Onshore wind farms
In many wind farms along the coast and at inland sites, repowering projects serve to replace old wind turbines by new, larger and more powerful systems. Repowering often implies a new dimension in the system size. In many cases, there is cause to fear environmental impact of the large constructions, in particular upon bird life. BioConsult SH conducts investigations that are ordered by project developers and public institutions in order to assess repowering projects and their possible harmful effects. Recent studies deal with the collision risk of migratory birds and the behaviour of white-tailed eagles and Montagu’s harrier in relation to wind turbines. In addition to this, automatic registration systems and detectors record bats as part of environmental impact studies.