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Aguçadoura Demo/Test Site is a grid-connected offshore renewable energy test site off Aguçadoura/Póvoa de Varzim, Portugal, served by a single medium-voltage HVAC subsea export cable to an on-land substation. Sources describe a ~6.0–6.2 km subsea export cable linking the on-land substation at Aguçadoura to the test area ~5.5 km offshore, in ~40–60 m water depth. Reported export capacity/connection capability ranges from 3 MW (and 3.85 MVA) up to 4 MW, with export cable/switchgear described at 6.6 kV (also stated as 7.2 kV in one source) and an onshore step-up transformer to a 15 kV grid-connection voltage.
Landfall options
Landfall at Aguçadoura; cable pulled ashore through a pre-installed conduit installed by horizontal directional drilling beneath the beach dunes into the on-land substation (avoiding open trenching).
Grid connection options
Grid connection described via an onshore step-up transformer from 6.6 kV (subsea cable/switchgear voltage) to 15 kV grid-connection voltage at the on-land substation, exporting to Portugal’s national grid.
Cable protection