The produced power is fed to a substation to be built by Eltra. After stepping-up to 150 kV, the power is conveyed to shore. The substation platform is designed as a tripod construction with a steel building with a surface area of approx. 20 x 28 m, placed some 14 m above mean sea level. Among others, the platform accommodates the following technical installations:

• 36 kV switch gear
• 36/150 kV transformer
• 150 kV switch gear
• Control and instrumentation system, and communication unit
• Emergency  diesel generator, incl. 2 x 50 tonnes of fuel
• Sea water-based fire-extinguishing equipment
• Staff and service facilities
• Helipad
• Crawler crane
• MOB boat (Man Over Board)

Substation model

A trenched sub-marine cable connects the Horns Rev offshore wind farm to the onshore grid. The sub-marine cable is installed by Eltra who are in charge of making the produced power available to the grid. Triple-core 150 kV cables with sub-marine armouring is used.