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CSP plant

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Lointek’s technology has been selected for the turnkey supply of the integrated steam generation system and the oil-salt thermal storage system for DEWA IV, the world’s biggest thermosolar power plant that will start operating in 2022, in Dubai (United Arab Emirates).

The firm is in charge of the engineering, manufacture, installation and launch of the power island. This will take place in three phases: the first of 18 months, and the following two in consecutive 8-month periods. These systems are considered to be critical elements in the plant’s development and of high thermomechanical complexity in their design and implementation.

Record figures

The DEWA IV project entails an investment of $4 b and breaks a number of records. In terms of its capacity, it has a total power of 950 MW, of which 600 are from parabolic trough generation (three times the maximum capacity of existing facilities), 250 MW from photovoltaic generation and 100 MW from the central tower system. Another remarkable feature of the project is that it produces the cheapest known kWh, at a cost of 7.2 $ cents.

With regard to its dimensions, the solar park has a surface area of 3,750 hectares, in addition, the central tower is the tallest of all the solar plants built up to now, reaching a height of 260 metres.

DEWA IV (Dubai Electricity and Water Authority) is situated 50 km outside Dubai and forms part of the Dubai Clean Energy Strategy 2050, which sets a target for renewable energy of 7% of total energy production by 2020, 30% by 2030 and 75% by the middle of the century.

Global leadership

The award of this contract is a reinforcement of the company’s position of global leadership, with its market share of more than 70% of thermosolar power plants across the world, and a reaffirmation of its competitiveness. In this regard, LOINTEK particularly appreciates the acceptance of its proposed technology in the face of international competition and the positive assessment of its reliability.

The company has delivered around 1,000 heat exchangers in a decade, a figure ten times greater than the second company in the sector’s ranking. LOINTEK has supplied power systems to 55 thermosolar plants in ten countries across America, Europe, Africa and Asia, with a total renewable thermosolar electrical power generation capacity of 3,500 MW.

In 2018, LOINTEK also participated in thermosolar plants in South Africa and Morocco that were already fully operational and, currently, it is working on the testing phase of a plant in Israel and the installation of another in Kuwait.

Source: Lointek

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The engineering and technology group Sener and Acciona Industrial have achieved another relevant milestone initiating the salt melting process at the Kathu Solar Park Concentrated Solar Power (CSP) plant. The molten salt will be used to store heat from the solar field that can later be recovered to produce steam and generate electricity in the absence of solar radiation, extending the operational capacity of the plant after sunset and during cloudy weather.

Thanks to this molten salt storage system, that allows 4.5 hours of thermal energy storage, the Kathu Solar Park CSP Plant will supply clean energy to 179,000 homes. The plant uses SENERtrough®-2 collectors, a parabolic trough technology, specifically designed and patented by SENER, aimed at improving efficiency of the solar field. The significance of this technology – SENERtrough®-2 and molten salt storage system – is that the CSP plant will not only supply power during sunny periods, but as needed to satisfy the peak of demand, without the considerable expense of battery storage.

Siyabonga Mbanjwa, Sener Regional Managing Director in Southern Africa, commented: “The use of molten salt as thermal energy storage system will allow Kathu Solar Park to operate in a cost-effective manner, storing the generated energy from the sun, producing and dispatching electricity, in absence of solar radiation, to satisfy the peak of demand. At Sener, our aim is to provide the most innovative technology, being compliant with Health & Safety stringent standards, to ensure an outstanding performance and thermal stability for a reliable and sustained energy supply.

Roberto Felipe, Chief Operating Officer of Acciona Industrial, said: “This project is technologically cutting-edge, and the complexity of both engineering and construction is only comparable to large infrastructure projects. At ACCIONA, we are committed to the social and economic development of the regions where our projects are located, and the positive impact this plant is having in Kathu and the surrounding areas is a reason for us to continue executing these projects with these high quality standards.

Kathu Solar Park is one of the awarded projects in bid window 3.5 of the Renewable Energy Independent Power Producer Procurement Program (REIPPPP) led by the South African Department of Energy (DOE).

The joint venture between Sener and Acciona Industrial was appointed by the ENGIE led consortium to provide engineering, procurement and construction services for the project. Construction started on site in May 2016 and is due for completion within the next few months. Approximately 1,400 jobs are being created during the construction phase. It is estimated that the Kathu Solar Park will save six million tonnes of CO2 over 20 years and will further promote local economic development through the KSP trust and the Kelebogile Trust, which has invested significantly in the local community thus far thereby making a meaningful contribution to the community of the John Taolo Gaetsewe District Municipality.

Source: Sener

A consortium formed by Acciona and Abengoa has signed the contract to complete the construction of the Cerro Dominador concentrated solar power (CSP) plant in Chile. The consortium, led by AccionaIndustrial with a 51% stake, will be responsible for building the 110 MW CSP plant with Abengoa technology, making it the first in Latin America.

The CSP plant tower will join the 100 MW photovoltaic plant already in operation, built by Abengoa, which has been in commercial service since February 2018. It will be part of a renewable energy complex with a total capacity of 210 MW and the first to combine both technologies anywhere on the continent.

This project will be able to generate clean energy, manageable for 24 hours, with a 17.5 hour thermal storage capacity based on molten salts. The 146-hectare solar field has 10,600 heliostats that direct solar radiation to a receiver located at a height of 252 metres.

Work is expected to resume this month, with Cerro Dominador, a company owned by funds managed by EIG Global Energy Partners, securing project financing in May with a consortium of national and international banks, and with the Acciona Industrial and Abengoa consortium receiving the notice to proceed.

The Cerro Dominador complex is located in the town of María Elena, in the Atacama Desert, in the Region of Antofagasta, an area with one of the highest solar radiation indexes in the world. The CSP plant to be built by Acciona and Abengoa will produce clean energy and prevent the emission of 640,000 tonnes of CO2 into the atmosphere each year. The complex will prevent the emission of a total of 870,000 tonnes of carbon dioxide annually, and will supply clean energy through 15-year energy purchase agreements signed with distributors in 2014.

Construction of the Cerro Dominador CSP plant will make a significant contribution to the local economy, creating more than 1,000 jobs in the area during the construction peak, with priority given to residents from the region’s municipalities.

Cerro Dominador selected the Acciona Industrial and Abengoa consortium because of its proven experience of developing and executing solar thermal projects around the world.

Acciona has built 10 solar thermal power plants globally, with a total capacity of 624 MW. The 100 MW Kathu plant, in South Africa is currently under construction. Cerro Dominador is the fifth solar thermal power plant built by the company outside of Spain.

Abengoa will be the technology partner for the engineering and construction project, contributing its know-how in the construction of CSP plants, with over 30 years of experience developing and constructing plants with an installed power of 2.6 GW around the world, currently representing 38% of the global installed capacity. It is currently the technology partner for construction of phase IV of the Mohammed bin Rashid Al Maktoum Solar Park, owned by the Dubai Electricity and Water Authority (DEWA), the world’s largest solar complex, located in Dubai.

Source: Acciona

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Engineering and technology company Sener is putting into operation, on a multi-phase basis, the different components of the Noor Ouarzazate III CSP plant. This plant is the second CSP plant designed and built by Sener using its own central receiver tower and molten salt heat storage technology, and one of the first ones in the world to apply this configuration on a commercial scale.

Sener recently carried out the start up of the solar receiver, pointing the heliostats towards the receiver located on the top of the tower, at a height of 250 m, to pre-heat it to 320ºC.

Sener has also been responsible for the receiver technology design and construction, applying its know-how from the aeronautical sector. This 600+ MW high-powered receiver has been developed in collaboration with Moroccan companies and, once in operation, it will enable the plant to reach a gross production of 150 MW and 7.5 hours of heat storage. Similarly, Sener has fully developed another key element for this type of installation: the integrated control system of the receiver and solar field.
As a preliminary step in the receiver start-up, Sener has completed the functional tests in the solar field, comprising 7,400 heliostats HE54, designed and patented by the company. This model (the HE54) incorporates improvements such as a larger reflective surface (178.5 sqm compared to the 115.7 sqm of the Gemasolar heliostats) and a highly accurate tracking system known as ‘solar tracker’, which uses Sener space technology.

Once the receiver pre-heating tests currently underway are completed, the next step in the commissioning phase will be to circulate the molten salt throughout the receiver to heat them to the daily commercial operation temperature (550º C). This milestone will be accomplished in the coming weeks. The last phase will consist in generating steam using the heat captured from the mentioned molten salts.

Noor Ouarzazate III forms part of the Noor solar complex located in Morocco and managed by Masen, and the largest solar complex in the world. In this complex, Sener forms part of the turnkey building consortium for the Noor Ouarzazate I and Noor Ouarzazate II plants, both of which use SENERtrough® parabolic trough technology, and Noor Ouarzazate III, with additional advanced innovations than those applied in the pioneer plant Gemasolar located in Seville (Spain), in commercial operation since 2011, which was designed and built by Sener.

In the Noor Ouarzazate III thermal power plant, Sener is responsible for the plant’s conceptual and basic engineering, detail engineering and supplying equipment for the thermal storage system, engineering and construction of the solar field and the molten salt receiver, as well as the commissioning of the entire plant. The plant’s delivery to the client is planned for the last quarter of 2018.

Source: Sener

Cerro Dominador, a Chilean company owned by investment funds managed by EIG Global Energy Partners (“EIG”), announced today the signing of the financing for its Concentrated Solar Power plant (CSP) located in the Atacama desert, in Chile. This milestone will allow the company to finalize the construction of the first combined CSP and photovoltaic project in Latin America, with a total of 210 MW of capacity. The plant will supply clean, reliable energy to the national interconnected system in Chile, selling most of its power under 15-year power purchase agreements awarded at the end of 2014.

The $758 million financing has been subscribed by a group of international financial institutions and the contribution of local banks. Among the financial entities involved are: Natixis, Deutsche Bank, Société Générale, ABN AMRO, Santander, Commerzbank and BTG Pactual as well as other institutional investors in a tranche parallel to the bank financing. Other participants are expected to join the banking group in the coming weeks.

The Cerro Dominador project is located in Maria Elena, near Calama, in the Antofagasta Region, an area with one of the highest solar radiation in the world. The new plant will produce clean energy, replacing the expected emissions of 640,000 tons of CO2 per year, reaching -as an integrated project- a total of 870,000 tons of CO2 reduction per year.

The new construction phase will have an important contribution in terms of employment for the region, generating more than 1,000 jobs at the peak during the next two years.

Panorámica del campo solar de 330 ha. de la planta fotovoltaica, 2015
Panorámica del campo solar de 330 ha. de la planta fotovoltaica, 2015

The company has been advised throughout the financing process by Milbank, Tweed, Hadley and McCloy (International Counsel), Morales y Besa (Local Counsel), and Astris Finance (Financial Advisor). The completion of the plant construction will be carried out by a consortium formed world leading companies in solar technology. Cerro Dominador is a proud contributor of the Chile Energy Agenda, which has pursued to diversify the country’s matrix by increasing the use of renewable energy.

EIG took its control position and management oversight of the solar project at the end 2016. The first part of the Solar Project, with 62 MW of photovoltaic power started in October 2017, reaching the full 100 MW in February 2018.

Source: Cerro Dominador

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Sugimat makes progresses in its international expansion by developing an HTF boiler for Agua Prieta CSP plant in the state of Sonora, Mexico. It is one of the most important power plants in Latin America. Sugimat’s installation, is part of the combined cycle plant Agua Prieta II, a combined cycle with increased performance and operating in conjunction with a solar field. The plant is a pioneering project in the country promoted by Mexico’s state-owned Federal Electricity Commission (CFE).

The installation, which uses DowTherm A heat transfer fluids and is capable of working up to 390 ºC, is integrated into the solar field production block and has been designed, manufactured and commissioned on a turnkey basis by Sugimat. It is a 6 MW HTF boiler that increases the performance of the combined cycle by 10 points and uses a natural gas burner with low NOx emissions. The CSP plant has a solar field of parabolic trough collectors of 14 MW and a natural gas combined cycle capable of producing up to 464,4 MW. Both are interconnected and form the first hybrid concentration solar power plant in Mexico, which provides an installed generation capacity of 394 MW to the country’s National Electric System.

Thanks to the use of natural gas as fuel, this hi-tech Integrated Solar Combined Cycle – ISCC plant will avoid more than 208,000 tons of carbon dioxide per year will cease to be released into the atmosphere, reducing the environmental impact.

The location of the plant in the state of Sonora has been a strategic decision. It is integrated in the “sun belt” and covers the area with the best solar radiation in the country, which makes it ideal for the operation of thermo-solar power plants.

The project, made by Abengoa, is financed by the World Bank, which through the United Nations Development Program, Global Environmental Facility, has allocated 200 million dollars to promote  thermo-solar technology in four countries, one of which is Mexico.

Source. Sugimat

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The engineering and technology group SENER and ACCIONA Industrial have achieved the connection of the 100 Mw Concentrated Solar Power (CSP) plant to 132kV ESKOM Distribution line on 23 February 2018. Main and auxiliary transformers have been energized which represents a relevant milestone for power plant commissioning activities.

The Kathu Solar Park CSP Plant, which will supply clean energy to 179,000 homes (estimation of the South African Department of Energy DOE), is equipped with a molten salt storage system that allows 4.5 hours of thermal energy storage to extend the operational capacity of the plant after sunset and uses SENERtrough®-2 collectors, a parabolic trough technology, specifically designed and patented by SENER, aimed at improving efficiency of the plant.

Siyabonga Mbanjwa, SENER Regional Managing Director in Southern Africa, commented: “With this key milestone for the Kathu project, we reassure our commitment to tackling the South Africa’s need for a reliable and sustained energy supply and the improvement of the grid stability, and therefore, we have focused on deploying our patented Concentrated Solar Power to support clean energy generation.”

Roberto Felipe, Chief Operating Officer of ACCIONA Industrial, said: “This project milestone has only been achieved in time and with high quality standards thanks to the Joint Venture’s ability to develop this project in the South African market. We have focused on working with local entities and communities in the region, which is why we are executing Concentrated Solar Power Kathu with excellence.”

Kathu Solar Park is one of the awarded projects in the third round of the Renewable Energy Independent Power Producer Procurement Program (REIPPPP) led by the South African Department of Energy (DOE).

The joint venture between SENER and ACCIONA Industrial was appointed by the ENGIE led consortium to provide engineering, procurement and construction services for the project. Construction started on site in May 2016 and is due for completion in late 2018. Approximately 1,200 jobs are being created during the construction phase. It is estimated that the Kathu Solar Park will save six million tonnes of CO2 over 20 years and will further promote local economic development through the KSP trust and the Kelebogile Trust, which has invested significantly in the local community thus far thereby making a meaningful contribution to the community of the John Taolo Gaetsewe District Municipality situated in the Northern Cape.

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Aalborg CSP A/S in collaboration with Jiangsu Livo New Energy Technology Co., Ltd have been awarded a contract to supply the steam generation system for the 50MW Shenzen Jinfan CSP plant which is among the first 20 demonstration plants that China intends to build by the end of 2018. The facility is a flagship project with its exceptionally long 15-hours energy storage capability and a good example of how European design combined with local manufacturing can secure on-demand and cost-competitive renewable power generation in China.

The 50 MW Shenzen Jinfan CSP project is part of China’s five-year plan aiming to change the landscape of large-scale electricity production. In the first batch, China awarded 20 demonstration plants to produce 1GW power at RMB1.15/kWh feed-in-tariffs (FiT) if completed before the end of 2018. To reach low price levels, solar projects with large energy storage capabilities have been announced, among which the 50 MW Shenzen Jinfan CSP plant proves to be one of the most efficient ones due to its exceptionally long, 15-hours energy storage capability. This enables the facility to supply power for 24-hours straight in Aksay County.

Aalborg CSP together with its local manufacturing partner, Livo New Energy Technology have been selected to supply the boiler equipment capable of securing uninterrupted conversion of solar heat to superheated steam at 136 bara and 538°C. The SGS4 steam generation system intended for the Shenzen Jinfan project was specifically designed to meet emerging market expectations for cost-efficient and reliable electricity production when using molten salt – an essential criteria developing markets, such as China, demands to meet low price levels.

With the SGS4 steam generator technology, the Shenzen Jinfan CSP plant will benefit from award-winning operational features, such as natural circulation, leakage-free design, and fast-start-up time. These operational benefits translate into significant savings in terms of component CAPEX and OPEX as the plant will be able to produce more energy compared to an ordinary heat exchanger and reduce the need for certain auxiliary components, such as circulation pumps and different drain valves.

Besides the steam producing equipment, Aalborg CSP’s scope of supply also includes instruments, valves, heat tracing for the pressure vessels and all interconnecting piping. Production has already commenced in China and delivery of components is expected to be completed next summer so the facility can supply renewable power to the grid before the end of 2018.

Projects facts:

•Owner/end user of the plant: Shenzhen JinFan Power Co.,Ltd.
•Project name: Shenzhen Jinfan Aksay 50 MW molten salt Parabolic Trough Project
•Plant capacity: 50 MWe
•Technology type: Parabolic troughs with molten salt as heat transfer fluid in the receiver pipes
•Plant layout: 2.5 km2 solar field with 152 rows of parabolic troughs
•Maximum molten salt temperature: 548 ºC
•Plant location: Aksay, Gansu Province, People’s Republic of China
•Energy storage capacity: 12-15 hours/day
•Lifetime of the plant: 25 years
•Expected operational time: December 2018

Aalborg CSP supply facts:

•Client: Jiangsu Livo New Energy Technology Co., Ltd
•Supplied technology: SGS4 steam generation system
•Scope of supply: Two trains of SGS4 steam generators including instruments, valves, heat tracing for the pressure vessels and all interconnecting piping
•Steam temperature: 95 ºC
•Steam production: 22,3 kg/s
•Steam pressure: 136 bara
•Ramp-up rate: 10 ºC/min
•System warranty: 5-years no-leakage and 5-years no fouling warranty
•Expected delivery completion: June 2018

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The SENER engineering and technology group is part of a consortium delivering the turnkey construction of three thermosolar facilities: NOORo I (already in commercial operation), NOORo II and NOORo III, as well as being the supplier of all the technology. For NOORo II, SENER installed its SENERtrough®-2 technology – a high-precision system that is the second generation of collectors named as such, having been designed and patented in their entirety by the engineering and construction firm SENER.

The scope of the work performed by SENER in NOORo II encompasses the conceptual and basic engineering, the engineering and construction of the solar field, the detailed engineering of various systems including the heat transfer fluid (HTF) and thermal storage systems, and the supply of critical equipment needed for its operation. Following the start of the works in 2015, SENER took charge of assembling the collector loops in a premises located on-site at the complex in Ouarzazate (Morocco), which is the largest concentrated solar power (CSP) plant on the planet. Subsequent responsibilities included the installation of the solar field, made up of 20,400 collectors arranged in 425 loops, running over 270 km in length and providing a total reflective area of 1.8 million square meters, distributed over an area of 700 hectares.

 

The NOORo II plant has a nominal power of 200 MWe, making it the largest in the world using parabolic trough technology. NOORo II also has 7,2 hours of molten salt heat storage, enabling it to continue providing the grid with electricity despite the absence of solar radiation. The NOORo II plant will save over 170,000 tons of CO2 emissions, with clean and safe energy being supplied to around 160,000 homes.

Source: SENER

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Thermax and Frenell have been awarded by India’s state owned utility NTPC, to execute Asia’s first integrated solar thermal power plant at Dadri in Uttar Pradesh, India. The project involves the integration of a concentrated solar field into the Dadri coal fired power station.

The solar field will use Frenell’s proprietary concentrated solar power (CSP) technology which is based on flat mirror Fresnel collector principle. On a surface of 33,000 m2, the solar field will feed annually 14 GWh of solar thermal energy into the water-steam cycle of a 210 MW unit of the power station. The mirrors concentrate the sunlight on absorber tubes and heat the fluid up to 250°C which are the parameters required for the power station unit. The heat generated from the solar field will heat the feed water supplied to the steam generator, allowing for lower coal consumption and thereby reducing the emission of greenhouse gases.

 

In a competitive tender process among three international EPC companies, the Fresnel technology won out over parabolic trough and solar tower technology and the contract has been awarded to the consortium of Thermax and Frenell. Thermax will be acting as the EPC contractor to NTPC and is responsible for design, engineering, procurement and supply of the entire solar thermal plant and balance- of- plant equipment as well as for the integration of the solar field into the coal fired power station. Frenell will deliver its CSP technology as subcontractor and will execute the turnkey manufacturing and construction of the solar field.

This project is of high strategic importance for India as it introduces a new option for power generating companies to improve the efficiency of their coal fired power stations. This solution will also contribute to the national target of at least 3% solar share of total power generation by 2022.

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