power 44,000 homes". This represents the average output of the wind farm over time.

It would seem that the Europeans are overstating the output from their wind farms.
US consumption in 2005: just above 4,000 TWh, or 13,000 kWh per person per year. Europe is just under 10,000 kWh per person per year, I think

A wind MW produces 2,500 MWh per year onshore, 3,500 MWh offshore, i.e. enough for 250 people / 350 people respectively. But that's for total electric consumption.

If you take only household/residential use, it's just above one third of total consumption, which brings us back to our 1,000 people per wind megawatt.

Not sure how many people per household, though.

I see your logic, but I'm not sure if we're talking about the same thing. I believe that the benchmark "1MW per 1000 homes" is used to give Joe Homeowner some context when considering energy issues, with the focus on demand/capacity. It's implied that 100% of the MW would be going to the 1000 houses. I don't believe it's meant to address the total energy picture.

That's the only ratio I've seen and I'll grant you that it's most likely very stale. From my personal experience, my household (consisting of two adults and three children) uses 12,000kWh in a twelve-month period. Averaged over the year, that 1.3kW for my household. So, the number of households per MW should actually be less based on my consumption (770 households per MW) and a 140-MW wind farm would on average serve only 34,000 households.

In reality, sometimes (not much of the time), that 140-MW wind farm will serve over 100,000 homes. Other times (also infrequently), it won't power any homes.
Thanks for the input Jerome,

my thing is when I read differences like that on a consistent basis is I start to think: is the US number based on capacity factor perhaps?

more/less people per household could be, you got a point
it's not as if Europe is renowned for its insulation....

something to check once and for all.

Jérôme,

Any thoughts about the proposed floating structures based on oil platforms?

Is this something viable in US waters or would hurricanes destroy the turbines?

Also the piles, are they poured concrete or a jacket with a penetrating metal pile?

Also why don't all the fixed position offshore rigs have these? the structures are there would that not be cheaper?

matt

Jérôme,  Nice Post.  Thanks.

This type of active financing for windpower would seem to put the spike through the heart of the nuclear option Dracula.  With all winds advantages (high EROEI, scalability, reliability, predictability, no decommissioning costs, no terrorist threat, generates income from the get-go) how can nuclear even be considered?

It must also have an impact eventually on ethanol production in the US.  Any farmer given a choice between a problematic ethanol market and a nice, quiet windmill generating royalties for his retirement will choose wind.  He can always sell part of his crop for ethanol, and the windfarm will still pay him royalties!



This type of active financing for windpower would seem to put the spike through the heart of the nuclear option Dracula.  With all winds advantages (high EROEI, scalability, reliability, predictability, no decommissioning costs, no terrorist threat, generates income from the get-go) how can nuclear even be considered?

Well, for one thing, nukes can operate 24/7, 365 days a year, without regard to weather. Wind power can be very intermittent. Wind farms also occupy a great deal of physical space (which is why putting them offshore is a good idea). As noted above, the largest offshore wind farm built thus far only outputs 165 MW (when wind is favorable) - compare that to about 1000 MW for a mid-sized nuke.

None of this is to say that I oppose wind farms. Actually, I think they are an excellent idea. Just the fact that they can be constructed in about a year is a major plus, especially when compared to a typical 5-year construction period of a nuke plant.

So yes, three cheers for wind farms - I hope we build more of them. But I still don't think they eliminate the need for nukes or some other form of base electric power generation. It's never a good idea to put all your eggs in one basket.

A couple of caveats:

  • I'm not sure anyone builds nuke plants in 5 years, even the Finns are 18 months behind (the French, maybe).  7-10 years is more realistic (including planning and planning appeals)

  • nukes don't operatre 365/24, at best maybe 90% of that.  The UK National Grid does not give a nuclear plant a capacity credit of anything like 90% (more like 70%).

  In fact, if you take into account periodic downtime (perhaps as much as 6 months every 7 years) they can operate a lot less than that.  I'm not sure, but I don't think most nukes can operate and refuel at the same time?  Similarly they don't always operate at full capacity.  The long run average operating performance of nuclear power plants has not been good, although the top quartile has been excellent (things you don't think of: during recent heat waves, EDF has had to shut down its nukes because of shortages of cooling water).

I am the son of a nuclear power plant builder (the programme crashed, leaving the Ontario taxpayer with a $30bn stranded debt).  So I am not inherently anti nuke.

But we should never believe claims nuclear power is 'cheap' (item: UK nuclear decontamination liability, present value of future liability, is £70bn aka USD120bn, and 8/9 UK reactors are running at reduced capacity due to cracking).  Decontamination and waste disposal alone means that nuclear power is not cheap.

What we can say about nuclear power (and why I favour it, to an extent) is that it is ideal for baseload, and with a realistic charge for CO2 (the Stern Report suggests £85/tonne CO2 ie £200/tonne for Carbon), it is competitive (just not cheap).

I use a figure of 8 cents/ kwhr as the long run cost of nuclear power.  MIT's 2003 study had a much lower figure (but was using the 2002 gas price as a comparator, which of course is half the prevalent gas price now), but I don't think that has ever proven out in real life, nor do I think it ever will in a US/UK political and safety environment.  I can think of reasons it might fall to 7 cents (economies of scale).


Capacity factors for nuclear plants in the USA, including maintenance downtime, have been 85-90% on average.

There has been major improvement due to learning better management, and technology.

The problem I have with that is that we are extrapolating the performance now to the performance of the entire technology over its life cycle.

Historically, it has never met that-- far from.  My point that a 90% LF this year, may not be a 90% LF over the whole lifetime (if the plant is shut down for 6 months for maintenance, say).

Nor would it be applicable to a 3rd Generation design, until they have significant operating experience (the first, the Finnish one, isn't even running yet).

I accept that we build and run nukes better than we did at the time of Three Mile Island (I hope so!).  But the Ontario Hydro debacles were actually in the late 80s, so maybe learning wasn't that widespread.  Japan's cracking problems have emerged subsequently.  And the British Energy problems are now (albeit on reactors completed in the late 70s/ early 80s).

These are complex pieces of machinery, operating in high stress environments, that we are running for 40+ years, so inevitably they degrade, and sometimes in unpredictable ways.

My overall take is that nuclear is no nirvana-- it's neither cheap nor perfectly reliable.  Neither is wind, but wind could be 20% of electricity consumption (more if we get cleverer about storage technology).  Only a handful of countries are likely to have nuclear sectors, long run, larger than that.  

Which doesn't mean we shouldn't have nuclear, particularly in the 'coal heavy' power generation countries (US, UK, China, India, Poland etc.).   Let's just be realistic about the cost of power from that source.

Nuclear has downtime, but most of it is planned downtime.  The capacity factor for nuclear has a higher quality than the capacity factor for intermittent sources like wind or solar.