List of high-voltage underground and submarine cables
This is a list of high voltage (above 150 kV) AC electrical  transmission lines. This list is incomplete. For high-voltage direct current, both underground and submarine, see List of HVDC projects. Austria

Belgium

Belgium/Germany

Czech Republic

Denmark

Denmark/Germany

Denmark/Netherlands

Denmark/Norway

Denmark/Sweden

Egypt/Jordan

Germany

Germany/Norway

Germany/Sweden

Morocco/ Spain

Italy

Italy / Malta

Luxembourg

Netherlands

Netherlands/Norway

New Zealand

Norway

Spain

Switzerland/ Italy

Turkey

United Kingdom

UK – Europe

Canada

References

High voltage