BBC reports: [edited]
State of the art wind turbines with a diameter bigger than the London Eye are being assembled at Belfast Harbour. The 32 turbines are destined for the sea off Liverpool.
Once running, they will generate enough electricity for a city twice the size of Belfast - about 230,000 homes.
At peak operation each turbine can produce the same amount of energy in one day as contained in 22,600 barrels of oil.