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electrical power

Last 2 November the Chilean government officially announced the Award of the National and International Public Tender to Supply Electrical Power and Capacity 2017/01, which offered 2,200 GWh/year of energy and will cover the electricity needs of regulated clients (homes and SMEs) of the National Electrical System over 20 years as from 2024.

The planning of this “National and International Public Tender to Supply Electrical Power and Capacity to cover the consumption of clients subject to price regulation (Supply Bid 2017/01)” started in December last year with the issue of the preliminary bidding terms to electricity distribution companies and continued with the publication of the definitive terms of the tender process in January this year.

24 national and foreign power companies submitted tenders under this auction, mainly for renewable energy. According to the CNE, around 20,700 GWh of energy was bid under this auction, almost 9 times the energy demand. Companies presented prices that started at 21.48 US$/MWh, with an average price of 32.5 US$/MWh finally awarded, incorporating new players into the electricity market most of which come from the renewable energy sector.

This supply bid is the third carried out by the government via its Tenders Law No. 20.805 and comprises seven supply blocks amounting to 1,700 GWh, with quarterly blocks totalling 500 GWh of energy, all effective as of 1 January, 2024 until 31 December, 2043.

This time around, 100% of the energy awarded was renewable, equivalent to some 600 MW of installed capacity in new renewables projects and which, in line with government sources, could attract around US$1 billion in investment in new infrastructure for the country.

Two auctions have already taken place under the current government. The first auction took place in October 2015 for 1,200 GWh/year, in which 30 tenders were submitted, all for renewable energy. This auction reached an average price of 79.3 US$/MWh, 40% lower than the 2013 auction that achieved 129 US$/MWh. In the second auction for 12,430 GWh/year, held in 2016, 84 tenders were received and an average price of 47.6 US$/MWh was awarded.

The price of the energy achieved in this tender is a landmark for the sector, given that it is the lowest price ever awarded in Chile. Thanks to these auctions, the price of energy for Chilean households has dropped by 75% in the last three years. The price of energy currently being paid by homes is 90 US$/MWh, the result of contracts entered into up until 2014. With this latest tender, it is hoped that new contracts will gradually bring down prices to around 50 US$/MWh, directly benefitting households.

The winners

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TSK has acquired Ingeteam’s power generation plant engineering and construction subsidiary. With this latest acquisition, TSK reinforces its current capacity to deliver electric power generation plants using both renewable and conventional sources, and acquires the expertise and references necessary to deliver turn-key generation plants using biomass.

Some examples of projects in which this company has participated are the solar thermal generation plants of Palma del Río I and II, both 50 MW of power and owned by Acciona. In addition, it is a leading company in the sector of electricity generation from biomass where it has participated in 11 projects.

 

The company is located in the Technological Park of Álava and has been owned by the Ingeteam Group since 2008, has a staff of more than 40 people with extensive experience and technical capacity. Currently it is involved in different bidding processes in Brazil, Belgium, France, UK and China for projects worth over 500 million euros.

Ingeteam and TSK have carried out projects jointly since 1985, mainly in electrical projects in steel plants of the ArcelorMittal company. Likewise Ingeteam regularly supplies TSK with different electrical equipment for solar photovoltaic plants.

Source: TSK

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MAN Diesel & Turbo is to deliver and install four MAN 18V32/40 gensets for a power plant of the Indonesian energy company PT Sumberdaya Sewatama (Sewatama). The power plant will supply one of the world’s largest gold mines, Martabe, with up to 24 MW of electric power. The four-stroke engines will eliminate an acute energy bottleneck and ensure a stable supply to cover the requirements of the mine in Batang Toru province in the north of the Indonesian island of Sumatra.

Sewatama is one of the leading energy service providers in Indonesia. The Martabe Gold Mine is managed and operated by Singapore based PT Agincourt Resources. With an area of 2,500 km², Martabe is roughly double the size of Los Angeles and has an annual extraction capacity of approximately 4.5 million tonnes of gold and silver ore.

 

The energy-intensive processes in extracting and treating the valuable raw materials require a reliable and permanent power supply. The state electricity supplier Perusahaan Listrik Negara (PLN) cannot guarantee this supply on account of the remote location in the Indonesian mountains and a patchy transport grid. The company is therefore setting store by an independent solution in the immediate vicinity of the location.

Indonesia has over 250 million inhabitants and is the largest economic region in south-east Asia. With an annual growth in gross domestic product of four to five per cent, power requirements are also rising. In 2014, the government therefore announced a comprehensive expansion programme of the national electricity network. The available power is planned to increase by 35 GW.

Source: MAN Diesel & Turbo

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Ingeteam has supplied nine INGEDRIVETM MV700 medium-voltage speed converters for this CSP plant. It is hoped that in April it will reach the goal of generating power under rated operating conditions.

Xina Solar One is a CSP power plant with an installed capacity of 100 MW. It uses cylindrical-parabolic collector technology and a thermal storage system which makes it possible to better utilise the solar energy available. This plant forms part of the largest solar complex in Sub-Saharan Africa and is expected to start operating commercially in 2017.

The speed converters play a vital role in regulating the plant’s main pumps. Ingeteam has supplied the equipment responsible for controlling the thermal medium pumps and the water supply pumps towards the steam generator. The converters are installed in prefabricated electrical rooms prepared for outdoor assembly. These are modular solutions assembled and tested at source, which drastically reduce work on site, consequently saving time and money.

The converter tests and commissioning started last autumn as part of the CSP plant’s commissioning work.

Source: Ingeteam

Acciona Energía has started construction work on the fifth wind farm under its ownership in Mexico: El Cortijo, a 168 MW facility located in the State of Tamaulipas, which will represent an investment of 221 million dollars. It is the first renewable energy project resulting from the electric power auctions organized in Mexico within the framework of the country’s Energy Reform.

Acciona won the first tender a total of 585.5 GWh of electric power and the corresponding clean energy certificates, which will be supplied by this wind farm.

 

El Cortijo, located 40 kilometers south of Reynosa, will have fifty-six AW 125/3000 turbines of Nordex/ACCIONA Windpower technology, each one with rated power of 3 MW, a rotor diameter of 125 meters and a 120-meter-high concrete tower.

The installation is expected to enter service in August 2018 and will generate the equivalent of the electricity consumption of around 350,000 Mexican homes, avoiding the emission of over 366,000 metric tons of CO2 to the atmosphere per year.

The construction and operation of El Cortijo and its associated activities will represent a contribution to Mexico’s GDP of around 232 million US dollars during its working life, according to figures from the socioeconomic impact study made for the company by the consultancy EY and presented last May.

In the next few months Acciona will begin construction work on the 339-MWp Puerto Libertad photovoltaic complex in Sonora. A part of it is related to the second wholesale electricity market auction held last September in which the company was awarded 478.3 GWh, and the rest corresponds to the PPA signed with a subsidiary of the Tuto Energy Group, a partner of ACCIONA in this solar project.
With this plant, which is expected to be completed in the second semester of 2018, Acciona Energía will reach 1,063 MW of total installed capacity under its ownership in Mexico – 68% in wind power and 32% in photovoltaic – and will produce electricity of renewable origin equivalent to the consumption of almost 2 million Mexican homes.

Source: Acciona Energía

According to the European Energy Efficiency Directive, 1.7 million Spanish homes with central heating systems should have installed water and heating meters or individual meters before 1 January 2017. A study carried out by the Universidad de Alcalá de Henares for AERCCA concludes that the installation of heat cost allocators and thermostatic valves could save the equivalent of eight months of electricity consumption in a typical home, in addition to reducing CO2 by an average of 61 tonnes per year.

The installation of heat cost allocators and thermostatic valves can save an average 24.7% on heating consumption in homes in multi-apartment buildings with central heating, according to the “Study on savings arising from individual heating metering in Spain”, undertaken by the Universidad de Alcalá for AERCCA, the Spanish Association of Heat Cost Allocators.

 

The average energy savings of the 1,349 homes analysed in Spain with collective or centralised heating installations, measured in absolute terms, amount to 7 GWh, the equivalent to 8 months electricity consumption by a typical home. Read more…

Article published in: FuturENERGY January-February 2017

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Four CHP plants from MTU Onsite Energy recently went into operation supplying electricity and cooling power for two new data centers belonging to South African telecommunications company Mobile Telephone Networks Limited (MTN) near Johannesburg. MTU Onsite Energy supplied a total of four plants generating cooling, heating and electric power for the project: one plant for a data center in Doornfontein and three others at a different location in Newlands.

At the heart of the plants is one 12V 4000 genset with 1,169 kWe capacity and three 16V 4000 gensets capable of 1,712 kWe each. This is the first time Series 4000 gas engines have gone into service in South Africa and so far, the units have been operated in limited service mode. Final completion is scheduled before the end of 2016. The plants will be maintained and serviced by personnel from MTU South Africa (Pty) Ltd, the local representatives of MTU Onsite Energy, Augsburg.

The distributed gas gensets will supply reliable, long-term power for MTN’s high-performance servers. Demand for electricity in South Africa regularly exceeds the available capacity. Supply reliability and economic efficiency are therefore major factors together with the ability of these plants to deliver ecologically sound energy, particularly in comparison to hard coal which is the country’s primary source of energy.

The plants also convert exhaust heat from the engines into cooling power to maintain proper working temperatures for the servers in South Africa’s hot climate. The compression performance of the turbochargers on the gas engines is also specially adapted to match the location of the data centers at an altitude of 1,700 meters. Gas is an extremely cost-effective alternative to diesel-powered gensets and, as a rule, distributed power generation provides a cheaper solution than energy available from public sources in South Africa. The gensets in this project operate on natural gas. Plans are also underway to utilize low-methane gas from coalmines and a genset with a specially adapted engine is likewise available for this application.

Source: MTU

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Abengoa, the international company that applies innovative technology solutions for sustainability in the energy and environment sectors, has been awarded the extension project of a transformer station by the Management Committee of Fideicomiso de Obras de Transporte de Argentina (FOTAE). The project is valued at 2 MUSD.

The company will be responsible for designing and assembling two complete 132 kV outgoing bays in the Chaco substation located in the northeast part of the country. The construction project is expected to last 12 months.

The company is currently developing other transmission and distribution projects in various provinces in Argentina totaling over 300km, such as the construction of the interconnection between Bahía Blanca and Vivoratá, in the province of Buenos Aires, or the construction of lines and the extension of the transformer station in the province of Entre Ríos.

Abengoa has been present in Argentina for over 45 years and has a long history in Latin America where, with projects such as these, contributes to a sustainable development of infrastructures and the transport of electric power. The company has been awarded contracts that total over 25,000 kilometers that total over 25,000 km worldwide over the last 10 years and almost 300 substations in the last decade.

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Yesterday, in La Muela (Aragon), Gamesa inaugurated a prototype of its offgrid system for the supply of power to remote areas without access to the grid, such as islands, mines and certain rural areas. The system is pioneering on account of its bundling of four sources of power – wind power, solar power, diesel-powered generation and energy storage batteries – into a solution with installed capacity of over 2 MW.

The inauguration ceremony, which took place at La Muela (Aragon), was attended by the industry ministry’s head of industry, Víctor Audera, and the mayor of La Muela, Adrián Tello. Gamesa was represented by its Chairman, Ignacio Martín, its Chief Corporate Officer, José Antonio Cortajarena, and its Director of Business Development, David Mesonero, among other executives.

Ignacio Martín, Chairman of Gamesa, sought to highlight the fact that: “development of this system represents another milestone in Gamesa’s quest to resolve energy needs in a sustainable manner. At present, more than 1.2 billion people lack access to electricity. Rural areas of India, South-east Asia, Africa, islands such as Haiti, Indonesia and the Philippines, and other remote corners of the plant, such as jungles and deserts, stand to benefit from these offgrid solutions which can generate cheaper and cleaner power”.

This offgrid prototype is the first to market which, with total installed capacity of over 2 MW, enables the ad-hoc combination of each of the technologies installed depending on specific project requirements with the ultimate goal of generating power yet minimising diesel consumption. The prototype also includes control software custom-developed by Gamesa to facilitate integration of the four technologies.

Specifically, the prototype inaugurated today combines a G52-850 kW wind turbine with 816 photovoltaic modules (245 kWp) and three 222-kW diesel generators (666 kW). The plan is to add a battery capable of storing 500 kWh / 500 kW by the summer. The prototype will generate enough power to meet the needs of 400 families.

“Gamesa’s entry into the offgrid sector represents a fresh technological challenge and a new niche opportunity: development of this class of technology is expected to reach 1,200 MW in the coming years. The advantage of our system is based on its flexibility: it can be tailored for customer needs by increasing, reducing or eliminating capacity in any of the technologies used”, explained David Mesonero.

In addition to the ability to customise the system, which leverages its knowledge of the wind value chain, Gamesa will also offer a turnkey offgrid solution, i.e., it will build, commission, operate and maintain offgrid facilities.

This foray into the offgrid segment falls under the scope of the company’s interest, as expressed in its 2015-2017 Business Plan, in exploring business opportunities which complement its traditional wind business – such as solar and offgrid power – and could add value from 2018.

Note that the company has some prior experience in this segment: back in 2007, it installed a facility in the Galapagos Islands (Ecuador) which combines three diesel generators and three wind turbines.

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The multinational OPDE, who specialise in development, investment and maintenance of photovoltaic farms, has obtained a green light for the construction of a new 5 MW PV plants in England. The project will produce the electricity equivalent to the consumption of 1,375 homes.

The solar farm is located in the county of Yorkshire. This success is a new milestone in OPDE’s commitment to strengthen and consolidate its presence in the photovoltaic market in the UK.

OPDE has now grown its development portfolio in the UK to 85 MWp, split between ten projects located mostly in southern England.

OPDE’s presence in the UK is part of the already consolidated internationalization strategy of the company. Consequently, OPDE accumulates the development and construction of 240MW in solar photovoltaic farms located in Italy (48.8 MW), UK (85 MW) and Spain (105 MW).

In addition, the company is currently active in other markets such as Mexico, United States and Chile, with over 800 MW under development.

COMEVAL