Power & Energy Solutions

The premier renewable energy publication

PES introduces the C-bed Floating Hotels, a worldwide pioneer within offshore accommodation and project services, providing home from home comforts to offshore crew. C-bed believes that you deserve to be treated well when you work hard offshore and are away from your family. So, they have designed their ships to be almost better than home. Take a tour around C-bed’s specialised offshore vessel, Wind Innovation. Top/middle: Arriving at the floating hotel The fit for purpose permanent boat landing, with cranage facility, makes it easy and safe to get on board the vessel. Both for personnel and equipment. Bottom right: Or you can arrive by air… Top left: Welcome on board - here’s your room key Safely on board, you arrive at the reception, where the staff is ready to give you a warm welcome and keep track of everybody on board. They provide personal service 24 hours a day. Top right: A good night’s rest All 80 single cabins with en-suite bathroom, Wi-Fi internet, TV, desk and wardrobe ensures the guests are fully recharged before another day’s work. Middle: Walk-to-work By applying her DP2 capacity, Wind Innovation allows the offshore technicians direct access to their offshore workplace. The Uptime motion compensated gangway ensures swift transfers between ship and turbine foundation of personnel

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The renewables market, particularly wind, is a key sector for ALE. Building on experience in the power sector, we have used our knowledge and expertise to develop smarter solutions to the challenges created by the increasing heights of wind turbines and associated components. In relation to the on-shore wind enery market, ALE offers a bespoke Transport, Crane and Installation (TCI) package for the wind energy sector. The transportation phases of projects include route assessments, liaising with local authorities, providing specialist transportation equipment and facilitating the removal and replacement of any street furniture or structures that may obstruct the route. We own a fleet of specialised equipment that is specifically used for projects in this sector, such as ` blade trailers and low profile wind tower adapters. Our qualified electrical and mechanical installation teams have the knowledge and experience to provide the most efficient solution, on a project by project basis. We can also provide our clients with port handling services. This includes equipment inspection, damage assessment, storage facilities and loading or reloading of equipment to specialist transport. “We offer different types of cranes for the erection of wind turbine components. The LG1750 combines the benefits of a crawler crane, it is high

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Times have changed over the last 50 years in our industry. PES has had the pleasure to witness the ever improving quality, health, safety, environment (QHSE) implemented in company policies both on and offshore. Read on to find out what is happening at Glomar Offshore. In Glomar Offshore, as an owner and operator of 20 offshore support vessels, varying from, lower end of the market: guard vessels, to standby safety and Emergency Response and Rescue (ERRV), to high specification, subsea and offshore accommodation and access units, we deploy our fleet in both the Renewables and O&G industries on approximately a 50-50 ratio. Whilst these two sub segments, constituting the bulk of activities for the median Northern European ship owner, alongside dredging, salvage and governmental/institutional support, are considered quite distinct, this is far from reality. As such, the experience, QHSE record, skillset and technology used are the same. In our industry, it has to be in every company’s policy to prevent incidents in all activities carried out by the shore-based and shipboard personnel. This includes external personnel, subcontractors, as well as assets from third parties employed for a specific project. All companies should aim for a culture of commitment to safety, accountability and responsibility. Safe

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PES is delighted to bring you this latest advanced technology solution from ZF Wind Power. Over the last few years total wind turbine noise, which is mainly generated by the interaction of the wind and the wind turbine structure, has changed from being one of the properties of a wind turbine to a true differentiator between different wind turbine OEMs: the less noise the wind turbine generates, the more wind turbines can be placed on the same piece of land without violating the prevailing noise regulations. To achieve this, wind turbine OEMs are investigating among other things reducing overall noise levels by utilising optimised low noise blade design using e.g. serrations and improving controller strategies to include a wide variety of low noise modes. As the overall wind turbine noise is used to mask the noise coming from the mechanical components inside a wind turbine such as the generator and the gearbox, these noise sources also need to be optimised. The low noise blade designs, which are still being studied, have a direct impact on the overall wind turbine noise and thus require the mechanical noise to be reduced at the same pace. Next to that, the increased number of low

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Following the recent news, widely published in the industry and national press regarding a number of offshore wind farms, it seems that last year’s end of warranty inspections highlighted unprecedented amounts of offshore wind turbine, blade leading edge erosion, across several offshore wind farms in Europe. As the offshore wind industry enters the 2018 season blade repair campaigns, there is much to be considered. Early intervention is imperative for the quality and longevity of repairs. PES asked WTG to give us their view on this problem. It is an issue the industry has long been aware of and there are many initiatives in place looking to tackle the issue, such as the Offshore Renewable Energy (ORE) Catapult’s Blade Leading Edge Erosion Programme. Is this the Benchmark for future blade inspection and Integrity management during warranty? The following extract applies: If the expected lifetime of the surface coating is less than the lifetime of the blade, suitable inspection and maintenance intervals should be specified. Inspection and maintenance intervals shall be planned to provide adequate assurance that no significant deterioration in the condition of the installation may arise in the interval. The design should take into account the practicability of carrying out inspections of relevant components

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S&P Global Ratings rated its first onshore wind project in 2003. Since then, the renewable energy sector has undergone tremendous expansion. In the past decade alone, its compound annual growth rate has totalled 20%, thanks largely to the rising awareness of how using fossil fuels for power generation contributes to climate change. In Latin America in particular, where most renewable capacity comes from large hydro plants, onshore wind power sources are playing an increasingly important role. Oaxaca, a region in Mexico, for example, is considered one of the best regions worldwide for onshore wind farms. Its geological formation creates a corridor with consistently strong winds. So, the favourable wind resource, in combination with lower operation and maintenance cost, resulted in the upside of the credit outlook in the region. A global outlook Last year alone, onshore wind added approximately 53 gigawatts (GW) to the global capacity grid – bringing the total to around 540 GW. This is partly due to higher capacity factors and falling prices throughout the wind turbine supply chain, both of which are fostering onshore wind power’s rapid development. However, the sector’s growth isn’t without serious challenges. Wind resource availability has often failed to live up to the initial estimations made

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Achieving the correct bolt pretension is essential in assuring bolted joint integrity. Bolted joints are critical when ensuring the safe operation of wind turbines or other similar bolted connections. In this context, ultrasonic measurement has proven to be a very accurate and cost-effective solution when installing new bolts, as well as when evaluating existing bolts as part of determining the lifespan of wind turbines. R&D explains why to PES. In recent years, wind energy has become an important source of electricity production. As with any other technology, wind turbines have a limit to their time in functional operation. Currently, wind turbines are designed to be efficient and reliable for 20 years, with the possibility of extending beyond that. Continuous inspection of wind turbines is important as it can maximise the turbines’ life expectancy as well as minimise the risk of failure. In this context, the importance of correct bolt pretension is frequently underestimated, as incorrect installation can increase the risk of partial or total failure in wind turbines, since these bolts hold critical components together in the turbine as well as the tower. A fully tightened bolted joint can sustain millions of load cycles without any problems, whereas a joint consisting of untightened

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Although wind power remains broadly powerful as a renewable resource, opposition to wind farms is nothing new. For supporters, wind seems to offer something for everyone: carbon-free electricity, construction and maintenance jobs, and competitive utility rates. Still, wind farms are not accepted by all, and criticism of new wind installations around the world has effectively stalled development of some projects and defeated others. Wind power production in the United States continues to increase, especially when local governments seek to generate more tax revenue, but despite the many environmental benefits, when residents organize and fight a project, they often succeed. Rural residents across America are increasingly rejecting the advancement of wind energy projects in their communities when given a chance. Arguments from wind farm opponents often focus on concerns about disruption of landscapes, noise, aesthetics, reduced property values, and bat and bird mortality. In rural states like Ohio and Minnesota, residents fear that large-scale wind farms will turn rural communities into industrial zones. To shift residents’ views on wind farms, they must be informed of the facts and many benefits of wind as a dominant energy source. South Africa has exceptionally promising conditions for wind power generation but has delayed wind power production,

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PES wanted to know more about how Peterson is applying a collaborative approach, together with transferring expertise and know-how to become a top player in offshore wind and renewables logistics. Sander G van Helvoort, Business Manager Wind & Renewables, Peterson was happy to help with this. The global energy industry is currently under-going a change in direction with leading innovators and companies across the globe working to speed up the transition towards clean and renewable energy sources. Access to sustainable and clean energy sources is essential to the goals set by the Agenda 2030 and the Paris Agreement on climate change. Not only does this lead the charge in sustainable energy, but renewables also contribute to a higher standard of living, as well as better health and education, and is crucial for the productive activities that can raise people out of poverty. With its origins rooted in the Netherlands, Peterson has long been inspired by the culture of its home country, and, as it moves towards renewable energy, paying particular attention to offshore wind power. The European offshore wind market is predicted to record remarkable gains over the coming six years, with the UK, Germany, Poland and the Netherlands all driven by the strict

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