Trident Energy’s experimental device was being towed out to sea to begin a year-long offshore trial when the accident happened on Monday, 21 September near Southwold, Suffolk, eastern England.

The technology was being tested in the sea to gather detailed information on how the machine performed.

The generator was to have been placed 8km off Southwold for the year-long evaluation that may lead to new wave farms being developed that are capable of powering 60,000 homes.

Coastguards