Power & Energy Solutions

The premier renewable energy publication

Even though the foundation may seem like a minor detail in a wind power development project with a EUR 50–200 million price tag, slow progress in foundation design, production and assembly will postpone the day when the investment starts to generate profits. With that in mind, Peikko has created a holistic solution consisting of the design, manufacturing and installation of both gravity and rock foundations. Since 2014, Peikko has been the technology distributor for more than 1,200 foundations for Nordic wind power projects. Success has come with a simple insight that is easy to relate to, whether you are an investor or a contractor. ‘Any delay in the building process will postpone the day when the investment starts to generate profit,’ Kari Tuominen, Business Director of Peikko’s wind turbine foundation business, noted. ‘It’s not a small detail we are talking about, as the overall price tag of these projects may well reach 1 billion euros.’ In 2012, Peikko started the quest for faster wind power projects by fine-tuning its design, manufacturing and installation process with gravity foundations. The result was quickly noticed and the market share rose quickly. Currently, around 600 wind turbines are built annually in the Nordic countries. One third of

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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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Height Specialists was established in 1995. It is a specialist company that provides rope access inspection, maintenance and modifications for on and offshore inspection, maintenance services to clients, operating in various industrial sectors, as well as at promotions and public events. The business started as a one-man venture but today operates as fully a qualified IRATA, ISO 9001 and VCA-P company with over 75 employees working worldwide. ‘Height Specialists is an innovative and dynamic organisation that offers a quick and professional response to its clients’ questions,’ comments general manager, Henri Hoogenes. ‘Safety is always our first priority and as such, each project will endure a risk analysis and methodical planning before execution. Height Specialists only works with fully certified technicians, tools and materials.’ Indeed throughout its history the company has managed to adapt itself quickly, notably by providing abseiling and zip wire services at Rotterdam’s Euromast and later by supporting various Dutch television productions. During the early years it also turned its hand to work at height, using rope access and industrial climbing. Rope access is a method for working at heights utilising ropes, climbing harnesses and other materials to enable access to working locations in difficult and inaccessible situations. It is a method of

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In this, the third of four articles, we will examine the rope access, work positioning and enclosed space entry capabilities of ActSafe Powered winches. In wind energy, it is imperative that maintenance and construction personnel can reach their place of work and perform tasks as efficiently as possible to reduce work time and get tasks completed during available weather windows. Powered ascenders allow easy, quick and efficient access to all areas of a wind turbine that have previously proven difficult to access. Although many tasks can be performed by alternate access methods such as access platforms, most areas of a wind turbine are more easily reached using a powered winch. Rope access ActSafe Powered Ascenders have become the go to product for rope access technicians contracting to the wind energy industry. Powered Ascenders augment traditional rope access techniques to allow workers to reach areas of the wind turbine for blade inspection, repair and tower cleaning tasks. Once ropes are established, it is equally viable to work from ‘bottom up’ as ‘top down’ which doubles the efficiency and speed of work. The reduction of physical effort means more actual work can be performed and the risk of accidents reduced with a subsequent reduction in fatigue. Technicians

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Trojan brings power to the northern state of Choco, located in western Colombia, in the Municipality of Acandi, an area that is mainly jungle, along the Caribbean Sea bordering Panama. This region is in a remote area of the country that is not tied to an electrical grid. The Colombian government issued a mandate to expand the availability of electricity to the remote area of Acandi by building five solar hybrid installations, or microgrids. Acandi is mostly jungle, located on the Caribbean Sea bordering Panama, and its remoteness made it impossible to effectively connect to the country’s main electrical grid. These communities were forced to rely on diesel generators which only provided power for a few hours each day. The government decided to improve electricity service to the communities using state-of-the-art solar photovoltaic technology with energy storage powered by advanced deep-cycle batteries. One of the greatest incentives to installing these microgrids was to reduce the use of diesel fuel. Not only were the generators loud and emitted pollutants, but because the area can only be accessed by boat, the cost to transport fuel is prohibitively high. Also, when a generator broke down, the community would have to go without electricity until someone could

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AlterPower AG is a consultancy and development company in the renewable energy sector. The team consists of professionals with over 15 years’ expertise in the solar/PV industry from investment to implementation. In July they announced the signing of joint contract with its partners and local developers in emerging markets, for a pipeline of over 3 GW of high quality projects, in different stages of development. We have been working on these 3 GW of pipeline projects for over 18 months of intensive searching, screening and negotiations with partners. We are committed to helping the renewable energy sector to optimise its costs, to reduce LCOE and to increase the returns of investment. Putting together different partners and knowledgeable professionals, understanding and auditing geographical markets and specific projects in the renewable markets, has made it possible to reach this milestone of high quality projects with high expectations on IRR. With AlterPower’s local partners, the company follows the complete project development process from scratch, starting with securing the necessary permits, the land and after careful fulfilment of legal compliance, assuring the connection point to the grid and completing the different steps to ensure it’s a valuable and competitive project once it is built. The procurement team acquires the

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Renewable energy, primarily wind and solar, will represent the largest source of electricity growth over the next five years, driven by falling costs and aggressive expansion in emerging economies. Globally, progress continues to be strong with increasing annual installed capacity and investments. As solar power becomes more economical, wind systems have to become competitive to continue to grow. Consequently, development of new technologies which reduce turbine maintenance and life cycle costs, improve reliability and lower levelised cost of energy (LCoE) will result in wider adoption of wind power generating systems. LCoE is one of the utility industry’s primary metrics for the cost of electricity produced by a generator. Key inputs to calculating LCoE include capital costs, fuel costs, fixed and variable operations and maintenance (O&M) costs, financing costs, and an assumed utilization rate for each generator. Wind asset operators understand that O&M costs must be minimized to maximize energy generation. Thus, turbine reliability and high energy throughput are a critical measure of wind generation. Although all components in a wind turbine must work reliably, a turbine’s wind pitch system, whether electric or hydraulic, is a key component required for optimum blade pitch control under adverse wind conditions; to maintain turbine

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After a difficult period, the heavy lift industry is making changes and diversifying. PES finds out how one such company is meeting the challenge head on. All the know-how and expertise is already in place for what looks like the beginning of a heavy lift revival. HANSA HEAVY LIFT, which specialises in heavy lift, super heavy lift and project cargo, is stepping up its involvement in the offshore industry with a strong focus on transportation and installation (T&I) in the subsea oil and gas market, as well as the offshore wind farm sector. Wholly owned by the investment company Oaktree, the shipping line manages a fleet of 17 vessels and operates a dynamic positioning class 3 (DP3) construction vessel, which is ideally suited for offshore installation projects. With the heavy lift industry in a state of flux and still recovering from a period of overcapacity, HANSA HEAVY LIFT sees much potential for the future in the offshore T&I market. The carrier notes there was a steep drop in investment in the project and heavy lift market in 2016, and very little activity going forward for new projects.

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For the past 3 years, ALL NRG has combined the strengths of several leading Danish energy service providers to create a solid base for further development. PES went to find out how this has been achieved and why there is optimism in the air. Collecting industry know-how from its individual business segments, such as high voltage, mechanical wind, and inspection and advisory services has given ALL NRG the strength to develop their business in the right direction to respond to the latest market conditions. Until recently, the market consisted of smaller service providers offering fragmented solutions to manufacturers and developers in the wind-power industry. Now companies are gathering their forces as the market demands a turn towards large tender processes and full scope projects. In addition, the increasing demands for higher Health, Safety, Environment, and Quality (HSEQ) levels has made it difficult for smaller companies to compete. First mover Even though the ALL NRG name is still fairly new to the industry, the companies behind it are far from newcomers to the business. The integrated ALL NRG has a list of references with which it is hard to compete. Having worked on more than 90% of the world’s municipally sponsored offshore wind turbines, the

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Words: Peter Hearn, Operations Manager, ActSafe In this, second of four articles, we see how ActSafe Powered Ascenders can be used for material lifting in the wind energy industry. What is an ActSafe Portable Powered Winch? A Portable Powered Winch is a Li-ion battery or petrol powered lifting apparatus that is certified for lifting both loads, personnel and for lowering operations. The winches use readily available, 11mm kernmantle ropes so only rope length limits the lifting distances. The Working Load Limit is 200 and 250kg so these winches are a flexible tool that makes it possible to lift a wide variety of cargo and facilitate positioning operations. Nacelle In wind energy maintenance time is money, particularly when offshore, where weather windows are short. What happens when your crew arrive onsite, with a restricted time opportunity to get the turbine back online and they are unable to get tools and material into the turbine because the installed lifting equipment is not fit for purpose? An Actsafe portable battery powered winch, with a lifting capacity of 200Kg will ensure your maintenance teams can complete the task. This will reduce the risk of prolonged downtime. It also means it’s not necessary to have a permanent chain hoist fitted to

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