DescriptionACC BAU Aleksander Czarnecki is a Polish civil works contractor focused on wind-farm construction. Its services cover turbine foundations, access roads, crane pads, grouting, waterproofing and foundation repairs. The company has reported foundation and road works at the Wysoka and Widuchowa wind farms in Poland, alongside grout works at Człuchów and Sompolno. It operates across European wind markets, combining new-build infrastructure with remedial foundation services.