The HVDC Visby–Näs is a bipolar

HVDC A high-voltage direct current (HVDC) electric power transmission system (also called a power superhighway or an electrical superhighway) uses direct current (DC) for electric power transmission, in contrast with the more common alternating curre ...

electric power transmission system between

Visby Visby () is an urban area in Sweden and the seat of Gotland Municipality in Gotland County on the island of Gotland with 24,330 inhabitants . Visby is also the episcopal see for the Diocese of Visby. The Hanseatic city of Visby is arguably th ...

and a

wind power Wind power or wind energy is mostly the use of wind turbines to generate electricity. Wind power is a popular, sustainable, renewable energy source that has a much smaller impact on the environment than burning fossil fuels. Historically ...

centre near Näs on Gotland, Sweden. The project went into service in 1999. The system operates at 80 kV with a maximum power of 50 megawatts. This HVDC system allows for voltage regulation in the connected AC systems. Because obtaining a right-of-way for an overhead line is a lengthy and expensive procedure, the 70 kilometer line is constructed as an underground cable. Since an

alternating current Alternating current (AC) is an electric current which periodically reverses direction and changes its magnitude continuously with time in contrast to direct current (DC) which flows only in one direction. Alternating current is the form in whic ...

three-phase underground cable would have been more expensive, the HVDC system was selected for this project.

Sites

External links

Gotland: the first commercial HVDC Light project
HVDC transmission lines Electric power infrastructure in Sweden Gotland Visby Energy infrastructure completed in 1999 1999 establishments in Sweden {{Gotland-geo-stub