DAY THREE EWEA OFFSHORE FRANKFURT 2013 ewea.org | rechargenews.com Produced by RECHARGE

SCALING DOWN: EWEa’s Jacopo Moccia says that achieving current European offshore targets is ‘extremely unlikely’

nprecedented political The EWEA survey, Where’s the uncertainties could force Money Coming from? Financing Uthe European offshore Offshore Wind Farms, suggests 40GW goal wind industry to slash its 2020 the industry would need to raise target from 40GW to about 27GW. up to €123bn ($165bn) by the An EWEA survey, using end of the decade if it is to meet research from Ernst & Young, its 40GW target for installed illustrates how difficult it will be capacity. could be for the industry to raise capital at However, it points out that a time of high regulatory risk. should regulatory instability One senior source tells prevent the industry reaching Recharge that EWEA members 40GW, even a conservative are actively debating whether to assumption of 25GW would blown out formally abandon the 40GW require up to €69bn over the next target in favour of something seven years. The survey says much lower but more achievable. investment is being blocked by EWEA chief executive Thomas the uncertainty caused by Becker tells Recharge: “We can’t of the water pretend this shortfall is not a Continued on page 2 problem. We are having a big discussion about it. Hopefully this situation will be resolved, but RECHARGE Europe may have to accept a smaller I can’t predict what the results of PROduCER OF tHE EWEA OFFSHORE daiLiEs Visit us at stand 30F34 Photograph | Jason Bickley/EWEA Photograph offshore target, writes Christopher Hopson those discussions will be.”

EWEA001_20112013 1 20.11.2013 19:55:22 EWEA OFFSHORE 2013

Bernd radowitz ermany risks gradually Don’t throw losing its offshore wind Gindustry to other countries if the incoming government doesn’t show it is it all away, firmly committed to expansion, warns Norbert Giese. The vice-president for offshore at turbine manufacturer Giese warns REpower told a press conference at EWEA Offshore yesterday: “It would be stupid to deliberately destroy an industry that took us Germans ten years to build up. “It would be as if Saudi Arabia decided not to produce oil any longer,” he added, comparing the potential of the to harness offshore wind energy with that of the Middle East kingdom pumping oil. In the coming five to 15 years, will probably represent a quarter of the global offshore wind market, second after the UK, which will account for 40-50%, Giese said. But the industry will only stay in Germany if it provides a big enough domestic market for it, WAKE-UP CALL: he added. Norbert Giese in Without the right policies, the Frankfurt offshore industry operating out of the North Sea ports of Emden and Bremerhaven, and the Baltic conditions, Giese warned. The and the , wind development, other parts harbours of Rostock and UK and are pursuing and are also very of the world, particularly East Sassnitz — together with 18,000 active policies to lure offshore attractive to the industry. Asia, are waking up to the jobs — could gradually move to wind investments and While regions outside Europe potential of the technology, he countries providing better production facilities, he said, are lagging behind in offshore cautioned.

European industry may have to lower its sights From page 1 grid connected wind by 2020” 25-30GW by 2020, instead of until more questions around 40GW, we would still have to changing regulatory frameworks, future activity are resolved. find up to €69bn by the end of mainly in the two largest offshore “By the end of this year we the decade. markets, the UK and Germany. should have done around 7GW “So we are going to have to “By undermining investment of offshore wind in Europe, but think very hard about this 40GW stability, governments are putting this still leaves us with 33GW to objective. Considering what is green growth, jobs and a do in the next seven years, which happening in Europe, we may world-leading European industry is looking extremely unlikely,” have to revise our objectives for at risk,” says Becker. “Stable Moccia concedes. wind energy for 2020.” national frameworks and a “So we still have to persuade the The 40GW target put in place binding EU financial sector to commit this by the European wind industry target for 2030 will be a green money. However, until we have in 2009 followed a process light to investors and ensure the resolved these industry problems, whereby each EU member state industry continues to flourish.” no financier is going to put up to submitted a National Renewable Jacopo Moccia, head of €123bn into an industry with so Action Plan outlining how they political affairs for EWEA, tells much regulatory risk. intend to meet targets and what WARNING: Thomas Becker Recharge that “we can’t seriously “Even if we said that we are role each renewable technology

Photography | Erik Luntang/EWEA Photography talk about achieving 40GW of now, as an industry, going to do will play.

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EWEA002_20112013 2 20.11.2013 19:55:42 EWEA OFFSHORE 2013 Clarify wind rules, Dong urges Merkel

Bernd radowitz

ong Energy has urged Angela Merkel to clarify Dthe future of Germany’s support system for offshore wind. The utility has written to the chancellor and her environment minister, Peter Altmaier, asking them to provide certainty about what happens when the current “compression model” expires in late 2017. SUPPORTING The compression model offers LETTER: Dong higher feed-in tariffs (FITs) for has written to Angela Merkel and offshore projects in the first Peter Altmaier eight years of operation, to help companies meet upfront investment costs. After that, FITs tells Recharge. “We have written Riffgrund 2 project in Germany’s “will not put more than €1bn fall to a lower-than-usual level. a letter to the chancellor in North Sea. [$1.35bn] at risk” with only an To qualify, projects must be grid- which we’re trying to address The Danish utility has received eight-day margin. “That, even for connected by 31 December 2017. this and highlight these issues. I an unconditional pledge by Dong, is too ambitious.” “There needs to be some kind think in general they are aware.” transmission system operator He adds that if there is no of certainty over what happens Because of the regulatory TenneT to connect the project to visibility in Germany, the post-compression model,” Lars uncertainty, Dong is holding the grid by 23 December 2017 company will spend its money Thaaning Pedersen, Dong’s head back on an investment decision — but Dong says that is too late. in the UK, Denmark or

Photograph | DPA/PA Photograph of European wind development, on its 300MW Borkum Pedersen says his company will elsewhere.

EWEA003_20112013 1 20.11.2013 19:49:12 EWEA OFFSHORE 2013

KARL-ERIK STROMSTA CfD strike he UK’s draft Contract for Difference (CfD) strike Tprices are more than price is ‘good sufficient for E.ON’s 700MW Rampion project, claims an executive, whose support for the renewables support system flies enough’ against criticism of the British government by other developers. “We think [the draft strike price] is good enough at £155 [$250] per MWh — certainly for our Round 3 Rampion project,” said Michael Lewis, managing director for E.ON Climate & Renewables, speaking yesterday at the Recharge Thought Leaders Brunch at EWEA Offshore 2013. Several other big developers operating in the UK — including RWE and — have reacted coldly to the draft strike price, suggesting they may not build projects unless support is energy industry is in “crisis”. E.ON is currently building the tendering process for offshore increased. “Much to my surprise, [the 288MW Amrumbank West wind, which is the UK Despite the bruising energy UK’s Offshore Transmission project in the German North Sea government’s ultimate intention. debate under way in both the UK Ownership regime] has been a and the 219MW Humber “[Doing so] reveals the price of and Germany, Britain has really good innovation,” Lewis Gateway in UK waters, and each project rather than a PL pl pl pl p lp lp l pl p, reports Karl-Erik emerged as a much more said. “It’s working very well, in submitted a planning application one-size-fits-all, because we all comforting destination for contrast to the German offshore for Rampion this year. know there’s a big difference Stromsta investment than Germany, claims grid-connection system, which Lewis supports moving the CfD between [Forewind’s 9GW] Lewis, who says the German has been a big, big problem.” system towards a competitive Dogger Bank and Rampion”.

Insight at Thought TOP TABLE: Leaders VIP brunch From left: Michael Lewis, Andrew Valuable insights about the Garrad, Johan state of the offshore wind Sandberg and market were heard at the Henrik Stiesdal Recharge Thought Leaders VIP brunch at EWEA Offshore yesterday morning. Here are a few highlights of what the four main speakers said:

Henrik Stiesdal, Siemens We’ve benefited from society wanting us to be here, even at a very significant premium. But society’s patience is getting very stretched right now. And many of us, if we were not in this industry, might feel the same way if we’re honest with ourselves.

Michael Lewis, E.ON Climate & Renewables It’s not that utilities — and certainly not E.ON — are against Andrew Garrad, EWEA in Korea, even in America. So on the other side of the value renewables. What we’re saying If you’d asked me five years for offshore wind globally I feel chain you have foundations, is, yes we support renewables, ago whether anybody outside positive. which perhaps don’t fit that but we support them in the Northern Europe would be Johan Sandberg, DNV GL well with the installation context of a market that interested in offshore wind, The offshore wind value chain vessels. So we want to better functions properly and keeps I would have said no. We’re has been sub-optimal in many integrate the value chain the lights on. And that bit of the now seeing export markets ways. Vessel owners might so we don’t have this sub- message is not getting through. emerging in Taiwan, in China, optimise their vessels, but then optimisation.

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EWEA004_20112013 1 20.11.2013 19:38:44 EWEA OFFSHORE 2013

Offshore ‘essential’ to MEASURING UP: A Fraunhofer IWES Lidar buoy in the German Energiewende North Sea

Bernd radowitz scenarios with higher shares of “Further potential for PV, wind turbines at sea can onshore wind or PV, says the significant cost reductions would provide electricity almost every ffshore wind energy is Fraunhofer Institute for Wind come from a joint European single hour of the year with “absolutely essential” Energy and Energy System North Sea offshore grid,” the about as many operating hours Ofor the success of the Technology (IWES). Flexibility study says. as fossil-fuel power plants, the Energiewende — Germany’s costs arise from backing up “A renewable-energy mix with study stresses. transition from nuclear power to renewable power and the a large share of offshore wind “They produce power about renewables — and will push down curtailment of projects’ energy is more cost-effective in 340 days per year, and that overall costs by billions each year, electricity output. the long term than a generation power production can be according to a study presented at From 2050 onwards, flexibility mix without this technology.” forecast fairly accurately. EWEA Offshore yesterday. costs would be €2.9bn ($3.9bn) Offshore will also ensure the “The turbines are also much In the report’s “optimised higher in a scenario with security of Germany’s power better equipped to provide growth scenario” — in which the limited offshore output and a supply and has high system operating reserve than other country’s offshore wind capacity higher onshore capacity. They quality thanks to its excellent fluctuating renewable-energy would be boosted to 54GW by would be €5.6bn higher if there power plant characteristics, the sources, and therefore play a key 2050 — so-called “flexibility was a massive build-up of PV researchers point out. role in stabilising the power

Fraunhofer IWES | Fraunhofer Photograph costs” will be far cheaper than in instead of offshore wind. Contrary to onshore wind or system.” TenneT | iStockphoto | TenneT Photography

EWEA005_20112013 1 20.11.2013 19:47:03 EWEA OFFSHORE 2013

VIEW FROM THE TOP: nick Clegg is deputy prime minister in a uK government that is deeply divided over offshore wind

Fugro to do UK and Germany losing Sheringham their offshore advantage Shoal surveys CHRISTOPHER HOPSON KARL-ERIK STROMSTA at a time when momentum is also important markets for critical. onshore wind and PV. Scira Offshore Energy has he UK and Germany are The British offshore industry is Europe’s broader renewables commissioned Fugro EMU losing ground as the in a state of “heightened sector has seen its lustre dim. to perform hydrographic Tworld’s most attractive uncertainty” ahead of the 2015 While several EU countries and geophysical surveys at countries for offshore wind general election, with — including France, Denmark Sheringham Shoal investment because of their disharmony on energy policy and the Netherlands — saw their and along the export cable and squabbling politicians, says Ernst seeping throughout the political position on the 40-nation index transit routes. & Young (EY). system, EY says. improve, they were more than The 317MW site, which hosts With respect to offshore wind, Germany is “faring a little offset by the declining prospects 88 Siemens 3.6MW turbines and the UK and Germany still hold better”, although there too the of others. two offshore substations, is about commanding leads atop the government has backed away The sharpest adjustment was 20km off eastern England. consultancy’s quarterly rankings from the more ambitious handed to erstwhile renewables The latest surveys, a of the attractiveness of global attitudes it held until recently. heavyweight Spain, which requirement of Marine renewables markets. Offshore wind is crucial to the tumbled to 19th place from 13th Management Organisation But the gap separating them overall attractiveness of three months ago, to rank behind licence conditions, will provide from the next two countries on renewables investment in the Brazil, Chile and Portugal. In detailed scour surveys around the list — China and the US two countries, although both are onshore wind, Spain is no longer each monopile foundation, as well — has shrunk significantly in considered a top-20 market by EY. as bathymetry along the areas of recent months, with politicians dropped two places to export and intra-array cables. apparently at “stalemate” over RECHARGE 27th as the prospect of clinching Fugro EMU will obtain how heavily to emphasise PROduCER OF tHE EWEA OFFSHORE daiLiEs a wind-export deal with Britain high-resolution data using its Visit us at stand 30F34 Photograph | Getty Photograph offshore wind in the years ahead, this year fades. latest multi-beam echo sounders.

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EWEA006_20112013 1 20.11.2013 19:51:14 EWEA OFFSHORE 2013

DARIUS SNIECKUS

lstom has finally installed the world’s Alargest offshore turbine Alstom — its 6MW direct-drive Haliade with a 150-metre-diameter rotor — off the Belgian coast. installs The French manufacturer had originally hoped to erect the turbine at the Belwind wind farm by the end of last year, but the largest project slipped to April and then July due to bad weather, before this week’s latest attempt. offshore “This project with Belwind asserts our technological leadership and our innovative abilities,” says Alstom Wind senior turbine vice-president Alfonso Faubel. Built at Alstom’s Saint-Nazaire RISING POWER: fabrication yard on the Loire The 6MW Haliade 150 in Estuary in Brittany, northwest place at Belwind France, the 1,500-tonne Haliade is being trialled atop a 25-metre- tall four-legged steel jacket, after installation by Fred Olsen turbine has a 15% better yield industrial partner, has €2bn supply a Haliade for the UK Windcarrier vessel Bold Tern. than rival 6MW models. ($2.7bn) plans for the three Energy Technology Institute’s Its rotor carves out a swept area A consortium led by EDF French offshore zones totalling floating tension-leg platform of 17,860 square metres, and Energies Nouvelles and Dong 1.43GW that it won last year. demonstrator, to be installed off

Photograph | Alstom Photograph Alstom calculates that the Energy, with Alstom as its Alstom is also signed up to southwest England.

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EWEA007_20112013 1 20.11.2013 19:40:11 Careers Day Come to our Careers Day if you’re: l concerned with recruitment issues and would like to contribute to the Happening today debate Sharing is Caring: Wind Energy & Risk business? Managing the Grid-Integration Issues for Offshore l working in human resources and Other Sea Users Environmental Impact of Offshore looking for recruitment solutions 09:00 - 10:30 (Panorama 1) Wind 11:00 - 12:30 (Panorama 3) l looking for a job in the offshore wind With offshore wind growing apace 11:00 - 12:30 (Panorama 1) Broader technical grid-integration sector on a global level, the installation and During this session, delegates will issues are addressed, including grid l want to know more about market operation of wind farms poses a learn about different approaches to connection requirements specifically trends and training opportunities in challenge to other uses of the marine assessing the marine environmental for plants, DC the offshore wind sector space, especially in Europe. Such effects of constructing and technology and related items. Also l working at a university and able to challenges can lead to conflicts or operating offshore renewable energy under discussion, is the ENTSO-E offer study programmes for students to benefits, depending on how they developments. The session explores HVDC network code that is currently interested in the offshore wind are addressed. Here we discuss the the issues from a range of viewpoints, under development. sector potential for cooperation between the covering regulatory/policy; industry offshore wind industry and other sea and wider stakeholder perspectives. The Careers Day at EWEA Offshore users (fisheries and other renewable 2013 will centre around the following technologies). events and activities:

EWEA008_20112013 1 20.11.2013 13:56:18 Careers Day Come to our Careers Day if you’re: Employment and skills seminar Exhibition visiting time l concerned with recruitment issues 09:00 - 10:30 (Room Kontrast, Hall 3 14:00 - 15:30 and would like to contribute to the via east) Last chance to meet with the 400+ Happening today debate The session will look at new leading companies of the offshore Grid-Integration Issues for Offshore l working in human resources and challenges and opportunities in the wind industry and further develop Wind Power looking for recruitment solutions area of employment and skills, how to your business opportunities with your 11:00 - 12:30 (Panorama 3) l looking for a job in the offshore wind secure retention of trained personnel future partners. Broader technical grid-integration sector and facilitate transferability of skills issues are addressed, including grid l want to know more about market from similar sectors connection requirements specifically trends and training opportunities in for offshore wind power plants, DC the offshore wind sector Matchmaking and HR technology and related items. Also l working at a university and able to advisory services under discussion, is the ENTSO-E offer study programmes for students 10:00 - 15:00 (Restaurant Trilogie, HVDC network code that is currently interested in the offshore wind Hall 3.1) under development. sector Greenfish organises free-of-charge HR advisory services in order to answer The Careers Day at EWEA Offshore companies’ HR-related questions and 2013 will centre around the following advise candidates/employees on their events and activities: career path.

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REC010_20112013 1 20.11.2013 12:16:48 EWEA OFFSHORE 2013

SURFACE TENSION: The cable-laying process can add nearly $100m to the cost of a 500MW offshore wind farm Cable firms fishing for a solution Making this expenditure even the country’s fishing rights, Fishermen are adding a huge burden to more wasteful is the reality that complicating any possible move to the UK offshore wind industry in excess trawlers typically avoid offshore shake up the system of allocations. wind zones anyway, not because Zymelka acknowledges that as cabling costs, reports Karl-Erik Stromsta of the subsea cables (which are turbines grow larger, so does the buried and therefore not a threat), space between them, offering a nreasonable demands by companies such as the but because of the dangers posed broader scope for fishing within the fishing industry are Netherlands’ Visser & Smit by the turbines, Zymelka says. wind zones. Uadding hugely to the cost Marine Contracting (VSMC), “It’s a consents and permitting But he points out that with of the UK’s offshore wind Norway’s Reef Subsea and — issue for the offshore wind many European fisheries already programme, claims a subsea since its acquisition of Global industry, in that fishermen and severely depleted, fishing within cabling expert. Marine Systems (GMS) last year trawlers don’t want to be wind zones could be limited to The main reason infield cables — Italy’s Prysmian. prohibited from doing their more environmentally are buried at offshore wind farms VSMC laid 202km of in-field business within offshore wind sustainable methods, such as line is to protect them from fishing cabling at the 341-turbine farms,” he adds. fishing. “Local fishermen, in their vessels that drag equipment along , nearly 90% of “It seems always to be the case relatively small boats, would be the seabed — an environmentally which was buried. that wherever we happen to be welcome. They’re not going to damaging form of fishing. The UK Crown Estate estimates laying cables turns out to be their damage any cables that happen Antony Zymelka, director of that the array cable-laying favourite fishing grounds. But at to be on the [seabed] surface.” the Zytech Subsea Cables process adds £60m ($96m) to the the moment they don’t do their GMS veteran John Davies, now consultancy, says prohibiting such cost of a 500MW offshore wind business in there anyway.” business development manager types of fishing within offshore farm, at a time when bringing The Crown Estate, which owns at Canyon Offshore, agrees that wind zones would give developers down costs is crucial. the UK’s seabed, does not own in some cases burial work has the option of not burying infield been excessive, but says a blanket cables, or perhaps burying them move towards no burial in shallower trenches, which whatsoever would be swinging would be cheaper to dig. too far in the other direction. “On a typical 100-turbine Each project should be evaluated [offshore wind project] you’d in its own right, Davies believes. immediately save tens of millions For example, the biggest threat to of pounds on installation,” cables at Eneco and EDF’s future Zymelka told a conference in Navitus Bay project, near the Isle London. of Wight off southern England, Array cable installation and THERE’S A CATCH: The wind industry wants to would probably not come from burial at offshore wind farms is a change fishing practices fishermen, but from anchors

TenneT | iStockphoto | TenneT Photography major growth avenue for thrown over the side of yachts.

EWEA OFFSHORE 2013 | DAY THREE 11

EWEA011_20112013 1 20.11.2013 14:24:21 EWEA OFFSHORE 2013

BERND RADOWITZ

groundbreaking five-year study on the ecological Aimpact of the Alpha Ventus offshore project has concluded that there were “no negative impacts on the marine environment” — yet many positive ones. Fears of a depopulation of the marine fauna or massive deaths of birds proved to be unfounded, says Germany’s federal maritime and hydrographic agency, BSH, which gives out permits for the country’s offshore wind projects. “That is good news for the further development [of offshore wind],” says BSH president SMOOTH SAILING: REpower turbines Monika Breuch-Moritz, who led at Alpha Ventus and co-ordinated the research. To the contrary, artificial reefs have formed at the 12 foundations at Alpha Ventus, where mussels, sea anemones and starfish have Alpha Ventus has not hurt settled. With specialised sonar equipment, the researchers also marine life, BSH study finds found out that the abundance of marine life is actually increasing, with fish species moving into the kept a 15-20km distance from area that hadn’t been there the construction site. previously, such as mackerel and Researchers found out that the the longspined bullhead. mammals will return to the area The rotation of the blades seems faster if they were driven away by to drive away birds, and sonar signals before piling began, developers do not have to worry and if effective sound protection about fixed migration routes — measures were in place during there are none in the North Sea, construction. the researchers discovered, as the Following the findings, the creatures are not bound to rest BSH has stipulated that sound areas or specific thermal levels must not exceed 160 conditions. There was also no decibels within 750 metres of impact on marine mammals construction sites. The BSH BREATHING MORE EASILY: during operation. During the expects this regulation to be The protected installation process, however, the introduced as a guideline across harbour porpoise endangered harbour porpoise the EU.

ECN gears up for offshore tests of wake control system

DARIUS SNIECKUS showed the technology, which and maintenance costs,” says few degrees, the turbulence is would help a wind farm ECN’s Haico van der Heijden. deflected, reducing loads and The Energy Research Centre developer optimally position The production capacity of increasing output from of the Netherlands (ECN) is turbines to smooth the wake turbines downwind of the front downwind turbines. gearing up for offshore tests of a effects of turbulence, could also row on a development can drop “The next step is a large wind new active wake control system be expected to trim maintenance by 50%, with wake-generated farm, preferably offshore. That is that has been shown to boost costs by 3%. turbulence increasing loads and not a place where you want to output from land-based wind “This is a solution to driving up maintenance costs. experiment, which is why we turbines by as much as 5%. substantially increase the ECN found that by changing have waited until the technique Trials on a quintet of Nordex production of the whole wind the pitch angle and/or the yaw had proven itself,” says Van der

| Florian Graner | DOTI Photography 2.5MW machines at ECN farm, while also reducing the load angle of the front turbine by a Heijden.

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EWEA012_20112013 1 20.11.2013 14:44:11 Holmenkollen | 2014

Recharge, the global source for information on the renewable-energy industry, is inviting expressions of interest for its annual Thought Leaders summit, the first of which will take place on 9 January 2014.

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Involvement in the event will give sponsors the opportunity to engage with a unique group of high level opinion makers that are shaping debate and the future direction of the industry. Members of the Thought Leaders Club include the CEOs of developers, utilities and equipment suppliers, as well as policy makers, industry bodies and investors. The invited participants have been chosen on the basis of their ability to bring creative ideas to the table and engage with the latest trends.

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The 100-year-old Holmenkollen Park Hotel Rica has been the scene of international peace talks and is located next to Oslo’s Holmenkolbakken ski jump and the Norwegian Royal Lodge. Featuring a rich architectural heritage and modern conference facilities, the hotel will be an ideal environment for top renewables professionals and investors to consider the challenges of the year ahead.

For further information regarding our limited sponsorship packages on o er for this unique event, please contact Commercial Director Angelo Iannelli on +47 51 93 97 82 or email [email protected] RECHARGE

REC013_20112013 1 20.11.2013 12:16:52 YEARS ON Heading back to the capital of wind energy COPENHAGEN

A decade after the EWEA OFFSHORE event took place in Copenhagen, we’re heading back to the capital of wind energy. Generate bottom-line results for your marketing investment and get exposure to international and domestic markets at this upcoming event. www.ewea.org/offshore2015

SUPPORTED BY: ORGANISED BY:

REC014_20112013 1 20.11.2013 12:17:04 EWEA OFFSHORE 2013

BETTER BY DESIGN: Hitachi turbines at a Japanese wind farm. Hitachi has become the 500th licensee of the Bladed technology package; below: David Witcher

was licensed for the 500th time designs by modelling wind and recently through a contract with wave loads together. Japanese turbine maker Hitachi. “Historically, modelling [of How Bladed can “What Bladed allows you to do offshore turbines] has involved is to optimise every aspect of a calculating your wind loads on turbine design for the real-world the turbine and then taking conditions it will operate in, and those figures and adding them to slice through that is where the money-saving the calculations for the wave comes in. Bladed is as close to loading on the support structure the real world as you can get — whether fixed or floating — to without building your turbine,” come up with your design,” says offshore CoE Witcher adds. Witcher. CoE can be cut using the “This coupling together leads to More accurate modelling of turbines software — a Windows- overly conservative designs. interfaced suite rooted in Bladed allows us to model it all could lower capital spend and prevent multi-body structural dynamics — wind and wave loads, over-design, reports Darius Snieckus — to do everything from shaving electrical systems, control off “excess” steel in a jacket he offshore wind industry’s concept to Bladed is as close to the real campaign to drive down precisely world as you can get without Tcapital spending to lower balancing loads its cost of energy (CoE) could be against building your turbine boosted by honing turbine performance from design and certification, turbine components. systems, foundations, soil according to consultancy DNV “Say you’re trying to do conditions — all in one go.” GL-Energy. something clever with your The market geography for More accurate turbine controller using algorithms to Bladed licensing is shifting modelling using the latest actively reduce the loads, rapidly, with the “half to two software tools is being examined, increase the damping and so on, thirds” accounted for by China to speed the prototyping of then Bladed would help you in recent years being replaced by higher-output machines by assess how good your controller “a healthy spread” encompassing cutting over-engineering, is by representing the reality of Japan, South Korea and Europe. particularly on offshore models. performance and loading on a Among the new features in “If you look back to the early wind turbine design,” Witcher Bladed V4.5, to be released next days of the industry, you would explains. year, is Lidar modelling, to factor just apply bigger safety factors to The latest version of Bladed, in data streams collected in the static, steady-state calculations, V4.4, expanded the reach of the field during operation. DNV which led to a lot of over-design,” engineering design tools unit, software to cover floating GL-Energy is also scoping out says David Witcher, head of the which includes the Bladed turbines, with the aim of clearing development of the software for

Bloomberg/Getty | DNV GL-Energy | Bloomberg/Getty Photography consultancy’s turbine software package. The software the way for “less conservative” “farm-wide” load modelling.

EWEA OFFSHORE 2013 | DAY THREE 15

EWEA015_20112013 1 20.11.2013 14:25:50 1

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Photos of the day 1) A delegate gets a massage at EWEA Offshore yesterday; 2) Recharge technology editor Darius Snieckus, right, entertains the speakers at the Thought Leaders VIP brunch yesterday morning: (from left) E.ON’s Mike Lewis, EWEA president Andrew Garrad, DNV GL’s Johan Sandberg and Siemens Wind Power chief technology officer Henrik Stiesdal; 3) Taking a turn on EWEA’s flight simulator; 4) Stephanie McGregor of ABB chairing the grids session alongside (from left) TenneT’s Jochen Jung, Jack Wattel of VSMC, Codan RSA’s Truels Kjer, and Alastair Dutton of the UK’s Crown Estate; 5) Jesper Andersen, chief executive of Mita-Teknik; 6) Erwin Visschedijk of Blix Consultancy with his wind farm aerial surveillance device

Photography | Jason Bickley | Erik Luntang | Jesus Quesada | EWEA 6

EWEA016_20112013 1 20.11.2013 19:56:20