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116-517: A super grid or supergrid is a wide-area transmission network , generally trans-continental or multinational, 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 typically are proposed to 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 1,000 km. Super grids could support

232-469: A power outage , known as a blackout . A power outage (also called a power cut , a power out , a power blackout , power failure or a blackout ) is a loss of the electric power to a particular area. Commonwealth of Independent States The Commonwealth of Independent States ( CIS ) is a regional intergovernmental organization in Eurasia . It was formed following the dissolution of

348-576: A CSTO peacekeeping force. One of the CST's original objectives was to resolve conflicts between CIS members, however military conflicts such as Russia's open assistance and support to the two secessionist areas in Georgia, Russia seizing Crimea and support to secessionist areas in Ukraine, the conflict between Armenia and Azerbaijan, and Kyrgyzstan and Tajikistan border issues have demonstrated how ineffective

464-632: A Founding state. Ukraine did participate in the CIS and became an associate member of the CIS Economic Union in 1994, and signed the Commonwealth of Independent States Free Trade Area in 2011. Ukraine withdrew its representatives from the CIS in May 2018 and stopped actively participating in the CIS, but remained a party to a number of agreements, such as the free trade area. Although Ukraine

580-587: A change of government in a series of colour revolutions : Eduard Shevardnadze was overthrown in Georgia; Viktor Yushchenko was elected in Ukraine; and Askar Akayev was toppled in Kyrgyzstan. In February 2006, Georgia withdrew from the Council of Defense Ministers, with the statement that "Georgia has taken a course to join NATO and it cannot be part of two military structures simultaneously", but it remained

696-497: 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

812-580: A course to join NATO and it cannot be part of two military structures simultaneously". However, it remained a full member of the CIS. In the aftermath of the Russo-Georgian War in 2008, President Saakashvili announced during a public speech in the capital city Tbilisi that Georgia would leave the CIS and the Georgian Parliament voted unanimously on 14 August 2008 to withdraw from the regional organization. On 18 August 2008

928-465: 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

1044-433: A forum for discussing issues related to the social and economic development of the newly independent states. To achieve this goal member states have agreed to promote and protect human rights. Initially, efforts to achieve this goal consisted merely of statements of goodwill, but on 26 May 1995, the CIS adopted a Commonwealth of Independent States Convention on Human Rights and Fundamental Freedoms. In 1991, four years before

1160-560: A full member of the CIS until August 2009, one year after officially withdrawing in the immediate aftermath of the Russo-Georgian War . In March 2007, Igor Ivanov , the secretary of the Russian Security Council, expressed his doubts concerning the usefulness of the CIS, emphasizing that the Eurasian Economic Community was becoming a more competent organization to unify the largest countries of

1276-472: 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 . The idea of creating long-distance transmission lines in order to take advantage of renewable sources distantly located is not new. In the US in the 1950s, a proposal was made to ship hydroelectric power from dams being constructed in

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1392-437: 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 returned to the grid when demand is high, and electricity prices tend to be higher. As of 2020 , the largest form of grid energy storage

1508-428: 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

1624-521: 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

1740-617: A number of agreements including the 2001 Commonwealth of Independent States (CIS) agreement on cooperation in the provision of safety of hazardous industrial facilities , the 1996 CIS agreement on cooperation in evacuating nationals from third countries in emergencies , the 1992 Agreement between the State Parties of the Commonwealth of Independent States on social and legal guarantees of the military personnel, persons discharged from military service, and members of their families ,

1856-593: A result of network complexity, transmission congestion , and the need for rapid diagnostic, coordination and control systems. Such studies observe that transmission capacity would need to be significantly higher than current transmission systems in order to promote unimpeded energy trading across distances unbounded by state, regional or national, or even continental borders. As a practical matter, it has become necessary to incorporate smart grid features such as wide area sensor networks (WAMS) into even modest-sized regional grids in order to avert major power outages such as

1972-689: A rising political crisis in the country, Mikhail Gorbachev , the president of the Soviet Union , proposed a federation by holding a referendum to preserve the Union as a union of sovereign republics . The new treaty signing never happened as the Communist Party hardliners staged an attempted coup in Moscow in August that year. Following the events of the failed 1991 coup , many republics of

2088-402: A super grid is a very long-distance equivalent of a wide area synchronous network capable of large-scale transmission of renewable electricity. In some conceptions, a transmission grid of HVDC transmission lines forms a layer that is distinctly separate in the way that a superhighway system is separate from the system of city streets and regional highways. In more conventional conceptions such as

2204-745: 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

2320-524: 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

2436-511: 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

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2552-549: Is a wide area mega grid, but also because it is highly coordinated from a macro level spanning nations and continents, all the way down to the micro-level scheduling low priority loads like water heaters and refrigeration. In the European SuperSmart Grid proposal and the US Unified Smart Grid concept, such super grids have intelligence features in the wide-area transmission layer which integrate

2668-885: 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

2784-498: 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

2900-410: Is argued that a high capacity super grid must be built in order to provide a distribution network so comprehensive and with such available capacity that energy trading is only limited by how much electricity entrepreneurs can bring to market. Wide area super grids plans typically call for bulk transmission using high voltage direct current lines. Europe's SuperSmart Grid proposal relies on HVDC, and in

3016-463: Is because the feeder line from the generator to the transmission lines is usually paid for by the owner of the generation. Some localities will help pay for the cost of these lines, at the cost of local regulation such as that of a public utilities commission . T. Boone Pickens' project has chosen to pay for the feeder lines privately. Some localities, such as Texas give such projects the power of eminent domain which allows companies to seize land in

3132-501: 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

3248-422: 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

3364-745: Is modelled on the European Convention on Human Rights , but lacking the strong implementation mechanisms of the latter. In the CIS treaty, the Human Rights Commission has very vaguely defined authority. The Statute of the Human Rights Commission, however, also adopted by the CIS Member States as a decision, gives the commission the right to receive inter-state as well as individual communications. CIS members, especially in Central Asia , continue to have among

3480-417: 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

3596-411: 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

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3712-408: 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

3828-632: 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 ,

3944-570: 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

4060-584: 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

4176-406: Is the process of generating electric power from sources of primary energy typically at power stations . Usually this is done with electromechanical generators driven by heat engines or the kinetic energy of water or wind. Other energy sources include solar photovoltaics , nuclear power , and geothermal power . The sum of the power outputs of generators on the grid is the production of

4292-474: Is the scale of energy and distances that are imagined possible in a super grid. Europe began unifying its grids in the 1950s and its largest unified grid is the synchronous grid of Continental Europe serving 24 countries. Serious work is being conducted on unification of this synchronous European grid (previously known as the UCTE grid), with the neighboring synchronous transmission grid of some CIS countries,

4408-575: The Belovezha Accords on 8 December 1991, declaring that the Union had effectively ceased to exist and proclaimed the CIS in its place. On 21 December, the Alma-Ata Protocol was signed. Estonia , Latvia and Lithuania chose not to participate. Georgia withdrew its membership in 2008 following a war with Russia . Ukraine formally ended its participation in CIS statutory bodies in 2018, although it had stopped participating in

4524-697: The Eurasian Economic Union (alongside subdivisions, the Eurasian Customs Union and the Eurasian Economic Space ); and the Union State . While the first and the second are military and economic alliances, the third aims to reach a supranational union of Russia and Belarus with a common government and currency. The CIS as a shared Russophone social, cultural, and economic space has its origins in

4640-559: 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

4756-666: The IPS/UPS grid. If completed, the resulting massive grid would span 13 time zones stretching from the Atlantic to the Pacific. While such grids cover great distances, the capacity to transmit large volumes of electricity remains limited due to congestion and control issues. The SuperSmart Grid (Europe) and the Unified Smart Grid (US) specify major technological upgrades that proponents claim are necessary to assure

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4872-483: The Northeast Blackout of 2003 . Dynamic interactions between power generation groups are increasingly complex, and transient disturbances that cascade across neighboring utilities can be sudden, large and violent, accompanied by abrupt changes in the network topology as operators attempt to manually stabilize the network. In the second sense of an advanced grid, the super grid is superior not only because it

4988-726: The Pacific Intertie project with a set of technical objections that were overruled. When the project was completed, consumers in Los Angeles saved approximately U.S. $ 600,000 per day by use of electric power from projects on the Columbia River rather than local power companies burning more expensive fossil fuel. Grid (electricity) 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

5104-562: The Pacific Northwest to consumers in Southern California , but it was opposed and scrapped. In 1961, U.S. president John F. Kennedy authorized a large public works project using new high-voltage, direct current technology from Sweden . The project was undertaken as a close collaboration between General Electric of the U.S. and ASEA of Sweden , and the system was commissioned in 1970. With several upgrades of

5220-621: 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,

5336-949: The Russian Empire , which was replaced in 1917 by the Russian Republic after the February Revolution earlier that year. Following the October Revolution , the Russian Soviet Federative Socialist Republic became the leading republic in the Soviet Union (USSR) upon its creation with the 1922 Treaty and Declaration of the Creation of the USSR along with Byelorussian SSR , Ukrainian SSR and Transcaucasian SFSR . In March 1991, amidst Perestroika and

5452-525: The Soviet Union in 1991, and is its legal successor. It covers an area of 20,368,759 km (7,864,422 sq mi) and has an estimated population of 239,796,010. The CIS encourages cooperation in economic, political, and military affairs and has certain powers relating to the coordination of trade, finance, lawmaking, and security, including cross-border crime prevention. As the Soviet Union disintegrated, Belarus , Russia , and Ukraine signed

5568-409: The electricity transmission corridors used by the new transmission lines of a super grid. There can be significant opposition to the siting of power lines out of concerns about visual impact, anxiety over perceived health issues, and environmental concerns. The US has a process of designating National Interest Electric Transmission Corridors , and it is likely that this process would be used to specify

5684-526: The "Agreement Establishing the Commonwealth of Independent States", known as the Belovezh Accords ( Russian : Беловежские соглашения , romanized :  Belovezhskiye soglasheniya ). The CIS announced that the new organization would be open to all republics of the former Soviet Union and to other nations sharing the same goals. The CIS charter stated that all the members were sovereign and independent nations and thereby effectively abolished

5800-563: The 15 former Soviet Republics participated in the CIS, the three non-participants being the Baltic states , which were occupied by the Soviet Union. The CIS and Soviet Union also legally co-existed briefly with each other until 26 December 1991, when the Soviet of the Republics formally dissolved the Soviet Union. This was followed by Ivan Korotchenya becoming Executive Secretary of the CIS on

5916-723: The 1992 Agreement on the Establishment of the Council of Commanders of the Border Troops and the Agreement on the Creation of the Interstate System of Documentary Encrypted Communications of the Commonwealth of Independent States . Following the overthrow of Eduard Shevardnadze in Georgia, Georgia officially withdrew from the Council of Defense Ministers in February 2006, stating that "Georgia has taken

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6032-512: The 1995 human rights treaty , article 33 of the Charter of the CIS created a Human Rights Commission with its seat in Minsk, Belarus. This was confirmed by the decision of the Council of Heads of States of the CIS in 1993. In 1995, the CIS adopted a human rights treaty that includes civil and political as well as social and economic human rights. This treaty entered into force in 1998. The CIS treaty

6148-642: The British electricity transmission system that are connected at voltages in excess of 200 kV (200,000 volts). British power system planners and operational staff therefore invariably speak of the Supergrid in this context; in practice the definition used captures all of the equipment owned by the National Grid company in England and Wales, and no other equipment. What has changed during the past 40 years

6264-531: The CIS "on a selective basis". Since that month, Ukraine has had no representatives in the CIS Executive Committee building. In April 2018, Ukrainian President Petro Poroshenko indicated that Ukraine would formally leave the CIS. On 19 May 2018, Poroshenko signed a decree formally ending Ukraine's participation in CIS statutory bodies. As of 1 June 2018, the CIS secretariat had not received formal notice from Ukraine of its withdrawal from

6380-498: The CIS (art. 7). Other states can participate as associate members or observers if accepted as such by a decision of the Council of Heads of State to the CIS (art. 8). All the founding states apart from Ukraine and Turkmenistan ratified the Charter of the CIS and became member states of it. Nevertheless, Ukraine and Turkmenistan kept participating in the CIS, without being member states of it. Turkmenistan became an associate member of

6496-661: The CIS Charter in January 1993, making them "founding states of the CIS", but did not ratify the Charter itself that would make them full members. These states, while not being formal members of the CIS, were allowed to participate in CIS. They were also allowed to participate in various CIS initiatives, e.g. the Free Trade Area, which were, however, formulated mostly as independent multilateral agreements, and not as internal CIS agreements. Turkmenistan has not ratified

6612-484: The CIS entirely by the end of 2024. A country can become an associate member under the CIS Charter (sec. 2, art. 8) if approved by the Council of Heads of States. Participation of associate members and of the observers in the work of the Commonwealth organs shall be governed by their rules of procedures. Two states, Ukraine and Turkmenistan ratified the CIS Creation Agreement before the adoption of

6728-639: The CIS in August 2005. Georgia left the CIS altogether in 2009 and Ukraine stopped participating in 2018. The work of CIS is coordinated by the general secretary. The Interparliamentary Assembly was established on 27 March 1992 in Kazakhstan . On 26 May 1995, the CIS leaders signed the Convention on the Interparliamentary Assembly of Member Nations of the Commonwealth of Independent States eventually ratified by nine parliaments,

6844-529: The CIS member states is the creation, in 1995, of the joint CIS Air Defense System . Over the years, the military personnel of the joint CIS Air Defense System grew twofold along the western, European border of the CIS, and by 1.5 times on its southern borders. In 2002, the six member states agreed to create the Collective Security Treaty Organisation (CSTO) as a military alliance. In 2007, CSTO members agreed to create

6960-641: The CIS signed the Collective Security Treaty (also referred to as the Tashkent Pact or Tashkent Treaty). Three other post-Soviet states signed in 1993 and the treaty took effect in 1994 and lasted 5 years. When the treaty was subsequently renewed, three countries withdrew, leaving Armenia, Belarus, Kazakhstan, Kyrgyzstan, Russia, and Tajikistan as members. In December 1993, the CIS Armed Forces Headquarters

7076-556: The CIS, a process that would take one year to complete, following notice being given. The CIS secretariat stated that it will continue inviting Ukraine to participate. Ukraine has stated that it intends to review its participation in all CIS agreements and only continue in those that are in its interests. On 3 May 2023 Ukraine formally withdrew from the 1992 agreement that set up the CIS Interparliamentary Assembly. In 2023 and 2024 Ukraine also withdrew from

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7192-607: The CIS, it would need to legally withdraw from the Creation Agreement, as Georgia did previously. On 14 March 2014, a bill was introduced to Ukraine's parliament to denounce their ratification of the CIS Creation Agreement, but it was never approved. Following the 2014 parliamentary election , a new bill to denounce the CIS agreement was introduced. In September 2015, the Ukrainian Ministry of Foreign Affairs confirmed Ukraine will continue taking part in

7308-684: The CIS. Following the withdrawal of Georgia, the presidents of Uzbekistan, Tajikistan, and Turkmenistan skipped the October 2009 meeting of the CIS, each having their own issues and disagreements with the Russian Federation. In May 2009, Armenia, Azerbaijan, Belarus, Georgia, Moldova, and Ukraine joined the Eastern Partnership (EaP), a project that was initiated by the European Union (EU). The EaP framework governs

7424-439: The Charter (Statutes) of the CIS was signed, setting up the different institutions of the CIS, their functions, and the rules and statutes of the CIS. The Charter also defined that all countries that have ratified the Agreement on the Establishment of the CIS and its relevant (Alma-Ata) Protocol would be considered to be founding states of the CIS, with only those countries ratifying the Charter being considered to be member states of

7540-446: The Charter and therefore is not formally a member of the CIS. Nevertheless, it has consistently participated in the CIS as if it were a member state. Turkmenistan changed its CIS standing to associate member as of 26 August 2005. The cited reason was to be consistent with its 1995-proclaimed, UN-recognised, international neutrality status, but experts have cited the country no longer needing Russia to provide natural gas access, as well as

7656-403: The EU's relationship with the post-Soviet states of Armenia, Azerbaijan, Belarus, Georgia, Moldova, and Ukraine. There are nine full member states of the Commonwealth of Independent States. The Creation Agreement remained the main constituent document of the CIS until January 1993, when the CIS Charter (Russian: Устав , romanized : Ustav ) was adopted. The charter formalized

7772-476: The European-wide adoption of renewable energy and interlinking power grids using HVDC cables, indicates that Europe's entire power usage could come from renewables, with 70% total energy from wind at the same level of cost or lower as at present. To some critics, such a wide area transmission layer is not novel; they point out that the technology has little difference from that used for regional and national power transmission networks. Proponents respond that beyond

7888-406: The Istanbul Agreement (see Adapted Conventional Armed Forces in Europe Treaty ), legislative initiatives to denounce the agreement on the creation of CIS were tabled in Moldova's parliament on 25 March 2014, though they were not approved. A similar bill was proposed in January 2018. On 14 June 2022, Moldovan Minister of Foreign Affairs Nicu Popescu said the Moldovan government was considering

8004-401: The Ministry of Foreign Affairs of Georgia sent a note to the CIS Executive Committee notifying it of the aforesaid resolutions of the Parliament of Georgia and Georgia's withdrawal from CIS. In accordance with the CIS Charter (sec. 1, art. 9), Georgia's withdrawal came into effect 12 months later, on 18 August 2009. Since its inception, one of the primary goals of the CIS has been to provide

8120-497: The Soviet Union. On 21 December 1991, the leaders of eight additional former Soviet Republics ( Armenia , Azerbaijan , Kazakhstan , Kyrgyzstan , Moldova , Turkmenistan , Tajikistan and Uzbekistan ) signed the Alma-Ata Protocol which can either be interpreted as expanding the CIS to these states or the proper foundation or foundation date of the CIS, thus bringing the number of participating countries to 11. Georgia joined two years later, in December 1993. At this point, 12 of

8236-473: The US, key decision makers such as Steven Chu favor a national long distance DC grid system. There are industry advocates of high voltage alternating current (HVAC). Although flexible alternating current transmission systems ( FACTS ) have drawbacks for long distances, American Electric Power has championed a 765 kV super grid they call I-765 that would provide 400 GW of extra transmission capacity required for producing 20% of US energy from wind farms based in

8352-897: The USSR declared their independence fearing another coup. A week after the Ukrainian independence referendum was held , which kept the chances of the Soviet Union staying together low, the Commonwealth of Independent States was founded in its place on 8 December 1991 by the Byelorussian SSR , the Russian SFSR , and the Ukrainian SSR , when the leaders of the three republics met at the Belovezhskaya Pushcha Natural Reserve, about 50 km (31 mi) north of Brest in Belarus, and signed

8468-517: The concept of membership: a member country is defined as a country that ratifies the CIS Charter (sec. 2, art. 7). Additional members can join with the consent of all current members. Parties that ratified the Creation Agreement before the adoption of the Charter are considered to be "Founding states", but not members. In light of Russia's support for the independence of occupied regions within Moldova, Georgia, and Ukraine as well as its violation of

8584-467: 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

8700-703: The converter stations in the intervening decades, the system now has a capacity of 3,100 MW and is known as the Pacific DC Intertie . The concept of a "super grid" dates back to the 1960s and was used to describe the emerging unification of the Great Britain grid. In the code that governs the British Grid, the Grid Code, the Supergrid is currently defined – and has been since this code was first written, in 1990 – as referring to those parts of

8816-666: The country had signed with the CIS, as his country aims to join the European Union. On 15 May 2023, the President of the Parliament of Moldova , Igor Grosu , stated the country will withdraw from the agreement establishing the CIS Interparliamentary Assembly; he argued that being in the CIS "did not protect the Republic of Moldova from energy blackmail in the middle of winter, from threats and official statements hostile to

8932-550: The country's declining faith in the confederation's ability to maintain internal stability in light of the Colour Revolutions . The Verkhovna Rada never ratified the agreement on membership of the CIS in accordance with the CIS Charter so Ukraine never became a member. Ukraine did not apply to become an Associate member, nor was it granted by the Council of Heads of States, accordingly Ukraine remained just

9048-429: 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

9164-456: 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

9280-508: 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

9396-494: 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

9512-439: The idea of a national transmission grid in order to promote United States energy independence . Al Gore advocates the Unified Smart Grid which has comprehensive super grid capabilities. Gore and other advocates such as James E. Hansen believe super grids are essential for the eventual complete replacement of the greenhouse gas producing fossil fuel use that feeds global warming . Large amounts of land would be required for

9628-573: The independence and sovereignty of the Republic of Moldova". As part of the process to severing connections with the CIS, in July 2023 Moldova passed a law on denunciation of the agreement on Moldova's membership in the Inter-Parliamentary Assembly of the CIS countries. 70 agreements were denounced by October 2023, from the total of around 282 signed by Moldova. In December 2023, Moldova announced its intention to withdraw from

9744-450: The installation of renewable energy , currently in planning stage. One study for a European super grid estimates that as much as 750 GW of extra transmission capacity would be required – capacity that would be accommodated in increments of 5 GW with HVDC lines. A 2008 proposal by Transcanada priced a 1,600-km, 3 GW HVDC line at US$ 3 billion; it would require a corridor 60 meters wide. In India, an August 2007 6 GW, 1,825-km proposal

9860-464: 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

9976-545: The local smart grid into a virtual power plant , or a city's fleet of one million electric vehicles could be used to trim peaks in transmission supply by integrating them to the smart grid using vehicle to grid technology. One advantage of such a geographically dispersed and dynamically balanced system is that the need for baseload generation is significantly reduced since intermittency of some sources such as ocean , solar , and wind can be smoothed. A series of detailed modeling studies by Dr. Gregor Czisch, which looked at

10092-544: The local smart grids into a single wide-area super grid. This is similar to how the Internet bound together multiple small networks into a single ubiquitous network. Wide area transmission can be viewed as a horizontal extension of the smart grid. In a paradigm shift, the distinction between transmission and distribution blurs with the integration as energy flow becomes bidirectional. For example, distribution grids in rural areas might generate more energy than they use, turning

10208-542: 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

10324-400: The midwest. (See figure above). Advocates of HVAC systems point out that HVDC systems are oriented for point to point bulk transmission and multiple connections to them would require expensive complex communication and control equipment as opposed to the simple step up transformers needed if AC lines were used. Currently, there is only one multipoint long distance HVDC transmission system. In

10440-498: The more distant future, the voltage loss of current methods could be avoided using experimental superconducting " SuperGrid " technology where the transmission cable is cooled by a liquid hydrogen pipeline which is also used to move energy nationwide. The energy losses for creating, containing, and re-cooling liquid hydrogen need to be accounted for. Coordination and control of the network would use smart grid technologies such as phasor measurement units to rapidly detect imbalances in

10556-627: The national legislatures in the CIS (as well as recommendations) for their use in the preparation of new laws and amendments to existing legislation. More than 130 documents have been adopted that ensure the convergence of laws in the CIS at the level of national legislation. The Assembly is actively involved in the development of integration processes in the CIS and also sends observers to the national elections. The Assembly held its 32nd Plenary meeting in Saint Petersburg on 14 May 2009. Between 2003 and 2005, three CIS member states experienced

10672-694: 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

10788-409: The network caused by fluctuating renewable energy sources and potentially respond instantaneously with programmed automatic protection schemes to reroute, reduce load, or reduce generation in response to network disturbances. China supports the idea of a global, intercontinental super grid. For a super grid in the US, a study estimated an 80% reduction of greenhouse gas emissions in combination with

10904-609: The only CIS member not signing was Georgia. Under the terms of the convention, the InterParliamentary Assembly (IPA) was invested with international legitimacy. It is housed in the Tauride Palace in St Petersburg and acts as the consultative parliamentary wing of the CIS, created to discuss problems of parliamentary cooperation, review draft documents of common interest, and pass model laws to

11020-619: The organization in 2014 following the Russian annexation of Crimea . Following the 2022 Russian invasion of Ukraine , Moldova voiced its intention to progressively withdraw from the CIS institutional framework. Eight of the nine CIS member states participate in the CIS Free Trade Area . Three organizations originated from the CIS, namely the Collective Security Treaty Organization ,

11136-459: The path of the planned construction. Energy producers are interested in whether the super grid employs HVDC technology, or uses AC, because the cost of connection to an HVDC line is generally greater than that if the AC is used. The Pickens plan favors 765 kV AC transmission, which is considered to be less efficient for long-distance transmission. In the 1960s, private California power companies opposed

11252-561: The pathways for a super grid in that country. In the EU, permits for new overhead lines can easily reach 10 years. In some cases, this has made underground cable more expedient. Since land required can be one fifth than that for overhead and the permit process can be significantly faster, underground cable can be more attractive despite its weaknesses of being more expensive, lower capacity, shorter-lived, and suffering significantly longer downtimes. Just as superhighways change valuations of land due to

11368-399: The practical operation and promised benefits of such transcontinental mega grids. In current usage, "super grid" has two senses – one of being a superstructure layer overlaid or super-imposed upon existing regional transmission grid or grids, and the second of having some set of superior abilities exceeding those of even the most advanced grids. In the "overlay", or "superstructure" meaning,

11484-447: The proposed unification of the synchronous European grid UCTE and the IPS/UPS system of the CIS , such a mega grid is no different from typical wide area synchronous transmission systems where electricity takes an ad hoc transit route directly through local utility transmission lines or HVDC lines as required. Studies for such continental sized systems report there are scaling problems as

11600-510: The prospect of leaving the CIS, although at the end of May President Maia Sandu had said the country would not leave for the time being. An August 2021 poll conducted in Moldova (prior to the start of Russia's invasion of Ukraine ) found that 48.1% of respondents supported Moldova's withdrawal from the CIS. On 30 November 2022, Popescu stated that Moldova will suspend its participation in CIS meetings, and on 23 February 2023 stated that Moldova has started withdrawing from multiple treaties that

11716-433: The proximity to the ability to transport valuable commodities, businesses are strongly motivated to influence the siting of a super grid to their benefit. The cost of alternative power is the delivered price of electricity, and if the production of electricity from North Dakota wind or Arizona solar is to be competitive, the distance of the connection from the wind farm to the interstate transmission grid must not be great. This

11832-491: The qualitative smart grid features that allow instantaneous coordination and balancing of intermittent power sources across international boundaries, the quantitative comprehensiveness has a quality all its own. The claim is made that super grids open up markets. In the same way that freeways revolutionized interstate transport and the Internet revolutionized online commerce when comprehensive high-capacity networks were built, it

11948-524: The same day. After the end of the dissolution process of the Soviet Union, Russia and the Central Asian republics were weakened economically and faced declines in GDP . Post-Soviet states underwent economic reforms and privatisation . The process of Eurasian integration began immediately after the break-up of the Soviet Union to salvage economic ties with Post-Soviet republics. On 22 January 1993,

12064-515: 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

12180-513: 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

12296-472: The situation of human rights in other CIS member states. The Commonwealth of Independent States continues to face serious challenges in meeting even basic international standards. The CIS Charter establishes the Council of Ministers of Defence , which is vested with the task of coordinating military cooperation of the CIS member states who wish to participate. In May 1992, six post-Soviet states belonging to

12412-404: 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

12528-433: 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

12644-414: 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

12760-635: The world's poorest human rights records. Many activists point to examples such as the 2005 Andijan massacre in Uzbekistan to show that there has been almost no improvement in human rights since the collapse of the Soviet Union in Central Asia. The consolidation of power by President Vladimir Putin has resulted in a steady decline in the modest progress of previous years in Russia. In turn, this has led to little to no scrutiny by Russia when it comes to

12876-437: 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

12992-547: Was abolished. Instead, "the CIS Council of Defence Ministers created a CIS Military Cooperation Coordination Headquarters (MCCH) in Moscow, with 50 percent of the funding provided by Russia." General Viktor Samsonov was appointed as Chief of Staff. The headquarters has now moved to 101000, Москва, Сверчков переулок, 3/2. An important manifestation of integration processes in the area of military and defence collaboration of

13108-404: 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

13224-484: Was not a member. Ukraine has never applied for, or been granted, Associate member status. Following the start of the Russo-Ukrainian war in February 2014, relations between Ukraine and Russia deteriorated, leading Ukraine to consider ending its participation in the CIS. As Ukraine never ratified the Charter, it could cease its informal participation in the CIS. However, to fully terminate its relationship with

13340-471: Was one of the states which ratified the Creation Agreement in December 1991, making it a Founding State of the CIS, it chose not to ratify the CIS Charter as it disagrees with Russia being the only legal successor state to the Soviet Union. Thus it has never been a full member of the CIS. However, Ukraine had kept participating in the CIS, with the consent of the Council of Heads of States, even though it

13456-433: Was priced at $ 790 million and would require a 69 meter wide right of way. With 750 GW of new HVDC transmission capacity required for a European super grid, the land and money needed for new transmission lines would be considerable. In Europe, the energy security implication of a super grid has been discussed as a way in part to prevent Russian energy hegemony . In the US, advocates such as T. Boone Pickens have promoted

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