Power & Energy Solutions

The premier renewable energy publication

The much-celebrated inauguration of Vattenfall’s European Offshore Wind Deployment Centre (EOWDC) was a day 15 years in the making for the energy industry. PES brings you a unique report on this exciting, innovative project, not least because of the enormous challenges which had to be overcome and the awareness, ethos and on-going research into the environmental effects. Originally conceived by Aberdeen Renewable Energy Group (AREG) back in 2003, the pioneering EOWDC is now generating clean energy off the coast of the Granite City. On September 7, Scotland’s First Minister, Nicola Sturgeon and Vattenfall’s CEO Magnus Hall inaugurated Scotland’s largest offshore wind test and demonstration facility. Over 100 business leaders and dignitaries attended the offshore celebration which gave them the opportunity to see the wind farm up close. Through a series of innovations and cutting-edge technologies, the 11-turbine EOWDC will serve as a test and demonstration facility for offshore wind and lead the drive towards generating competitive wind power globally. In what was a major feat of engineering, all foundations and turbines were installed in the North Sea over a period of just nine weeks. For the first time in the UK, steel suction bucket foundations were paired with the world’s most powerful turbines

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André Moura, Founder and CEO of Pro-Drone, Integrated Solutions for the Inspection of Energy Infrastructure, sat down with PES to tell us his perspective on drone inspections and how his company differs from other players in the market. Their experience and strategy means this company is here to stay and remain one step ahead of the game. PES: Welcome PES Wind magazine. Thanks for talking with us. Would you like to begin by explaining a little about the background of Pro-Drone and how you currently serve the wind industry? André Moura: Pro-Drone was born out of our desire to contribute to the efficiency of the wind energy sector by modernising the blade inspection procedures and empowering asset owners by providing them with high quality data. Our team has a very diverse background including robotics, aeronautical engineering, computer science and data management systems. Founded in 2015, we have carried out inspections in Europe and South America totalling over 1500 blades over the last 8 months. Our aim is to be established globally by the end of 2018. PES: We were wondering why Pro-Drone decided to focus on wind turbine inspection with the UAVs? AM: I was involved with offshore maintenance operations of wind energy assets, which

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As recent zero-subsidy projects show, the cost of wind energy is decreasing at an impressive rate. Nonetheless, production and maintenance costs remain high compared with rival sectors. One key route to decreasing overheads is the effective use of performance data. In many similar industries, data is used to streamline maintenance systems and reduce O&M costs through real-time management and predictive systems. However, in the wind industry turbine performance data is often unavailable, meaning owners and operators are not free to make use of data-based efficiency increases. By far the largest contributor to OPEX costs in the wind industry is O&M-related expenditure, the majority of which is caused by unplanned maintenance (see Figure 1). Reducing the expenses that result from unplanned maintenance will be key to further reducing the overall levelized cost of energy (LCoE). Within the industry, there is growing acceptance that the best way to reduce unplanned maintenance is to switch from a reactive approach to a more predictive regime, using data-based approaches to better anticipate and respond to maintenance issues. Many, if not all, owners and operators are already investing in predictive maintenance solutions, such as improved SCADA data analytics, condition monitoring systems (CMS), and oil monitoring. Such techniques require

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Not long to go until Offshore Energy 2018 on (22), 23 & 24 October, the eleventh edition will be taking place. The team is currently confirming the very last speakers and going over final details for the exhibition floor. With oil & gas, offshore wind and marine energy all assembling at this event - it creates the ideal place to display your products and services to the world. Based on its track record, OEEC expects to attract over 12,000 offshore professionals representing around 90 nationalities and over 600 key players from the offshore industry exhibiting at the show. This year’s theme, which doubles as a call-to-action is: Explore. Inspire. Transform. The theme will be reflected on the exhibition floor, but will also form a leading part of the extensive conference program. ‘From keynotes: Global Oil Event, Global Gas Event and Marine Energy Event,’ says OEEC Conference Manager, Femke Perlot-Hoogeveen, ‘to Offshore Wind Conference. Supplemented by nine Thematic Sessions ranging from the following topics ‘Exploration in a mature basin’ and ‘Offshore transport, installation and removal’ to ‘Decommissioning and re-use’. The conference program caters for all.’ A new dawn for offshore wind After years of steady growth for offshore wind, developments are set to follow

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While more than seven decades have now passed since the end of WWII, the remnants still remain in the North Sea today. It is common practice for Unexploded Ordnance (UXO) to be found during offshore projects, with potential to pose a threat to offshore work and vessels, particularly when laying pipelines and cables in the seabed. PES wanted to find out more about this new improved technology, which will save time and therefore money. Plus it will also be safer for the operators, in what can be a dangerous occupation. Clearance campaigns commenced after the war, which ended 73 years ago, but thousands of unexploded ordnances are still present. As the number of offshore marine projects continues to increase, demand for an efficient, cost-effective and risk-based approach for the mitigation of UXO is a priority for offshore teams. Survey work is an essential first step in UXO clearance, with survey specialists providing the tools to locate, identify and manage potential UXO. Now in its ninth decade and with more than 50 years’ subsea-specific experience, N-Sea offers a wide range of assurance and maintenance services to the oil and gas, renewable, and civil contracting industries, having truly evolved into a leading integrated subsea

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PES met up with Per-Olof Sverlinger, the recently appointed CEO at MMT. Consolidation, growth and innovation are very much in the forefront. He brings with him the necessary wealth of experience in consultancy, civil engineering and mine clearing to take this expanding company forward. PES: Hi P-O, it’s great to have this chance to speak with you. MMT is a regular contributor to PES and as you only joined MMT, as CEO, in June this year, it would be good if you could tell us something about yourself and your experience in the wind industry? Per-Olof Sverlinger: I have a background in management consulting and I have worked a lot with industrial equipment manufacturers, some of whom supply components to the offshore wind industry. I have also worked for clients in the offshore industry, but I believe I qualified for this position because of my experience in leading consulting operations. I also have a background as civil engineer and naval officer in the mine clearance operations. This has contributed to my understanding of the methods and conditions we are work with every day. PES: It would be interesting to know your strategic plans for the various industry segments MMT is involved in and

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With the continuous progression of the offshore wind industry we find more operators than ever searching for effective and efficient solutions to their operations. In the wind energy sector, modular units can be placed on a huge variety of vessels and barges to accommodate the manpower required during the commissioning phase of the projects. Accommodation modules are designed to interface with the control rooms, which enables great flexibility when it comes to last minute changes in projects and the varying requirements for staff. They host a range of benefits, as shown below. Fast and efficient With the palpable shift towards sustainable/renewable energy across the global industry, more organisations are opting for swift modifications on all types of fixed installations in order to keep-pace with the ongoing demand. In previous years, many of these organisations believed to have ample time to prepare for the next energy revolution, with long-term, extensive and costly new builds for their projects. However, we now find that in order to keep up, rapid conversions of existing vessel types, with the support of modular units is proving to be the way forward. As we know, a new build can be very expensive, with a long lead time to manufacture. When

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Offshore power cables are the Achilles heel of the offshore wind industry. Without them, no energy is delivered to the main land. Unfortunately, these cables are often damaged by external reasons, most by collision with anchors or fishing nets. The Belgian start-up company, Marlinks, has a solution and PES wanted to know more. Motivation for burying the cable The most effective way of protecting these cables is by burying them in the sea bottom. However, the sea bottom is not static, but a moving landscape. Therefore, it is crucial for a cable owner to know what the depth of burial (DoB) of the power cable is. Especially the range between 0 (uncovered cable) and 1m DoB (minimum DoB for power cables in many areas) is critical. As the current monitoring techniques are expensive and require the mobilization of survey vessels, Marlinks has developed a technique to continuously calculate the burial depth based on the temperature of the cable, measured with a DTS (Distributed temperature sensing) DTS measuring The DTS technology offers the possibility of measuring the ambient temperature at which fibre glass is exposed, with some notable advantages compared to traditional temperature measurements. The temperature measurements take place along the entire length of the

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Our climate is changing. Extreme weather events will become the new standard, temperatures are rising around the globe. Only a few degrees more already means immense consequences for ecosystems, economic sectors and human health across Europe and worldwide. The WWF analyzed that climate change causes around half of all animal and plant species, in the world’s most important natural regions, to be threatened in the medium term. The European Environmental Agency gets to the heart of the matter: ‘Essential for the generation of industrial, commercial and social wealth, energy also provides personal comfort and mobility. But its production and consumption place considerable pressures on the environment: greenhouse gas and air pollutant emissions, land use, waste generation and oil spills. These pressures contribute to climate change, damage natural ecosystems and the man-made environment, and have adverse effects on human health.’ Much of the observed and predicted changes can be directly linked to human greenhouse gas emissions. Greenhouse gases exert a significant influence on global warming. An actively promoted development of renewable energy is one of the main means to curb this dramatic change. Green electricity only works together ‘The negative impacts of climate change can only be limited by the reduction of emissions –

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Hardly any industry is growing as fast as the offshore-wind energy sector. The helicopter operator HTM Helicopter Travel Munich GmbH, has supported offshore alternative energy from the very beginning. Today, the company is one of the leading providers for helicopter hoist-missions to offshore wind turbines and their substation platforms. PES is delighted to bring you this exclusive. It’s early in the morning on the airfield of the East Frisian City of Emden (EDWE) and even at this time there is a hustle and bustle. Ground handlers are towing helicopters over the apron, refueling them and the first passengers are arriving at the check-in area. A strong and cold wind is blowing, a perfect day for flying, at least for the HTM crews. As soon as the wind turbines are out of service and the waves too high to transport the trouble shooting teams, via CTV (a special Crew Transfer Vessel), the hour of action sounds for the Emden based helicopter operator. Time is money and an unserviceable wind energy plant produces costs instead of earning profit (12.000-30.000 euros a day on windy days). Therefore, the top goal of HTM is to serve their customers timely, safely with utmost flexibility flexible. One day offshore Normally

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