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wind turbine

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In the UK, Deutsche Windtechnik started service for Senvion turbines.

The UK subsidiary of Deutsche Windtechnik is expanding its national portfolio by providing O&M for 5 wind farms operated by Innogy Renewables UK. Besides Siemens, AN Bonus and NEG Micon, the independent service provider now counts also Senvion wind turbines as part of its knowledge base in the UK, and hence follows the path of the other Deutsche Windtechnik units. The group serves more than 400 wind turbines of all Senvion-productions series, onshore as well as offshore.

 

New contracts enlarge service infrastructure in the UK

The new maintenance contracts in the UK cover a total of 40 Senvion wind turbines – for MM70, MM82 and MM92 – and run for three years each. The proximity of the wind farms gives Deutsche Windtechnik the opportunity to install cross-park service structures in the northern regions of England including a warehouse and local office. Deutsche Windtechnik Ltd. will employ additional service teams, engineers and supervisors with a broad expertise in Senvion technology, with the first teams already having been employed. With this reinforcement the total number of employees in the UK business unit reaches 100.

Knowledge transfer provides bases for high-quality Senvion service

Billy Stevenson, Managing Director of Deutsche Windtechnik Ltd., is convinced that this milestone will be further proof that the ISP is capable of delivering the highest level of service quality:”Within the Deutsche Windtechnik Group we cover Senvion wind turbines with a capacity of 590 MW already. We have a very close knowledge transfer with the Training Center and engineering department of Deutsche Windtechnik in Germany, so we guarantee a top level service quality starting with the first day of the term.” After winning the Innogy Supplier Award in the Quality Global category, Deutsche Windtechnik is prepared to underline the standard of high quality in its everyday core competencies.

Source: Deutsche Windtechnik

Acciona has created a hub in its El Romero Solar plant (Atacama, Chile) to test new photovoltaic technologies that will improve the efficiency and performance of solar energy facilities.
The hub will focus on the mechanical and energy capacity of double-sided crystalline, split-cell and thin-film cadmium telluride (CdTe) technologies, all of them in the development phase, with the intention of shaping PV energy’s evolution. The solar modules have been produced by JA Solar and First Solar, and a variety of solar trackers will be used, manufactured by STI Nordland and Soltec.

The innovation center, in which two of the three tracker zones have already been installed, will have a power generation facility with a total capacity of 492 kWp (180 kW rated) consisting of 1,280 modules in three series of trackers connected to nine inverters. These will be assisted by other equipment to measure and monitor parameters such as incident and reflected solar radiation, ambient temperature or the production temperature of each kind of module, among others.

Unlike conventional solar modules, which only have photovoltaic cells on one side, the double-sided modules have cells on both sides of the panel to capture reflected solar radiation and increase output per surface unit occupied.

In split-cell modules each cell is divided into two parts. This reduces energy losses and improves the durability of the panel.

Finally, the thin-film modules are made from semi-conductive materials as alternatives to conventional crystalline silicon –such as cadmium telluride- that reduce both manufacturing costs and their carbon footprint during their working life.

Advanced technologies

Advanced technologies in photovoltaic solar are one of the main strategic approaches that guide Acciona’s innovation activities in the field of clean energies. One of the most innovative projects to date is the hybridization of organic photovoltaic panels in a wind turbine tower to power a turbine in the Breña wind farm (Albacete, Spain).

El Romero Solar is one of the biggest photovoltaic plants owned and operated by Acciona, with a capacity of 246 MWp. Located in the Atacama Desert in Chile, an area with some of the highest levels of solar radiation in the world, it produces energy equivalent to the consumption of around 240,000 Chilean households. Part of its capacity will be used to supply Google’s data center in the country.

Sulzer Schmid, a Swiss company pioneering UAV technology for rotor blade inspections, and NNAISENSE, an artificial intelligence specialist, have partnered to develop an artificial intelligence engine to automatically detect rotor blade damages on wind turbine. This leapfrog technology is expected to bring the twin benefits of improving the productivity and consistency of blade inspection processes.

With this new development effort, the two partners are aiming to build the industry’s most powerful artificial intelligence engine able to recognize damages based on inspection image material. The initial version will be able to flag all areas of concern on any given damaged blade. Ensuing upgrades will add other capabilities such as the ability to establish damage categories and severity levels.

The autonomously flying drones of the 3DX™ Inspection Platform of Sulzer Schmid assure high-definition quality and consistent image acquisition time as well as 100% blade coverage while minimizing human errors and operational risks. The cutting-edge image assessment tools of the platform ensure detailed and efficient damage assessment. With the support of an AI-enabled inspection software, the review work of blade experts will be greatly facilitated. Instead of having to review the entire surface of the blades, they will simply need to focus on the pre-selected areas of concern. This technology progress will not only significantly boost the productivity of the reviewing teams but will also improve the quality of damage annotation processes.

Source: Sulzer Schmid

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The Nordex Group is further extending its product portfolio in the market segment of wind turbines with a nominal capacity of more than 5 MW. The N163/5.X wind turbine will be presented at the German Husum Wind Fair, which takes place from 10 – 13 September 2019.

Compared to the recently launched N149/5.X wind turbine, the N163/5.X shows its strengths particularly on projects with lower wind speeds. The nacelle, gearbox and all system components of the N163/5.X have been taken over from the N149/5.X. A new element is the single-piece rotor blade, with a length of nearly 80 m, based on the proven and tested glass fibre/carbon fibre differential construction concept of the N149, which Nordex has been using in serial production for its blades since 2011.

The rotor diameter has been increased by 14 m to a total of 163 m compared to that of the N149/5.X. This makes it one of the biggest rotors in the onshore segment. This larger rotor diameter results in a swept area of 20,867 m2 Compared to the N149/4.0-4.5, currently being produced in series, this means an additional yield of up to 20 percent for the new wind turbine.

The N163/5.X is designed for maximum flexibility and can be operated in different modes in the 5 MW range depending on site requirements and customer needs. This enables customers to individually configure the wind farm with regards to energy yield, turbine lifetime, rating and sound requirements, and thus adapt it ideally to the specific business model. The N163/5.X continues the successful approach of a flexible power range of the Delta4000 wind turbines N149/4.0-4.5 and N149/5.X.

The wind turbine will initially be offered with hub heights of between 118 and 164 m. The wind turbine options also include a cold climate version for operation in temperatures as low as -30°C. The start of the series production of the N163/5.X is scheduled for 2021.

Source: Nordex Group

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The Nordex Group has notched up another success in Spain: the Alfanar Group has commissioned the manufacturer to supply and install 22 wind turbines for two wind farms with a total of 67.2 MW. Both orders also include full service for a period of 20 years.

The two wind farms are to be built in the province of Albacete in Castilla-La Mancha, approx. 300 kilometres to the south-east of Madrid. The Barrax wind farm will include ten AW140/3000 wind turbines and three AW132/3300 wind turbines. For the Chinchilla wind farm, Nordex will provide eight AW140/3000 wind turbines and one AW132/3300 wind turbine.

The wind turbines will be installed on concrete towers with a hub height of 120 metres, with delivery scheduled for the second half of 2020.

Source: Nordex Group

WindEurope, Cefic (the European Chemical Industry Council) and EUCIA (the European Composites Industry Association) have created a cross-sector platform to advance novel approaches to the recycling of wind turbine blades.

In 2018 wind energy supplied 14% of the electricity in the EU with 130,000 wind turbines and this number will only grow in the coming decades. Wind turbines blades are made up of a composite material, which boosts the performance of wind energy by allowing lighter and longer blades.

In the next five years 12,000 wind turbines are expected to be decommissioned. Broadening the range of recycling options is critical for the industry’s development.

Wind energy is an increasingly important part of Europe’s energy mix. The first generation of wind turbines are now starting to come to the end of their operational life and be replaced by modern turbines. Recycling the old blades is a top priority, and teaming up with the chemical and composites industries will enable to do it the most effective way.

The chemical industry plays a decisive role in the transition to a circular economy by investing in the research and development of new materials, which make wind turbine blades more reliable, affordable and recyclable.

Learnings from wind turbine recycling will then be transferred to other markets to enhance the overall sustainability of composites.

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Nordex Group has presented the fourth wind turbine model in the Delta4000 series, the N155/4.5, at Windpower USA in Houston. The N155 utilizes the same proven mechanical architecture of the Delta4000 series but adds a longer glass fiber rotor and a different hub set-up to optimize performance for specific site conditions. The turbine has a rated capacity of 4.5 MW and a rotor diameter of 155 m.

This product is a logical extension of the Nordex Group’s product strategy to leverage common components while creating optimized derivatives to achieve the lowest cost of energy for specific markets. The standard technical platform of the Delta4000 series enables Nordex to continuously develop highly efficient solutions for a wide range of wind regimes and adapting the products to different, very particular market requirements.

The N155/4.5 is aimed at growth markets with medium wind conditions and without strict requirements on maximum noise levels or high levels of effective turbulence intensity. This could include locations around the globe but will fit optimally in much of the United States, Latin America, South Africa, and Southeast Asia.

The wind turbine will be initially launched with three tower configurations including a 108-m steel tower, 120-m concrete tower, and 164-m hybrid tower. Production of the N155/4.5 is due to start in late 2020.

Source: Nordex Group

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The Energy Division of Acciona has developed a pioneering solution at global level in the field of hybridization between wind and photovoltaic power. It consists of covering a wind turbine tower with flexible organic panels to produce energy for the internal electricity consumption of the turbine. The innovative project will allow the study of the performance of the organic panels -an emerging photovoltaic technology- and their application to improve wind turbine efficiency.

The system has been installed in one of the turbines of the Breña Wind Farm (Albacete, Spain), which ACCIONA owns and operates. The turbine is an AW77/1500 of Nordex-Acciona Windpower technology, mounted on an 80-metre-high steel tower (hub height).

Installed on the tower are 120 solar panels facing southeast-southwest to capture the maximum of the sun’s rays throughout the day. They are distributed at eight different heights, occupying around 50 metres of the tower’s surface area. The photovoltaic modules, with an overall capacity of 9.36 kWp, are of Heliatek technology (HeliaSol 308-5986 model). They are only 1 mm thick, and each one has a surface area of 5,986 x 308 mm.

In contrast to the conventional technology used in the manufacture of photovoltaic models based on silicon, these organic panels use carbon as raw material and are characterized by their structural flexibility, which makes them adaptable to very different surfaces. Other key features are lower maintenance costs, less energy consumption during manufacture, easier logistics and the complete recycling of the materials used, although their efficiency is still below that of silicon modules.

The hybridization project in Breña means the optimization of the use of space for renewable energy production and it will enable us to test the efficiency of organic photovoltaics, a technology that we believe has one of the best improvement curves in terms of technological efficiency. That is why we have decided to pilot it”, says Belén Linares, Energy Innovation Director in Acciona.

Optimizing generation

The immediate application of the Breña project is to produce part of the energy that the internal systems of the wind turbine need. When the turbine is running, some of the energy generated is used to power the auxiliary systems. In shutdown mode, certain systems need to continue functioning so they are fed from the grid, which means that the wind turbine is registering a net consumption of energy.

The new photovoltaic system with panels on the tower will be able to cover, completely or partially, the energy demand related to the operation of the wind turbine when there is solar radiation, or even -in a possible later phase of the project- when the sun is not shining. This would be done through a battery storage system, leading to an improvement in the net production sent to the grid.

The organic panels are connected to two inverters that convert DC into AC for later connection to the grid which supplies the electrical equipment of the wind turbine.

The entire system is monitored with a view to evaluating it under real conditions, both from the point of view of energy production and degradation of the solar modules. Conceptually, it is a very innovative design in relation to previous experiences in wind power-photovoltaic hybridization, based on panels installed on the ground.

The idea is part of a wide-ranging innovation project driven by Acciona to study a number of emerging photovoltaic technologies, with the aim of pioneering the adoption of more efficient solutions in each case and consolidating its leadership as a PV developer. The company currently has over 1,200 MWp in operation or under construction in different parts of the world.

Source: Acciona

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Following the launch of the EnVentus platform in January, including the V162-5.6 MW and V150-5.6 MW turbines, Vestas today introduced the V138-3.0 MW turbine at AWEA WINDPOWER in Houston, Texas. Based on the scalable EnVentus platform architecture, the V138-3.0 MW’s 138m rotor provides a large rotor-size-to-generator-rating ratio, strengthening Vestas’ portfolio of turbines through superior park level energy production, higher certainty in performance, and reduced levelised cost of energy.

The V138-3.0 MW is globally applicable but purposely designed to maximise performance under market specific constraint conditions. By combining the V138-3.0 MW turbine’s 138m rotor with an 83m tower, the new turbine offers the industry’s largest swept area under 152.4 m (500ft), a relevant height constraint in the United States. At the same time, the turbine’s leading sound power levels makes it highly suitable for low wind sites in sound sensitive markets such as France.

Chris Brown, President of Vestas’ sales and service division in the United States and Canada says: “The V138-3.0 MW underlines Vestas ability to continuously innovate and lead the industry in developing customisable and sustainable energy solutions that meet our customers’ needs. This turbine is a perfect match for the North American market where higher certainty in Annual Energy Production at park level will become increasingly important for our customers to secure project financing and ensure profitability in a post-PTC market”.

As wind energy continues to expand globally and increase its share of the energy mix, the energy market is transforming. EnVentus is designed to meet the challenges our customers are facing in this environment, including changing energy policy and grid requirements. Through increased standardisation of components while ensuring turbine optimisation, the EnVentus variants thus help efficiently ensure our customers’ competitiveness in a wide range of market conditions, including markets driven by auction and forward-selling.

Anders Vedel, Vestas Chief Technology Officer, says “With the introduction of the V138-3.0 MW, we take another step forward in versatility and scalability of functional systems, demonstrating modular product development’s huge potential and how it supports our vision to become the global leader in sustainable energy solutions. I’m proud that, by utilising many of the same components as the first two turbines, we can introduce the V138-3.0 MW to meet customer requirements while lowering the levelised cost of energy and optimising the value chain”.

With the introduction of the V138-3.0 MW, EnVentus now covers an unprecedented wide spectrum of turbine generator ratings and rotor sizes, underlining the scalability of EnVentus’ platform architecture. Prototype installation is expected by the second half of 2020, while serial production is scheduled for the first half of 2021.

Source: Vestas

Iberdrola has begun construction on the El Pradillo wind complex in Zaragoza, with an installed capacity of 23 MW. The project, developed in conjunction with Caja Rural de Navarra, represents an investment of 26 million euros and is expected to enter into service at the end of this year.
Located between the municipalities of Frescano, Borja and Agón in Zaragoza province, the wind farm comprises six 3.4-MW Siemens Gamesa G132 wind turbines and one 2.1-MW SG114 turbine.

 

The production generated by El Pradillo will provide clean energy to the equivalent of 10,500 homes/year and prevent the emission of 17,300 TCO2/year.

More investment to lead the energy transition in Spain

With El Pradillo, Iberdrola is strengthening its commitment to renewables in Aragon, where it operates more than 320 MW of wind and hydroelectric electricity production.

Their commitment is to lead the transition toward a fully decarbonised economy by promoting renewable energies and accelerating investment in Spain, where it intends to spend 8.000 M€ between 2018 and 2022.

Iberdrola is currently building new renewable projects (solar and wind) with a capacity of 700 MW and it has 2,500 MW under development and a portfolio in excess of 7,000 MW.

Source: Iberdrola

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