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PV

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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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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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For the past few days people from across the solar industry were gathering at Intersolar Europe. Global solar markets have ups and downs, but this year the world’s leading annual solar exhibition are filled with optimism. Speaking at European Solar Development Seminar organized by Growatt, IHS Markit Senior Analyst Susanne von Aichberger said, “From our research and analysis, we believe European solar installations are on the rise. This is good news for the industry.

Overall, European Union is set to reach EU-wide renewable energy target though some member states fail to reach their own 2020 targets, according to Susanne. Encouraged by the solid growth of European solar markets, Growatt has been increasing its investments in the region, hiring more staff and establishing branch office in Rotterdam recently.

At the seminar Growatt Co-founder and Sales Director Frank Qiao unveiled a couple of its next generation PV solutions to the audience. Its latest product developments, MIN 2.5-6k TL-XH and MAX 50-80kTL3 impressed the audience a lot. “At first glance, you’ll find our new generation product models have got appealing designs. But that’s not all. Their powerful functions will make them more attractive”, said Qiao. “MIN has OLED display and touch button and customers will have a better user experience. Its touch button has a longer lifespan and can last over three million clicks. Moreover, it’s storage ready. We are seeing the trend in solar storage and though we have already offered one-stop storage solutions for both retrofitting and newly-built PV systems, our new residential inverter includes this storage ready feature that will help reduce the cost and prepare the system owners for the future of self-consumption and storage.

For commercial and industrial rooftop solar projects, Qiao strongly recommends MAX 50-80kTL3, “At this fair we are receiving a lot of positive feedback for MAX. Many clients think MAX has got many features that will suit their projects, such as 6 MPPTs, anti-PID, AFCI etc. What makes it more special is its quad-core architecture. With dual DSP, CPLD and ARM chips, its capability has been greatly enhanced to handle functions like surge protection, I-V curve scan, fault waveform record, one-click diagnosis and so on.

Growatt has been growing steadily in Europe for the past nine years and with offices established across Europe, new models added into the product lines and more staff joining their team, is looking to grow their sales substantially in coming years.

Source: Growatt

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Special report focusing on the PV market, published as a separate issue to the April 2019 edition of FuturENERGY for special distribution at InterSolar Europe, an event celebrated from 14 to 17 May in Munich, where FuturENERGY had an active presence as media partner. This Special Report will be also distributed at the following events: MIREC Week (Mexico, 20-23/05), ENERGYEAR Andina (Colombia, 29-30/05), InterSolar Summit Spain (Spain, 18/06), ENERGYEAR Mediterránea (Spain, 3-4/07), Exposolar Colombia 2019 (Colombia, 11-13/07) y LATAM Renovables (Uruguay, 22-23/07) where FuturENERGY has an active presence as media partner too.

This special report includes the following:

COVER STORY
GROWATT. Flexible PV and energy storage solutions for all market segments

BACK COVER STORY
LONGi Solar modules demonstrate their excellent performance during demanding testing under real conditions

PV
Bifacial trackers, the real deal
New inverters for the Spanish market
Backup power for a PV plant supplying 138,000 homes in Mexico
Sertao I, a Brazilian PV plant with a Spanish stamp, heads up the efficiency rankings
Self-consumption legislation positions the consumer at the centre of the energy transition
Taking e-mobility to the next level. Charging the electric vehicle with solar energy
First PPA between residential properties, thanks to the new self-consumption legislation

DOWNLOAD COMPLETE REPORT

The PV installations in Brazil increased drastically in recent years with 371.9 MW capacity added in 2018, which nearly triples the installations for the previous year. The rooftop sector accounts for a significant share of the installed PV systems. The strong growth has contributed to increasing investments by solar companies from home and abroad.

Growatt, a leading Chinese inverter manufacturer has set up its Brazil Service Center in Mogi das Cruzes to expand its global presence. “Growatt has shipped over 20,000 inverter solutions to Brazil since entering the market in 2016. The business has been growing at a fast pace and now it’s time for localization after three years of development.” said Lisa Zhang, Growatt marketing director. Its service center is staffed with four local service engineers at the moment. “With our service center established in Brazil, we can provide faster and better service for local customers.

Growatt focuses on providing residential, commercial and industrial inverter solutions. Its 15-22k three-phase inverters and 8-10.5k single-phase inverters have been quite a success in the market. “Our inverters are becoming increasingly popular in Brazil. And we are launching our next generation residential inverter MIN2.5-6kTL-X for the Brazilian market very soon. This is the powerful future solution for residential PV system.

Many customers are attracted by its design at first glance. It has OLED display and touch button, which can last over three million clicks. It’s about 35% lighter than common inverters of previous generation because we use light and flame-retardant aerospace grade materials. It has powerful smart functions as well. By connecting it to our Online Smart Service(OSS) platform, customers can monitor, manage and maintain installed systems remotely. It saves time and money.” This next generation residential inverter is expected to gain its INMETRO certification in June according to Zhang.

Zhang has high expectations for this coming new inverter model and business growth this year. “Brazil has great solar potential and the market will continue to grow. We will continue to increase our investments and improve our service in Brazil and South America. With our leading advantages in residential and C&I inverter solutions, our goal is to take 20% market share of the rooftop sector in Brazil.

Source: Growatt

For most people, their personal energy revolution begins with the installation of a PV system on the roof of their home. This allows them not only to cover their domestic energy needs, but also to make use of the entire spectrum of options offered by energy sector integration thanks to the intelligent solutions from Fronius Solar Energy. The ultimate goal is to power an entire household exclusively from self-generated solar energy, which can also be used to heat water and for e-mobility. This helps to increase the rate of self-sufficiency and to more efficiently utilise the PV system. When it comes to e-mobility in particular, it is important to have a suitable overall concept comprising a PV system, energy storage system, hot water generation and a wallbox – in other words, a domestic charging station for electric cars, bringing a new level of meaning to ‘solar power’.

A personal energy revolution involves exploiting the entire spectrum of energy sector integration. Optimum energy management enables the highest possible rate of self-sufficiency to be achieved with self-generated solar energy. This increases profitability and the rate of self-consumption while simultaneously reducing costs. Alongside electricity and heat, mobility is the third major sector that can be powered with electricity from a user’s own roof using solutions from Fronius.

If you own an electric car, you’ll want to power it with solar energy,” explains Martin Hackl, Global Director Solar Energy at Fronius. “But you’re often not at home when the electricity from your domestic PV system is available.” This is where Fronius comes in: the solar energy experts are taking e-mobility to the next level and are making it possible to charge an electric car in the afternoon or evening with the electricity stored throughout the day. “It’s about having an energy solution that guarantees an electric car really is fuelled with green electricity,” adds Hackl. “To achieve this, you need to get the entire package right.

Fuelling a car with green electricity

Owners of electric cars essentially have three ways of charging their vehicles. The easiest, yet most ineffective method, is to simply plug the car into the socket or wallbox when power is required and use the energy available at that moment. This often only enables the user to achieve a slight increase in self-consumption, as a large proportion of the electricity needed is drawn from the public grid.

To charge the electric car’s battery intelligently, a Fronius inverter with an integrated energy management function and a compatible wallbox (charging station for the home) is required alongside the PV system on the roof. The inverter informs the wallbox when there is surplus electricity available, which then charges the electric car. Self-consumption can typically be increased by a further 20% in this way.

Dynamic charge control (the car is charged with precisely the amount of surplus electricity that is available at the given time) and an additional Fronius battery raise the rate of self-consumption up to almost 100%, depending on the system size and consumption behaviour. With this method, the energy management system sends the surplus electricity that has been produced throughout the day to a Fronius Solar Battery for temporary storage until it is later needed to fuel the car with solar power.

This ingenious method enables users to really get the most out of e-mobility,” says Hackl. “If you also upgrade your system with a Fronius Ohmpilot, which draws on surplus electricity to generate hot water, you will have a solution that makes the most economic sense and achieves the highest level of self-sufficiency.

Source: Fronius

As the urgency to take bold climate action grows, new analysis by the International Renewable Energy Agency (IRENA) finds that scaling-up renewable energy combined with electrification could deliver more than three quarters of the energy-related emission reductions needed to meet global climate goals. According to the latest edition of IRENA’s Global Energy Transformation: A Roadmap to 2050, launched at the Berlin Energy Transition Dialogue, pathways to meet 86 per cent of global power demand with renewable energy exist. Electricity would cover half of the global final energy mix. Global power supply would more than double over this period, with the bulk of it generated from renewable energy, mostly solar PV and wind.

The race to secure a climate safe future has entered a decisive phase,” said IRENA Director-General Francesco La Camera. “Renewable energy is the most effective and readily-available solution for reversing the trend of rising CO2 emissions. A combination of renewable energy with a deeper electrification can achieve 75 per cent of the energy-related emissions reduction needed.

An accelerated energy transition in line with the Roadmap 2050 would also save the global economy up to USD 160 trillion cumulatively over the next 30 years in avoided health costs, energy subsidies and climate damages. Every dollar spent on energy transition would pay off up to seven times. The global economy would grow by 2.5 per cent in 2050. However, climate damages can lead to significant socio-economic losses.

The shift towards renewables makes economic sense,” added Mr. La Camera. “By mid-century, the global economy would be larger, and jobs created in the energy sector would boost global employment by 0.2 per cent. Policies to promote a just, fair and inclusive transition could maximise the benefits for different countries, regions and communities. This would also accelerate the achievement of affordable and universal energy access. The global energy transformation goes beyond a transformation of the energy sector. It is a transformation of our economies and societies.

But action is lagging, the report warns. While energy-related CO2 emissions continued to grow by over 1 per cent annually on average in the last five years, emissions would need to decline by 70 per cent below their current level by 2050 to meet global climate goals. This calls for a significant increase in national ambition and more aggressive renewable energy and climate targets.

IRENA’s roadmap recommends that national policy should focus on zero-carbon long-term strategies. It also highlights the need to boost and harness systemic innovation. This includes fostering smarter energy systems through digitalisation as well as the coupling of end-use sectors, particularly transport, and heating and cooling, via greater electrification, promoting decentralisation and designing flexible power grids.

The energy transformation is gaining momentum, but it must accelerate even faster,” concluded Mr. La Camera. “The UN’s 2030 Sustainable Development Agenda and the review of national climate pledges under the Paris Agreement are milestones for raising the level of ambition. Urgent action on the ground at all levels is vital, in particular unlocking the investments needed to further strengthen the momentum of this energy transformation. Speed and forward-looking leadership will be critical – the world in 2050 depends on the energy decisions we take today.

Source: IRENA

At the start of April, Growatt exhibited its latest residential inverter, Growatt MIN 2.5-6k TL-X and commercial & industrial inverter, Growatt MAX 50-80k in a series of global trade show events. Growatt engineers and representatives received delegates at Smart Energy Conference & Exhibition in Australia, International Green Energy Expo & Conference in South Korea, Solarex Istanbul in Turkey and the Solar Show in Vietnam.

The global solar market is expected to grow at double-digit rate this year. According to IHS Markit, solar installations would reach 129 GW. This is a great opportunity for us to grow our business and bring our reliable inverter solutions to the global solar market.” said Lisa Zhang, Growatt Marketing Director. As the NO.1 Chinese residential solar inverter supplier, Growatt has been exporting its inverter solutions since its foundation. With its product reliability and professional customer service, Growatt has earned reputation among the clients around the world.

With the development of technology and solar policies, the solar industry is changing and PV inverter brand is revolutionizing their solutions. “There are new developments in our products. We’ve launched MIN 2.5-6kTL-X for residential systems and MAX 50-80kTL3 for commercial and industrial solar. They are smart, capable, reliable and up-to-date. Clients are very interested in our new inverters.” Zhang introduced.

Growatt MIN 2.5-6kTL-X has an appealing design with OLED display and touch button. At first glance, customers are attracted by such compact and beautiful design. Compared with solar inverters of the ‘old’ generation, it’s about 35% lighter because it uses aerospace grade materials, light and flame-retardant. So it would be easier to carry and install. Growatt MAX 50-80kTL3 has got 6 MPPTs and quad-core chips, which will greatly increase its flexibility for configuration on irregular roofs and enhance its capability to handle functions like surge protection, I-V curve scan, fault waveform record, one-click diagnosis etc.

Source: Growatt

Ingeteam and BYD have tested and certified at their respective R&D laboratories the compatibility of BYD’s high voltage Battery-Box H 5.1 and 6.4, and Ingeteam’s INGECON® SUN STORAGE 1Play hybrid solar-plus-storage inverter.

The coupling of Ingeteam’s inverter and BYD’s batteries is a complete hybrid system to capture and maximize the use of the solar resource. The versatility of the Ingeteam hybrid inverter in combination with BYD’s HV battery, permits to operate in stand-alone mode, back-up (UPS) mode or self-consumption mode. Thus, on-grid systems can store the solar energy during the day to consume it at night without risk of a power outage in case of a grid blackout, prioritizing the maximum self-consumption ratio at the same time.

During the certification process, BYD implemented a new battery capacity calibration system to improve the measuring and control of the state of charge of the battery. This newest feature was also implemented and certified within the Ingeteam inverter.

BYD’s LiFePO4 high voltage battery, with its 5.1 kWh and 6.4 kWh of capacity -depending on the model-, has been conceived for residential and commercial use, storing the electric energy and optimizing the installation’s energy efficiency thanks to the stabilization of the power supplied.

For its part, the Ingeteam hybrid inverter makes it possible to connect a PV array and a battery bank to the same unit, thereby reducing the cost of the system as a whole. This is a 3 or 6 kW single-phase transformerless inverter, to address residential and commercial installations.

Source: Ingeteam

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Chinese state-owned developer CECEP has completed a 70 MW floating solar project – the largest in the world – at a former coal-mining area of Anhui Province, China, in collaboration with French floating solar specialist Ciel & Terre.

The project, spread across 13 separate islets on an area of 140 hectares, was completed in late 2018, with grid-connection, tests and commissioning carried out this month at the project site in the Lianghuai mining subsidence area, Yongqiao District, Suzhou City.

EPC services were provided by China Energy Conservation Solar Technology and the China Energy Engineering Group Shanxi Electric Power Design Institute. A brand new 18 km 110 V overhead line was also built for the grid connection of the plant, which is expected to generate up to 77,693MWh of electricity in its first year, equivalent to the power consumption of nearly 21,000 households.

While the complete facility in Anhui is said to currently be the largest floating PV plant on the same reservoir in the world, nearby, China-based firm Three Gorges New Energy has already partially connected a 150 MW floating PV project to the grid, which is likely to become the largest plant globally once fully commissioned.

Equipment

The CECEP system was built using Ciel & Terre’s Hydrelio floats, which are locally produced to minimize emissions, optimise logistics costs and offer local employment.

The project uses monocrystalline modules from Chinese manufacturer LONGi Solar, as confirmed by a C&T spokesperson to PV Tech. Central inverters have also been put on stilt platforms on the shoreline of the quarry lake so as not to interfere with neighbouring farm activity. Concrete poles support the electrical installation and 1,500 helical anchors were used for the project and buried at an 8-15 metre-depth to match the water body.

Source: LONGi Solar

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