ENTSO-E Member Companies
Transmission System Operators (TSOs) are responsible for the bulk transmission of electric power on the main high voltage electric networks. TSOs provide grid access to the electricity market players (i.e. generating companies, traders, suppliers, distributors and directly connected customers) according to non-discriminatory and transparent rules. In order to ensure the security of supply, they also guarantee the safe operation and maintenance of the system. In many countries, TSOs are in charge of the development of the grid infrastructure too. TSOs in the European Union internal electricity market are entities operating independently from the other electricity market players.
41 TSOs from 34 countries are members of ENTSO-E (the European Network of Transmission System Operators for Electricity).
Country | Company | Abbr. / Website |
AT Austria | Austrian Power Grid AG Vorarlberger Übertragungsnetz GmbH | |
BA Bosnia and Herzegovina | Nezavisni operator sustava u Bosni i Hercegovini | NOS BiH |
BE Belgium | Elia System Operator SA | Elia |
BG Bulgaria | Electroenergien Sistemen Operator EAD | ESO |
CH Switzerland | Swissgrid ag | Swissgrid |
CY Cyprus | Cyprus Transmission System Operator | Cyprus TSO |
CZ Czech Republic | ČEPS a.s. | |
DE Germany |
TransnetBW GmbH TenneT TSO GmbH Amprion GmbH 50Hertz Transmission GmbH |
|
DK Denmark | Energinet.dk | Energinet.dk |
EE Estonia | Elering AS | Elering AS |
ES Spain | Red Eléctrica de España: S.A. | REE |
FI Finland | Fingrid OyJ | Fingrid |
FR France | Réseau de Transport d'Electricité | RTE |
GB United Kingdom | National Grid Electricity Transmission plc System Operator for Northern Ireland Ltd Scottish Hydro Electric Transmission plc Scottish Power Transmission plc | National Grid SONI SHETL SPTransmission |
GR Greece | Independent Power Transmission Operator S.A. | IPTO |
HR Croatia | HOPS d.o.o. | HOPS |
HU Hungary | MAVIR Magyar Villamosenergia-ipari Átviteli Rendszerirányító Zártkörűen Működő Részvénytársaság | MAVIR ZRt. |
IE Ireland | EirGrid plc | EirGrid |
IS Iceland | Landsnet hf | Landsnet |
IT Italy | Terna - Rete Elettrica Nazionale SpA | Terna |
LT Lithuania | Litgrid AB | Litgrid |
LU Luxembourg | Creos Luxembourg S.A. | Creos Luxembourg |
LV Latvia | AS Augstsprieguma tÏkls | Augstsprieguma tÏkls |
ME Montenegro | Crnogorski elektroprenosni sistem AD | Crnogorski elektroprenosni sistem |
MK FYR of Macedonia | Macedonian Transmission System Operator AD | MEPSO |
NL Netherlands | TenneT TSO B.V. | TenneT NL |
NO Norway | Statnett SF | Statnett |
PL Poland | PSE S.A. | PSE S.A. |
PT Portugal | Rede Eléctrica Nacional, S.A. | REN |
RO Romania | C.N. Transelectrica S.A. | Transelectrica |
RS Serbia | JP Elektromreža Srbije | EMS |
SE Sweden | Svenska Kraftnät | SVENSKA KRAFTNÄT |
SI Slovenia | ELES, d.o.o. | ELES |
SK Slovak Republic | Slovenska elektrizacna prenosova sustava, a.s. | SEPS |