This is the 16459th most frequent Polish word.
wiatrowe
"Wind-related" or "wind-powered."
The word 'wiatrowe' is an adjective describing 'turbiny' (turbines), indicating that they are powered by wind.
Turbiny wiatrowe produkują energię elektryczną.
Wind turbines produce electric energy.
Though 'wiatrowe' is not explicitly present, its noun form 'wiatrowych' is used to modify 'farm' (farms), to indicate these farms use wind energy.
Potrzebujemy więcej farm wiatrowych.
We need more wind farms.
'Wiatrowej' is the genitive feminine singular form of 'wiatrowy', an adjective used here to specify the type of power station (wind-powered).