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solar trackers

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Soltec, leading manufacturer and supplier of single-axis solar trackers, has released part three of its white paper that sets out the results obtained from September 2018 to June 2019 at its Bifacial Tracker Evaluation Center (BiTEC) in Livermore, California.

BiTEC studied the bifacial gain of PV modules deployed in the two most widely-used solar tracker configurations in the market today: one-in-portrait (1P) and two-in portrait (2P). The results obtained confirm that Soltec’s SF7 bifacial tracker in 2P configuration achieves a bifacial gain 2.1% higher than trackers in 1P configuration.

The white paper also shows that bifacial modules mounted on SF7 solar trackers provide 16.2% more bifacial gain under high albedo conditions (around 58%) and 10.1% under medium albedo conditions (29%).

BiTEC analysed and evaluated different parameters over a period of nine months, enabling it to achieve maximum performance in any PV installation, as well as improving tracker design. The factors evaluated included ground conditions, tracker height, the distance between trackers and module temperature.

Soltec has now released the third part of its White Paper with the results of the last nine months obtained by BiTEC. In this report, BiTEC placed particular emphasis on the importance of albedo to achieve more satisfactory results in energy production, as well as the different ways of measuring it and the instruments required to measure PV plants. As a result, the analysis was able to demonstrate which soils are better for achieving the optimal performance of such installations.

Under seasonal albedo conditions (when the soil is left to lie fallow over each season), the measurements show that the albedo remains stable at around 19% until the rainy season in California, in late November 2018. From then on, grass growth reduced this value to 17.2%. Once the grass was cut in March, the seasonal albedo value increased again, reaching a value of 19.6%. All this data resulted in an overall seasonal albedo of 18.9% over the nine-month measurement period.

Bifacial technology is revolutionising the PV market and involves changes in the design and behaviour of the bifacial trackers. The full analysis of these factors can be seen in part three of Soltec’s White Paper.

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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.

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Nclave has designed a new single axis tracker with two rows designed to mitigate the dynamic and aero-elastic risks inherent in large trackers. With this new solar tracker the company has the largest portfolio of products in the photovoltaic industry: single axis tracker mono-row SP160 and single axis tracker multi-row SP1000, fixed structure and the new twin tracker SP240.

One of the main advantages of this tracker is the allowance to a better optimization of the ground (GCR) since it enables more power installation on a smaller surface. It should be noted its great adaptability when installed on terrains with high/changing slopes.

Its configuration in two rows eases the access for maintenance and cleaning works which lets it endorse both the advantages of multi-row and mono-row trackers. All this grants savings in installation, operation and maintenance costs; decrease of commercial components by more than 25% / Mw and a reduction in assembly time of up to 65% / Mw compared with competitors.

With more than 15 years of experience, 3.5 GW deployed and offices and production centers in five continents, Nclave, is a leading company in the development, design, manufacture, installation and maintenance of fixed tilt structures and solar trackers, including the design and execution of any foundation solution. Nclave offers solutions with the lowest installation costs on the one hand, and, during the life of the project, operation and maintenance.

Source: Nclave

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Soltec, leading manufacturer and supplier of single-axis solar trackers, is supplying and installing its Soltec SF7 Bifacial trackers at a 220 MW project that the Enel Group’s renewable company Enel Green Power is building in Tlaxcala, Mexico. The PV plant occupies 439 hectares. The installation includes 6,533 Soltec SF7 Bifacial solar trackers and 548,772 bifacial modules and will be able to generate around 600 GWh when at full capacity.

“With this project we continue to strengthen our position in the Mexican photovoltaic market, where we have more than 1.3 GW installed. In addition, being a plant with bifacial modules, we will produce more energy optimizing the space and decreasing the installation time”, explains Sergio Prado, Head of Sales in Mexico.

Soltec will be responsible for creating 200 of jobs during the installation and supply stage. Soltec and Enel Green Power are cooperating with trade unions and the local government to promote local employment.

The company has also participated in an initiative to donate wood to local communities near the project. During the installation, an average of three tons of wood are generated per day, which will be delivered according to the needs of each town.

SF7 Bifacial

The SF7 Bifacial solar tracker produces energy both on its front and rear side, as it captures sunlight reflected on the ground. According to BiTEC, bifacial modules mounted in SF7 Bifacial solar trackers provide 17% more Bifacial Gain under high albedo conditions (60%), and 11% under medium albedo conditions (30%).The use of this tracker in this solar plant will help to significantly increase production and reduce, in this way, the space occupied and the investment of the project.

The standard features of SF7 provide bifacial compatibility thanks to the higher mounting height, the shadow-free rear and wider aisles between the rows of trackers.

Source: Soltec

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Soltec is offering 9 places on its Solteach On-Site programme, covering the design, installation and maintenance of PV installations. Based in Molina de Segura (Murcia), the leading company in the manufacture and supply of single-axis solar trackers, is offering professionals in telecommunications, electronics and electricity the most comprehensive training programme in the renewables sector.

The registration period is now open and applications are accepted up until 10 September. The 115-hour course, which starts on 30 September and runs for one month, includes 35 hours of theory and 80 hours of practical training. The training will take place at the offices of FREMM, the Regional Federation of Metal Companies of Murcia.

Soltec will offer the top performing students on the course an extendable internship contract with the option of a permanent contract of employment at the company. The students selected for the internship will start working at one of Soltec’s newly-commissioned plants before joining the department and in a position that best suits their profile and the needs of the company.

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This programme sets out to give brightest professionals the opportunity to come into contact with and receive training from the renewables company of reference in Murcia that has demonstrated the best growth in recent years. The best students, whose profile meets the needs of the company, will have the chance to take up Soltec’s offer of a contract of employment.

“At Soltec, we are very committed to job creation and quality training and, as such, we would like to give the best professionals in the sector the opportunity to receive training in renewable energy thanks to this comprehensive programme dedicated to PV installations”, comments Raúl Morales, company CEO.

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ArcelorMittal Exosun, enterprise supplier of advanced solar tracking solutions for ground-mounted photovoltaic plants has successfully commissioned its trackers on Beryl Solar Plant located in New South Wales (NSW), Australia.

The 110.9MWp solar plant, built by Downer EDI Limited, is equipped with 8,607 Exotrack® HZ structures. Commissioning took place just 12 months after the contract was signed.
ArcelorMittal Exosun LCOE-friendly tracking technology significantly increases the plant’s energy yield and thereby contributes to providing clean and safe electricity to Australian households & public transportation. The majority of renewable electricity produced by Beryl is being used to meet the operational electricity needs of the Sydney Metro Northwest rail link.

Downer’s Executive General Manager for Renewables and Power Systems, Lena Parker said: “The project has been successful due to the collaborative efforts of all of our partners including ArcelorMittal Exosun.”

ArcelorMittal Exosun confirms it will be a major actor in the Australian solar market.

“Through this additional project in the country, our company consolidates its position in Australia’s fast-paced solar market” commented Antoine Gastineau, ArcelorMittal Exosun Business Development Director.

Source: ArcelorMittal Exosun

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Soltec, a leading company in the manufacture and supply of single-axis solar trackers, forecasts the sale of 3 GW for utility-scale solar plants this year that will close 2019 with a record of almost 10 GW and a turnover of some US$400m.

Since its foundation in 2004, this Spanish entity has significantly grown its sales year after year. Soltec invoiced almost US$200m in 2018, an amount that is expected to double in 2019, representing a growth of 121%.

Soltec has more than one hundred projects worldwide and is market leader in Brazil, Peru and Colombia. It is also continuing to consolidate its position in the solar power market with revolutionary products such as its SF7 solar tracker and the SP7 Bifacial whose design has been optimised to achieve a maximum yield from bifacial modules.

“This year to date, the trend in bifacial technology is the key to utility-scale PV projects. Eight out of every ten quote requests are for bifacial, confirming our company’s commitment to innovation and research in bifacial technology”, explains Eduardo de San Nicolás, product manager at Soltec.

With its strong commitment to innovation and the development of proprietary technologies, in 2018 Soltec inaugurated its Bifacial Tracker Evaluation Center (BiTEC), to study the performance of bifacial modules in different conditions including albedo, height, distance between modules and module temperature. The research also aims to establish the best tracker design for the implementation of bifacial modules.

With 15 years of experience in the sector and over 35 patents, Soltec is present across the five continents. The company already has offices in Argentina, Australia, Brazil, Chile, China, Denmark, Egypt, the US, India, Italy, Israel, Mexico and Peru. With a development-based business model, Soltec has become a European reference in the renewable energy sector while modelling its economic growth based on care for the environment.

The SOLTEC team

Soltec’s growth is linked to its workforce. The company current has a staff of around 1,500 personnel distributed across projects and subsidiaries worldwide. As part of its commitment to job creation and the search for talent, Soltec has recently launched the second edition of the Solteach study grant, a programme that sets out to give the best professionals the opportunity receive a first-hand training in renewables from one of the business references for the sector in Spain, which has achieved a spectacular growth in recent years.

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Soltec, leading manufacturer and supplier of single-axis solar trackers in Brazil, is supplying and installing its Soltec SF7 bifacial trackers at a 475 MW project that the Enel Group’s renewable company Enel Green Power is building in Sao Gonçalo, Brasil.

The power plant occupies 892.5 hectares. The installation includes 13,728 Soltec SF7 bifacial solar trackers and 1,235,520 bifacial modules of 385 Wp each.

“We have been working on projects in since 2015 and, as of today, we have projects for more than 2,145 GW. The project in Sao Gonçalo is the largest we have ever worked in the country, reinforcing our position as Brazil’s leading manufacturer and supplier for PV plants. In addition, thanks to the installation of bifacial trackers, we will be able to produce more energy optimizing the space and reducing the installation time”, explains Héctor Sánchez, Sales Manager Brazil.

Soltec will hire more than 300 new local people during the installation phase and around 15 permanent personnel during operation and maintenance.

In order to boost employability in the area, some agreements with the Local Administration were signed. The objective is training workers to take part in the installation of the plant.

Source: Soltec

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Soltec launches the second edition of its Solteach educational programme. The leading company in the manufacture and supply of solar trackers, based in Molina de Segura (Murcia), is offering 20 spaces free of charge to engineers from all over Spain to be taken up by the best academic transcripts on conclusion of their studies and by professionals who would like to specialise in renewables in the PV energy sector.

You can register as from Wednesday, 15 May with applications accepted up until Sunday, 2 June. The course involves an intensive 80-hour course covering two weeks. During the first week the classes will be taught at the ENAE School of Business Administration (Murcia), with the second week taking place at Soltec’s offices. The training course also includes a visit to one of the company’s PV plants.

This programme seeks to give the brightest professionals the opportunity to come into contact with and receive training from the renewables company of reference in Murcia that has demonstrated the best growth in recent years and enjoys the largest market share in Latin America and the US. In addition, the trainee will benefit from training from our experienced team of engineers, with the opportunity to enhance their knowledge by taking part in our projects and thereby foster their entry into the job market.

During the training course, the teachers will assess every student and those achieving the best results will be recruited for a three-month apprenticeship. After this period, selected candidates could join the company’s staff.

“Soltec is very committed to job creation and, thanks to this programme, we are looking to give an opportunity to the best professionals in the sector to receive training in renewable energy”, comments Raúl Morales, company CEO.

CLICK HERE more information and to apply for the course.

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The second edition of the event ‘Solar PV Plants in Spain: development, financing and the energy future’, organised by the Spanish PV Industry Association (UNEF) and single-axis solar tracker manufacturer, Soltec. The seminar took place last 20 February at the Hotel VP Design Plaza in Madrid.

It was inaugurated by Jesús Ferrero, deputy director for Renewable Energy and comprised four round table discussions which addressed the entire PV plant development process. They also discussed questions about the energy model and technological innovations.

“The PV industry is being called on to be the leading technology in order to achieve 74% from renewables from now to 2030. This commitment will not be a problem as the sector has already demonstrated that it is ready to invest”, affirmed José Donoso, the managing director of UNEF, in his opening speech.

Taking part were leading companies such as Iberdrola, Enel Green Power, EDP Renewables and Naturgy that offered the perspective of energy developers in Spain.
Bifacial technology dominated the debate during the technological round table with Canadian Solar, Power Electronics, Jinko Solar and Soltec.

The seminar concluded with a round table discussion on the financing of solar projects given by certification company DNV GL together with representatives from PwC, Bankia and Sabadell.
“Following the successful calls for entries in 2018 and 2019, UNEF and Soltec will undoubtedly promote another event geared towards solar power companies that are interested in developing projects in Spain, as well as fostering relationships between Spanish companies in the sector”, confirmed Raúl Morales, CEO of Soltec.

The Spanish PV Industry Association (UNEF) is the country’s solar PV power sector association. Comprising over 300 companies, entities and groups covering the entire value chain of the technology, it represents over 85% of the sector’s activity in Spain and in practice brings together producers, installers, engineering firms, manufacturers of primary materials, modules and components, distributors and consultants. UNEF moreover holds the presidency of and is co-secretary of FOTOPLAT, the Spanish PV technological platform which brings together universities, research centres and companies of reference in PV R&D in Spain.

Soltec’s global operations and a workforce of 750 people combine experience and innovation. The company has manufacturing centres in Argentina, Brazil, China and Spain; and offices in Australia, Chile, Denmark, the US, India, Israel, Italy, Mexico and Peru. Its solar tracking units are designed and tested to withstand extreme conditions, thereby making them the perfect solution for any type of climate. The single-axis PV trackers from Soltec are self-powering and require no additional PV module or grid connection.

Soltec’s SF7 single-axis tracker enables greater efficiency with lower installation costs. The SF7 solar tracker is the innovation of a company with 15 years of history as a PV specialist. Firmly committed to renewable energies and to the environment, Soltec supports product standardisation and the success of its clients.

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