Power & Energy Solutions

The premier renewable energy publication

Gerry Lalonde, CEO, Orenda Energy Solutions, tells PES how he feels wind energy could be exchanged from one location to another. This is certainly food for thought and could make a big difference to small turbine owners, or perspective owners with no space near their current location. One of the chief concerns facing the small/medium wind energy industry is a geographical one, based purely on supply and demand. Imagine a business located in the middle of an urban area that wishes to be self-sustaining with its own ‘green’ electricity supply. If the business is located in an area where there is little or no wind and local planning laws preclude them from siting a small turbine on the property, is there not a conversation to be had with Government, which leads to a relaxing of the rules whereby any business can buy and erect a turbine on a ‘wind-friendly’ landscape, in another part of the country and have access to the equivalent amount of generated energy by these turbines from the grid? Is this not a classic case of supply not being efficiently matched to demand? Current legislation prohibits an energy consumer based on the South Coast of England, to purchase a wind turbine

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PES brings you Offshore Project Support, your complete service provider in the offshore wind industry. Smarter cost reduction and a more efficient offshore wind industry? It’s possible. Offshore Project Support (OPS) from the Netherlands combines the knowledge, experience and equipment of four different offshore companies. Together, they are ‘the toolbox at sea’. A complete service for every stage in wind energy projects. Niels Noordeloos is OPS’s managing director. ‘Titles don’t really mean much to me. I’m a practical kind of guy who just happens to know exactly what’s going on in the offshore industry. I enjoy managing projects and like to come up with safe and well considered solutions. With OPS I can offer my clients the services they need.’ Niels Noordeloos has worked in the offshore industry for 16 years and has been working as a freelance project manager over the last couple of years. ‘First in the gas and oil industry, later on in the offshore wind industry. At one point I was wondering if we could reduce costs by combining different projects. I envisioned a chain of wind parks from the southern part of the North Sea up to northern part of the North Sea. One vessel could sail to

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As renewable energy adoption grows worldwide, major utilities increasingly rely on wind power to serve homes and businesses with emission-free, clean electricity. Because of this growing interest in cleaner energy sources, the wind industry is experiencing a period of significant growth worldwide, exceeding 500 gigawatts and employing more than 1.2 million people. This growth has increased focus on issues like the equipment’s sensitivity to extreme environmental factors, subsequent power interruptions and revenue loss, increased maintenance, and maintenance-related safety risks. To keep up with this growing demand, operators must continue to stay ahead of potential challenges. Like all power sources, wind turbines are vulnerable to harsh weather conditions and require fail-safe operating systems such as emergency pitch units, commonly referred to as EPUs, which help safely halt turbine operation. As a result, turbine operators and owners are increasingly depending on electrical-based pitch control systems to perform this function. Traditional EPU (emergency power unit) In periods of total power failure, the EPU is equipped with an emergency power supply to return the blades to a safe position and allow the turbine to shut down effectively. These systems have typically relied on batteries to perform this function. Because of batteries’ electrochemical nature, they are prone to

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As renewable energy adoption grows worldwide, major utilities increasingly rely on wind power to serve homes and businesses with emission-free, clean electricity. Because of this growing interest in cleaner energy sources, the wind industry is experiencing a period of significant growth worldwide, exceeding 500 gigawatts and employing more than 1.2 million people. This growth has increased focus on issues like the equipment’s sensitivity to extreme environmental factors, subsequent power interruptions and revenue loss, increased maintenance, and maintenance-related safety risks. To keep up with this growing demand, operators must continue to stay ahead of potential challenges. Like all power sources, wind turbines are vulnerable to harsh weather conditions and require fail-safe operating systems such as emergency pitch units, commonly referred to as EPUs, which help safely halt turbine operation. As a result, turbine operators and owners are increasingly depending on electrical-based pitch control systems to perform this function. Traditional EPU (emergency power unit) In periods of total power failure, the EPU is equipped with an emergency power supply to return the blades to a safe position and allow the turbine to shut down effectively. These systems have typically relied on batteries to perform this function. Because of batteries’ electrochemical nature, they are prone to

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I know what you are thinking, right now you may be considering installing an offshore windfarm and here I am telling you about the problems of getting rid of the thing again. But! The topic is relevant whether you are installing a windfarm, nearing an end to the operational life, or actually in the process of preparing the decommissioning of the windfarm. Why, you might ask, is this relevant, the removal of the wind turbines is actually the reverse operation of installing it or not? The answer is that this is actually not the case. And as usual the devil is in the detail. Here are the reasons. In the early years I was frequently asked to give a quote for how much it would cost to remove an offshore turbine, my answer was simple, the same plus inflation as it would cost to install it. This is partly the answer, however a significant number of costs will occur which we did not foresee when we were originally asked. Firstly, the sheer number of turbines, which have to be removed, will make a significant impact to the port where you have to unload them. For the Danish and German North Sea, Esbjerg seems a good bet.

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Ideol has been in the news these last few weeks because Floatgen, France’s first offshore wind turbine, has successfully reached two key milestones Bruno G. Geschier, Chief Sales and Marketing Officer, at Ideol, came in to PES to talk us through this ground breaking project. Beyond the completion of the floater construction and the September fitting of the transition piece and the wind turbine at quayside, there were two decisive and delicate operations scheduled this summer: the pre-lay of the mooring lines as well as the float-off, or separation, of the concrete structure from the floating barges on which it was built. With cost competitiveness being a key driver in this emblematic project, we set out to design an innovative mooring system using nylon ropes several years ago. This being a first-of-a-kind we also had to develop and optimize specific offshore installation methods to ensure smooth, safe and rapid offshore operations. Having a fully integrated team of engineers covering all phases of the project, from conception to completion, helped us to integrate such offshore installation constraints and specificities very early on in the design and engineering phase, limiting many unforeseen and often costly surprises down the line. It also helped us collaborate efficiently with

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Once again PES has all the inside information from the upcoming wind fairs. This time it’s HUSUM Wind and the Offshore WIND Conference, Amsterdam. This is a great opportunity to meet the new comers to our industry, see all the latest developments, catch up with regular contacts and make new ones. So reserve the dates and book your tickets – maybe we’ll see you at one of them. A fresh breeze in the German market HUSUM Wind Trade Fair and Congress 2017 takes place from September 12th to 15th 2017, in the heart of Schleswig-Holstein, the wind state. This is where the who’s who of the wind industry comes together to compare notes about important industry issues and the latest developments and product innovations in the German and world markets. It has been the industry’s most important trade fair for the German market for over 25 years. This year it will be particularly interesting. Around 18,000 trade visitors and 650 exhibitors are expected from Germany and the neighbouring countries. They will be showing their products and services along the entire value chain. This established meeting place attracts trade visitors and experts from all sectors of the industry. Part of the discussions this year will

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Construction of offshore wind farms has advanced rapidly over the last few years and is maturing into a market where subsidy funding is diminishing. Numerous companies joined in to develop the offshore wind market and are further developing their assets to provide services to this market. PES shares this insight in to one company’s continued search to improve tools and equipment. At Huisman we see this development of assets through the contracts we have received for the construction of several cranes, intended for the construction of wind farms. Part of the development of this maturing market has been the growth of the wind turbine’s output, through increasing the size of turbines and blades, resulting in higher turbine towers. This upscaling of size of the different components of an offshore wind turbine, results in the need for larger installation tools: i.e. larger cranes. Due to the larger components, installation procedures and the tools to perform these procedures are becoming more important in ensuring handling ease and safety during installation processes of offshore wind turbines. Part of our contribution to the wind installation market is our range of cranes, which are adaptable with a variety of components of various sizes. Some tools are foldable

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•   The newly repowered wind farms are expected to deliver up to 25% more annual energy production, boost reliability and efficiency Siemens Gamesa Renewable Energy (SGRE) has been selected by NextEra Energy Resources to repower two wind farms in Texas. The newly repowered wind farms are expected to deliver up to 25% more annual energy production, boost reliability and efficiency, and extend service life. The two wind farms currently feature Siemens SWT-2.3-93 model turbines. The repowering program will upgrade them to the SWT-2.3-108 model. Project completion is expected by year-end and the wind farms will remain operational during the repowering process. “We are very pleased to continue our work with NextEra Energy Resources. Through Siemens Gamesa’s repowering program, we’re making it possible to optimize our customers’ assets and extend their service life –maximizing the value of their investments–”, said Jacob Andersen, Head, Onshore, North America, Siemens Gamesa Renewable Energy. Harnessing its expertise in both turbine technology and turbine operation and maintenance services, SGRE has developed a comprehensive and customizable repowering program. The program offers solutions in all phases of a repowering project including siting guidance, financing, planning, construction, service and operation. SGRE further offers a turbine overhaul option designed to upgrade the electrical and electronic

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Savings of around EUR 45 million to be achieved by 2018 400–500 jobs to be cut Hamburg, 5 September 2017. The Nordex Group has adopted a cost-cutting programme to respond to the continuing decline in demand and the sharp change in market conditions in its core market Germany as well as in other European countries, as already announced before. In addition to planned savings in the cost of materials and other operating expenses, it also intends to lower its personnel expenses. Nordex wants to reduce these costs by a total of EUR 45 million in 2018. Of this, the cost of materials and other operating expenses will account for EUR 21 million and personnel costs for EUR 24 million. Against this backdrop, the company has now informed the employee representatives that it intends to reduce the number of jobs in Europe by 400 to 500 by the end of the current year. This primarily affects sites in Germany and, to a lesser extent, other European branches as well. This subject will be discussed openly and sensitively with the employee representatives. The aim is to achieve the necessary redundancies as socially acceptable as possible. The Group expects one-off expenses in a

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