An important reason for selecting HVDC Light was that great difficulties were experienced in getting the necessary permits to build an additional overhead transmission line.
power plants are subjected to result in flicker and in variations of reactive power.
Equally important, great difficulties were experienced in getting the necessary permits to build an additional overhead transmission line.
HVDC Light’s capabilities to overcome the power quality problems in wind power plants and that the transmission was to utilise underground cables, encouraged the local utility
GEAB to decide to build the world’s first commercial HVDC Light transmission. GEAB is a subsidiary of
Vattenfall AB, which is financing the project together with the
Swedish National Energy Administration.
The transmission link between the southern part of Gotland and the city of Visby is rated 50 MW and was put into operation in June 1999. Two 70 km long extruded 80 kV HVDC Light underground cables, ploughed into ground close to each other, connect the terminal stations.