Power & Energy Solutions

The premier renewable energy publication

A PES exclusive from Steve Sawyer, GWEC Secretary General. This is his perspective on the options for a world using 100% renewable energy, based on research and years of experience in our industry. Ever since the oil shocks of the 1970s, and the early emergence of commercial wind turbines, solar hot water heaters, and the first solar PV panels, there has been speculation about what it would take to completely wean ourselves from fossil fuels. As far back as 1975 Danish physicist Bent Sørensen published a paper looking at a 100% renewable energy system for Denmark1. The visionary Dr. Amory Lovins came up with the term ‘soft energy path’ in 1976 to describe a future where energy efficiency and renewables gradually replace a centralized energy system based on fossil fuels and nuclear power. After the emergence of the threat of human-induced climate change in the late 1980s, the discussion got a bit more serious. Both solar and wind technologies had progressed somewhat during the intervening decade and a half, but were still expensive and small. The first fossil fuel free energy scenario was published by Greenpeace and the Stockholm Environmental Institute in 19932. But not even the most enthusiastic advocates of renewables would have

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Words: Steven Foong, Global Maritime This article will look at the marine operations standards and guidelines that are emerging; areas that need to be considered in putting in place such standards; and how it is also incumbent on the marine providers themselves to put the necessary mechanisms in place internally. There’s no doubt that offshore wind is on the increase in Europe, Asia and the United States. Bloomberg New Energy Finance, an energy research organization, predicts that the world’s offshore wind-generation capacity will quadruple by 2025. The size of wind turbines is also increasing at such a rate that turbines with a capacity of up to 15MW are likely to be installed in the near future, according to the Chief Executive of Renewable UK, the UK trade association. The European Wind Energy Association also estimates that between 20 GW and 40 GW of offshore wind energy capacity will be operating in the European Union by 2020. Yet, just as the industry is continuing to grow, so do the necessary marine standards need to improve to ensure safe and effective operations. Current standards & guidelines So what current marine operations standards and guidelines are being used? While such standards and guidelines in offshore wind were perhaps slow to take

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Words: Scott Starr, Firetrace International, Marketing Director Wind turbine fire protection: investing to protect the bottom line. Fire is the second leading cause of accidents in wind turbines after blade failure1, with the average overall cost of a wind turbine fire being around $4.5m2. Given that $112.5bn was ploughed in to wind power globally in 20163, wouldn’t it be prudent to invest a little more of that in fire suppression? When a fire occurs the typical action is simply to wait for it to burn out. This can cause significant damage leading to thousands of dollars of repair costs, plus revenue losses as a result of downtime. To illustrate, a single 2.5-3MW commercial scale wind turbine is valued at approximately $3-$4m4, with the value of the output averaging $2,8005 per day. It’s clear, therefore, that the financial impact of even a minor fire, which can still cause weeks of downtime, can be significant - the average total cost of a wind turbine fire is $4.5m6. Causes There are generally three main causes of wind turbine fires: mechanical failure, electrical malfunction and lightning strikes. A small fire can accelerate quickly in a nacelle that comprises highly flammable resin fiberglass. Internal insulation in the nacelle, which

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Words: Matthias Brandt, Board Director, Deutsche Windtechnik The global wind energy market has always been subject to constant change, but it has rarely changed as rapidly as it is right now. Political realities are evolving, and they are forcing the market to produce results based on one clear objective: absolute cost reduction. Increasing cost pressure is forcing market participants to take action In 2025, the first German offshore wind farms will be connected to the grid without the benefit of any subsidies whatsoever. In Spain, the remuneration of 4.3 cents for onshore wind is shaking up everything that was considered to be reliable up till now. The last onshore tender also put Germany at 4.45 cents. The continuous acquisitions within the industry are creating new structures. In order to maintain or even increase their competitiveness, the various market participants need to work together closely. This also applies to the heterogeneous market for maintenance. The European wind energy markets differ from each other in many respects. Economic conditions and national political frameworks directly affect and control wind energy. In Spain, for example, subsidisation has been withdrawn entirely. This means that the wind energy market conditions here are completely different than in Germany. In turn, the Spanish

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Words: Ignacio Serrada and Alfonso Hernández, members of Offshore and Modular Department By the end of October, the first shipment of transition pieces (TP) for the MERKUR offshore wind project had been completed. The brief was to take full responsibility for organising the transportation and associated engineering, to ship these components from the manufacturer’s premises to the hub port for the transfer of TPs to the installation vessel. COORDINADORA, in charge of the engineered transportation, is thrilled to share this stunning case study exclusively with PES. The challenge came from an established customer IDESA-WINDAR, the joint company in the DANIEL ALONSO Group, they were awarded the order to manufacturer 66 transition pieces for the Merkur Project. They were manufactured in their Aviles facilities and had to be delivered to GeoSea, part of the DEME Group, in Eemshaven Port who was the main contractor. The first task was to select the most suitable vessel to match the obvious competitive requirements and the technical reliability needed to carry this crucial cargo, especially with regards to the lifting capacity of ship’s cranes. Thus, COORDINADORA, an expert in the shipping sector for over 35 years, prepared a particular RFQ for the ship owners to bid for the necessary

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As the wind industry continues its unprecedented growth, over 8,000 participants are expected to gather this November for the WindEurope Conference & Exhibition 2017 in the Amsterdam RAI Exhibition and Convention Centre, November 28th to 30th 2017. PES brings you a taster of the exciting things on offer. Have you got your tickets? We’ll see you there.. This event, organised in partnership between WindEurope and The Netherlands Wind Energy Association (NWEA), will build on the tremendous momentum achieved in recent years by wind power. “Considerable industry efforts have been made to make renewable energy cheaper than fossil fuels”, says Event Ambassador and Vestas CEO Anders Runevad. “It’s now time that markets, infrastructure and policies reflect this reality.” The Amsterdam conference and exhibition will build on the wind industry’s emergence as a hotbed of innovation and unprecedented ambition, and will be the ideal occasion for industry insiders to expand their knowledge base, make the contacts they need, and solidify an industry-wide vision for the future of this rapidly expanding sector. Local impact & global leadership The event will have two interlocking areas of focus: a macroeconomic overview will demonstrate that wind is powering Europe’s transition from fossil fuels to clean energy, while a microeconomic focus

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Bjond’s key word is innovation and their engineers are experts with a passion for complexity. Jo van Montfort, Sr Consultant, Director at Bjond tells PES about the short comings in the offshore wind industry, with regards to corrosion and how they want to change this. He says key factors include collaboration across the industry to collect the necessary data and a change in the testing requirements. It’s an interesting read with the potential for real savings. Let’s look at the challenges facing the offshore industry when it comes to protecting a steel structure in this type of environment. The first thing to be aware of is formulated perfectly by John Craven: ‘All my students know how to respond to the question ‘What happens when you use land-based technology in the ocean?’ They learn from day one to answer in unison: ‘You die’1. We as experts would add to the following: The annual global impact of corrosion is estimated at $2.2 trillion and represents about 3% of the worlds’ GDP. The WCO (World Corrosion Organisation) concludes that 25% to 30% of annual corrosion costs could be saved, if optimum corrosion management practices were employed and knowledge put in to practice. This is exactly where Bjond is

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The power of the sun is immense. But capturing this power efficiently and turning it into sustainable energy is no easy task. Solar module manufacturers and project developers are therefore always on the lookout for new technologies and materials that amplify the power generated by solar systems. As a renowned materials supplier with a long track record and a strong scientific background, DSM offers several advanced solar solutions that significantly enhance the performance of solar modules and systems. PES meets up with Madelon Janssen, RT&D Director at DSM Advanced Solar, to talk about DSM’s contribution to the industry and some exciting new additions to its portfolio. PES: Could you briefly introduce DSM and how you currently serve the solar PV industry? Madelon Janssen: DSM is a globally operating science-based company that focuses on health, nutrition and materials. We have also long been active in the field of renewable energy, including biofuels and material applications for wind and solar energy. At DSM Advanced Solar, we focus on innovative materials that can be applied in the entire solar value chain. To do this, we challenge every aspect of module and system design to maximize output and returns. We’re currently a leading player in anti-reflective coatings,

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Innovative sensor technologies, advanced modelling and new business models are all corner stones in how ZF Wind Power is digitalizing the manufacturing business. For ZF Wind Power digitalization and the Internet of Things (IoT) is an integrated part of this transformation. For a long time, the wind power industry has been among the front-runners when it comes to connectivity of products and analyzing data in order to optimize products and processes. However, the challenges and benefits have mainly been left to OEMs and turbine owners, with limited feedback to component suppliers. As the leading transmission supplier in the wind industry, ZF Wind Power is now stepping up the ambition of data insights, taking a leading position on product risk commitments and launching ground-breaking sensing technology used to control speed and drivetrain torque. Thanks to digitalization, ZF connected gearboxes can automatically sense the best way to optimize energy generation and improve turbine economics for any wind site conditions. A new control strategy with the focus on drivetrain torque ZF Wind Power, as a business unit of ZF Friedrichshafen AG, has extensive experience of delivering transmissions across industries. More than a decade ago a paradigm shift in drivetrain design for automotive changed how gearboxes were

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Does a bottlenose dolphin change its ranging movement because of a wind turbine? Or a razorbill change its migration route? How do human beings change behaviours with an offshore wind farm nearby? PES brings you a pioneering scientific research programme from Vattenfall, which aims to answer these questions and more. Four projects have initially been selected to receive a share of the €3mn Scientific Research and Monitoring Fund which is the brainchild of Swedish energy company Vattenfall. The projects will be based at Vattenfall’s European Offshore Wind Deployment Centre (EOWDC) in Aberdeen Bay. Adam Ezzamel, Project Director for the EOWDC, said they felt such a programme represented an opportunity that was too good to miss. ‘These projects will be carried out in a real-time environment as part of the largest-scale offshore wind programme of its kind. Conducting this research at the EOWDC is an unmissable chance to gain hitherto unknown knowledge of the environmental effects of offshore wind developments. ‘Not only will this programme place Scotland at the forefront of research and development in the sector and reinforce its position as a renewable energy powerhouse, it will inform industry policy-making in Europe and beyond.’ The 11-turbine EOWDC is Scotland’s largest offshore wind test and

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