According to the developer, SeaGen is sited roughly 1km south of the ferry route between Strangford and Portaferry, approximately 400m from the shoreline.

When fully operational in summer 2008, its 16m diameter, twin rotors are expected to operate for up to 18-20 hours per day, producing enough clean electricity for use by 1,000 homes.

Marien Current Turbines noted that this system is four times larger than any other tidal stream project so far built, including its own 300kW Seaflow system installed off Lynmouth, Devon, in 2003.