The marine environment and bird life in and around Walney Offshore Windfarm have been carefully studied before construction of the wind farm was authorised. During the two years of construction, additional work has been done to check that construction activities remained within acceptable limits for noise or other disturbance.

As the wind farm is approaching completion, a series of surveys will be carried out during the next few years to keep an eye on any possible impact the wind farm may have. Only minor impact is expected on the seabed sediments and the marine fauna, including fish and shellfish encountered in and around the wind farm.