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91-638: The AD43C is a type of mainline 6 axle Co'Co' diesel locomotive designed by Alstom and used by the Islamic Republic of Iran Railways (RAI). It was in production from 2000. Delivery started in 2002. Alstom designated the vehicle with product code Prima DE 43 C AC . In 1998 GEC Alstom won an order valued at $ 125 million (later valued at €192 million) for the supply of 100 mixed use locomotives for Islamic Republic of Iran Railways . The first 20 units were to be manufactured at Alstom's factory in Belfort , France,

182-463: A $ 16.9 billion offer, comprising a $ 13.5 billion value plus $ 3.4 billion cash. On 5 May, GE offered to buy one-fourth of the shares in Alstom's Indian power and distribution companies – Alstom T&D India and Alstom India – at 261.25 and 382.20 rupees a share (value US$ 278 million and $ 111 million respectively) subject to its bid for Alstom SA being successful. On 5 May 2014,

273-560: A 2003 deal in Indonesia valued at $ 118 million in particular. On April 13, 2013, Alstom senior executive Frédéric Pierucci was arrested at the John F. Kennedy International Airport in New York . He was accused of willful blindness of his company's suspected corruption and was imprisoned in a high security facility for 14 months and denied release on bail until the week of Alstom's acquisition by

364-529: A 51% shareholding in Linke-Hofmann-Busch from Salzgitter AG . In 1995, the company acquired the remaining shares in the steam turbine manufacturer MAN Energie . In early 1998, GEC Alsthom acquired the electrical contractor Cegelec , renaming it Alstom Power Conversion . In 1998, GEC Alsthom bought Italian firm SASIB 's rail signalling subsidiary Sasib Railways , which included the former General Railway Signal (USA). In June 1998, GEC Alsthom

455-520: A consortium of Alstom ( Alstom Wind ), EDF , and DONG Energy was awarded three major French offshore wind farm contracts, the company initiated construction of factories at Cherbourg-en-Cotentin (turbine blades in association with LM Power , also wind turbine towers) and Saint-Nazaire (Nacelles and generators). Also in 2012, the company formed a joint venture with RusHydro to manufacture hydropower equipment for small and medium power hydropower plants. (up to about 100MW.) Late in 2012, to further

546-497: A controlled flow of energy while also functionally isolating the independent AC frequencies of each side. The benefits of synchronous zones include pooling of generation, resulting in lower generation costs; pooling of load, resulting in significant equalizing effects; common provisioning of reserves, resulting in cheaper primary and secondary reserve power costs; opening of the market, resulting in possibility of long-term contracts and short term power exchanges; and mutual assistance in

637-559: A design flaw inherited from the acquisition of ABB 's turbine business, in addition to losses in other business sectors. In 2014, General Electric (GE) announced that it reached a deal to purchase Alstom's power and grid divisions for US$ 17 billion (€12.4 billion). The deal came under heavy scrutiny from French regulators who saw the business as a strategically important domestic industry. To secure approval, GE agreed to form joint ventures with French companies in power generation and transmission, Alstom's heavy gas turbine business

728-465: A different region to ensure continuing, reliable power and diversify their loads. Interconnection also allows regions to have access to cheap bulk energy by receiving power from different sources. For example, one region may be producing cheap hydro power during high water seasons, but in low water seasons, another area may be producing cheaper power through wind, allowing both regions to access cheaper energy sources from one another during different times of

819-403: A further 10% stake from shareholder Bouygues and an option to form a rail transport joint venture. On 19 June, GE revised its bid, matching the same price with a lower cash transaction value; it also proposed forming a joint venture of their renewable, electric grid, steam turbine and nuclear power businesses. GE announced a memorandum of understanding between the two firms in the rail sector and

910-588: A greater product overlap and thus a greater risk to jobs, along with potential issues with EU competition regulators. Siemens' offer was characterised as "defensive", being skeptically received by investors and analysts. On 29 April, Reuters reported that Alstom's board had accepted a €10 billion bid by GE for its energy division; In a letter from GE executive Jeffrey R. Immelt to President François Hollande published in Les Echos , Immelt gave assurances about continued investment in Alstom's French activities,

1001-463: A joint venture of Alstom and Gibela began construction of a new 60,000 square metres (650,000 sq ft) train building factory in Dunnotar , outside of Johannesburg , South Africa . Initial orders for the factory included 580 X'Trapolis Mega passenger trains for Passenger Rail Agency of South Africa under a €4 billion contract that was awarded in 2013. In September 2016, Alstom announced it

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1092-435: A large scale within an electrical power grid . Electrical energy is stored during times when electricity is plentiful and inexpensive (especially from intermittent power sources such as renewable electricity from wind power , tidal power and solar power ) or when demand is low, and later power is generated when demand is high, and electricity prices tend to be higher. As of 2020 , the largest form of grid energy storage

1183-428: A local power grid, it will cause safety issue like burning out. Grids are designed to supply electricity to their customers at largely constant voltages. This has to be achieved with varying demand, variable reactive loads, and even nonlinear loads, with electricity provided by generators and distribution and transmission equipment that are not perfectly reliable. Often grids use tap changers on transformers near to

1274-521: A loss of generation capacity for customers, or excess demand. This will often cause the frequency to reduce, and the remaining generators will react and together attempt to stabilize above the minimum. If that is not possible then a number of scenarios can occur. A large failure in one part of the grid — unless quickly compensated for — can cause current to re-route itself to flow from the remaining generators to consumers over transmission lines of insufficient capacity, causing further failures. One downside to

1365-443: A passenger version with a 150 km/h (93 mph) top speed and a 20.5-tonne (20.2-long-ton; 22.6-short-ton) axle load, and two freight versions with a 110 km/h (68 mph) top speed and either a 20.5-or-23-tonne (20.2-or-22.6-long-ton; 22.6-or-25.4-short-ton) axle load., Only two prototypes of ballasted locomotives had been introduced;as, the ballasts limited the engine room space and higher center of gravity raised concerns,

1456-473: A proposal to merge with Siemens Mobility , the rolling stock division of German conglomerate Siemens ; this merger was promoted as the creation of "a new European champion in the rail industry". The combined rail business, which was to have been reportedly named Siemens Alstom and headquartered in Paris, would have $ 18 billion U.S. in revenue and employ 62,300 people in more than 60 countries. During November 2018,

1547-591: A reported cost of €54 million. As a consequence of an alignment agreement between Transmashholding and another entity, LocoTech-Service , Alstom's stake in the former decreased to 20% in August 2018. In 2011, Alstom and the Iraqi government signed a memorandum of understanding regarding the construction of a new high-speed rail line between Baghdad and Basra . In 2012, Alstom opened construction of factories at Sorel-Tracy , Quebec, Canada (passenger rail vehicles). After

1638-550: A variant of their TGV family specially designed for traversing the Channel Tunnel between the UK and France. Although collectively operated by Eurostar , the type was ordered by three different railway companies: 16 by SNCF , four by NMBS/SNCB , and 18 by British Rail , of which seven were shortened North of London sets. The first Class 373 set was completed at GEC Alstom's Belfort facility during 1992. In 1994, GEC Alsthom acquired

1729-720: A widely connected grid is thus the possibility of cascading failure and widespread power outage . A central authority is usually designated to facilitate communication and develop protocols to maintain a stable grid. For example, the North American Electric Reliability Corporation gained binding powers in the United States in 2006, and has advisory powers in the applicable parts of Canada and Mexico. The U.S. government has also designated National Interest Electric Transmission Corridors , where it believes transmission bottlenecks have developed. A brownout

1820-401: A €700 million deal), refocused on rail transport. Due to the acquisition, GE accrued $ 17.3bn of goodwill, consisting of Alstom's negative book value of $ 7.2bn at the time of acquisition and the $ 10.1bn purchase price. In October 2018, GE wrote-off $ 23bn from the value of its power industry division, largely attributed to the Alstom purchase. In November 2015, Alstom was awarded a contract by

1911-524: Is three-phase . Three phase, compared to single phase, can deliver much more power for a given amount of wire, since the neutral and ground wires are shared. Further, three-phase generators and motors are more efficient than their single-phase counterparts. However, for conventional conductors one of the main losses are resistive losses which are a square law on current, and depend on distance. High voltage AC transmission lines can lose 1-4% per hundred miles. However, high-voltage direct current can have half

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2002-511: Is a local grid that is usually part of the regional wide-area synchronous grid but which can disconnect and operate autonomously. It might do this in times when the main grid is affected by outages. This is known as islanding , and it might run indefinitely on its own resources. Compared to larger grids, microgrids typically use a lower voltage distribution network and distributed generators. Microgrids may not only be more resilient, but may be cheaper to implement in isolated areas. A design goal

2093-885: Is a wide-area transmission network that is intended to make possible the trade of high volumes of electricity across great distances. It is sometimes also referred to as a mega grid . Super grids can support a global energy transition by smoothing local fluctuations of wind energy and solar energy . In this context they are considered as a key technology to mitigate global warming . Super grids typically use High-voltage direct current (HVDC) to transmit electricity long distances. The latest generation of HVDC power lines can transmit energy with losses of only 1.6% per 1000 km. Electric utilities between regions are many times interconnected for improved economy and reliability. Electrical interconnectors allow for economies of scale, allowing energy to be purchased from large, efficient sources. Utilities can draw power from generator reserves from

2184-498: Is an intentional or unintentional drop in voltage in an electrical power supply system. Intentional brownouts are used for load reduction in an emergency. The reduction lasts for minutes or hours, as opposed to short-term voltage sag (or dip). The term brownout comes from the dimming experienced by incandescent lighting when the voltage sags. A voltage reduction may be an effect of disruption of an electrical grid, or may occasionally be imposed in an effort to reduce load and prevent

2275-497: Is ca. 11% of the World's population, had no access to grid electricity in 2017, down from 1.2 billion in 2010. Electrical grids can be prone to malicious intrusion or attack; thus, there is a need for electric grid security . Also as electric grids modernize and introduce computer technology, cyber threats start to become a security risk. Particular concerns relate to the more complex computer systems needed to manage grids. A microgrid

2366-422: Is dammed hydroelectricity , with both conventional hydroelectric generation as well as pumped storage hydroelectricity . Developments in battery storage have enabled commercially viable projects to store energy during peak production and release during peak demand, and for use when production unexpectedly falls giving time for slower responding resources to be brought online. Two alternatives to grid storage are

2457-417: Is simply rerouted while repairs are done. Because the power is often generated far from where it is consumed, the transmission system can cover great distances. For a given amount of power, transmission efficiency is greater at higher voltages and lower currents. Therefore, voltages are stepped up at the generating station, and stepped down at local substations for distribution to customers. Most transmission

2548-411: Is stored in the immediate short term by the rotational kinetic energy of the generators. Although the speed is kept largely constant, small deviations from the nominal system frequency are very important in regulating individual generators and are used as a way of assessing the equilibrium of the grid as a whole. When the grid is lightly loaded the grid frequency runs above the nominal frequency, and this

2639-408: Is taken as an indication by Automatic Generation Control systems across the network that generators should reduce their output. Conversely, when the grid is heavily loaded, the frequency naturally slows, and governors adjust their generators so that more power is output ( droop speed control ). When generators have identical droop speed control settings it ensures that multiple parallel generators with

2730-605: Is that a local area produces all of the energy it uses. Example implementations include: A wide area synchronous grid , also known as an "interconnection" in North America, directly connects many generators delivering AC power with the same relative frequency to many consumers. For example, there are four major interconnections in North America (the Western Interconnection , the Eastern Interconnection ,

2821-566: Is the final stage in the delivery of power; it carries electricity from the transmission system to individual consumers. Substations connect to the transmission system and lower the transmission voltage to medium voltage ranging between 2  kV and 35 kV . But the voltage levels varies very much between different countries, in Sweden medium voltage are normally 10  kV between 20 kV . Primary distribution lines carry this medium voltage power to distribution transformers located near

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2912-584: Is the maximum power output on a grid that is immediately available over a given time period, and is a far more useful figure. Most grid codes specify that the load is shared between the generators in merit order according to their marginal cost (i.e. cheapest first) and sometimes their environmental impact. Thus cheap electricity providers tend to be run flat out almost all the time, and the more expensive producers are only run when necessary. Failures are usually associated with generators or power transmission lines tripping circuit breakers due to faults leading to

3003-405: Is the process of generating electric power at power stations . This is done ultimately from sources of primary energy typically with electromechanical generators driven by heat engines from fossil , nuclear , and geothermal sources, or driven by the kinetic energy of water or wind. Other power sources are photovoltaics driven by solar insolation, and grid batteries . The sum of

3094-549: The European Energy Exchange (EEX). Each of the interconnects in North America are run at a nominal 60 Hz, while those of Europe run at 50 Hz. Neighbouring interconnections with the same frequency and standards can be synchronized and directly connected to form a larger interconnection, or they may share power without synchronization via high-voltage direct current power transmission lines ( DC ties ), or with variable-frequency transformers (VFTs), which permit

3185-452: The French : Constructions Électriques de France , Tarbes; a manufacturer of electric locomotives as well as electrical and hydraulic equipment. In 1969, Compagnie Générale d'Électricité (CGE) became the majority shareholder of Alsthom. In 1976, Alsthom merged with Chantiers de l'Atlantique , becoming Alsthom Atlantique. Thus, the business expanded into marine. The next year, it constructed

3276-728: The Prevention of Corruption Act 1906 and Criminal Law Act 1977 . Further charges were brought in late 2014 by the SFO in relation to corrupt practices used to obtain energy contracts in Lithuania. Additional charges relating to contracts for the Budapest Metro in Hungary were added in April 2015. In December 2018, three executives of Alstom were found guilty of conspiracy to corrupt following an investigation by

3367-595: The Quebec Interconnection and the Texas Interconnection ). In Europe one large grid connects most of Western Europe . A wide area synchronous grid (also called an "interconnection" in North America) is an electrical grid at a regional scale or greater that operates at a synchronized frequency and is electrically tied together during normal system conditions. These are also known as synchronous zones,

3458-552: The 1,067.2 kilometres (663.1 mi) from Calais to Marseille in 3 hours and 29 minutes. In 1986, Alsthom Belfort received an order from EDF for the largest gas turbine in the world (212 MW). In 1988–89, holding company CGEE Alsthom acquired ACEC Énergie (hydroturbines and electrical equipment for the nuclear industry) and ACEC Automatisme (automation) from the dissolution of Belgian electrical engineering company ACEC . Alsthom acquired 100% of ACEC's transport division, renaming it ACEC Transport . In early 1989, GEC Alsthom

3549-470: The 1990s, the company expanded its holdings in the rail sector, acquiring German rolling stock manufacturer Linke-Hofmann-Busch and Italian rail signaling specialist Sasib Railways. In 1998, GEC Alsthom was listed on the Paris Stock Exchange and, later that year, it was rebranded Alstom. At the time, the company was manufacturing railway rolling stock, power generation equipment and ships. In 2003,

3640-669: The Belfort plant's closure in the short to medium term. In June 2017, Alstom opened the largest train modernisation facility in the UK at Halebank on the outskirts of Liverpool . Initial work involved the repainting of the Class 390 Pendolino s. On 12 November 2024, Alstom announced on their official website that the first of 35 fully automated metropolis trains has been delivered to Taiwan . The four-car stainless-steel train can carry up to 700 passengers, including 108 seated, with speeds up to 100 km/h. On 26 September 2017, Alstom announced

3731-618: The European Commission voiced its concerns surrounding the proposed merger of the two companies, particularly that the combined entity would be too dominant in the European market; alleged impacts from such dominance included potential increases in passenger fares and cargo fees. Furthermore, a series of popular protests concerning the financial reforms of both the French territorial railway infrastructure and SNCF occurred. The proposed merger

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3822-419: The French government stated it did not back GE's bid, citing concerns on the future of Alstom's rail division as a smaller separate entity, suggesting that GE transfer its own rail division to Alstom; other concerns were over the civil nuclear field's national independence, and French jobs. On 14 May, France issued a decree ( Décret n° 2014-479 du 14 mai 2014 . ), nicknamed " décret Alstom ", extending to power of

3913-507: The French government's 21% holding in Alstom for €2 billion. Later that year, Bouygues elected to increase its shareholding in the firm to 24%. In 2007, the TGV POS set the world speed record for rail vehicles of 574.8 kilometres per hour (357.2 mph). In March, Alstom acquired Power Systems Manufacturing LLC ( Florida , USA) a manufacturer of gas turbine components from Calpine Corporation for $ 242 million. In June, Alstom acquired

4004-752: The French state agreed terms with Bouygues, buying a 20% stake in Alstom from Bouygues at a 2–5% discount on a minimum value of ≈€35 per share. Initially, the acquisition was expected to be finalised by early 2015. In early 2015, the EU Competition Commission began examining the deal. Both EU and US competition regulators approved the deal by September 2015, subject to the divestiture of Alstom's large and very large gas turbine (GT26 and GT36 models) manufacturing and service business; and its GE7FA gas turbine aftermarket parts subsidiary business, Power Systems Mfg. LLC (PSM), to another company, Ansaldo Energia . The sale of Alstom's energy division to GE

4095-656: The Indian Railways to construct an electric locomotive factory in Madhepura ( Bihar ), receiving an initial order of 800 twin-section 9MW locomotives for use on the Eastern Dedicated Freight Corridor , valued at ₹190 billion (about US$ 2.9 billion). This factory was to be operated under a joint venture with the Ministry of Railways (26%) at a cost of ₹ 13 billion (roughly US$ 200 million). In September 2015, it

4186-554: The SFO into allegations of several Lithuanian politicians and officials being offered bribes in return for securing contracts. In February 2020, the United Nations published a database of all business enterprises involved in certain specified activities related to the Israeli settlements . Alstom has been listed on the database in light of its involvement in activities related to "the provision of services and utilities supporting

4277-608: The Spanish wind turbine manufacturer Ecotècnia, renamed as Alstom Ecotècnia (since 2010 Alstom Wind ). The company also adopted a new graphic chart (logo, corporate identity) using "alstom" as its trading name, reserving "Alstom SA" for legal documents. In 2009, Alstom acquired a 25% stake in the Russian locomotive manufacturer Transmashholding . Six years later, Alstom decided to increase its shareholding in Transmashholding to 33% at

4368-757: The US conglomerate General Electric . In late 2014, Alstom was fined $ 772 million by the DOJ, and admitted guilt under the Foreign Corrupt Practices Act in relation to bribes paid to obtain contracts in various countries. In mid-2014, Alstom Network UK was charged by the UK Serious Fraud Office (SFO) in relation to corruption offences alleged to have been committed when obtaining transportation contracts in India, Poland and Tunisia, covered under sections 1 of

4459-474: The ballasts were later removed completely. The passenger locomotives were later assigned for freight service because of low reliability and introduction of more reliable ER24PC locomotives. As of the early of 2016 only a third of AD43C locomotives are in revenue service. These locomotives have undergone substantial modifications since RAI put them into service. Most of the out of service locomotives have been cannibalized for salvaging components to make operation of

4550-479: The company bought out ABB's share in the former joint venture ABB Alstom Power. In 2000, Alstom sold its diesel engine businesses ( Ruston , Paxman , and Mirrlees Blackstone ) to MAN Group . It also acquired a 51% stake in Italian rail manufacturer Fiat Ferroviaria , a world leader in tilting technology. In April 2003, Alstom sold its industrial turbine business to Siemens for €1.1 billion. By 2003, Alstom

4641-401: The company required a €3.2 billion bailout from the French government. As a result, Alstom was compelled to dispose of several of its divisions, including shipbuilding and electrical transmission to Areva , in order to comply with European Union rules on state aid . In 2004, Alstom remained in financial difficulties, having incurred massive unexpected costs (€4 billion) arising from

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4732-730: The company signed a letter of agreement to purchase the transportation division of the financially struggling Bombardier Inc. The purchase was finalized in January 2021. Alsthom was founded in 1928 from the merger of French heavy engineering subsidiary of the Thomson-Houston Electric Company – the Compagnie Française Thomson Houston, CFTH – and the Société Alsacienne de Constructions Mécaniques . In 1932, Alsthom expanded into transportation by acquiring

4823-467: The consumers to adjust the voltage and keep it within specification. In a synchronous grid all the generators must run at the same frequency, and must stay very nearly in phase with each other and the grid. Generation and consumption must be balanced across the entire grid, because energy is consumed as it is produced. For rotating generators, a local governor regulates the driving torque, maintaining almost constant rotation speed as loading changes. Energy

4914-429: The course of a whole 24 hour period. An entire synchronous grid runs at the same frequency, neighbouring grids would not be synchronised even if they run at the same nominal frequency. High-voltage direct current lines or variable-frequency transformers can be used to connect two alternating current interconnection networks which are not synchronized with each other. This provides the benefit of interconnection without

5005-456: The customer's premises. Distribution transformers again lower the voltage to the utilization voltage . Customers demanding a much larger amount of power may be connected directly to the primary distribution level or the subtransmission level. Distribution networks are divided into two types, radial or network. In cities and towns of North America, the grid tends to follow the classic radially fed design. A substation receives its power from

5096-703: The development of its tidal energy business, Alstom acquired Tidal Generation Ltd from Rolls-Royce , however this was later sold to GE in 2015 as part of the sale of Alstom's energy business. In November 2013, Alstom announced it planned to raise €1 to €2 billion through sale of some non-core assets, plus the possible sale of a stake in Alstom Transport, and cut 1,300 jobs. In 2014, Alstom sold its steam auxiliary components activities (air preheaters and gas-gas heaters for thermal power, other industrial heat transfer equipment, and grinding mills) to Triton Partners for €730 million. In November 2014 Alstom

5187-466: The diesel locomotive manufacturer Meinfesa to Vossloh , and Alstom Power Rentals to APR LLC. Six years later, Alstom re-acquired the electric power transmission division of Areva. In 2005, the former Metro-Cammell rail vehicle works in Washwood Heath closed. In the same year, Alstom sold its Australian subsidiary, Alstom Transport Australia and New Zealand, to United Group , which became part of

5278-508: The event of disturbances. One disadvantage of a wide-area synchronous grid is that problems in one part can have repercussions across the whole grid. For example, in 2018 Kosovo used more power than it generated due to a dispute with Serbia , leading to the phase across the whole synchronous grid of Continental Europe lagging behind what it should have been. The frequency dropped to 49.996 Hz. This caused certain kinds of clocks to become six minutes slow. A super grid or supergrid

5369-502: The first 1300 MW generator set for the Paluel Nuclear Power Plant , setting a world record with an output of 1500 MW. In 1978, Alsthom delivered its first TGV to SNCF . The TGV went on to break world rail speed records in 1981 (at 380 kilometres per hour (240 mph)) and in 1990 (at 515.3 kilometres per hour (320.2 mph)). It also set the world endurance record for high-speed train lines in 2001, travelling

5460-543: The in-service locomotives possible. As maintaining of the locomotives in service out-costs their revenue, Iranian railways has decided to retrofit these locomotives with other engines. Alstom Alstom SA is a French multinational rolling stock manufacturer which operates worldwide in rail transport markets. It is active in the fields of passenger transportation, signaling, and locomotives, producing high-speed, suburban, regional and urban trains along with trams. The company and its name (originally spelled Alsthom)

5551-508: The largest of which is the synchronous grid of Continental Europe (ENTSO-E) with 667  gigawatts (GW) of generation, and the widest region served being that of the IPS/UPS system serving countries of the former Soviet Union. Synchronous grids with ample capacity facilitate electricity market trading across wide areas. In the ENTSO-E in 2008, over 350,000 megawatt hours were sold per day on

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5642-537: The latter's UGL Rail division. Alstom would restart its manufacturing operations in Australia by the early 2010s. In 2006, Alstom sold its Marine Division to the Norwegian group Aker Yards , with a commitment to retain 25% of the shares until 2010; it also sold Alstom Power Conversion, which became Converteam , in a leveraged buy-out deal funded by Barclays Private Equity France SAS. In June 2006, Bouygues acquired

5733-542: The losses of AC. Over very long distances, these efficiencies can offset the additional cost of the required AC/DC converter stations at each end. Substations may perform many different functions but usually transform voltage from low to high (step up) and from high to low (step down). Between the generator and the final consumer, the voltage may be transformed several times. The three main types of substations, by function, are: Aside from transformers, other major components or functions of substations include: Distribution

5824-501: The maintenance and existence of settlements" and "the use of natural resources, in particular water and land , for business purposes". On 5 July 2021, Norway 's largest pension fund KLP said it would divest from Alstom together with 15 other business entities implicated in the UN report for their links to Israeli settlements in the occupied West Bank. On 24 April 2014, unconfirmed reports claimed that US conglomerate General Electric (GE)

5915-554: The marine market. Alstom's share price had dropped by 90% over two years. European competition commission law required Alstom to sell several of its subsidiaries, including its shipbuilding and electrical transmission assets, when it accepted a €3.2 billion rescue plan involving the French state. In 2004, the French state took a 21% stake in Alstom for €772 million and Alstom received an EU-approved bailout worth in total €2.5 billion. The company sold its electrical transmission and distribution ("grid") activities to Areva ,

6006-653: The multinational train maker headquartered in Berlin , Germany for between €5.8 billion and €6.2 billion. The deal required the approval by Alstom shareholders at a meeting to be held in October 2020 and approval by European regulators. Bombardier's major shareholder, Caisse de dépôt et placement du Québec , had already agreed to the sale. Power grid Grids are nearly always synchronous, meaning all distribution areas operate with three phase alternating current (AC) frequencies synchronized (so that voltage swings occur at almost

6097-694: The need to synchronize an even wider area. For example, compare the wide area synchronous grid map of Europe with the map of HVDC lines. The sum of the maximum power outputs ( nameplate capacity ) of the generators attached to an electrical grid might be considered to be the capacity of the grid. However, in practice, they are never run flat out simultaneously. Typically, some generators are kept running at lower output powers ( spinning reserve ) to deal with failures as well as variation in demand. In addition generators can be off-line for maintenance or other reasons, such as availability of energy inputs (fuel, water, wind, sun etc.) or pollution constraints. Firm capacity

6188-559: The power outputs of generators on the grid is the production of the grid, typically measured in gigawatts (GW). Electric power transmission is the bulk movement of electrical energy from a generating site, via a web of interconnected lines, to an electrical substation , from which is connected to the distribution system. This networked system of connections is distinct from the local wiring between high-voltage substations and customers. Transmission networks are complex with redundant pathways. Redundancy allows line failures to occur and power

6279-442: The proposed merger with Siemens. On 6 February 2019, the planned merger between the two companies was vetoed by the European Commission. In response to this ruling, Alstom's Chief Executive Officer Henri Poupart-Lafarge stated that he viewed the decision to block the merger was a result of "ideological prejudices". In mid-February 2020, Alstom announced that it had signed a Memorandum of Agreement to buy Bombardier Transportation ,

6370-518: The remainder at Wagon Pars in Iran. After production of an initial batch by Ruston the remaining engines were to be built by DESA in Iran under a technology transfer agreement. The locomotives are a 6-axle Co'Co' twin cab design, incorporating a RK 215 engine with a power at rail of 2,880 kW (3,860 hp). After premature failures both in engine and turbocharger RAI has de-rated the engine power gradually up to 2400 Kw. Three variants were produced,

6461-630: The sale of GE's rail signalling unit to Alstom. On 20 June, Siemens and MHI modified their bid, with MHI increasing its stake in Alstom's steam, hydro, and grid businesses to 40% in all three (total €3.9 billion) while Siemens increased its offer by €400 million to €4.3 billion. Subsequently, Economy minister Arnaud Montebourg stated he would block both bids, but the French government backed GE's offer and had given GE more specifications on commitments and guarantees; it also intended to buy two-thirds of Bouygues' shareholding (20%). The next day, Alstom's board backed GE's revised bid. On 22 June,

6552-512: The same settings share load in proportion to their rating. In addition, there's often central control, which can change the parameters of the AGC systems over timescales of a minute or longer to further adjust the regional network flows and the operating frequency of the grid. For timekeeping purposes, the nominal frequency will be allowed to vary in the short term, but is adjusted to prevent line-operated clocks from gaining or losing significant time over

6643-509: The same time). This allows transmission of AC power throughout the area, connecting the electricity generators with consumers. Grids can enable more efficient electricity markets . Although electrical grids are widespread, as of 2016 , 1.4 billion people worldwide were not connected to an electricity grid. As electrification increases, the number of people with access to grid electricity is growing. About 840 million people (mostly in Africa), which

6734-421: The security of the civil nuclear sector, and on job commitments made by Alstom Wind , whilst making its wind activities available to investors. On 30 April, Alstom confirmed that an offer for its power and grid divisions (representing an equity value of €12.35 billion, €11.4 billion enterprise value ) was under review with key interests including the French state. On 30 April, GE confirmed it had made

6825-762: The state to veto the takeover of "strategic interests" into areas of energy supply, water, transport, telecoms and public health. Both the French employer organisation MEDEF and the European Commissioner for Internal Market and Services ( Michel Barnier ) responded negatively to the decree. On 16 June, Siemens and Mitsubishi Heavy Industries (MHI) submitted a competing offer for Siemens to acquire Alstom's gas turbine activities for €3.9 billion while MHI would form joint ventures with Alstom, acquiring 40%, 20% and 20% stakes in Alstom's steam and nuclear, electrical grid, and hydroelectric businesses respectively, for €3.1 billion. The proposal included an offer to buy

6916-404: The substation, but for reliability reasons, usually contains at least one unused backup connection to a nearby substation. This connection can be enabled in case of an emergency, so that a portion of a substation's service territory can be alternatively fed by another substation. Grid energy storage (also called large-scale energy storage ) is a collection of methods used for energy storage on

7007-433: The transmission network, the power is stepped down with a transformer and sent to a bus from which feeders fan out in all directions across the countryside. These feeders carry three-phase power, and tend to follow the major streets near the substation. As the distance from the substation grows, the fanout continues as smaller laterals spread out to cover areas missed by the feeders. This tree-like structure grows outward from

7098-414: The use of peaking power plants to fill in supply gaps and demand response to shift load to other times. The demand, or load on an electrical grid is the total electrical power being removed by the users of the grid. The graph of the demand over time is called the demand curve . Baseload is the minimum load on the grid over any given period, peak demand is the maximum load. Historically, baseload

7189-482: The year. Neighboring utilities also help others to maintain the overall system frequency and also help manage tie transfers between utility regions. Electricity Interconnection Level (EIL) of a grid is the ratio of the total interconnector power to the grid divided by the installed production capacity of the grid. Within the EU, it has set a target of national grids reaching 10% by 2020, and 15% by 2030. Electricity generation

7280-565: Was announced that Amtrak would award Alstom a contract for $ 2.5 billion for the next generation high-speed train sets for the Northeast Corridor . This would result in the creation of 750 jobs across upstate New York with 400 direct manufacturing jobs at Alstom. The order for 28 Avelia Liberty trainsets was officially confirmed in August 2016 by Amtrak. These trainsets are manufactured at Alstom's plant in Hornell, New York . In March 2016,

7371-591: Was awarded a $ 429.4 million contract to modernise 85 trains for the Mexico City Metro system. Starting in 2009, Alstom's practices were questioned by the United States Department of Justice (DOJ), which violated the 1977 Foreign Corrupt Practices Act . This American law has extraterritorial scope. At the time, Alstom seemed to cooperate with the proceedings. In 2010, the DOJ opened an investigation into Alstom's commercial practices, focusing on

7462-404: Was commonly met by equipment that was relatively cheap to run, that ran continuously for weeks or months at a time, but globally this is becoming less common. The extra peak demand requirements are sometimes produced by expensive peaking plants that are generators optimised to come on-line quickly but these too are becoming less common. However, if the demand of electricity exceed the capacity of

7553-401: Was facing a financial crisis caused by a mix of poor sales and over $ 5 billion of debt liabilities. It reportedly had the potential to force the company's liquidation. These heavy debts were largely due to a $ 4 billion charge over a design flaw in a turbine developed by ABB , acquired by Alstom in 2000, as well as the collapse of customer Renaissance Cruises amid a general downturn in

7644-500: Was finalised on 2 November 2015; the final valuation being €12.4 billion, of which €9.7 billion was transferred to Alstom, the remainder being reinvested in GE/Alstom joint ventures plus other corrections. The acquired businesses were reorganised within GE's existing power generation business ( GE Power & Water ) as GE Power . The remainder of Alstom Group, including GE Signalling (acquired via

7735-584: Was formed by a merger between the electric engineering division of Société Alsacienne de Constructions Mécaniques (Als) and Compagnie Française Thomson-Houston (thom) in 1928. Significant acquisitions later included the Constructions Électriques de France (1932), shipbuilder Chantiers de l'Atlantique (1976), and parts of ACEC (late-1980s). A merger with parts of the British General Electric Company formed GEC Alsthom in 1989. Throughout

7826-535: Was formed from a 50–50 merger of Alsthom and the Power Systems Division of the British General Electric Company ; for Alsthom this move was intended to aid Alsthom in selling its products outside the French market. In May of that year GEC Alsthom bought British rail vehicle manufacturer Metro-Cammell . During the early-1990s, GEC Alsthom was the principal manufacturer of the British Rail Class 373 ,

7917-481: Was in acquisition talks with Alstom for $ 13 billion with the support of 29%-shareholder Bouygues, causing Alstom's share price to rise 18% in one day. On 27 April, Le Figaro reported that a rival 'cash plus asset swap' offer was issued by Siemens , trading Alstom's power business for part of its rail arm, plus a cash offer as good as GE's and job guarantees. Siemens' bid was reportedly promoted by French economic minister Arnaud Montebourg . Siemens and Alstom had

8008-486: Was listed on the Paris Stock Exchange ; both GEC and Alcatel elected to sell off part of their stakes (23.6% each). Around this time, the company was officially renamed Alstom . In 1999, Alstom bought half of ABB 's power systems division, forming a 50-50 joint company known as ABB Alstom Power. Alstom also bought Canada's Télécité, a passenger information and security solutions company, and sold its heavy-duty gas turbine business to General Electric . The next year,

8099-583: Was sold to Ansaldo Energia , and GE agreed to sell Alstom's rail signalling business. The deal was finalised in November 2015; since then, Alstom has been operating solely in the rail sector. In an attempt to grow its rail business, in late-2017, Alstom announced a proposed merger with Siemens Mobility . However, in February 2019, the European Commission prohibited the merger. Subsequently, in February 2020,

8190-524: Was to cease locomotive manufacturing at its Belfort (France) site by 2018 due to low orders; remaining production activity was to be transferred to its facility of Alstom DDF in Reichshoffen , Alsace . However, during October 2016, the French state placed an order of about €650 million for 15 TGV Euroduplex trains; an order for 20 locomotives; plus an order for 30 intercity trains to be built at Reichshoffen. Together, these orders were sufficient to prevent

8281-464: Was viewed by some as a measure to counter the rise of rival Chinese rail business CRRC ; it reportedly received support from many figures within both the French and German governments. The transaction, which was originally due to close by the end of 2018, was met with opposition by French trade union officials who voiced their concerns that such a merger would have the potential for job losses. On 17 July 2018, Alstom shareholders overwhelmingly approved

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