This is a list of electricity-generating power stations in Northern Ireland, sorted by type and name, with installed capacity (May 2011).
*Joint venture with Scottish and Southern Energy Northern Ireland was home to the world's first commercially viable tidal stream generator.
The installation went live and was connected to the grid in mid-December, 2008, injecting an extra 1.2 megawatts of electricity.
[8] By March 2010, the turbine had passed an operating time of over 1,000 hours - a first for any marine energy device.
While there has been no negative affect to the environment - a special protected wildlife area - it has been noticed that porpoises stop communicating while passing the device.