TenneT

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| image2 =[https://www.tennet.eu/grid/grid-maps Grid Maps for Germany and Netherlands on- and offshore] (5 MB)

| image3 =[http://www.tennet.eu/fileadmin/user_upload/Company/Publications/Gridmaps/NL/Gridmap_TenneT_NL.pdf NL+DE grid map] (7 MB) [https://web.archive.org/web/20170314232628/http://www.tennet.eu/fileadmin/user_upload/Company/Publications/Gridmaps/NL/Gridmap_TenneT_NL.pdf Archive]

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TenneT was formed in 1998 when the Dutch electricity industry was liberalised, and was incorporated as a business in 2001 with the passing of the Electricity Production Sector Transition Act. Its statutory tasks included management of the national transmission grid and maintaining the balance between electrical supply and demand. In 2003, it acquired the regional system operator Transportnet Zuid-Holland.

{{citation

| first = M. | last = Cohen

| title = International Directory of Company Histories

| volume = 78

| year = 2006

| publisher = St. James Press

| isbn = 978-1-55862-582-2}}

TenneT moved beyond these regulated businesses in 2004 when it entered the gas market by acquiring EnergieKeuze, an online gas and power contract exchange market. In 2005 TenneT further expanded its operations when, together with the Belgian and French TSOs Elia and RTE and the APX and Powernext power exchanges, it formed the Belgian Power Exchange Belpex. This granted it a right to participate in the Belgian electricity market.

File:Regelzonen mit Übertragungsnetzbetreiber in Deutschland.png, Amprion, and TransnetBW]]

Since 1 January 2010, Tennet owns the German high‑voltage grid operator Transpower Stromübertragungs GmbH, formerly a part of E.ON, now renamed to Tennet TSO GmbH. The agreed value of transaction was €885 million. The company quoted several reasons for the merger, including price equalization, improved grid balancing, greater insight into grid situations, and better possibilities for sustainable development in both countries.

On 1 March 2018, the European Commission opened a formal antitrust investigation against TenneT, alleging it was deliberately bottlenecking the grid connection between Denmark and Northern Germany, preventing cheap wind and hydro power from Scandinavia from being exported to the German market. The Commission adopted a decision on 7 December 2018, imposing binding obligations on TenneT to allow at least 75% of the capacity to be utilized after a 6-month implementation period, as well as to expand the connection capacity from 1300MW to 2625MW by January 2026.{{cite web |title=Antitrust: Commission imposes binding obligations on TenneT to increase electricity trading capacity between Denmark and Germany |url=https://ec.europa.eu/commission/presscorner/detail/en/IP_18_6722 |publisher=European Commission |accessdate=29 December 2019}}{{cite news |title=EU tells German grid operator TenneT to raise access for Nordic power |url=https://uk.reuters.com/article/uk-eu-antitrust-tennet/eu-tells-german-grid-operator-tennet-to-raise-access-for-nordic-power-idUKKBN1O619E |archive-url=https://web.archive.org/web/20181207145249/https://uk.reuters.com/article/uk-eu-antitrust-tennet/eu-tells-german-grid-operator-tennet-to-raise-access-for-nordic-power-idUKKBN1O619E |url-status=dead |archive-date=December 7, 2018 |accessdate=29 December 2019 |publisher=Reuters |date=7 December 2018}}

Early 2023, Tennet announced that the Dutch and German governments were discussing a potential sale of the Germany grid of Tennet for a price of €22 billion, as the Dutch government was reluctant to provide the growing investment cost for the German grid.{{Cite web |title=‘Nederland dichtbij verkoop TenneT Duitsland’ |url=https://fd.nl/politiek/1510460/nederland-dichtbij-verkoop-tennet-duitsland |access-date=2024-06-20 |website=FD.nl |language=nl}} The sale was abandoned in 2024, due to the German government lacking the required budget. In the meantime the Dutch government had provided the company a €25 billion loan.{{Cite web |title=Overheid loopt miljarden mis; verkoop TenneT Duitsland gestaakt |url=https://www.bnr.nl/nieuws/economie/10550491/overheid-loopt-miljarden-mis-verkoop-tennet-duitsland-gestaakt |access-date=2024-06-20 |website=bnr.nl |language=nl-NL}}

TenneT is a partner in European Market Coupling Company.

In 2006, TenneT entered into construction of the 700 MW NorNed undersea HVDC submarine power cable with the Norwegian transmission operator Statnett. Commercial operation of the link was delayed by poor weather and a break in the cable, but it eventually entered operation on the night of 6 May 2008.

{{citation

| publisher = TenneT

| title = NorNed: Progress

| url = http://www.tennet.org/english/projects/norned_/voortgang.aspx

| accessdate = 2008-02-12}}

Connecting the Norwegian and Dutch grids at Feda and Eemshaven, the ±450 kV bipolar cable is, at {{convert|580|km|mi}}, the longest undersea power line in the world.

{{citation

| title = Closing the Baltic ring

| journal = Modern Power Systems

| date = 28 July 2006

| url = http://www.modernpowersystems.com/story.asp?storyCode=2037834}}

During the first two months of test operations, it generated approximately €50 million in revenue, greatly exceeding estimates, and recovering 12% of its cost of construction.

{{citation

|title=World's longest subsea high-voltage link opened

|newspaper=The Norway Post

|date=12 September 2008

|url=http://www.norwaypost.no/content/view/21065/

|accessdate=2 October 2008}}

TenneT formed a joint venture with the British transmission operator National Grid to construct the {{convert|260|km|adj=on}} 1,000 MW BritNed HVDC link between the Isle of Grain, Kent and Maasvlakte, near Rotterdam.

{{citation

| newspaper= Power Online

| title = BritNed Submarine HVDC Cable To Connect UK And The Netherlands

| url = http://www.poweronline.com/article.mvc/BritNed-Submarine-HVDC-Cable-To-Connect-UK-0001?VNETCOOKIE=NO

| accessdate = 2 October 2008}}

Operations begain on 1 April 2011,

{{Cite news

| title = Dutch, U.K. Regulators Approve BritNed Power Cable Trading

| first = Lars | last = Paulsson

| agency = Bloomberg

| date = 2011-02-24

| url= https://www.bloomberg.com/news/2011-02-24/dutch-u-k-regulators-approve-britned-power-cable-trading-1-.html

| access-date =2011-03-11}}

{{Cite press release

| title = BritNed cable electrically connects United Kingdom and the Netherlands

| date = 2011-04-01

| url = http://www.tennet.eu/de/en/news/article/britned-cable-electrically-connects-united-kingdom-and-the-netherlands.html

| publisher = TenneT

| access-date = 2016-05-10

| archive-url = https://web.archive.org/web/20160510080941/http://www.tennet.eu/de/en/news/article/britned-cable-electrically-connects-united-kingdom-and-the-netherlands.html

| archive-date = 2016-05-10

| url-status = dead

}}

and as of January 2012, electricity flow has mostly been from the Netherlands to the UK.Justin Wilkes et al. [http://www.ewea.org/fileadmin/ewea_documents/documents/publications/statistics/EWEA_stats_offshore_2011_02.pdf The European offshore wind industry key 2011 trends and statistics] p22 European Wind Energy Association, January 2012. Accessed: 26 March 2012. The BritNed interconnection is seen as a vital link for the foreseeable European super grid project.

A 700MW submarine power cable called COBRA (like NorNed, also from Eemshaven) to Denmark is operated with Energinet.dk

{{cite web

| url = http://www.tennet.org/english/projects/Cobra/index.aspx

| title = Planned electricity cable between the Netherlands and Denmark

| publisher = TenneT

| accessdate = 24 September 2010}}

from 2019, signing contracts with Siemens and Prysmian in 2016.[http://energinet.dk/EN/ANLAEG-OG-PROJEKTER/Nyheder/Sider/Siemens-og-Prysmian-skal-bygge-Cobra-kabel-mellem-Danmark-og-Holland.aspx Siemens and Prysmian will build the COBRA interconnection between Denmark and the Netherlands] {{Webarchive|url= https://web.archive.org/web/20160202173439/http://energinet.dk/EN/ANLAEG-OG-PROJEKTER/Nyheder/Sider/Siemens-og-Prysmian-skal-bygge-Cobra-kabel-mellem-Danmark-og-Holland.aspx |date=2016-02-02 }} Energinet.dk, 1 February 2016. Further 3½ GW offshore DC links are intended to provide a sea grid structure, and 6½ GW AC links are planned between Netherlands and Germany.{{cite web | url=http://www.4coffshore.com/windfarms/tennet-to-invest-billions-to-accommodate-interconnectors-and-offshore-wind-nid4115.html | title=TenneT to invest billions to accommodate interconnectors and offshore wind }}

Its subsidiary Transpower Stromübertragungs together with Statnett operates the 1400MW NORD.LINK cable between Norway and Germany from 2020.

{{Cite news

| title = Statnett and E.ON mull Norway-Germany subsea cable

| publisher = PennWell Corporation

| work = Power Engineering International

| date = 2008-01-10

| url= http://www.powergenworldwide.com/index/display/articledisplay/316607/articles/power-engineering/projects-contracts/statnett-and-eon-mull-norway-germany-subsea-cable.html

| accessdate =2008-01-13}}

TenneT builds the 2 GigaWatt SuedLink, an onshore DC link between Hamburg and south Germany (near Frankfurt), but local opposition means that a timeline is unclear.{{Cite web|url=http://suedlink.tennet.eu/suedlink/bedarf/suedlink-entscheidender-faktor-der-energiewende.html|title = SuedLink - TenneT}} Both SuedLink and NORD.LINK are on the EU "Projects of Common Interest" list, and SuedLink is supported by EU with €40 million.{{cite web|url= http://europa.eu/rapid/press-release_IP-17-280_en.htm |title= EU invests €444 million in key energy infrastructure|publisher=European Commission |date=17 February 2017|accessdate=26 February 2017}}[http://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=OJ:JOL_2016_019_R_0001&from=EN Projects of common interest (PCI)] page 5{{cite web |title=Wind power line SuedLink to be equipped with Siemens Energy HVDC technology |url=https://www.windtech-international.com/projects-and-contracts/wind-power-line-suedlink-to-be-equipped-with-siemens-energy-hvdc-technology |website=www.windtech-international.com}}

TenneT plans onshore AC upgrades in North Germany, connecting new wind power to some of the above DC links.[http://www.tennet.eu/de/fileadmin/downloads/Netz-Projekte/Onshore/Westkuestenleitung/2015-Leitungsbau-Schleswig-Holstein_V9.pdf Leitungsbauprojekte in Schleswig-Holstein] {{Webarchive|url=https://web.archive.org/web/20160413045430/http://www.tennet.eu/de/fileadmin/downloads/Netz-Projekte/Onshore/Westkuestenleitung/2015-Leitungsbau-Schleswig-Holstein_V9.pdf |date=2016-04-13 }} (Stand: Oktober 2015)

File:north sea eez.PNGs in the North Sea]]

{{main|North Sea Wind Power Hub}}

In 2016, TenneT suggested a 6 km² artificial island in the Dutch corner of the Dogger Bank in the middle of the North Sea, connecting several GigaWatts of offshore wind farms with alternating current. Converters on the island would then transmit direct current to the countries around the North Sea in a more economic manner than if each wind farm had its own cable to the country building it.{{cite web|url= http://www.businessgreen.com/bg/news/2461249/tennet-unveils-vision-for-wind-energy-island-hub-in-north-sea |title=TenneT unveils vision for wind energy island 'hub' in North Sea|work=businessgreen.com |date=13 June 2016|accessdate=10 August 2016}}{{cite web |url= http://www.tennet.eu/our-key-tasks/innovations/north-sea-infrastructure/ |title= North Sea Infrastructure |publisher= TenneT |accessdate= 10 August 2016 |archive-url= https://web.archive.org/web/20170308233832/http://www.tennet.eu/our-key-tasks/innovations/north-sea-infrastructure |archive-date= 2017-03-08 |url-status= live }} TenneT called for feasibility studies in 2017,{{cite web|url= http://www.4coffshore.com/windfarms/tennet-tenders-for-artificial-island-nid5313.html |title=TenneT tenders for artificial Island|work=4c Offshore|date=14 February 2017|accessdate=23 February 2017}} and signed an agreement with Energinet.{{cite web|title=First meeting of North Seas Energy Forum|url= https://ec.europa.eu/energy/en/news/first-meeting-north-seas-energy-forum-held |website=European Commission|accessdate=23 March 2017}} The challenge of coordinating several DC links is studied by the Technical University of Denmark using the Kriegers Flak connector as an example.{{cite web|url= http://www.offshorewind.biz/2017/04/18/new-danish-project-to-support-tennets-power-link-concept/ |title=New Danish Project to Support TenneT's Power Link Concept|publisher= |date=18 April 2017|accessdate=19 April 2017}}

{{Expand German|Suedlink|section=true|date=June 2023}}

In Germany, most of the wind-power generation is located in the North, while most of the solar power plants are in the South. {{as of|2023}}, cases of deficit of wind power in the North require using gas and coal powered power plants, even if the solar power is abundant in the South, and vice versa. To allow for a more robust redistribution of electricity, an almost 700 kilometer high-voltage direct current transmission line called "Suedlink" (sometimes spelled "Südlink") is planned to be built, connecting North of the country to its South. The overhead power line was originally planned to be finished in 2022. However, amid protest from local residents, the plan had to be converted to an underground power delivery system, and scheduled to be finished in 2028.{{Cite AV media|via=YouTube|url=https://www.youtube.com/watch?v=u-DsDuTceTo|title=This is what's REALLY holding back wind and solar|date=2 June 2023|type=Television production|publisher=Deutsche Welle

|last1=Rohwer-Kahlmann|first1=Malte

}} It is expected to provide four gigawatts of electricity to around 10 million households.{{cite news |title=Demonstration gegen Stromtrasse Südlink in Südthüringen {{!}} MDR.DE |date=9 October 2022 |url=https://www.mdr.de/nachrichten/thueringen/sued-thueringen/schmalkalden-meiningen/stromtrasse-suedlink-demonstration-anwohner-verlauf-100.html |website=www.mdr.de |publisher=Mitteldeutscher Rundfunk |access-date=3 June 2023 |language=de}}

The new plan continues to be protested by residents and land owners close to the route of the line. Opponents of the power line cite damage to the environment and habitat, loss of the development opportunities for the local communities as arguments against it.{{cite news |last1=Bräuer |first1=Jan |title=Südlink steckt weiter in der Planungsphase {{!}} MDR.DE |url=https://www.mdr.de/nachrichten/thueringen/west-thueringen/wartburgkreis/strom-windenergie-suedlink-100.html |access-date=3 June 2023 |work=www.mdr.de |publisher=Mitteldeutscher Rundfunk |date=6 December 2021 |language=de}} Demonstrators' claim is that instead of big distributors like TenneT, Germany should rely more on a decentralized system of photovoltaics, wind energy and hydrogen.

{{Portal|Germany|Energy|Companies}}

• 50Hertz Transmission
• Amprion
• Elia System Operator

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• {{Official website|http://www.tennet.eu}} {{in lang|en}}

{{European Network of Transmission System Operators for Electricity}}

Category:Electric power transmission system operators in Germany

Category:Electric power transmission system operators in the Netherlands

Category:Companies established in 1998

Category:Government-owned companies of the Netherlands

Category:Government-owned energy companies