▁more ▁tur b ines ▁are ▁due ▁to ▁be ▁situated , ▁contrary ▁to ▁the ▁wishes ▁of ▁many ▁residents ▁of ▁the ▁county , ▁and ▁the ▁John ▁Mu ir ▁Trust . ▁ ▁Also , ▁the ▁sit ing ▁of ▁tur b ines ▁in ▁environment ally ▁sensitive ▁areas ▁has ▁led ▁to ▁the ▁death s ▁of ▁mig rat ory ▁and ▁native ▁birds , ▁such ▁as ▁on ▁Harris ▁where ▁a ▁rare ▁visitor ▁to ▁Scotland , ▁a ▁white - th ro ated ▁need let ail ▁was ▁witness ed ▁being ▁killed ▁by ▁a ▁tur bine . ▁ ▁I ne v it ably ▁some ▁carbon ▁em issions ▁are ▁produced ▁during ▁construction ▁and ▁transport . ▁The ▁precise ▁amounts ▁involved ▁are ▁a ▁matter ▁of ▁controvers y . ▁Man ufact ur ers ▁typically ▁state ▁that ▁carbon ▁em issions ▁are ▁' pa id ▁back ' ▁within ▁ 3 – 1 8 ▁months ▁of ▁production , ▁but ▁recent ▁research ▁claims ▁that ▁tur b ines ▁located ▁on ▁pe at ▁b ogs ▁create ▁incident al ▁em issions ▁that ▁may ▁increase ▁this ▁to ▁ 8 ▁years ▁or ▁more . ▁A ▁ 2 0 1 3 ▁financial ▁analysis ▁of ▁utility ▁companies ▁such ▁as ▁the ▁S SE ▁( former ly ▁Scottish ▁and ▁Southern ▁Electric ity ) ▁concluded ▁that ▁util ities ▁were ▁ha emor rh aging ▁c ash . ▁Const ruction ▁of ▁wind ▁far ms ▁by ▁the ▁elect rical ▁generating ▁industry ▁lead ▁to ▁dup lication ▁of ▁existing ▁power ▁plants ▁which ▁were ▁still ▁needed ▁as ▁backup ▁without ▁increasing ▁the ▁util ities ▁customer ▁base ▁or ▁their ▁output . ▁ ▁Scottish ▁Natural ▁Heritage ▁has ▁stated ▁that ▁the