A nearly complete list of European TSOs


Published: 22. February 2017

TSOs, Transmission System Operators, European Power Grid, Power Grid Voltage, European Power Grid The European power grid at a glance: This list of European Transmission System Operators (TSOs) shows most of the European power grids with their key figures: The circuit length and the shares of the voltage levels.

Same as our list of Power & energy exchanges worldwidethis is a list in progress. We give our best to keep it correct, up to date and to gather the still missing information.

If you have additional information to complete or enhance this list or if you find errors in this list, please write us an E-Mail at info@next-kraftwerke.com. Please do also write us if you are looking for an energy trader or energy solutions in the listed countries – we may already be active in the region or country that you are looking for.

CountryTSOCircuit Length¹ (km)Voltage Level
400-380 kV (%)
Voltage Level
220-150 kV (%)
Voltage Level
132-50 kV (%)
AlbaniaOST2,482104644
ArmeniaCJSC4,492 (2010)/2971
AustriaAPG6,971354817
AzerbaijanAzerEnerji7,88020 (330 kV)
6 (500 kV)
1955
BelarusNo special TSO²22,250 (2009)31/69
BelgiumELIA>8,000154738
Bosnia and
Herzegovina
ISOB&H6,341 (2014)142462
BulgariaNEK14,610 (2005)16
1 (750 kV)
1964
CroatiaHOPS7,239171667
CyprusCTSO-//100
Czech RepublicČEPS5,81068311
DenmarkEnerginet.dk6,800284824
EstoniaElering5,34929368
FinlandFingrid14,000311752
FranceRTE105,000212653
GeorgiaGSE6,049<1
14 (500 kV)
2758
GermanyTransnetBW
TenneT
Amprion
50Hertz Transmission
35,0005941/
Great BritainNGT26,550592120
GreeceADMIE11,136 (2012)27721
HungaryMAVIR3,750 (2011)61
6 (750 kV)
294
IcelandLandsnet>3,000/2674
IrelandEirGrid6,721102961
ItalyTerna72,6001981/
KosovoKOSTT1,211161965
LatviaAugstsprieguma tÏkls5,27324/76
LithuaniaLitgrid6,68725/75
LuxembourgCreos9,557/100/
MoldovaMoldelectrica4,725---
MontenegroCGES1,240232849
FYR of MacedoniaMEPSO2,11625/75
The NetherlandsTenneT TSO B.V.10,051 (2014)2872/
Northern IrelandSONI850 (2010)/3862
NorwayStatnett 11,00073/27
PolandPSE Operator14,06940
1 (740 kV)
581
PortugalREN8,8052872/
RomaniaTranselectrica8,7595545/
Russian FederationFederal Grid
(95% of Russian Transmission)
139,100---
ScotlandScottish Hydro-Electric
Transmission
5,000---
Scotland&EnglandSP Transmission4,320 (2014)---
SerbiaEMS9,500172162
SloveniaELES2,843 (2013)241265
Slovak RepublicSEPS2,85968293
SpainREE39,905 (2014)49465
SwedenSvenska K.15,00069265
SwitzerlandSwissgrid6,7002773/
TurkeyTEİAŞ53,72533<166
Ukraine³Ukrenergo23,00579 (800-330 kV)183 (110-35 kV)


¹ TSO functions shared between BELENERGO, ODI and Oblenergos
² some kilometers include submarine or cable lines
³ including Crimea

Source: ENTSO-E


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Björn supports our communication team with background knowledge and articles. The cycling enthusiast has a strong interest in alternative mobility systems.

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Christian is online editor at Next Kraftwerke and responsible for the website, content and blog articles. The technically savvy author and writer is interested in all aspects of renewable energy with lasting enthusiasm.